membphis commented on code in PR #12036: URL: https://github.com/apache/apisix/pull/12036#discussion_r2007132012
########## apisix/plugins/ai-request-rewrite.lua: ########## @@ -0,0 +1,217 @@ +-- +-- Licensed to the Apache Software Foundation (ASF) under one or more +-- contributor license agreements. See the NOTICE file distributed with +-- this work for additional information regarding copyright ownership. +-- The ASF licenses this file to You under the Apache License, Version 2.0 +-- (the "License"); you may not use this file except in compliance with +-- the License. You may obtain a copy of the License at +-- +-- http://www.apache.org/licenses/LICENSE-2.0 +-- +-- Unless required by applicable law or agreed to in writing, software +-- distributed under the License is distributed on an "AS IS" BASIS, +-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +-- See the License for the specific language governing permissions and +-- limitations under the License. +-- +local core = require("apisix.core") +local require = require +local ngx = ngx +local req_set_body_data = ngx.req.set_body_data +local HTTP_BAD_REQUEST = ngx.HTTP_BAD_REQUEST +local HTTP_INTERNAL_SERVER_ERROR = ngx.HTTP_INTERNAL_SERVER_ERROR + +local plugin_name = "ai-request-rewrite" + +local auth_item_schema = { + type = "object", + patternProperties = { + ["^[a-zA-Z0-9._-]+$"] = { + type = "string" + } + } +} + +local auth_schema = { + type = "object", + properties = { + header = auth_item_schema, + query = auth_item_schema + }, + additionalProperties = false +} + +local model_options_schema = { + description = "Key/value settings for the model", + type = "object", + properties = { + model = { + type = "string", + description = "Model to execute. Examples: \"gpt-3.5-turbo\" for openai, " .. + "\"deepseek-chat\" for deekseek, or \"qwen-turbo\" for openai-compatible services" + } + }, + additionalProperties = true +} + +local schema = { + type = "object", + properties = { + prompt = { + type = "string", + description = "The prompt to rewrite client request." + }, + provider = { + type = "string", + description = "Name of the AI service provider.", + enum = {"openai", "openai-compatible", "deepseek"} -- add more providers later + }, + auth = auth_schema, + options = model_options_schema, + timeout = { + type = "integer", + minimum = 1, + maximum = 60000, + default = 30000, + description = "Total timeout in milliseconds for requests to LLM service, " .. + "including connect, send, and read timeouts." + }, + keepalive = { + type = "boolean", + default = true + }, + keepalive_pool = { + type = "integer", + minimum = 1, + default = 30 + }, + ssl_verify = { + type = "boolean", + default = true + }, + override = { + type = "object", + properties = { + endpoint = { + type = "string", + description = "To be specified to override " .. + "the endpoint of the AI service provider." + } + } + } + }, + required = {"prompt", "provider", "auth"} +} + +local _M = { + version = 0.1, + priority = 1073, + name = plugin_name, + schema = schema +} + +local function request_to_llm(conf, request_table, ctx) + local ai_driver = require("apisix.plugins.ai-drivers." .. conf.provider) + + local extra_opts = { + endpoint = core.table.try_read_attr(conf, "override", "endpoint"), + query_params = conf.auth.query or {}, + headers = (conf.auth.header or {}), + model_options = conf.options + } + + local res, err, httpc = ai_driver:request(conf, request_table, extra_opts) + if err then + return nil, nil, err + end + + local resp_body, err = res:read_body() + httpc:close() + if err then + return nil, nil, err + end + + return res, resp_body +end + + +local function parse_llm_response(res_body) + local response_table, err = core.json.decode(res_body) + + if err then + return nil, "failed to decode llm response " .. ", err: " .. err + end + + if not response_table.choices or not response_table.choices[1] then + return nil, "'choices' not in llm response" + end + + local message = response_table.choices[1].message + if not message then + return nil, "'message' not in llm response choices" + end + + return message.content +end + + +function _M.check_schema(conf) + -- openai-compatible should be used with override.endpoint + if conf.provider == "openai-compatible" then + local override = conf.override + + if not override or not override.endpoint then + return false, "override.endpoint is required for openai-compatible provider" + end + end + + return core.schema.check(schema, conf) +end + + +function _M.access(conf, ctx) + local client_request_body, err = core.request.get_body() + if err then + core.log.info("failed to get request body: ", err) + return HTTP_BAD_REQUEST, err Review Comment: should remove `err` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@apisix.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
