Files
avante.nvim/lua/avante/providers/openai.lua
2025-11-28 20:03:58 +08:00

843 lines
31 KiB
Lua

local Utils = require("avante.utils")
local Config = require("avante.config")
local Clipboard = require("avante.clipboard")
local Providers = require("avante.providers")
local HistoryMessage = require("avante.history.message")
local ReActParser = require("avante.libs.ReAct_parser2")
local JsonParser = require("avante.libs.jsonparser")
local Prompts = require("avante.utils.prompts")
local LlmTools = require("avante.llm_tools")
---@class AvanteProviderFunctor
local M = {}
M.api_key_name = "OPENAI_API_KEY"
M.role_map = {
user = "user",
assistant = "assistant",
}
function M:is_disable_stream() return false end
---@param tool AvanteLLMTool
---@return AvanteOpenAITool
function M:transform_tool(tool)
local input_schema_properties, required = Utils.llm_tool_param_fields_to_json_schema(tool.param.fields)
---@type AvanteOpenAIToolFunctionParameters
local parameters = {
type = "object",
properties = input_schema_properties,
required = required,
additionalProperties = false,
}
---@type AvanteOpenAITool
local res = {
type = "function",
["function"] = {
name = tool.name,
description = tool.get_description and tool.get_description() or tool.description,
parameters = parameters,
},
}
return res
end
function M.is_openrouter(url) return url:match("^https://openrouter%.ai/") end
function M.is_mistral(url) return url:match("^https://api%.mistral%.ai/") end
---@param opts AvantePromptOptions
function M.get_user_message(opts)
vim.deprecate("get_user_message", "parse_messages", "0.1.0", "avante.nvim")
return table.concat(
vim
.iter(opts.messages)
:filter(function(_, value) return value == nil or value.role ~= "user" end)
:fold({}, function(acc, value)
acc = vim.list_extend({}, acc)
acc = vim.list_extend(acc, { value.content })
return acc
end),
"\n"
)
end
function M.is_reasoning_model(model)
return model
and (string.match(model, "^o%d+") ~= nil or (string.match(model, "gpt%-5") ~= nil and model ~= "gpt-5-chat"))
end
function M.set_allowed_params(provider_conf, request_body)
local use_response_api = Providers.resolve_use_response_api(provider_conf, nil)
if M.is_reasoning_model(provider_conf.model) then
-- Reasoning models have specific parameter requirements
request_body.temperature = 1
-- Response API doesn't support temperature for reasoning models
if use_response_api then request_body.temperature = nil end
else
request_body.reasoning_effort = nil
request_body.reasoning = nil
end
-- If max_tokens is set in config, unset max_completion_tokens
if request_body.max_tokens then request_body.max_completion_tokens = nil end
-- Handle Response API specific parameters
if use_response_api then
-- Convert reasoning_effort to reasoning object for Response API
if request_body.reasoning_effort then
request_body.reasoning = {
effort = request_body.reasoning_effort,
}
request_body.reasoning_effort = nil
end
-- Response API doesn't support some parameters
-- Remove unsupported parameters for Response API
local unsupported_params = {
"top_p",
"frequency_penalty",
"presence_penalty",
"logit_bias",
"logprobs",
"top_logprobs",
"n",
}
for _, param in ipairs(unsupported_params) do
request_body[param] = nil
end
end
end
function M:parse_messages(opts)
local messages = {}
local provider_conf, _ = Providers.parse_config(self)
local use_response_api = Providers.resolve_use_response_api(provider_conf, opts)
local use_ReAct_prompt = provider_conf.use_ReAct_prompt == true
local system_prompt = opts.system_prompt
if use_ReAct_prompt then system_prompt = Prompts.get_ReAct_system_prompt(provider_conf, opts) end
if self.is_reasoning_model(provider_conf.model) then
table.insert(messages, { role = "developer", content = system_prompt })
else
table.insert(messages, { role = "system", content = system_prompt })
end
local has_tool_use = false
vim.iter(opts.messages):each(function(msg)
