8cf770613a
Remove sanitizeRequest and its call sites so the client no longer strips sampling parameters based on the model registry. Unsupported knobs are now avoided by setting the config carefully per model rather than silently mutating outgoing requests. Signed-off-by: Émile Ré <emile@probo.com>
143 lines
3.6 KiB
Go
143 lines
3.6 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package llm
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import (
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"context"
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"io"
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"time"
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"go.gearno.de/kit/log"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/trace"
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)
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var tracerName = "go.probo.inc/probo/pkg/llm"
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type (
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Option func(*Client)
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Client struct {
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provider Provider
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system string
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logger *log.Logger
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tracerProvider trace.TracerProvider
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tracer trace.Tracer
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}
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)
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func WithLogger(l *log.Logger) Option {
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return func(c *Client) {
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c.logger = l
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}
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}
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func WithTracerProvider(tp trace.TracerProvider) Option {
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return func(c *Client) {
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c.tracerProvider = tp
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}
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}
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// NewClient creates a new instrumented LLM client.
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// The system parameter identifies the provider for the OTel gen_ai.provider.name
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// attribute (e.g., "openai", "anthropic", "aws.bedrock").
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func NewClient(provider Provider, system string, opts ...Option) *Client {
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c := &Client{
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provider: provider,
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system: system,
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logger: log.NewLogger(log.WithOutput(io.Discard)),
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tracerProvider: otel.GetTracerProvider(),
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}
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for _, opt := range opts {
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opt(c)
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}
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c.logger = c.logger.Named("llm").With(log.String("system", system))
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c.tracer = c.tracerProvider.Tracer(tracerName)
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return c
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}
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func (c *Client) ChatCompletion(ctx context.Context, req *ChatCompletionRequest) (*ChatCompletionResponse, error) {
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ctx, span := startChatSpan(ctx, c.tracer, c.system, req)
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c.logger.InfoCtx(
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ctx,
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"chat completion request",
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log.String("model", req.Model),
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log.Int("message_count", len(req.Messages)),
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log.Int("tool_count", len(req.Tools)),
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)
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start := time.Now()
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resp, err := c.provider.ChatCompletion(ctx, req)
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duration := time.Since(start)
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if err != nil {
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c.logger.ErrorCtx(
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ctx,
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"chat completion failed",
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log.String("model", req.Model),
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log.Duration("duration", duration),
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log.Error(err),
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)
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endChatSpan(span, nil, err)
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return nil, err
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}
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c.logger.InfoCtx(
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ctx,
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"chat completion response",
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log.String("model", resp.Model),
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log.Int("input_tokens", resp.Usage.InputTokens),
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log.Int("output_tokens", resp.Usage.OutputTokens),
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log.String("finish_reason", string(resp.FinishReason)),
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log.Duration("duration", duration),
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)
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endChatSpan(span, resp, nil)
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return resp, nil
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}
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func (c *Client) ChatCompletionStream(ctx context.Context, req *ChatCompletionRequest) (ChatCompletionStream, error) {
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ctx, span := startChatSpan(ctx, c.tracer, c.system, req)
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c.logger.InfoCtx(
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ctx,
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"chat completion stream request",
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log.String("model", req.Model),
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log.Int("message_count", len(req.Messages)),
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log.Int("tool_count", len(req.Tools)),
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)
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stream, err := c.provider.ChatCompletionStream(ctx, req)
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if err != nil {
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c.logger.ErrorCtx(
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ctx,
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"chat completion stream failed",
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log.String("model", req.Model),
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log.Error(err),
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)
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endChatSpan(span, nil, err)
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return nil, err
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}
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return newTracedStream(stream, span), nil
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}
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