main.go•2.94 kB
// Copyright 2025 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
package main
import (
"context"
"log"
"github.com/firebase/genkit/go/ai"
"github.com/firebase/genkit/go/core"
"github.com/firebase/genkit/go/genkit"
"github.com/firebase/genkit/go/plugins/googlegenai"
"github.com/firebase/genkit/go/plugins/localvec"
)
// menuItem is the data model for an item on the menu.
type menuItem struct {
Title string `json:"title" jsonschema_description:"The name of the menu item"`
Description string `json:"description" jsonschema_description:"Details including ingredients and preparation"`
Price float64 `json:"price" jsonschema_description:"Price in dollars"`
}
// menuQuestionInput is a question about the menu.
type menuQuestionInput struct {
Question string `json:"question"`
}
// answerOutput is an answer to a question.
type answerOutput struct {
Answer string `json:"answer"`
}
// dataMenuQuestionInput is a question about the menu,
// where the menu is provided in the JSON data.
type dataMenuQuestionInput struct {
MenuData []*menuItem `json:"menuData"`
Question string `json:"question"`
}
// textMenuQuestionInput is for a question about the menu,
// where the menu is provided as unstructured text.
type textMenuQuestionInput struct {
MenuText string `json:"menuText"`
Question string `json:"question"`
}
func main() {
ctx := context.Background()
g := genkit.Init(ctx, genkit.WithPlugins(&googlegenai.VertexAI{}))
model := googlegenai.VertexAIModel(g, "gemini-2.0-flash")
embedder := googlegenai.VertexAIEmbedder(g, "text-embedding-004")
if err := setup01(g, model); err != nil {
log.Fatal(err)
}
if err := setup02(g, model); err != nil {
log.Fatal(err)
}
if err := setup03(g, model); err != nil {
log.Fatal(err)
}
if err := localvec.Init(); err != nil {
log.Fatal(err)
}
retOpts := &ai.RetrieverOptions{
ConfigSchema: core.InferSchemaMap(localvec.RetrieverOptions{}),
Label: "go-menu_items",
Supports: &ai.RetrieverSupports{
Media: false,
},
}
docStore, retriever, err := localvec.DefineRetriever(g, "go-menu_items", localvec.Config{
Embedder: embedder,
}, retOpts)
if err != nil {
log.Fatal(err)
}
if err := setup04(ctx, g, docStore, retriever, model); err != nil {
log.Fatal(err)
}
if err := setup05(g, model); err != nil {
log.Fatal(err)
}
<-ctx.Done()
}