details:   https://code.tryton.org/tryton/commit/8a8178270374
branch:    default
user:      Cédric Krier <[email protected]>
date:      Tue Apr 07 17:40:41 2026 +0200
description:
        Add naiad library
diffstat:

 .gitlab-ci.yml                        |   13 +
 .gitlab-scripts/generate-doc.sh       |    2 +
 doc/conf.py                           |    5 +-
 doc/index.rst                         |    3 +
 naiad/CHANGELOG                       |    1 +
 naiad/COPYRIGHT                       |   15 +
 naiad/LICENSE                         |  841 ++++++++++++++++++++++++++++++++++
 naiad/README.rst                      |    1 +
 naiad/doc/conf.py                     |   79 +++
 naiad/doc/index.rst                   |   60 ++
 naiad/doc/releases.rst                |    7 +
 naiad/doc/requirements-doc.txt        |    3 +
 naiad/naiad/__init__.py               |  544 +++++++++++++++++++++
 naiad/naiad/_json.py                  |  107 ++++
 naiad/naiad/tests/__init__.py         |    2 +
 naiad/naiad/tests/common.py           |   45 +
 naiad/naiad/tests/test_action.py      |   41 +
 naiad/naiad/tests/test_create.py      |   26 +
 naiad/naiad/tests/test_delete.py      |   23 +
 naiad/naiad/tests/test_get.py         |   22 +
 naiad/naiad/tests/test_headers.py     |   48 +
 naiad/naiad/tests/test_readme.py      |   41 +
 naiad/naiad/tests/test_record.py      |  189 +++++++
 naiad/naiad/tests/test_report.py      |   26 +
 naiad/naiad/tests/test_search.py      |   66 ++
 naiad/naiad/tests/test_store.py       |   28 +
 naiad/naiad/tests/test_update.py      |   26 +
 naiad/pyproject.toml                  |   51 ++
 naiad/tox.ini                         |   21 +
 trytond/trytond/protocols/wrappers.py |    2 +-
 30 files changed, 2336 insertions(+), 2 deletions(-)

diffs (2507 lines):

diff -r 44edc21632c6 -r 8a8178270374 .gitlab-ci.yml
--- a/.gitlab-ci.yml    Sat Apr 04 23:03:18 2026 +0200
+++ b/.gitlab-ci.yml    Tue Apr 07 17:40:41 2026 +0200
@@ -373,6 +373,19 @@
     PACKAGE: proteus
     TAG_PATTERN: '/^proteus-.*/'
 
+check-doc-naiad:
+  extends: .check-doc
+  variables:
+    PACKAGE: naiad
+
+test-naiad:
+  extends: .test-tox
+  after_script:
+    - .gitlab-scripts/rewrite-coverage-paths.py "" "${PACKAGE}/" 
${PACKAGE}/junit.xml ${PACKAGE}/coverage.xml
+  variables:
+    PACKAGE: naiad
+    TAG_PATTERN: '/^naiad-.*/'
+
 check-doc-tryton:
   extends: .check-doc
   variables:
diff -r 44edc21632c6 -r 8a8178270374 .gitlab-scripts/generate-doc.sh
--- a/.gitlab-scripts/generate-doc.sh   Sat Apr 04 23:03:18 2026 +0200
+++ b/.gitlab-scripts/generate-doc.sh   Tue Apr 07 17:40:41 2026 +0200
@@ -22,6 +22,8 @@
         package="client-desktop"
     elif [ "${package}" = "proteus" ]; then
         package="client-library"
+    elif [ "${package}" = "naiad" ]; then
+        package="client-rest"
     elif [ "${package}" = "trytond-gis" ]; then
         package="backend-gis"
     elif [ "${package}" = "." ]; then
diff -r 44edc21632c6 -r 8a8178270374 doc/conf.py
--- a/doc/conf.py       Sat Apr 04 23:03:18 2026 +0200
+++ b/doc/conf.py       Tue Apr 07 17:40:41 2026 +0200
@@ -9,6 +9,7 @@
     trytond_gis_url = base_url + '/backend-gis/'
     tryton_url = base_url + '/client-desktop/'
     proteus_url = base_url + '/client-library/'
+    naiad_url = base_url + '/client-rest/'
 else:
     modules_url = (
         'https://docs.tryton.org/${series}/modules-{module}/')
@@ -16,6 +17,7 @@
     trytond_gis_url = 'https://docs.tryton.org/${series}/backend-gis/'
     tryton_url = 'https://docs.tryton.org/${series}/client-desktop/'
     proteus_url = 'https://docs.tryton.org/${series}/client-library/'
+    naiad_url = 'https://docs.tryton.org/${series}/client-rest/'
 
 
 def get_info():
@@ -84,6 +86,7 @@
     'trytond_gis': (trytond_gis_url.format(series=version), None),
     'tryton': (tryton_url.format(series=version), None),
     'proteus': (proteus_url.format(series=version), None),
+    'naiad': (naiad_url.format(series=version), None),
     }
 intersphinx_mapping.update({
         m: (modules_url.format(
@@ -93,4 +96,4 @@
 linkcheck_ignore = [r'/.*', r'https://demo.tryton.org/*']
 del (
     get_info, info, base_url, modules_url, trytond_url, trytond_gis_url,
-    tryton_url, proteus_url)
+    tryton_url, proteus_url, naiad_url)
diff -r 44edc21632c6 -r 8a8178270374 doc/index.rst
--- a/doc/index.rst     Sat Apr 04 23:03:18 2026 +0200
+++ b/doc/index.rst     Tue Apr 07 17:40:41 2026 +0200
@@ -17,6 +17,9 @@
 :doc:`Scripting Client <proteus:index>`
    The library to access models, wizards and reports like a client.
 
+:doc:`REST Client <naiad:index>`
+   The library to access REST API.
+
 Backend
 -------
 
diff -r 44edc21632c6 -r 8a8178270374 naiad/CHANGELOG
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/CHANGELOG   Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,1 @@
+* Initial release
diff -r 44edc21632c6 -r 8a8178270374 naiad/COPYRIGHT
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/COPYRIGHT   Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,15 @@
+Copyright (C) 2024 Cédric Krier <[email protected]>
+Copyright (C) 2024 B2CK SRL
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff -r 44edc21632c6 -r 8a8178270374 naiad/LICENSE
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/LICENSE     Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,841 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
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+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
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+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
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+Additional permissions that are applicable to the entire Program shall
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+apply only to part of the Program, that part may be used separately
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+  All other non-permissive additional terms are considered "further
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+
+  11. Patents.
