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99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
/*
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* Copyright 2025 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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"os"
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"github.com/cloudwego/eino-ext/components/model/openai"
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"github.com/cloudwego/eino/flow/agent/react"
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"github.com/cloudwego/eino/schema"
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"github.com/cloudwego/eino-examples/flow/agent/react/memory_example/memory"
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)
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func main() {
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ctx := context.Background()
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apiKey := os.Getenv("OPENAI_API_KEY")
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modelName := os.Getenv("OPENAI_MODEL")
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baseURL := os.Getenv("OPENAI_BASE_URL")
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isAzure := os.Getenv("OPENAI_BY_AZURE") == "true"
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model, err := openai.NewChatModel(ctx, &openai.ChatModelConfig{APIKey: apiKey, Model: modelName, BaseURL: baseURL, ByAzure: isAzure})
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if err != nil {
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panic(err)
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}
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// System prompt is injected at runtime and not persisted.
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sys := "You are a concise assistant. Maintain context across turns."
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agent, err := react.NewAgent(ctx, &react.AgentConfig{
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Model: model,
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MessageModifier: func(_ context.Context, input []*schema.Message) []*schema.Message {
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return append([]*schema.Message{schema.SystemMessage(sys)}, input...)
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},
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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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// Choose your store: InMemoryStore (default) or RedisStore (see README).
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store := memory.NewInMemoryStore()
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sessionID := "session:demo"
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verifyGobRoundTrip()
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run := func(turn string) {
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// 1) restore prior messages, 2) append new input, 3) call agent, 4) persist with output
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prev, _ := store.Read(ctx, sessionID)
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eff := append(prev, schema.UserMessage(turn))
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msg, err := agent.Generate(ctx, eff)
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if err != nil {
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panic(err)
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}
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fmt.Printf("history_before=%d after=%d\n", len(prev), len(eff)+1)
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fmt.Println(msg.Content)
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_ = store.Write(ctx, sessionID, append(eff, msg))
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hits, _ := store.Query(ctx, sessionID, "AI", 3)
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fmt.Printf("query_hits=%d\n", len(hits))
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}
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run("Hello, summarize AI briefly.")
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run("Add two more details.")
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}
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func verifyGobRoundTrip() {
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msgs := []*schema.Message{
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schema.UserMessage("a"),
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schema.AssistantMessage("b", nil),
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}
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// Round-trip serialize/deserialize to validate gob setup.
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b, err := memory.EncodeMessages(msgs)
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if err != nil {
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panic(err)
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}
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out, err := memory.DecodeMessages(b)
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if err != nil {
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panic(err)
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}
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fmt.Printf("gob_round_trip=%d\n", len(out))
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}
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