if type(msg.content) == "string" then
table.insert(messages, { role = self.role_map[msg.role], content = msg.content })
elseif type(msg.content) == "table" then
-- Check if this is a reasoning message (object with type "reasoning")
if msg.content.type == "reasoning" then
-- Add reasoning message directly (for Response API)
table.insert(messages, {
type = "reasoning",
id = msg.content.id,
encrypted_content = msg.content.encrypted_content,
summary = msg.content.summary,
})
return
end
local content = {}
local tool_calls = {}
local tool_results = {}
for _, item in ipairs(msg.content) do
if type(item) == "string" then
table.insert(content, { type = "text", text = item })
elseif item.type == "text" then
table.insert(content, { type = "text", text = item.text })
elseif item.type == "image" then
table.insert(content, {
type = "image_url",
image_url = {
url = "data:" .. item.source.media_type .. ";" .. item.source.type .. "," .. item.source.data,
},
})
elseif item.type == "reasoning" then
-- Add reasoning message directly (for Response API)
table.insert(messages, {
type = "reasoning",
id = item.id,
encrypted_content = item.encrypted_content,
summary = item.summary,
})
elseif item.type == "tool_use" and not use_ReAct_prompt then
has_tool_use = true
table.insert(tool_calls, {
id = item.id,
type = "function",
["function"] = { name = item.name, arguments = vim.json.encode(item.input) },
})
elseif item.type == "tool_result" and has_tool_use and not use_ReAct_prompt then
table.insert(
tool_results,
{ tool_call_id = item.tool_use_id, content = item.is_error and "Error: " .. item.content or item.content }
)
end
end
if not provider_conf.disable_tools and use_ReAct_prompt then
if msg.content[1].type == "tool_result" then
local tool_use_msg = nil
for _, msg_ in ipairs(opts.messages) do
if type(msg_.content) == "table" and #msg_.content > 0 then
if msg_.content[1].type == "tool_use" and msg_.content[1].id == msg.content[1].tool_use_id then
tool_use_msg = msg_
break
end
end
end
if tool_use_msg then
msg.role = "user"
table.insert(content, {
type = "text",
text = "The result of tool use " .. Utils.tool_use_to_xml(tool_use_msg.content[1]) .. " is:\n",
})
table.insert(content, {
type = "text",
text = msg.content[1].content,
})
end
end
end
if #content > 0 then table.insert(messages, { role = self.role_map[msg.role], content = content }) end
if not provider_conf.disable_tools and not use_ReAct_prompt then
if #tool_calls > 0 then
-- Only skip tool_calls if using Response API with previous_response_id support
-- Copilot uses Response API format but doesn't support previous_response_id
local should_include_tool_calls = not use_response_api or not provider_conf.support_previous_response_id
if should_include_tool_calls then
-- For Response API without previous_response_id support (like Copilot),
-- convert tool_calls to function_call items in input
if use_response_api then
for _, tool_call in ipairs(tool_calls) do
table.insert(messages, {
type = "function_call",
call_id = tool_call.id,
name = tool_call["function"].name,
arguments = tool_call["function"].arguments,
})
end
else
-- Chat Completions API format
local last_message = messages[#messages]
if last_message and last_message.role == self.role_map["assistant"] and last_message.tool_calls then
last_message.tool_calls = vim.list_extend(last_message.tool_calls, tool_calls)
if not last_message.content then last_message.content = "" end
else
table.insert(messages, { role = self.role_map["assistant"], tool_calls = tool_calls, content = "" })
end
end
end
-- If support_previous_response_id is true, Response API manages function call history
-- So we can skip adding tool_calls to input messages
end
if #tool_results > 0 then
for _, tool_result in ipairs(tool_results) do
-- Response API uses different format for function outputs
if use_response_api then
table.insert(messages, {
type = "function_call_output",