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+  A patent license is "discriminatory" if it does not include within
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+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
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+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
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+to collect a royalty for further conveying from those to whom you convey
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+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
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+
+  14. Revised Versions of this License.
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+  The Free Software Foundation may publish revised and/or new versions of
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+be similar in spirit to the present version, but may differ in detail to
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+
+  Each version is given a distinguishing version number.  If the
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+Foundation.  If the Program does not specify a version number of the
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+
+  If the Program specifies that a proxy can decide which future
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+  Later license versions may give you additional or different
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff -r 44edc21632c6 -r 8a8178270374 naiad/README.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/README.rst  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,1 @@
+doc/index.rst
\ No newline at end of file
diff -r 44edc21632c6 -r 8a8178270374 naiad/doc/conf.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/doc/conf.py Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,79 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import os
+
+base_url = os.environ.get('DOC_BASE_URL')
+if base_url:
+    modules_url = base_url + '/modules-{module}/'
+    trytond_url = base_url + '/server/'
+else:
+    modules_url = 'https://docs.tryton.org/{series}/modules-{module}/'
+    trytond_url = 'https://docs.tryton.org/{series}/server/'
+
+
+def get_info():
+    import json
+    import subprocess
+
+    module_dir = os.path.dirname(os.path.dirname(__file__))
+
+    info = dict()
+
+    metadata_cmd = 'python3 -m build -qq --metadata'
+    if os.environ.get('DOC_NO_ISOLATION'):
+        metadata_cmd += ' --no-isolation'
+    metadata = subprocess.check_output(
+        metadata_cmd, shell=True, encoding='utf-8', cwd=module_dir).strip()
+    metadata = json.loads(metadata)
+    info['name'] = metadata['name']
+    info['description'] = metadata['summary']
+    major_version, minor_version, _ = metadata['version'].split('.', 2)
+    major_version = int(major_version)
+    minor_version = int(minor_version)
+    if minor_version % 2:
+        info['series'] = 'latest'
+        info['branch'] = 'branch/default'
+    else:
+        info['series'] = '.'.join(version.split('.', 2)[:2])
+        info['branch'] = 'branch/' + info['series']
+
+    return info
+
+
+info = get_info()
+
+html_theme = 'sphinx_book_theme'
+html_theme_options = {
+    'logo': {
+        'alt_text': "Tryton Documentation",
+        'image_light': 'https://docs.tryton.org/logo-light.svg',
+        'image_dark': 'https://docs.tryton.org/logo-dark.svg',
+        'link': base_url,
+        },
+    'home_page_in_toc': True,
+    'repository_provider': 'gitlab',
+    'repository_url': 'https://code.tryton.org/tryton',
+    'repository_branch': info['branch'],
+    'use_source_button': True,
+    'use_edit_page_button': True,
+    'use_repository_button': True,
+    'use_download_button': False,
+    'path_to_docs': 'naiad/doc',
+    }
+html_title = info['description']
+master_doc = 'index'
+project = info['name']
+release = version = info['series']
+default_role = 'ref'
+highlight_language = 'none'
+extensions = [
+    'sphinx_copybutton',
+    'sphinx.ext.intersphinx',
+    ]
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/', None),
+    }
+linkcheck_ignore = [r'/.*', r'https://demo.tryton.org/*']
+
+del get_info, info, base_url, modules_url, trytond_url
diff -r 44edc21632c6 -r 8a8178270374 naiad/doc/index.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/doc/index.rst       Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,60 @@
+==================
+Tryton REST Client
+==================
+
+A library to access Tryton's REST API.
+
+Example of usage
+----------------
+
+   >>> from naiad import Client, Record
+
+Configuration
+~~~~~~~~~~~~~
+
+   >>> import os
+   >>> url = os.environ.get('NAIAD_URL', 'https://localhost:8000/:memory:')
+   >>> client = Client(url, os.getenv('NAIAD_KEY'))
+
+Creating a new group
+~~~~~~~~~~~~~~~~~~~~
+
+   >>> group = Record('res.group')
+   >>> group.name = "New Group"
+   >>> group = client.store(group)
+   >>> group.id >= 0
+   True
+
+Searching a user
+~~~~~~~~~~~~~~~~
+
+   >>> admin, = client.search(
+   ...      'res.user', [('login', '=', 'admin')], fields=['login'])
+   >>> admin.login
+   'admin'
+
+Modifying a user
+~~~~~~~~~~~~~~~~
+
+   >>> admin.signature = "Administrator"
+   >>> admin.groups = [group]
+   >>> admin = client.store(admin, fields=['signature', 'groups.id'])
+   >>> admin.signature
+   'Administrator'
+   >>> group in admin.groups
+   True
+
+Calling an action
+~~~~~~~~~~~~~~~~~
+
+   >>> _ = client.action(admin, 'reset_password')
+
+Fetching a report
+~~~~~~~~~~~~~~~~~
+
+   >>> filename, content = client.report('res.user.email_reset_password', 
admin.id)
+
+.. toctree::
+   :maxdepth: 2
+
+   releases
diff -r 44edc21632c6 -r 8a8178270374 naiad/doc/releases.rst
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/doc/releases.rst    Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,7 @@
+.. _releases-index:
+
+=============
+Release notes
+=============
+
+.. include:: ../CHANGELOG
diff -r 44edc21632c6 -r 8a8178270374 naiad/doc/requirements-doc.txt
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/doc/requirements-doc.txt    Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,3 @@
+build
+sphinx_book_theme
+sphinx_copybutton
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/__init__.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/__init__.py   Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,544 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+"""
+A library to access Tryton's REST API
+"""
+import json
+import threading
+import time
+from base64 import urlsafe_b64encode
+from contextlib import contextmanager
+from email.message import Message
+from functools import partial, total_ordering
+
+import httpx
+
+from ._json import JSONDecoder, JSONEncoder
+
+__version__ = "7.9.0"
+__all__ = ['Client', 'Record', 'set_delete', 'set_remove']
+_json_decoder = JSONDecoder()
+
+_dumps = partial(json.dumps, cls=JSONEncoder, separators=(',', ':'))
+
+
+class Client:
+    """A client for REST API of Tryton based on httpx.Client.
+
+    Parameters:
+        - base_url: The URL to use to connect to the Tryton server including
+          the database.
