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122 lines
3.3 KiB
Go
122 lines
3.3 KiB
Go
/*
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* Copyright 2024 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"context"
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"fmt"
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"io"
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"os"
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clc "github.com/cloudwego/eino-ext/callbacks/cozeloop"
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"github.com/cloudwego/eino/callbacks"
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"github.com/cloudwego/eino/components/model"
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"github.com/cloudwego/eino/components/prompt"
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"github.com/cloudwego/eino/compose"
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"github.com/cloudwego/eino/schema"
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"github.com/coze-dev/cozeloop-go"
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)
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const (
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nodeOfModel = "model"
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nodeOfPrompt = "prompt"
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)
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func main() {
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cozeloopApiToken := os.Getenv("COZELOOP_API_TOKEN")
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cozeloopWorkspaceID := os.Getenv("COZELOOP_WORKSPACE_ID") // use cozeloop trace, from https://loop.coze.cn/open/docs/cozeloop/go-sdk#4a8c980e
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ctx := context.Background()
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var handlers []callbacks.Handler
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if cozeloopApiToken != "" && cozeloopWorkspaceID != "" {
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client, err := cozeloop.NewClient(
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cozeloop.WithAPIToken(cozeloopApiToken),
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cozeloop.WithWorkspaceID(cozeloopWorkspaceID),
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)
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if err != nil {
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panic(err)
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}
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defer client.Close(ctx)
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handlers = append(handlers, clc.NewLoopHandler(client))
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}
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callbacks.AppendGlobalHandlers(handlers...)
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g := compose.NewGraph[map[string]any, *schema.Message]()
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pt := prompt.FromMessages(
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schema.FString,
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schema.UserMessage("what's the weather in {location}?"),
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)
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_ = g.AddChatTemplateNode(nodeOfPrompt, pt) // error check can be skipped here because in Compile, we will check the error happened here too
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_ = g.AddChatModelNode(nodeOfModel, &mockChatModel{}, compose.WithNodeName("ChatModel"))
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_ = g.AddEdge(compose.START, nodeOfPrompt)
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_ = g.AddEdge(nodeOfPrompt, nodeOfModel)
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_ = g.AddEdge(nodeOfModel, compose.END)
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r, err := g.Compile(ctx, compose.WithMaxRunSteps(10))
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if err != nil {
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panic(err)
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}
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in := map[string]any{"location": "beijing"}
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ret, err := r.Invoke(ctx, in)
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if err != nil {
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panic(err)
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}
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fmt.Println("invoke result: ", ret)
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// stream
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s, err := r.Stream(ctx, in)
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if err != nil {
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panic(err)
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}
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defer s.Close()
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for {
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chunk, err := s.Recv()
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if err != nil {
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if err == io.EOF {
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break
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}
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panic(err)
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}
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fmt.Println("stream chunk: ", chunk)
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}
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}
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type mockChatModel struct{}
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func (m *mockChatModel) Generate(ctx context.Context, input []*schema.Message, opts ...model.Option) (*schema.Message, error) {
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return schema.AssistantMessage("the weather is good", nil), nil
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}
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func (m *mockChatModel) Stream(ctx context.Context, input []*schema.Message, opts ...model.Option) (*schema.StreamReader[*schema.Message], error) {
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sr, sw := schema.Pipe[*schema.Message](0)
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go func() {
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defer sw.Close()
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sw.Send(schema.AssistantMessage("the weather is", nil), nil)
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sw.Send(schema.AssistantMessage(" good", nil), nil)
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}()
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return sr, nil
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}
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func (m *mockChatModel) BindTools(tools []*schema.ToolInfo) error {
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panic("implement me")
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}
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