call_id = tool_result.tool_call_id,
output = tool_result.content or "",
})
else
table.insert(
messages,
{ role = "tool", tool_call_id = tool_result.tool_call_id, content = tool_result.content or "" }
)
end
end
end
end
end
end)
if Config.behaviour.support_paste_from_clipboard and opts.image_paths and #opts.image_paths > 0 then
local message_content = messages[#messages].content
if type(message_content) ~= "table" or message_content[1] == nil then
message_content = { { type = "text", text = message_content } }
end
for _, image_path in ipairs(opts.image_paths) do
table.insert(message_content, {
type = "image_url",
image_url = {
url = "data:image/png;base64," .. Clipboard.get_base64_content(image_path),
},
})
end
messages[#messages].content = message_content
end
local final_messages = {}
local prev_role = nil
local prev_type = nil
vim.iter(messages):each(function(message)
local role = message.role
if
role == prev_role
and role ~= "tool"
and prev_type ~= "function_call"
and prev_type ~= "function_call_output"
then
if role == self.role_map["assistant"] then
table.insert(final_messages, { role = self.role_map["user"], content = "Ok" })
else
table.insert(final_messages, { role = self.role_map["assistant"], content = "Ok, I understand." })
end
else
if role == "user" and prev_role == "tool" and M.is_mistral(provider_conf.endpoint) then
table.insert(final_messages, { role = self.role_map["assistant"], content = "Ok, I understand." })
end
end
prev_role = role
prev_type = message.type
table.insert(final_messages, message)
end)
return final_messages
end
function M:finish_pending_messages(ctx, opts)
if ctx.content ~= nil and ctx.content ~= "" then self:add_text_message(ctx, "", "generated", opts) end
if ctx.tool_use_map then
for _, tool_use in pairs(ctx.tool_use_map) do
if tool_use.state == "generating" then self:add_tool_use_message(ctx, tool_use, "generated", opts) end
end
end
end
local llm_tool_names = nil
function M:add_text_message(ctx, text, state, opts)
if llm_tool_names == nil then llm_tool_names = LlmTools.get_tool_names() end
if ctx.content == nil then ctx.content = "" end
ctx.content = ctx.content .. text
local content =
ctx.content:gsub("<tool_code>", ""):gsub("</tool_code>", ""):gsub("<tool_call>", ""):gsub("</tool_call>", "")
ctx.content = content
local msg = HistoryMessage:new("assistant", ctx.content, {
state = state,
uuid = ctx.content_uuid,
original_content = ctx.content,
})
ctx.content_uuid = msg.uuid
local msgs = { msg }
local xml_content = ctx.content
local xml_lines = vim.split(xml_content, "\n")
local cleaned_xml_lines = {}
local prev_tool_name = nil
for _, line in ipairs(xml_lines) do
if line:match("<tool_name>") then
local tool_name = line:match("<tool_name>(.*)</tool_name>")
if tool_name then prev_tool_name = tool_name end
elseif line:match("<parameters>") then
if prev_tool_name then table.insert(cleaned_xml_lines, "<" .. prev_tool_name .. ">") end
goto continue
elseif line:match("</parameters>") then
if prev_tool_name then table.insert(cleaned_xml_lines, "</" .. prev_tool_name .. ">") end
goto continue
end
table.insert(cleaned_xml_lines, line)
::continue::
end
local cleaned_xml_content = table.concat(cleaned_xml_lines, "\n")
local xml = ReActParser.parse(cleaned_xml_content)
if xml and #xml > 0 then
local new_content_list = {}
local xml_md_openned = false
for idx, item in ipairs(xml) do
if item.type == "text" then
local cleaned_lines = {}
local lines = vim.split(item.text, "\n")
for _, line in ipairs(lines) do
if line:match("^```xml") or line:match("^```tool_code") or line:match("^```tool_use") then
xml_md_openned = true
elseif line:match("^```$") then
if xml_md_openned then
xml_md_openned = false
else
table.insert(cleaned_lines, line)
end
else
table.insert(cleaned_lines, line)
end
end
table.insert(new_content_list, table.concat(cleaned_lines, "\n"))
goto continue
end