+        - key: The Tryton application key used for user authentication.
+        - usages: An optional iterable containing the usage strings.
+        - context: An optional dictionary for setting the context.
+        - languages: An optional iterable containing language code strings or
+          combination of language code and quality.
+        - timeout: An optional httpx.Timeout configuration.
+        - limits: An optional httpx.Limits configuration.
+        - max_retries: The maximum number of retries.
+    """
+    def __init__(
+            self, base_url, key, usages=None, context=None, languages=None,
+            timeout=httpx.Timeout(timeout=5),
+            limits=httpx.Limits(
+                max_connections=100, max_keepalive_connections=20),
+            max_retries=5):
+        self.base_url = base_url
+        self.max_retries = max_retries
+        headers = {
+            'User-Agent': f'naiad/{__version__}',
+            }
+        if context:
+            headers['X-Tryton-Context'] = (
+                urlsafe_b64encode(_dumps(context).encode()).decode())
+        if languages:
+            headers['Accept-Language'] = _format_accept_language(languages)
+        if usages:
+            headers['X-Tryton-Usage'] = ','.join(usages)
+        self.client = httpx.Client(
+            base_url=self.base_url + '/rest',
+            auth=Auth(key),
+            headers=headers,
+            timeout=timeout,
+            limits=limits)
+
+    def _request(self, method, endpoint, **kwargs):
+        retries = 0
+        exception = None
+        while retries <= self.max_retries:
+            try:
+                response = self.client.request(method, endpoint, **kwargs)
+                response.raise_for_status()
+                if response.headers['Content-Type'] == 'application/json':
+                    content = response.json(object_hook=_json_decoder)
+                else:
+                    content = response.content
+                return response, content
+            except httpx.ConnectError as e:
+                retries += 1
+                wait_time = 2 ** (retries - 1)
+                time.sleep(wait_time)
+                exception = e
+        raise exception
+
+    def search(
+            self, model, domain=None, order=None, range_=None,
+            limit=None, offset=0, fields=None):
+        """Make a search and returns a list of Record instances.
+
+        Parameters:
+            - model: The name of the model to search on.
+            - domain: An optional Tryton domain.
+            - order: An optional Tryton order clause.
+            - range_: An optional pair consisting of the start and end
+              positions of the records to retrieve.
+            - limit: An optional size limit for the number of records to
+              retrieve.
+            - offset: An optional offset to start retrieving records.
+            - fields: An optional list of fields to read.
+
+        Note: If range_ is set, limit and offset are ignored and the result is
+        a couple containing start, end and size and the records.
+        """
+        assert range_ is None or (limit is None and offset == 0)
+        params = {}
+        if domain is not None:
+            params['d'] = urlsafe_b64encode(_dumps(domain).encode()).decode()
+        if order is not None:
+            params['o'] = urlsafe_b64encode(_dumps(order).encode()).decode()
+        headers = {}
+        if range_ is not None:
+            start, end = range_
+            headers['Range'] = f'records={start}-{end}'
+        else:
+            if offset != 0:
+                params['p'] = offset
+            if limit is not None:
+                params['s'] = limit
+        if fields:
+            params['f'] = fields
+        response, content = self._request(
+            'GET', f'/model/{model}', params=params, headers=headers)
+        records = [Record(**d) for d in content]
+        if range_:
+            start = end = size = None
+            if range_ := response.headers.get('Content-Range'):
+                unit, range_ = range_.split(' ', 1)
+                if unit == 'records' and '/' in range_:
+                    range_, size = range_.split('/', 1)
+                    try:
+                        start, end = map(int, range_.split('-'))
+                    except ValueError:
+                        pass
+                    try:
+                        size = int(size)
+                    except ValueError:
+                        pass
+            return (start, end, size), records
+        return records
+
+    def get(self, model, id, fields=None):
+        """Fetch and return a record.
+
+        Parameters:
+            - model: The name of the model.
+            - id: The ID of the record to fetch.
+            - fields: An optional list of fields to retrieve instead of the
+              defaults.
+        """
+        params = {}
+        if fields is not None:
+            params['f'] = fields
+        _, content = self._request(
+            'GET', f'/model/{model}/{id}', params=params)
+        return Record(**content)
+
+    def create(self, model, values, fields=None):
+        """Create and return the new record.
+
+        Parameters:
+            - model: The name of the model.
+            - values: A dictionary containing the values of the fields.
+            - fields: An optional list of fields to retrieve instead of the
+              defaults.
+        """
+        params = {}
+        if fields is not None:
+            params['f'] = fields
+        content = _dumps(values)
+        response, content = self._request(
+            'POST', f'/model/{model}',
+            headers={
+                'Content-Type': 'application/json',
+                },
+            params=params,
+            content=content)
+        return Record(**content)
+
+    def update(self, model, id, values, fields=None):
+        """Update and return the updated record.
+
+        Parameters:
+            - model: The name of the model.
+            - id: The ID of the record to update.
+            - values: A dictionary containing the values of the fields.
+            - fields: An optional list of fields to retrieve instead of the
+              defaults.
+        """
+        params = {}
+        if fields is not None:
+            params['f'] = fields
+        content = _dumps(values)
+        response, content = self._request(
+            'PUT', f'/model/{model}/{id}',
+            headers={
+                'Content-Type': 'application/json',
+                },
+            params=params,
+            content=content)
+        return Record(**content)
+
+    def delete(self, model, id=None):
+        """Delete a record.
+
+        Parameters:
+            - model: The name of the model or the Record instance to be
+              deleted.
+            - id: The ID of the record to delete.
+
+        Note: If a Record instance is specified, the ID must not be specified.
+        """
+        if id is None:
+            record = model
+            model = record._model
+            id = record.id
+        self._request('DELETE', f'/model/{model}/{id}')
+
+    def store(self, record, fields=None):
+        """Store a record and return the new/updated record.
+
+        It the record instance has no id, a new one is created otherwise it is
+        updated.
+
+        Parameters:
+            - record: The Record instance to store.
+            - fields: An optional list of fields to retrieve instead of the
+              defaults.
+        """
+        if record.id is None:
+            return self.create(
+                record._model, record.to_values(), fields=fields)
+        else:
+            return self.update(
+                record._model, record.id, record.to_values(), fields=fields)
+
+    def action(self, model, name, id=None, fields=None, kwargs=None):
+        """Launch an action and return the result
+
+        Parameters:
+            - model: The name of the model.
