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# File 'lib/legion/llm/api/namespaces/native/chat.rb', line 29
def self.registered(ns_context)
log.debug('[llm][api][namespaces][chat] registering routes')
ns_context.post '' do
log.debug("[llm][api][namespaces][chat] action=received params=#{params.keys}")
require_llm!
request_started_at = ::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
body = parse_request_body
validate_required!(body, :message)
message = body[:message]
request_id = body[:request_id] || SecureRandom.uuid
model = body[:model]
provider = body[:provider]
log.debug("[llm][api][namespaces][chat] action=dispatch request_id=#{request_id} model=#{model || 'auto'}")
cache_active = defined?(Legion::LLM::Cache::Response) &&
Legion::LLM::Cache::Response.respond_to?(:init_request) &&
env['HTTP_X_LEGION_SYNC'] != 'true'
if cache_active
log.debug("[llm][api][namespaces][chat] action=async_dispatch request_id=#{request_id}")
Legion::LLM::Cache::Response.init_request(request_id)
llm = Legion::LLM
rc = Legion::LLM::Cache::Response
begin
ASYNC_POOL.post do
session = llm.chat_direct(model: model, provider: provider)
response = session.ask(message)
rc.complete(
request_id,
response: response.content,
meta: {
model: session.model.to_s,
tokens_in: response.respond_to?(:input_tokens) ? response.input_tokens : nil,
tokens_out: response.respond_to?(:output_tokens) ? response.output_tokens : nil
}
)
Legion::LLM::Audit.emit_prompt(
request_id: request_id,
caller: { requested_by: { identity: 'api:chat:async', type: :external } },
routing: { model: session.model.to_s, provider: provider },
tokens: { input_tokens: response.respond_to?(:input_tokens) ? response.input_tokens : 0,
output_tokens: response.respond_to?(:output_tokens) ? response.output_tokens : 0 },
timestamp: Time.now
)
log.debug("[llm][api][namespaces][chat] action=async_complete request_id=#{request_id}")
rescue StandardError => e
handle_exception(e, level: :error, handled: true, operation: 'llm.api.chat.async', request_id: request_id)
rc.fail_request(request_id, code: 'llm_error', message: e.message)
end
rescue Concurrent::RejectedExecutionError
log.warn("[llm][api][namespaces][chat] action=async_pool_saturated request_id=#{request_id}")
halt json_error('queue_full', 'Chat queue is currently full. Please retry.', status_code: 503)
end
log.info("[llm][api][namespaces][chat] action=queued request_id=#{request_id}")
json_response({ request_id: request_id, poll_key: "llm:#{request_id}:status" }, status_code: 202)
else
log.debug("[llm][api][namespaces][chat] action=sync_dispatch request_id=#{request_id}")
result = Legion::LLM.chat(
message: message,
model: model,
provider: provider,
caller: build_server_caller(source: 'api', path: request.path, env: env)
)
if result.is_a?(Legion::LLM::Inference::Response)
raw_msg = result.message
content = raw_msg.is_a?(Hash) ? (raw_msg[:content] || raw_msg['content']) : raw_msg.to_s
routing = result.routing || {}
resolved_model = routing[:model] || routing['model']
tokens = result.tokens || {}
log_api_completion_summary(
namespace: 'namespaces][chat',
request_id: request_id,
pipeline_response: result,
stream: false,
started_at: request_started_at,
tool_calls: (result),
stop_reason: api_stop_reason(result)
)
json_response(
{
response: content,
meta: {
model: resolved_model.to_s,
tokens_in: token_value(tokens, :input),
tokens_out: token_value(tokens, :output)
}
},
status_code: 201
)
else
response = result
log.info("[llm][api][namespaces][chat] action=completed request_id=#{request_id} result_class=#{response.class}")
json_response(
{
response: response.respond_to?(:content) ? response.content : response.to_s,
meta: {
model: response.respond_to?(:model_id) ? response.model_id.to_s : model.to_s,
tokens_in: response.respond_to?(:input_tokens) ? response.input_tokens : nil,
tokens_out: response.respond_to?(:output_tokens) ? response.output_tokens : nil
}
},
status_code: 201
)
end
end
end
log.debug('[llm][api][namespaces][chat] routes registered')
end
|