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91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
/*
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* Copyright 2026 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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"errors"
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"flag"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/cloudwego/eino/schema"
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examplemodel "github.com/cloudwego/eino-examples/adk/common/model"
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)
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func main() {
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var instruction string
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flag.StringVar(&instruction, "instruction", "You are a helpful assistant.", "")
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flag.Parse()
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query := strings.TrimSpace(strings.Join(flag.Args(), " "))
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if query == "" {
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_, _ = fmt.Fprintln(os.Stderr, "usage: go run ./cmd/ch01 -- \"your question\"")
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os.Exit(2)
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}
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ctx := context.Background()
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cm := examplemodel.NewChatModel()
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msgs := make([]*schema.Message, 0, 2)
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if strings.TrimSpace(instruction) != "" {
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msgs = append(msgs, schema.SystemMessage(instruction))
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}
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msgs = append(msgs, schema.UserMessage(query))
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_, _ = fmt.Fprint(os.Stdout, "[assistant] ")
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stream, err := cm.Stream(ctx, msgs)
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if err == nil {
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stream.SetAutomaticClose()
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if err := printChatModelStream(stream); err != nil {
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_, _ = fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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_, _ = fmt.Fprintln(os.Stdout)
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return
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}
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out, err := cm.Generate(ctx, msgs)
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if err != nil {
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_, _ = fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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if out != nil {
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_, _ = fmt.Fprintln(os.Stdout, out.Content)
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} else {
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_, _ = fmt.Fprintln(os.Stdout)
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}
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}
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func printChatModelStream(stream *schema.StreamReader[*schema.Message]) error {
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for {
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frame, err := stream.Recv()
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if errors.Is(err, io.EOF) {
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return nil
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}
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if err != nil {
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return err
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}
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if frame != nil {
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_, _ = fmt.Fprint(os.Stdout, frame.Content)
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}
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}
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}
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