+            - name: The name of the action on the model.
+            - id: An optional ID for the record on which to perform the action.
+            - fields: An optional list of fields to retrieve instead of the
+              defaults if the action returns a Record.
+            - kwargs: An optional dictionary of additional arguments to pass to
+              the action.
+        """
+        if isinstance(model, Record):
+            record = model
+            model = record._model
+            if id is None:
+                id = record.id
+        params = {}
+        if fields is not None:
+            params['f'] = fields
+        content = _dumps(kwargs if kwargs is not None else {})
+        if id is None:
+            url = f'/model/{model}/{name}'
+        else:
+            url = f'/model/{model}/{id}/{name}'
+        response, content = self._request(
+            'POST', url,
+            headers={
+                'Content-Type': 'application/json',
+                },
+            params=params,
+            content=content)
+        if (id is not None
+                and isinstance(content, dict)
+                and content.get('__name__') == model):
+            return Record(**content)
+        return content
+
+    def report(self, name, id=None, data=None):
+        """Render a report and return the couple of file name and content.
+
+        Parameters:
+            - name: The name of the report.
+            - id: An option ID for the record on which to render the report.
+            - data: An optional dictionary containing additional data to be
+              passed to the report.
+        """
+        id = int(id)
+        content = _dumps(data or {})
+        response, content = self._request(
+            'GET', f'/report/{name}/{id}',
+            headers={
+                'Content-Type': 'application/json',
+                },
+            content=content)
+        if content_disposition := response.headers['Content-Disposition']:
+            msg = Message()
+            msg['content-disposition'] = content_disposition
+            filename = msg.get_filename()
+        else:
+            filename = 'data.bin'
+        return filename, content
+
+
+class Auth(httpx.Auth):
+    def __init__(self, token):
+        self.token = token
+
+    def auth_flow(self, request):
+        request.headers['Authorization'] = f'bearer {self.token}'
+        yield request
+
+
+class _ThreadLocal:
+    def __init__(self):
+        self._local = threading.local()
+
+    @property
+    def deleted(self):
+        if not hasattr(self._local, 'deleted'):
+            self._local.deleted = set()
+        return self._local.deleted
+
+    @property
+    def removed(self):
+        if not hasattr(self._local, 'removed'):
+            self._local.removed = set()
+        return self._local.removed
+
+
+_thread_local = _ThreadLocal()
+
+
+@contextmanager
+def set_delete(model, field):
+    """Return context manager to delete the missing records from relational
+    fields when storing a record.
+
+    Parameters:
+        - model: the name of the model.
+        - field: the name of the field.
+    """
+    _thread_local.deleted.add((model, field))
+    _thread_local.removed.discard((model, field))
+    try:
+        yield
+    finally:
+        _thread_local.deleted.discard((model, field))
+
+
+@contextmanager
+def set_remove(model, field):
+    """Return context manager to remove the missing records from relational
+    fields when storing a record.
+
+    Parameters:
+        - model: the name of the model.
+        - field: the name of the field.
+    """
+    _thread_local.deleted.discard((model, field))
+    _thread_local.removed.add((model, field))
+    try:
+        yield
+    finally:
+        _thread_local.removed.discard((model, field))
+
+
+@total_ordering
+class Record:
+    """A container that stores data from a Tryton record.
+
+    Parameters:
+        - __name__: The name of the model.
+        - id: An option ID of the record.
+    """
+    __slots__ = ('_model', 'id', '_raw', '_stored', '_modified')
+
+    def __init__(self, __name__=None, **kwargs):
+        self._model = __name__ or kwargs.pop('__name__')
+        self.id = kwargs.pop('id', None)
+        self._stored = {}
+        self._modified = {}
+        if self.id is None:
+            self._raw = {}
+            for name, value in kwargs.items():
+                setattr(self, name, value)
+        else:
+            self._raw = kwargs or {}
+
+    def __repr__(self):
+        return (
+            f'{self.__class__.__qualname__}'
+            f'({self._model!r}, id={self.id!r})')
+
+    def __contains__(self, name):
+        return name in dir(self)
+
+    def __int__(self):
+        return self.id
+
+    def __str__(self):
+        try:
+            return self.rec_name
+        except AttributeError:
+            return str(self.id) if self.id is not None else ''
+
+    def __eq__(self, other):
+        if isinstance(other, int):
+            return self.id == other
+        elif isinstance(other, Record):
+            return (self._model, self.id) == (other._model, other.id)
+        return NotImplemented
+
+    def __lt__(self, other):
+        if not isinstance(other, Record) or self._model != other._model:
+            return NotImplemented
+        return self.id < other.id
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __hash__(self):
+        return hash((self._model, self.id))
+
+    def __bool__(self):
+        return True
+
+    @classmethod
+    def _convert(cls, value):
+        if isinstance(value, dict) and value.get('__name__'):
+            value = cls(**value)
+        elif (isinstance(value, list)
+                and value
+                and isinstance(value[0], dict)
+                and value[0].get('__name__')):
+            value = tuple(cls(**v) for v in value)
+        return value
+
+    def __getattr__(self, name):
+        if name.startswith('__') and name.endswith('__'):
+            return super().__getattr__(name)
+        elif name in self._modified:
+            value = self._modified[name]
+        elif name in self._stored:
+            value = self._stored[name]
+        else:
+            try:
+                value = self._convert(self._raw.pop(name))
+                self._stored[name] = value
+            except KeyError:
+                raise AttributeError(name) from None
+        return value
+
+    def __setattr__(self, name, value):
+        if name in self.__slots__:
+            super().__setattr__(name, value)
+        elif value != getattr(self, name, None):
+            self._modified[name] = self._convert(value)
+
+    def __dir__(self):
+        return list(
+            self._modified.keys() | self._stored.keys() | self._raw.keys())
+
+    def to_dict(self):
+        "Return the record as dictionary"
+        result = {
+            '__name__': self._model,
+            'id': self.id,
+            }
+        for name in dir(self):
+            value = getattr(self, name)
+            if (isinstance(value, (list, tuple))
+                    and value and isinstance(value[0], Record)):
+                value = [v.to_dict() for v in value]
+            elif isinstance(value, Record):
+                value = value.to_dict()
+            result[name] = value
+        return result
+
+    def to_values(self):
+        """Return a dictionary of the modified data to be used for create or
+        update."""
