Cloud Functions a été renommé Cloud Run Functions. Pour en savoir plus, consultez l'article de blog sur Cloud Run Functions.

Système de fichiers

Cette page montre comment accéder au système de fichiers d'une instance Cloud Functions.

Exemple de code

C#

Pour vous authentifier auprès de Cloud Run Functions, configurez le service Identifiants par défaut de l'application. Pour en savoir plus, consultez Configurer l'authentification pour un environnement de développement local.

using Google.Cloud.Functions.Framework;
using Microsoft.AspNetCore.Http;
using System.IO;
using System.Threading.Tasks;

namespace FileSystem;

public class Function : IHttpFunction
{
    public async Task HandleAsync(HttpContext context)
    {
        string[] files = Directory.GetFiles(".");

        await context.Response.WriteAsync("Files:\n", context.RequestAborted);
        foreach (string file in files)
        {
            await context.Response.WriteAsync($"\t{file}\n", context.RequestAborted);
        }
    }
}

Go


// Package tips contains tips for writing Cloud Functions in Go.
package tips

import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

	"github.com/GoogleCloudPlatform/functions-framework-go/functions"
)

func init() {
	functions.HTTP("ListFiles", ListFiles)
}

// ListFiles lists the files in the current directory.
// Uses directory "serverless_function_source_code" as defined in the Go
// Functions Framework Buildpack.
// See https://github.com/GoogleCloudPlatform/buildpacks/blob/56eaad4dfe6c7bd0ecc4a175de030d2cfab9ae1c/cmd/go/functions_framework/main.go#L38.
func ListFiles(w http.ResponseWriter, r *http.Request) {
	files, err := ioutil.ReadDir("./serverless_function_source_code")
	if err != nil {
		http.Error(w, "Unable to read files", http.StatusInternalServerError)
		log.Printf("ioutil.ListFiles: %v", err)
		return
	}
	fmt.Fprintln(w, "Files:")
	for _, f := range files {
		fmt.Fprintf(w, "\t%v\n", f.Name())
	}
}

Java


import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

public class FileSystem implements HttpFunction {

  // Lists the files in the current directory.
  @Override
  public void service(HttpRequest request, HttpResponse response)
      throws IOException {
    File currentDirectory = new File(".");
    File[] files = currentDirectory.listFiles();
    PrintWriter writer = new PrintWriter(response.getWriter());
    writer.println("Files:");
    for (File f : files) {
      writer.printf("\t%s%n", f.getName());
    }
  }
}

Node.js

const fs = require('fs');
const functions = require('@google-cloud/functions-framework');

/**
 * HTTP Cloud Function that lists files in the function directory
 *
 * @param {Object} req Cloud Function request context.
 * @param {Object} res Cloud Function response context.
 */
functions.http('listFiles', (req, res) => {
  fs.readdir(__dirname, (err, files) => {
    if (err) {
      console.error(err);
      res.sendStatus(500);
    } else {
      console.log('Files', files);
      res.sendStatus(200);
    }
  });
});

PHP


use Psr\Http\Message\ServerRequestInterface;

function listFiles(ServerRequestInterface $request): string
{
    $contents = scandir(__DIR__);

    $output = 'Files:' . PHP_EOL;

    foreach ($contents as $file) {
        $output .= "\t" . $file . PHP_EOL;
    }

    return $output;
}

Python

import functions_framework


@functions_framework.http
def list_files(request):
    import os
    from os import path

    root = path.dirname(path.abspath(__file__))
    children = os.listdir(root)
    files = [c for c in children if path.isfile(path.join(root, c))]
    return f"Files: {files}"

Ruby

require "functions_framework"

FunctionsFramework.http "concepts_filesystem" do |_request|
  files = Dir.entries "."
  "Files: #{files.join "\n"}"
end

Étapes suivantes

Pour rechercher et filtrer des exemples de code pour d'autres produits Google Cloud, consultez l'explorateur d'exemples Google Cloud.