main.go•2.3 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
// This sample shows how to upload a file to Gemini Files API and use it directly with Genkit.
//
// Usage:
// 1. Set GEMINI_API_KEY environment variable
// 2. Run: go run main.go
package main
import (
"context"
"fmt"
"log"
"os"
"github.com/firebase/genkit/go/ai"
"github.com/firebase/genkit/go/genkit"
"github.com/firebase/genkit/go/plugins/googlegenai"
"google.golang.org/genai"
)
func main() {
ctx := context.Background()
// Initialize Genkit
g := genkit.Init(ctx, genkit.WithPlugins(&googlegenai.GoogleAI{}))
// Create Files API client
client, err := genai.NewClient(ctx, &genai.ClientConfig{
Backend: genai.BackendGeminiAPI,
APIKey: os.Getenv("GEMINI_API_KEY"),
})
if err != nil {
log.Fatal("Failed to create client:", err)
}
// Upload image to Files API
fmt.Println("Uploading image to Files API...")
file, err := client.Files.UploadFromPath(ctx, "test.jpg", &genai.UploadFileConfig{
MIMEType: "image/jpeg",
DisplayName: "Test Image",
})
if err != nil {
log.Fatal("Failed to upload:", err)
}
fmt.Printf("Uploaded! File URI: %s\n", file.URI)
// Use Files API URI directly with Genkit (now supported!)
fmt.Println("Analyzing image with Genkit using Files API URI...")
resp, err := genkit.Generate(ctx, g,
ai.WithModelName("googleai/gemini-2.0-flash"),
ai.WithMessages(
ai.NewUserMessage(
ai.NewTextPart("What do you see in this image?"),
ai.NewMediaPart("image/jpeg", file.URI),
),
),
)
if err != nil {
log.Fatal("Failed to analyze:", err)
}
fmt.Printf("Analysis: %s\n", resp.Text())
// Clean up
client.Files.Delete(ctx, file.Name, nil)
fmt.Println("Cleaned up uploaded file")
}