+        result = {}
+        for name in dir(self):
+            value = getattr(self, name)
+            stored_value = self._stored.get(name)
+            if (
+                    (isinstance(value, (list, tuple))
+                        and value and isinstance(value[0], Record))
+                    or (isinstance(stored_value, (list, tuple))
+                        and stored_value
+                        and isinstance(stored_value[0], Record))):
+                actions = []
+                to_create, to_add, to_write = [], [], []
+                for record in value:
+                    if record.id is None:
+                        to_create.append(record.to_values())
+                    else:
+                        if record not in (stored_value or []):
+                            to_add.append(record.id)
+                        if save_value := record.to_values():
+                            to_write.append(('write', [record.id], save_value))
+                if stored_value:
+                    to_delete, to_remove = [], []
+                    for record in stored_value:
+                        if record in value:
+                            continue
+                        if (self._model, name) in _thread_local.deleted:
+                            to_delete.append(record.id)
+                        elif (self._model, name) in _thread_local.removed:
+                            to_remove.append(record.id)
+                        else:
+                            raise ValueError(
+                                f'missing deleted or removed for {name}')
+                    if to_delete:
+                        actions.append(('delete', to_delete))
+                    if to_remove:
+                        actions.append(('remove', to_remove))
+                if to_add:
+                    actions.append(('add', to_add))
+                if to_create:
+                    actions.append(('create', to_create))
+                if to_write:
+                    actions.extend(to_write)
+                value = actions
+                if not value:
+                    continue
+            elif value != stored_value:
+                if isinstance(value, Record):
+                    value = value.id
+            else:
+                continue
+            result[name] = value
+        return result
+
+
+def _format_accept_language(languages):
+    result = []
+    for value in languages:
+        if isinstance(value, str):
+            language, quality = value, 1
+        else:
+            try:
+                language, quality = value
+            except ValueError:
+                quality = 1
+        if quality != 1:
+            value = f'{language};q={quality}'
+        result.append(value)
+    return ','.join(result)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/_json.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/_json.py      Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,107 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import base64
+import datetime as dt
+import json
+from decimal import Decimal
+
+
+class JSONDecoder(object):
+
+    decoders = {}
+
+    @classmethod
+    def register(cls, klass, decoder):
+        assert klass not in cls.decoders
+        cls.decoders[klass] = decoder
+
+    def __call__(self, dct):
+        if dct.get('__class__') in self.decoders:
+            return self.decoders[dct['__class__']](dct)
+        return dct
+
+
+JSONDecoder.register('datetime',
+    lambda dct: dt.datetime(dct['year'], dct['month'], dct['day'],
+        dct['hour'], dct['minute'], dct['second'], dct['microsecond']))
+JSONDecoder.register('date',
+    lambda dct: dt.date(dct['year'], dct['month'], dct['day']))
+JSONDecoder.register('time',
+    lambda dct: dt.time(dct['hour'], dct['minute'], dct['second'],
+        dct['microsecond']))
+JSONDecoder.register('timedelta',
+    lambda dct: dt.timedelta(seconds=dct['seconds']))
+
+
+def _bytes_decoder(dct):
+    cast = bytearray if bytes == str else bytes
+    return cast(base64.decodebytes(dct['base64'].encode('utf-8')))
+
+
+JSONDecoder.register('bytes', _bytes_decoder)
+JSONDecoder.register('Decimal', lambda dct: Decimal(dct['decimal']))
+
+
+class JSONEncoder(json.JSONEncoder):
+
+    serializers = {}
+
+    @classmethod
+    def register(cls, klass, encoder):
+        assert klass not in cls.serializers
+        cls.serializers[klass] = encoder
+
+    def default(self, obj):
+        marshaller = self.serializers.get(type(obj),
+            super(JSONEncoder, self).default)
+        return marshaller(obj)
+
+
+JSONEncoder.register(dt.datetime,
+    lambda o: {
+        '__class__': 'datetime',
+        'year': o.year,
+        'month': o.month,
+        'day': o.day,
+        'hour': o.hour,
+        'minute': o.minute,
+        'second': o.second,
+        'microsecond': o.microsecond,
+        })
+JSONEncoder.register(dt.date,
+    lambda o: {
+        '__class__': 'date',
+        'year': o.year,
+        'month': o.month,
+        'day': o.day,
+        })
+JSONEncoder.register(dt.time,
+    lambda o: {
+        '__class__': 'time',
+        'hour': o.hour,
+        'minute': o.minute,
+        'second': o.second,
+        'microsecond': o.microsecond,
+        })
+JSONEncoder.register(dt.timedelta,
+    lambda o: {
+        '__class__': 'timedelta',
+        'seconds': o.total_seconds(),
+        })
+
+
+def _bytes_encoder(o):
+    return {
+        '__class__': 'bytes',
+        'base64': base64.encodebytes(o).decode('utf-8'),
+        }
+
+
+JSONEncoder.register(bytes, _bytes_encoder)
+JSONEncoder.register(bytearray, _bytes_encoder)
+JSONEncoder.register(Decimal,
+    lambda o: {
+        '__class__': 'Decimal',
+        'decimal': str(o),
+        })
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/__init__.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/__init__.py     Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,2 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/common.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/common.py       Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,45 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from urllib.parse import urljoin
+
+import respx
+
+from naiad import Client
+from trytond.pool import Pool
+from trytond.tests.test_tryton import RouteTestCase, app
+
+__all__ = ['NaiadTestCase', 'app']
+
+
+class NaiadTestCase(RouteTestCase):
+    module = 'res'
+    base_url = 'http://localhost:8000'
+
+    @classmethod
+    def setUpDatabase(cls):
+        pool = Pool()
+        User = pool.get('res.user')
+        UserApplication = pool.get('res.user.application')
+        admin, = User.search([('login', '=', 'admin')])
+        admin.email = '[email protected]'
+        admin.save()
+        application = UserApplication(user=admin, application='rest')
+        application.save()
+        cls.key = application.key
+
+    @property
+    def url(self):
+        return urljoin(self.base_url, self.db_name)
+
+    def setUp(self):
+        super().setUp()
+        self.respx_mock = respx.mock(base_url=self.base_url)
+        self.respx_mock.start()