if not vim.tbl_contains(llm_tool_names, item.tool_name) then goto continue end
local input = {}
for k, v in pairs(item.tool_input or {}) do
local ok, jsn = pcall(vim.json.decode, v)
if ok and jsn then
input[k] = jsn
else
input[k] = v
end
end
if next(input) ~= nil then
local msg_uuid = ctx.content_uuid .. "-" .. idx
local tool_use_id = msg_uuid
local tool_message_state = item.partial and "generating" or "generated"
local msg_ = HistoryMessage:new("assistant", {
type = "tool_use",
name = item.tool_name,
id = tool_use_id,
input = input,
}, {
state = tool_message_state,
uuid = msg_uuid,
turn_id = ctx.turn_id,
})
msgs[#msgs + 1] = msg_
ctx.tool_use_map = ctx.tool_use_map or {}
local input_json = type(input) == "string" and input or vim.json.encode(input)
local exists = false
for _, tool_use in pairs(ctx.tool_use_map) do
if tool_use.id == tool_use_id then
tool_use.input_json = input_json
exists = true
end
end
if not exists then
local tool_key = tostring(vim.tbl_count(ctx.tool_use_map))
ctx.tool_use_map[tool_key] = {
uuid = tool_use_id,
id = tool_use_id,
name = item.tool_name,
input_json = input_json,
state = "generating",
}
end
opts.on_stop({ reason = "tool_use", streaming_tool_use = item.partial })
end
::continue::
end
msg.message.content = table.concat(new_content_list, "\n"):gsub("\n+$", "\n")
end
if opts.on_messages_add then opts.on_messages_add(msgs) end
end
function M:add_thinking_message(ctx, text, state, opts)
if ctx.reasonging_content == nil then ctx.reasonging_content = "" end
ctx.reasonging_content = ctx.reasonging_content .. text
local msg = HistoryMessage:new("assistant", {
type = "thinking",
thinking = ctx.reasonging_content,
signature = "",
}, {
state = state,
uuid = ctx.reasonging_content_uuid,
turn_id = ctx.turn_id,
})
ctx.reasonging_content_uuid = msg.uuid
if opts.on_messages_add then opts.on_messages_add({ msg }) end
end
function M:add_tool_use_message(ctx, tool_use, state, opts)
local jsn = JsonParser.parse(tool_use.input_json)
local msg = HistoryMessage:new("assistant", {
type = "tool_use",
name = tool_use.name,
id = tool_use.id,
input = jsn or {},
}, {
state = state,
uuid = tool_use.uuid,
turn_id = ctx.turn_id,
})
tool_use.uuid = msg.uuid
tool_use.state = state
if opts.on_messages_add then opts.on_messages_add({ msg }) end
if state == "generating" then opts.on_stop({ reason = "tool_use", streaming_tool_use = true }) end
end
function M:add_reasoning_message(ctx, reasoning_item, opts)
local msg = HistoryMessage:new("assistant", {
type = "reasoning",
id = reasoning_item.id,
encrypted_content = reasoning_item.encrypted_content,
summary = reasoning_item.summary,
}, {
state = "generated",
uuid = Utils.uuid(),
turn_id = ctx.turn_id,
})
if opts.on_messages_add then opts.on_messages_add({ msg }) end
end
---@param usage avante.OpenAITokenUsage | nil
---@return avante.LLMTokenUsage | nil
function M.transform_openai_usage(usage)
if not usage then return nil end
if usage == vim.NIL then return nil end
---@type avante.LLMTokenUsage
local res = {
prompt_tokens = usage.prompt_tokens,
completion_tokens = usage.completion_tokens,
}
return res
end
function M:parse_response(ctx, data_stream, _, opts)
if data_stream:match('"%[DONE%]":') or data_stream == "[DONE]" then
self:finish_pending_messages(ctx, opts)
if ctx.tool_use_map and vim.tbl_count(ctx.tool_use_map) > 0 then
ctx.tool_use_map = {}
opts.on_stop({ reason = "tool_use" })
else
opts.on_stop({ reason = "complete" })
end
return
end
local jsn = vim.json.decode(data_stream)
-- Check if this is a Response API event (has 'type' field)
if jsn.type and type(jsn.type) == "string" then
-- Response API event-driven format
if jsn.type == "response.output_text.delta" then
-- Text content delta
if jsn.delta and jsn.delta ~= vim.NIL and jsn.delta ~= "" then
if opts.on_chunk then opts.on_chunk(jsn.delta) end
self:add_text_message(ctx, jsn.delta, "generating", opts)
end
elseif jsn.type == "response.reasoning_summary_text.delta" then
