This Golang script translates a list of strings/phrases from one languages to another — using Google's translation API.

translate-list-of-strings.go

package main

import (
	"context"
	"fmt"
	"os"

	"cloud.google.com/go/translate"
	"golang.org/x/text/language"
)

// Running "go run translate-list-of-strings.go" will run this main() function.
func main() {
	ctx := context.Background()
	stringsToTranslate := []string{"Do you speak Spanish?", "Where is the bathroom?"}
	fmt.Printf("Running translateListOfStrings().\n")
	translations, err := translateListOfStrings(ctx, "es", stringsToTranslate) // "es" stands for Español/Spanish.
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error from translateText(): %s\n", err)
	} else {
		fmt.Printf("Translations: %v\n", translations)
	}
}

func translateListOfStrings(
	ctx context.Context, targetLanguage string, stringsToTranslate []string,
) ([]string, error) {
	// Get language.Tag of the target language.
	lang, err := language.Parse(targetLanguage)
	if err != nil {
		return nil, fmt.Errorf("language.Parse: %w", err)
	}

	// Create a new client for the translate API.
	fmt.Printf("Creating new client for the translate API.\n")
	client, err := translate.NewClient(ctx)
	if err != nil {
		return nil, err
	}
	defer client.Close() // Ensure the client connection is eventually closed.

	// Translate!
	fmt.Printf("Translating via Translate API...\n")
	response, err := client.Translate(ctx, stringsToTranslate, lang, nil)
	if err != nil {
		return nil, fmt.Errorf("Translate: %w", err)
	}
	if len(response) == 0 {
		return nil, fmt.Errorf("Translate returned empty response to text.\n")
	}
	translations := make([]string, len(stringsToTranslate))
	for i := 0; i < len(stringsToTranslate); i++ {
		translations[i] = response[i].Text
	}
	return translations, nil
}

To run this script:

go mod init example.com/my-temporary-module-path  # Initialize your temporary module.
go get                                            # Download dependencies.
go run translate-list-of-strings.go               # Run the script!

Learn more about Google's Translation API here.