+        self.respx_mock.route().mock(side_effect=respx.WSGIHandler(app))
+        self.addCleanup(self.respx_mock.stop)
+
+    def client(self, usages=None, context=None, languages=None):
+        return Client(
+            self.url, self.key,
+            usages=usages, context=context, languages=languages)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_action.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_action.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,41 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from unittest.mock import patch
+
+from naiad import Record
+
+from .common import NaiadTestCase
+
+
+class ActionTestCase(NaiadTestCase):
+
+    def setUp(self):
+        super().setUp()
+        patcher = patch('trytond.res.user._send_email')
+        patcher.start()
+        self.addCleanup(patcher.stop)
+
+    def test_action(self):
+        "Test action"
+        preferences = self.client().action('res.user', 'get_preferences')
+
+        self.assertIsInstance(preferences, dict)
+
+    def test_action_record(self):
+        "Test action on record"
+        record = Record('res.user', id=1)
+        record = self.client().action(
+            record, 'reset_password', fields=['password_reset'])
+
+        self.assertIsNotNone(record.password_reset)
+
+    def test_action_arguments(self):
+        "Test action with arguments"
+        record = self.client().action(
+            'res.user', 'reset_password', id=1, fields=['password_reset'],
+            kwargs={
+                'length': 12,
+                })
+
+        self.assertEqual(len(record.password_reset), 12)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_create.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_create.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,26 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from .common import NaiadTestCase
+
+
+class CreateTestCase(NaiadTestCase):
+
+    def test_create(self):
+        "Test create"
+        record = self.client().create('res.group', {
+                'name': "Test",
+                })
+
+        self.assertEqual(record._model, 'res.group')
+        self.assertGreaterEqual(record.id, 0)
+
+    def test_create_fields(self):
+        "Test create with fields"
+        record = self.client().create('res.group', {
+                'name': "Test w/ fields",
+                }, fields=['name'])
+
+        self.assertEqual(record._model, 'res.group')
+        self.assertEqual(record.name, "Test w/ fields")
+        self.assertGreaterEqual(record.id, 0)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_delete.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_delete.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,23 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from naiad import Record
+from trytond.pool import Pool
+
+from .common import NaiadTestCase
+
+
+class DeleteTestCase(NaiadTestCase):
+
+    @classmethod
+    def setUpDatabase(cls):
+        pool = Pool()
+        Group = pool.get('res.group')
+        super().setUpDatabase()
+        group = Group(name="Group to delete")
+        group.save()
+        cls.group_id = group.id
+
+    def test_delete(self):
+        record = Record('res.group', id=self.group_id)
+        self.client().delete(record)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_get.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_get.py     Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,22 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from naiad import Record
+
+from .common import NaiadTestCase
+
+
+class GetTestCase(NaiadTestCase):
+
+    def test_get(self):
+        "Test get"
+        record = self.client().get('res.user', 1)
+
+        self.assertEqual(record, Record('res.user', id=1))
+
+    def test_get_fields(self):
+        "Test get fields"
+        record = self.client().get('res.user', 1, fields=['name'])
+
+        self.assertEqual(
+            record, Record('res.user', id=1, name="Administrator"))
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_headers.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_headers.py Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,48 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from unittest import TestCase
+from unittest.mock import patch
+
+from naiad import Client, __version__, _format_accept_language
+
+
+class HeadersTestCase(TestCase):
+
+    def test_format_accept_language(self):
+        "Test format accept language"
+        languages = ['fr', ('en', .5)]
+
+        header = _format_accept_language(languages)
+
+        self.assertEqual(header, 'fr,en;q=0.5')
+
+    @patch('httpx.Client')
+    def test_context_header(self, httpx_client):
+        "Test context header"
+        Client('http://localhost/', 'secret', context={'foo': 'bar'})
+
+        self.assertEqual(httpx_client.call_args.kwargs['headers'], {
+                'User-Agent': f'naiad/{__version__}',
+                'X-Tryton-Context': 'eyJmb28iOiJiYXIifQ==',
+                })
+
+    @patch('httpx.Client')
+    def test_language_header(self, httpx_client):
+        "Test language header"
+        Client('http://localhost/', 'secret', languages=['fr', ('en', .5)])
+
+        self.assertEqual(httpx_client.call_args.kwargs['headers'], {
+                'User-Agent': f'naiad/{__version__}',
+                'Accept-Language': 'fr,en;q=0.5',
+                })
+
+    @patch('httpx.Client')
+    def test_usage_header(self, httpx_client):
+        "Test usage header"
+        Client('http://localhost/', 'secret', usages=['foo', 'bar'])
+
+        self.assertEqual(httpx_client.call_args.kwargs['headers'], {
+                'User-Agent': f'naiad/{__version__}',
+                'X-Tryton-Usage': 'foo,bar',
+                })
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_readme.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_readme.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,41 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+import doctest
+import os
+from unittest.mock import patch
+
+import respx
+
+from trytond.tests.test_tryton import DB_NAME, app
+
+from .common import NaiadTestCase
+
+here = os.path.dirname(__file__)
+readme = os.path.normpath(os.path.join(here, '..', '..', 'README.rst'))
+respx_mock = respx.mock(base_url=NaiadTestCase.base_url)
+patcher = patch('trytond.res.user._send_email')
+
+
+def doctest_setup(test):
+    NaiadTestCase.setUpClass()
+    os.environ['NAIAD_KEY'] = NaiadTestCase.key
+    os.environ['NAIAD_URL'] = f'{NaiadTestCase.base_url}/{DB_NAME}'
+    respx_mock.start()
+    respx_mock.route().mock(side_effect=respx.WSGIHandler(app))
+    patcher.start()
+
+
+def doctest_teardown(test):
+    patcher.stop()
+    respx_mock.stop()
+    NaiadTestCase.tearDownClass()
+
+
+def load_tests(loader, tests, pattern):
+    if os.path.isfile(readme):
+        tests.addTest(doctest.DocFileSuite(
+                readme, module_relative=False,
+                setUp=doctest_setup, tearDown=doctest_teardown,
+                encoding='utf-8',
+                optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
+    return tests
