mirror of
https://gitcode.com/JianFeeeee/ModelRouter.git
synced 2026-09-20 08:57:57 +00:00
jianf
3069cfce4e
The prior usage-passthrough fix only covered openai/opencode; the same empty-choices+usage drop bug remained in the 5 sibling OpenAI-compatible adapters, and non-OpenAI providers (anthropic/gemini/ollama) never surfaced streaming usage at all. - deepseek/github/groq/kimicode/mistral: preserve usage on empty-choices chunks and attach it to normal chunks (same pattern as openai.lua) - anthropic: emit usage from message_start (prompt) and message_delta (completion); gateway merges split usage additively - gemini: read usageMetadata in the stream path - ollama: fix non-streaming key (usage -> token_usage, matches UnifiedResponse json tag) and read prompt_eval_count/eval_count; surface counts from the done stream chunk - gateway: mergeUsage combines usage across chunks (non-zero fields win, total recomputed from prompt+completion) so split usage doesn't lose the prompt half; single-chunk case (OpenAI) preserved exactly - usage-only chunks: done=false (no redundant terminal stop), matching the Go fallback standardSSEChunk
106 lines
3.5 KiB
Lua
106 lines
3.5 KiB
Lua
local adapter = {}
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adapter.name = "groq"
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adapter.version = "2.0.0"
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adapter.endpoint = "/openai/v1/chat/completions"
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adapter.headers = {}
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-- Groq API is OpenAI-compatible
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function adapter.transform_request(raw_body)
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local ok, req = pcall(json.decode, raw_body)
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if not ok then return raw_body end
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req.model = req.model or "llama3-70b-8192"
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req.temperature = req.temperature or 0.7
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req.max_tokens = req.max_tokens or 4096
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req.stream = req.stream or false
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req.disable_thinking = nil
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req.extra_body = nil
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return json.encode(req)
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end
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function adapter.transform_response(raw_body)
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local ok, resp = pcall(json.decode, raw_body)
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if not ok or resp == nil then return raw_body end
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local unified = {
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content = "",
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finish_reason = "",
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token_usage = { prompt = 0, completion = 0, total = 0 }
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}
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if type(resp.usage) == "table" then
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unified.token_usage.prompt = resp.usage.prompt_tokens or 0
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unified.token_usage.completion = resp.usage.completion_tokens or 0
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unified.token_usage.total = resp.usage.total_tokens or 0
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end
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if type(resp.choices) == "table" and #resp.choices > 0 then
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local ch = resp.choices[1]
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if type(ch.message) == "table" then
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unified.content = ch.message.content or ""
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if type(ch.message.tool_calls) == "table" then
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local tcs = {}
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for _, tc in ipairs(ch.message.tool_calls) do
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local args_ok, args = pcall(json.decode, tc["function"].arguments)
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if not args_ok then args = {} end
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table.insert(tcs, {
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id = tc.id,
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type = tc.type or "function",
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name = tc["function"].name,
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arguments = args
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})
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end
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unified.tool_calls = tcs
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end
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end
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unified.finish_reason = ch.finish_reason or ""
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end
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return json.encode(unified)
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end
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function adapter.transform_stream_chunk(raw_chunk)
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local ok, chunk = pcall(json.decode, raw_chunk)
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if not ok then return "" end
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-- OpenAI-style streams may attach usage to a chunk with empty choices
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-- (the final usage chunk). Keys must match Go's TokenUsage json tags
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-- (prompt/completion/total); the gateway re-emits standard *_tokens.
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local uses = nil
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if type(chunk.usage) == "table" then
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uses = {
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prompt = chunk.usage.prompt_tokens or chunk.usage.prompt or 0,
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completion = chunk.usage.completion_tokens or chunk.usage.completion or 0,
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total = chunk.usage.total_tokens or chunk.usage.total or 0,
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}
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end
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if not chunk.choices or #chunk.choices == 0 then
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if uses ~= nil then
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-- usage-only chunk is not a content/finish signal; the gateway
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-- emits its own terminal stop chunk and merges this usage.
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return json.encode({ usage = uses, done = false })
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end
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return ""
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end
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local delta = chunk.choices[1].delta or {}
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local fr = chunk.choices[1].finish_reason
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local unified = {
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content = delta.content or "",
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done = (fr ~= nil)
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}
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if uses ~= nil then
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unified.usage = uses
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end
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if delta.reasoning_content then
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unified.reasoning_content = delta.reasoning_content
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end
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if delta.tool_calls then
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unified.tool_calls = delta.tool_calls
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end
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return json.encode(unified)
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end
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return adapter
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