-- Reasoning summary delta
if jsn.delta and jsn.delta ~= vim.NIL and jsn.delta ~= "" then
if ctx.returned_think_start_tag == nil or not ctx.returned_think_start_tag then
ctx.returned_think_start_tag = true
if opts.on_chunk then opts.on_chunk("<think>\n") end
end
ctx.last_think_content = jsn.delta
self:add_thinking_message(ctx, jsn.delta, "generating", opts)
if opts.on_chunk then opts.on_chunk(jsn.delta) end
end
elseif jsn.type == "response.function_call_arguments.delta" then
-- Function call arguments delta
if jsn.delta and jsn.delta ~= vim.NIL and jsn.delta ~= "" then
if not ctx.tool_use_map then ctx.tool_use_map = {} end
local tool_key = tostring(jsn.output_index or 0)
if not ctx.tool_use_map[tool_key] then
ctx.tool_use_map[tool_key] = {
name = jsn.name or "",
id = jsn.call_id or "",
input_json = jsn.delta,
}
else
ctx.tool_use_map[tool_key].input_json = ctx.tool_use_map[tool_key].input_json .. jsn.delta
end
end
elseif jsn.type == "response.output_item.added" then
-- Output item added (could be function call or reasoning)
if jsn.item and jsn.item.type == "function_call" then
local tool_key = tostring(jsn.output_index or 0)
if not ctx.tool_use_map then ctx.tool_use_map = {} end
ctx.tool_use_map[tool_key] = {
name = jsn.item.name or "",
id = jsn.item.call_id or jsn.item.id or "",
input_json = "",
}
self:add_tool_use_message(ctx, ctx.tool_use_map[tool_key], "generating", opts)
elseif jsn.item and jsn.item.type == "reasoning" then
-- Add reasoning item to history
self:add_reasoning_message(ctx, jsn.item, opts)
end
elseif jsn.type == "response.output_item.done" then
-- Output item done (finalize function call)
if jsn.item and jsn.item.type == "function_call" then
local tool_key = tostring(jsn.output_index or 0)
if ctx.tool_use_map and ctx.tool_use_map[tool_key] then
local tool_use = ctx.tool_use_map[tool_key]
if jsn.item.arguments then tool_use.input_json = jsn.item.arguments end
self:add_tool_use_message(ctx, tool_use, "generated", opts)
end
end
elseif jsn.type == "response.completed" or jsn.type == "response.done" then
-- Response completed - save response.id for future requests
if jsn.response and jsn.response.id then
ctx.last_response_id = jsn.response.id
-- Store in provider for next request
self.last_response_id = jsn.response.id
end
if
ctx.returned_think_start_tag ~= nil and (ctx.returned_think_end_tag == nil or not ctx.returned_think_end_tag)
then
ctx.returned_think_end_tag = true
if opts.on_chunk then
if
ctx.last_think_content
and ctx.last_think_content ~= vim.NIL
and ctx.last_think_content:sub(-1) ~= "\n"
then
opts.on_chunk("\n</think>\n")
else
opts.on_chunk("</think>\n")
end
end
self:add_thinking_message(ctx, "", "generated", opts)
end
self:finish_pending_messages(ctx, opts)
local usage = nil
if jsn.response and jsn.response.usage then usage = self.transform_openai_usage(jsn.response.usage) end
if ctx.tool_use_map and vim.tbl_count(ctx.tool_use_map) > 0 then
opts.on_stop({ reason = "tool_use", usage = usage })
else
opts.on_stop({ reason = "complete", usage = usage })
end
elseif jsn.type == "error" then
-- Error event
local error_msg = jsn.error and vim.inspect(jsn.error) or "Unknown error"
opts.on_stop({ reason = "error", error = error_msg })
end
return
end
-- Chat Completions API format (original code)
if jsn.usage and jsn.usage ~= vim.NIL then
if opts.update_tokens_usage then
local usage = self.transform_openai_usage(jsn.usage)
if usage then opts.update_tokens_usage(usage) end
end
end
if jsn.error and jsn.error ~= vim.NIL then
opts.on_stop({ reason = "error", error = vim.inspect(jsn.error) })
return
end
---@cast jsn AvanteOpenAIChatResponse
if not jsn.choices then return end
local choice = jsn.choices[1]
if not choice then return end
local delta = choice.delta
if not delta then
local provider_conf = Providers.parse_config(self)
if provider_conf.model:match("o1") then delta = choice.message end