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_record.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_record.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,189 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from unittest import TestCase
+
+from naiad import Record, set_delete, set_remove
+
+
+class RecordTestCase(TestCase):
+
+    def test_repr(self):
+        "Test repr"
+        string = repr(Record('res.user', id=42))
+
+        self.assertEqual(string, "Record('res.user', id=42)")
+
+    def test_contains(self):
+        "Test contains"
+        record = Record('res.user', login='foo')
+        self.assertIn('login', record)
+
+    def test_int(self):
+        "Test int"
+        record = Record('res.user', id=42)
+        self.assertEqual(int(record), 42)
+
+    def test_int_no_id(self):
+        "Test int without id"
+        record = Record('res.user')
+        with self.assertRaises(TypeError):
+            int(record)
+
+    def test_str(self):
+        "Test str"
+        record = Record('res.user', id=42)
+        self.assertEqual(str(record), '42')
+
+    def test_str_no_id(self):
+        "Test str without id"
+        record = Record('res.user')
+        self.assertEqual(str(record), '')
+
+    def test_str_rec_name(self):
+        "Test str with rec_name"
+        record = Record('res.user', id=42, rec_name="Foo")
+        self.assertEqual(str(record), "Foo")
+
+    def test_equality(self):
+        "Test equality"
+        record1 = Record('res.user', id=42, login='foo')
+        record2 = Record('res.user', id=42, name='bar')
+
+        self.assertEqual(record1, record2)
+        self.assertEqual(record1, 42)
+
+    def test_inequality(self):
+        "Test inequality"
+        record1 = Record('res.user', id=42)
+        record2 = Record('res.user', id=1)
+        record3 = Record('res.group', id=42)
+
+        self.assertNotEqual(record1, record2)
+        self.assertNotEqual(record1, record3)
+
+    def test_order(self):
+        "Test order"
+        record1 = Record('res.user', id=1)
+        record2 = Record('res.user', id=2)
+
+        self.assertLess(record1, record2)
+
+    def test_hashable(self):
+        "Test hashable"
+        record = Record('res.user', id=42)
+
+        self.assertIn(record, {record: None})
+
+    def test_boolean(self):
+        "Test boolean"
+        self.assertTrue(Record('res.user'))
+
+    def test_to_dict(self):
+        "Test to dict"
+        record = Record(
+            'res.user', id=1,
+            name="User",
+            groups=[{'__name__': 'res.group', 'id': 2, 'name': "Group"}])
+
+        self.assertDictEqual(record.to_dict(), {
+                '__name__': 'res.user',
+                'id': 1,
+                'name': "User",
+                'groups': [{
+                        '__name__': 'res.group',
+                        'id': 2,
+                        'name': "Group",
+                        }],
+                })
+
+    def test_to_dict_instance(self):
+        "Test to dict with instance"
+        record = Record('res.user', id=1)
+        record.groups = [Record('res.group', id=2)]
+
+        self.assertDictEqual(record.to_dict(), {
+                '__name__': 'res.user',
+                'id': 1,
+                'groups': [{
+                        '__name__': 'res.group',
+                        'id': 2,
+                        }],
+                })
+
+    def test_to_values(self):
+        "Test to values"
+        record = Record('res.user', id=1)
+        record.name = "Name"
+
+        self.assertDictEqual(record.to_values(), {
+                'name': "Name",
+                })
+
+    def test_to_values_not_modified(self):
+        "Test to values not modified"
+        record = Record('res.user', id=1, name="Name")
+        record.name = "Name"
+
+        self.assertDictEqual(record.to_values(), {})
+
+    def test_to_values_list_create(self):
+        "Test to values with list to create"
+        record = Record('res.user', id=1)
+        record.groups = [Record('res.group', name="Group")]
+
+        self.assertDictEqual(record.to_values(), {
+                'groups': [('create', [{'name': "Group"}])],
+                })
+
+    def test_to_values_list_add(self):
+        "Test to values with list to add"
+        record = Record('res.user', id=1)
+        record.groups = [Record('res.group', id=2)]
+
+        self.assertDictEqual(record.to_values(), {
+                'groups': [('add', [2])],
+                })
+
+    def test_to_values_list_add_write(self):
+        "Test to values with list to add and write"
+        record = Record('res.user', id=1)
+        record2 = Record('res.group', id=2)
+        record.groups = [record2]
+        record2.name = "Group"
+
+        self.assertDictEqual(record.to_values(), {
+                'groups': [('add', [2]), ('write', [2], {'name': "Group"})],
+                })
+
+    def test_to_values_list_write(self):
+        "Test to values with list to write"
+        record = Record(
+            'res.user', id=1, groups=[{'__name__': 'res.group', 'id': 2}])
+        record.groups[0].name = "Group"
+
+        self.assertDictEqual(record.to_values(), {
+                'groups': [('write', [2], {'name': "Group"})],
+                })
+
+    def test_to_values_list_delete(self):
+        "Test to values with list to delete"
+        record = Record(
+            'res.user', id=1, groups=[{'__name__': 'res.group', 'id': 2}])
+        record.groups = ()
+
+        with set_delete('res.user', 'groups'):
+            self.assertDictEqual(record.to_values(), {
+                    'groups': [('delete', [2])],
+                    })
+
+    def test_to_values_list_remove(self):
+        "Test to values with list to remove"
+        record = Record(
+            'res.user', id=1, groups=[{'__name__': 'res.group', 'id': 2}])
+        record.groups = ()
+
+        with set_remove('res.user', 'groups'):
+            self.assertDictEqual(record.to_values(), {
+                    'groups': [('remove', [2])],
+                    })
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_report.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_report.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,26 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from unittest.mock import patch
+
+from .common import NaiadTestCase
+
+
+class ActionTestCase(NaiadTestCase):
+
+    def setUp(self):
+        super().setUp()
+        patcher = patch('trytond.res.user._send_email')
+        patcher.start()
+        self.addCleanup(patcher.stop)
+
+    def test_report(self):
+        "Test report"
+        c = self.client()
+
+        c.action('res.user', 'reset_password', 1)
+        filename, content = c.report(
+            'res.user.email_reset_password', 1)
+
+        self.assertRegex(filename, r'.*\.html')
+        self.assertIsInstance(content, bytes)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_search.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_search.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,66 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from operator import attrgetter
+
+from naiad import Record
+
+from .common import NaiadTestCase
+
+
