AWS Lambda Go S3 Presigned

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Generates a presigned URL for the linked S3 bucket in a Go Lambda function.

Configure the S3 Client and the PresignedClient.

main.go

cfg, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
   panic(err)
}

client := s3.NewFromConfig(cfg)
presignedClient := s3.NewPresignClient(client)

Generate the presigned URL.

main.go

bucketName, err := resource.Get("Bucket", "name")
if err != nil {
  panic(err)
}
url, err := presignedClient.PresignPutObject(context.TODO(), &s3.PutObjectInput{
  Bucket: aws.String(bucket.(string)),
  Key:    aws.String(key),
})

sst.config.ts

const bucket = new sst.aws.Bucket("Bucket");

const api = new sst.aws.ApiGatewayV2("Api");

api.route("GET /upload-url", {
  handler: "src/",
  runtime: "go",
  link: [bucket],
});

View the full example.