end
if not delta then return end
if delta.reasoning_content and delta.reasoning_content ~= vim.NIL and delta.reasoning_content ~= "" then
if ctx.returned_think_start_tag == nil or not ctx.returned_think_start_tag then
ctx.returned_think_start_tag = true
if opts.on_chunk then opts.on_chunk("<think>\n") end
end
ctx.last_think_content = delta.reasoning_content
self:add_thinking_message(ctx, delta.reasoning_content, "generating", opts)
if opts.on_chunk then opts.on_chunk(delta.reasoning_content) end
elseif delta.reasoning and delta.reasoning ~= vim.NIL then
if ctx.returned_think_start_tag == nil or not ctx.returned_think_start_tag then
ctx.returned_think_start_tag = true
if opts.on_chunk then opts.on_chunk("<think>\n") end
end
ctx.last_think_content = delta.reasoning
self:add_thinking_message(ctx, delta.reasoning, "generating", opts)
if opts.on_chunk then opts.on_chunk(delta.reasoning) end
elseif delta.tool_calls and delta.tool_calls ~= vim.NIL then
local choice_index = choice.index or 0
for idx, tool_call in ipairs(delta.tool_calls) do
--- In Gemini's so-called OpenAI Compatible API, tool_call.index is nil, which is quite absurd! Therefore, a compatibility fix is needed here.
if tool_call.index == nil then tool_call.index = choice_index + idx - 1 end
if not ctx.tool_use_map then ctx.tool_use_map = {} end
local tool_key = tostring(tool_call.index)
local prev_tool_key = tostring(tool_call.index - 1)
if not ctx.tool_use_map[tool_key] then
local prev_tool_use = ctx.tool_use_map[prev_tool_key]
if tool_call.index > 0 and prev_tool_use then
self:add_tool_use_message(ctx, prev_tool_use, "generated", opts)
end
local tool_use = {
name = tool_call["function"].name,
id = tool_call.id,
input_json = type(tool_call["function"].arguments) == "string" and tool_call["function"].arguments or "",
}
ctx.tool_use_map[tool_key] = tool_use
self:add_tool_use_message(ctx, tool_use, "generating", opts)
else
local tool_use = ctx.tool_use_map[tool_key]
if tool_call["function"].arguments == vim.NIL then tool_call["function"].arguments = "" end
tool_use.input_json = tool_use.input_json .. tool_call["function"].arguments
-- self:add_tool_use_message(ctx, tool_use, "generating", opts)
end
end
elseif delta.content then
if
ctx.returned_think_start_tag ~= nil and (ctx.returned_think_end_tag == nil or not ctx.returned_think_end_tag)
then
ctx.returned_think_end_tag = true
if opts.on_chunk then
if ctx.last_think_content and ctx.last_think_content ~= vim.NIL and ctx.last_think_content:sub(-1) ~= "\n" then
opts.on_chunk("\n</think>\n")
else
opts.on_chunk("</think>\n")
end
end
self:add_thinking_message(ctx, "", "generated", opts)
end
if delta.content ~= vim.NIL then
if opts.on_chunk then opts.on_chunk(delta.content) end
self:add_text_message(ctx, delta.content, "generating", opts)
end
end
if choice.finish_reason == "stop" or choice.finish_reason == "eos_token" or choice.finish_reason == "length" then
self:finish_pending_messages(ctx, opts)
if ctx.tool_use_map and vim.tbl_count(ctx.tool_use_map) > 0 then
opts.on_stop({ reason = "tool_use", usage = self.transform_openai_usage(jsn.usage) })
else
opts.on_stop({ reason = "complete", usage = self.transform_openai_usage(jsn.usage) })
end
end
if choice.finish_reason == "tool_calls" then
self:finish_pending_messages(ctx, opts)
opts.on_stop({
reason = "tool_use",
usage = self.transform_openai_usage(jsn.usage),
})
end
end
function M:parse_response_without_stream(data, _, opts)
---@type AvanteOpenAIChatResponse
local json = vim.json.decode(data)
if json.choices and json.choices[1] then
local choice = json.choices[1]
if choice.message and choice.message.content then
if opts.on_chunk then opts.on_chunk(choice.message.content) end
self:add_text_message({}, choice.message.content, "generated", opts)
vim.schedule(function() opts.on_stop({ reason = "complete" }) end)
end
end
end
---@param prompt_opts AvantePromptOptions