+class SearchTestCase(NaiadTestCase):
+
+    def test_search(self):
+        "Test search"
+        records = self.client().search('res.user')
+        self.assertEqual(records, [Record('res.user', id=1)])
+
+    def test_search_domain(self):
+        "Test search with domain"
+        record, = self.client().search(
+            'res.user', domain=[('login', '=', 'admin')], fields=['login'])
+        self.assertEqual(record.login, 'admin')
+
+    def test_search_order(self):
+        "Test search with order"
+        records = self.client().search(
+            'res.user',
+            domain=[('active', 'in', [True, False])],
+            order=[('login', 'DESC')],
+            fields=['login'])
+        self.assertEqual(
+            records, sorted(records, key=attrgetter('login'), reverse=True))
+
+    def test_search_range(self):
+        "Test search with range"
+        all_records = self.client().search('ir.model')
+        (start, end, size), records = self.client().search(
+            'ir.model', range_=(5, 10))
+
+        self.assertEqual(start, 5)
+        self.assertEqual(end, 10)
+        self.assertEqual(size, len(all_records))
+        self.assertEqual(len(records), 5)
+        self.assertEqual(records, all_records[5:10])
+
+    def test_search_limit(self):
+        "Test search with limit"
+        all_records = self.client().search('ir.model')
+        records = self.client().search('ir.model', limit=5)
+
+        self.assertEqual(len(records), 5)
+        self.assertEqual(records, all_records[:5])
+
+    def test_search_offset(self):
+        "Test search with offset"
+        all_records = self.client().search('ir.model')
+        records = self.client().search('ir.model', offset=5)
+
+        self.assertEqual(records, all_records[5:])
+
+    def test_search_fields(self):
+        "Test search with fields"
+        record, = self.client().search(
+            'res.user', domain=[('login', '=', 'admin')], fields=['name'])
+
+        self.assertEqual(record.name, "Administrator")
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_store.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_store.py   Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,28 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from naiad import Record
+
+from .common import NaiadTestCase
+
+
+class StoreTestCase(NaiadTestCase):
+
+    def test_store_create(self):
+        "Test store with creation"
+        record = Record('res.group', name="Test store")
+        record = self.client().store(record, fields=['name'])
+
+        self.assertEqual(record._model, 'res.group')
+        self.assertEqual(record.name, "Test store")
+        self.assertGreaterEqual(record.id, 0)
+
+    def test_store_update(self):
+        "Test store with creation"
+        record = Record('res.user', id=1)
+        record.signature = "Admin"
+        record = self.client().store(record, fields=['signature'])
+
+        self.assertEqual(record._model, 'res.user')
+        self.assertEqual(record.signature, "Admin")
+        self.assertEqual(record.id, 1)
diff -r 44edc21632c6 -r 8a8178270374 naiad/naiad/tests/test_update.py
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/naiad/tests/test_update.py  Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,26 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+from .common import NaiadTestCase
+
+
+class UpdateTestCase(NaiadTestCase):
+
+    def test_update(self):
+        "Test update"
+        record = self.client().update('res.user', 1, {
+                'signature': "Admin",
+                })
+
+        self.assertEqual(record._model, 'res.user')
+        self.assertGreaterEqual(record.id, 0)
+
+    def test_update_fields(self):
+        "Test update with fields"
+        record = self.client().update('res.user', 1, {
+                'signature': "Admin",
+                }, fields=['signature'])
+
+        self.assertEqual(record._model, 'res.user')
+        self.assertEqual(record.signature, "Admin")
+        self.assertGreaterEqual(record.id, 0)
diff -r 44edc21632c6 -r 8a8178270374 naiad/pyproject.toml
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/pyproject.toml      Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,51 @@
+[build-system]
+requires = ['hatchling >= 1', 'hatch-tryton']
+build-backend = 'hatchling.build'
+
+[project]
+name = 'naiad'
+dynamic = ['version', 'dependencies', 'optional-dependencies', 'authors', 
'readme']
+requires-python = '>=3.10'
+maintainers = [
+    {name = "Tryton", email = "[email protected]"},
+    ]
+description = "Library to access Tryton's REST API"
+license = 'LGPL-3.0-or-later'
+license-files = ['LICENSE', 'COPYRIGHT']
+keywords = ["tryton", "cli", "REST"]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Plugins",
+    "Framework :: Tryton",
+    "Intended Audience :: Developers",
+    "Topic :: Office/Business",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    ]
+
+[project.urls]
+homepage = "https://www.tryton.org/";
+documentation = "https://docs.tryton.org/client-rest/";
+changelog = "https://docs.tryton.org/client-library/releases.html";
+forum = "https://discuss.tryton.org/tags/naiad";
+issues = "https://bugs.tryton.org/tryton";
+repository = "https://code.tryton.org/tryton";
+funding = "https://www.tryton.org/donate";
+
+[tool.hatch.version]
+path = 'naiad/__init__.py'
+
+[tool.hatch.build]
+packages = ['naiad']
+
+[tool.hatch.metadata.hooks.tryton]
+dependencies = [
+    'httpx',
+    ]
+copyright = 'COPYRIGHT'
+readme = 'README.rst'
+
+[tool.hatch.metadata.hooks.tryton.optional-dependencies]
+test = ['respx']
+
+[tool.hatch.metadata.hooks.tryton.tryton-optional-dependencies]
+test = ['trytond']
diff -r 44edc21632c6 -r 8a8178270374 naiad/tox.ini
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/naiad/tox.ini     Tue Apr 07 17:40:41 2026 +0200
@@ -0,0 +1,21 @@
+[tox]
+envlist = py310,py311,py312,py313,py314
+
+[testenv]
+changedir = {env_site_packages_dir}
+extras = test
+commands =
+    coverage run --rcfile={toxinidir}/tox.ini --source=naiad --omit=*/tests/* 
-m xmlrunner discover -s naiad.tests {posargs}
+commands_post =
+    coverage report --rcfile={toxinidir}/tox.ini
+    coverage xml --rcfile={toxinidir}/tox.ini -o {package_root}/coverage.xml
+deps =
+    coverage
+    unittest-xml-reporting
+passenv = *
+setenv =
+    TRYTOND_DATABASE_URI={env:TRYTOND_DATBASE_URI:sqlite://}
+    DB_NAME={env:DB_NAME::memory:}
+
+[coverage:run]
+relative_files = true
diff -r 44edc21632c6 -r 8a8178270374 trytond/trytond/protocols/wrappers.py
--- a/trytond/trytond/protocols/wrappers.py     Sat Apr 04 23:03:18 2026 +0200
+++ b/trytond/trytond/protocols/wrappers.py     Tue Apr 07 17:40:41 2026 +0200
@@ -412,7 +412,7 @@
                 try:
                     response = func(request, *args, **kwargs)
                 except (UserError, UserWarning) as e:
-                    response = JSONBadRequest(e)
+                    raise JSONBadRequest(e)
             if not isinstance(response, Response) and json:
                 response = Response(json_.dumps(response, cls=JSONEncoder),
                     content_type='application/json')

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