It seems like I'm so close but then have more issues. This time it's
with the quotes being escaped before sending the request.
if you try the above example with RestClient but instead create the
payload using hashes converted to json it get some weird errors. For
example:
param = {}
param['a'] = 'b'
payload = {}
payload['pdef_url'] = "public/defs/sequence1.rb"
payload['fields'] = param.to_json
#then
p RestClient.post(
'http://admin:ad...@localhost:3000/processes',
payload.to_json,
:content_type => 'application/json',
:accept => 'application/json')
produces
Processing ProcessesController#create (for 127.0.0.1 at 2009-03-09
17:56:02) [POST]
Parameters: {"fields"=>"{\"a\":\"b\"}", "pdef_url"=>"public/defs/
sequence1.rb"}
User Load (1.1ms) SELECT * FROM "users" WHERE ("users"."login" =
E'admin') LIMIT 1
SQL (0.2ms) SET client_min_messages TO 'panic'
SQL (0.1ms) SET client_min_messages TO 'notice'
SQL (0.1ms) BEGIN
SQL (2.1ms) INSERT INTO "history" ("created_at", "participant",
"wfid", "wfrevision", "event", "wfname", "source", "message", "fei")
VALUES('2009-03-10 00:56:02.911400', NULL, E'20090310-bekobiyudo',
E'1', E'launch', E'Sequence', E'expool', E'', E'(fei 0.9.20 engine
public/defs/sequence1.rb Sequence 1 20090310-bekobiyudo process-
definition 0)') RETURNING "id"
SQL (25.8ms) COMMIT
SQL (0.2ms) BEGIN
SQL (0.9ms) INSERT INTO "process_errors" ("created_at", "wfid",
"expid", "svalue") VALUES('2009-03-10 00:56:03.032256', E'20090310-
bekobiyudo', E'0.0', E'--- !ruby/object:OpenWFE::ProcessError
date: 2009-03-09 17:56:03.032256 -07:00
error_class: IndexError
fei: &id001 !ruby/OpenWFE::FlowExpressionId
s: (fei 0.9.20 engine public/defs/sequence1.rb Sequence 1 20090310-
bekobiyudo description 0.0)
message: :apply
stacktrace: string not matched
workitem: !ruby/object:OpenWFE::InFlowWorkItem
attributes: "{\\"a\\":\\"b\\"}"
flow_expression_id: *id001
last_modified:
') RETURNING "id"
SQL (298.3ms) COMMIT
SQL (0.3ms) BEGIN
SQL (0.6ms) INSERT INTO "history" ("created_at", "participant",
"wfid", "wfrevision", "event", "wfname", "source", "message", "fei")
VALUES('2009-03-10 00:56:03.377025', NULL, E'20090310-bekobiyudo',
E'1', E'error', E'Sequence', E'expool', E'apply IndexError string not
matched', E'(fei 0.9.20 engine public/defs/sequence1.rb Sequence 1
20090310-bekobiyudo description 0.0)') RETURNING "id"
SQL (0.6ms) COMMIT
I noticed that the difference between the hash built payload and the
hardcoded one was the Parameters
hardcoded:
Parameters: {"fields"=>{"a":"b"}, "pdef_url"=>"public/defs/
sequence1.rb"}
hash:
Parameters: {"fields"=>"{\"a\":\"b\"}", "pdef_url"=>"public/defs/
sequence1.rb"}
When entered via the hash the fields value is escaped and surrounded
by quotes. I thought okay easy fix remove the escape characters
before posting with the RestClient. Well I can't figure out how to
remove the escape characters because they show up in every .to_s I do,
but then at runtime when I try a gsub it never finds the escape
character. When I'm in irb though I can see that the escape character
doesn't exist viewing the individual characters, it's just when the
String is printed the escape characters are put in. I'm wondering
also if the escape characters are still valid and the workflow engine
is not processing it correctly.
Sorry if confusing I'm going to play around with it alittle more,
can't believe how difficult these escape characters have turned out to
be, I'm also fairly new to ruby so I'll search around and see if
anyone else has similar issues when trying to print strings or json
output.
On Mar 2, 5:54 pm, John Mettraux <[email protected]> wrote:
> On Mon, Mar 2, 2009 at 6:50 PM, John Mettraux <[email protected]> wrote:
> > On Mon, Mar 2, 2009 at 5:26 PM, kiko <[email protected]> wrote:
>
> >> the form-cli was a hack because the ruote-rest was failing if it was
> >> other types of content-types so I needed to put some random content-
> >> type, and the blank pdef argument was required for some reason I never
> >> figured out.
>
> >> I made an attempt to launch the process as an httparty client. Also I
> >> don't get much of what you mean about your last response, it seems
> >> your recommending using OpenWFE objects to create the xml or json text
> >> on the client and send to the server? My understanding is if you post
> >> to http:<ruote-web2 server>/processes with parameter pdef_url to the
> >> process file and parameter fields with a json representation of the
> >> payload. My issue is getting the authentication to work.
>
> > Hello Francisco,
>
> > I couldn't get Httparty to run with "application/json" for now. But
> > this shell script works fine :
>
> > ---8<---
> > curl \
> > --verbose \
> > --basic --user "admin:admin" \
> > -H "Content-Type: application/json" \
> > -H "Accept: application/json" \
> > --data '{"pdef_url":"public/defs/sequence1.rb", "fields":{"a":"b"}}' \
> > http://localhost:3000/processes
> > --->8---
>
> And the "sudo gem install rest-client" equivalent :
>
> ---8<---
> require 'rubygems'
> require 'rest_client'
>
> p RestClient.post(
> 'http://admin:ad...@localhost:3000/processes',
> '{"pdef_url":"public/defs/sequence1.rb", "fields":{"a":"b"}}',
> :content_type => 'application/json',
> :accept => 'application/json')
> --->8---
>
> Sorry for having wasted your time with httparty.
>
> Best regards,
>
> --
> John Mettraux - http://jmettraux.wordpress.com
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