---@return AvanteCurlOutput|nil
function M:parse_curl_args(prompt_opts)
local provider_conf, request_body = Providers.parse_config(self)
local disable_tools = provider_conf.disable_tools or false
local headers = {
["Content-Type"] = "application/json",
}
if Providers.env.require_api_key(provider_conf) then
local api_key = self.parse_api_key()
if api_key == nil then
Utils.error(Config.provider .. ": API key is not set, please set it in your environment variable or config file")
return nil
end
headers["Authorization"] = "Bearer " .. api_key
end
if M.is_openrouter(provider_conf.endpoint) then
headers["HTTP-Referer"] = "https://github.com/yetone/avante.nvim"
headers["X-Title"] = "Avante.nvim"
request_body.include_reasoning = true
end
self.set_allowed_params(provider_conf, request_body)
local use_response_api = Providers.resolve_use_response_api(provider_conf, prompt_opts)
local use_ReAct_prompt = provider_conf.use_ReAct_prompt == true
local tools = nil
if not disable_tools and prompt_opts.tools and not use_ReAct_prompt then
tools = {}
for _, tool in ipairs(prompt_opts.tools) do
local transformed_tool = self:transform_tool(tool)
-- Response API uses flattened tool structure
if use_response_api then
-- Convert from {type: "function", function: {name, description, parameters}}
-- to {type: "function", name, description, parameters}
if transformed_tool.type == "function" and transformed_tool["function"] then
transformed_tool = {
type = "function",
name = transformed_tool["function"].name,
description = transformed_tool["function"].description,
parameters = transformed_tool["function"].parameters,
}
end
end
table.insert(tools, transformed_tool)
end
end
Utils.debug("endpoint", provider_conf.endpoint)
Utils.debug("model", provider_conf.model)
local stop = nil
if use_ReAct_prompt then stop = { "</tool_use>" } end
-- Determine endpoint path based on use_response_api
local endpoint_path = use_response_api and "/responses" or "/chat/completions"
local parsed_messages = self:parse_messages(prompt_opts)
-- Build base body
local base_body = {
model = provider_conf.model,
stop = stop,
stream = true,
tools = tools,
}
-- Response API uses 'input' instead of 'messages'
if use_response_api then
-- Check if we have tool results - if so, use previous_response_id
local has_function_outputs = false
for _, msg in ipairs(parsed_messages) do
if msg.type == "function_call_output" then
has_function_outputs = true
break
end
end
if has_function_outputs and self.last_response_id then
-- When sending function outputs, use previous_response_id
base_body.previous_response_id = self.last_response_id
-- Only send the function outputs, not the full history
local function_outputs = {}
for _, msg in ipairs(parsed_messages) do
if msg.type == "function_call_output" then table.insert(function_outputs, msg) end
end
base_body.input = function_outputs
-- Clear the stored response_id after using it
self.last_response_id = nil
else
-- Normal request without tool results
base_body.input = parsed_messages
end
-- Response API uses max_output_tokens instead of max_tokens/max_completion_tokens
if request_body.max_completion_tokens then
request_body.max_output_tokens = request_body.max_completion_tokens
request_body.max_completion_tokens = nil
end
if request_body.max_tokens then
request_body.max_output_tokens = request_body.max_tokens
request_body.max_tokens = nil
end
-- Response API doesn't use stream_options
base_body.stream_options = nil
else
base_body.messages = parsed_messages
base_body.stream_options = not M.is_mistral(provider_conf.endpoint) and {
include_usage = true,
} or nil
end
return {
url = Utils.url_join(provider_conf.endpoint, endpoint_path),
proxy = provider_conf.proxy,
insecure = provider_conf.allow_insecure,
headers = Utils.tbl_override(headers, self.extra_headers),
body = vim.tbl_deep_extend("force", base_body, request_body),
}
end
return M