Cloud Functions : fonction de message d'accueil

Cet exemple montre comment créer une fonction Cloud qui accepte en entrée un prénom et un nom, et renvoie un message d'accueil personnalisé.

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 System.Text.Json.Serialization;
using System.Threading;
using System.Threading.Tasks;

namespace Greeting;

public class Function : ITypedFunction<GreetingRequest, GreetingResponse>
{
    public Task<GreetingResponse> HandleAsync(GreetingRequest request, CancellationToken cancellationToken) =>
        Task.FromResult(new GreetingResponse
        {
            Message = $"Hello {request.FirstName} {request.LastName}!",
        });
}

public class GreetingRequest
{
    [JsonPropertyName("first_name")]
    public string FirstName { get; set; }

    [JsonPropertyName("last_name")]
    public string LastName { get; set; }
}

public class GreetingResponse
{
    [JsonPropertyName("message")]
    public string Message { get; set; }
}

Go


// Package greeting provides a set of Cloud Functions samples.
package greeting

import (
	"fmt"

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

func init() {
	functions.Typed("Greeting", greeting)
}

// greeting is a Typed Cloud Function.
func greeting(request *GreetingRequest) (*GreetingResponse, error) {
	return &GreetingResponse{
		Message: fmt.Sprintf("Hello %v %v!", request.FirstName, request.LastName),
	}, nil
}

type GreetingRequest struct {
	FirstName string `json:"first_name"`
	LastName  string `json:"last_name"`
}

type GreetingResponse struct {
	Message string `json:"message"`
}

Java

import com.google.cloud.functions.TypedFunction;
import com.google.gson.annotations.SerializedName;

public class Greeting implements TypedFunction<GreetingRequest, GreetingResponse> {
  @Override
  public GreetingResponse apply(GreetingRequest request) throws Exception {
    GreetingResponse response = new GreetingResponse();
    response.message = String.format("Hello %s %s!", request.firstName, request.lastName);
    return response;
  }
}

Node.js

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

functions.typed('greeting', req => {
  return {
    message: `Hello ${req.first_name} ${req.last_name}!`,
  };
});

PHP


use Google\CloudFunctions\FunctionsFramework;

class GreetingRequest
{
    /** @var string */
    public $first_name;

    /** @var string */
    public $last_name;

    public function __construct(string $first_name = '', string $last_name = '')
    {
        $this->first_name = $first_name;
        $this->last_name = $last_name;
    }

    public function serializeToJsonString(): string
    {
        return json_encode([
            'first_name' => $this->first_name,
            'last_name' => $this->last_name,
        ]);
    }

    public function mergeFromJsonString(string $body): void
    {
        $obj = json_decode($body);
        $this->first_name = $obj['first_name'];
        $this->last_name = $obj['last_name'];
    }
}

class GreetingResponse
{
    /** @var string */
    public $message;

    public function __construct(string $message = '')
    {
        $this->message = $message;
    }

    public function serializeToJsonString(): string
    {
        return json_encode([
            'message' => $message,
        ]);
    }

    public function mergeFromJsonString(string $body): void
    {
        $obj = json_decode($body);
        $this->message = $obj['message'];
    }
};

function greeting(GreetingRequest $req): GreetingResponse
{
    return new GreetingResponse("Hello $req->first_name $req->last_name!");
};

FunctionsFramework::typed('greeting', 'greeting');

Python

from dataclasses import dataclass

import functions_framework


@dataclass
class GreetingRequest:
    first_name: str
    last_name: str

    # Required to deserialize the request
    @staticmethod
    def from_dict(req: dict) -> "GreetingRequest":
        return GreetingRequest(
            first_name=req["first_name"],
            last_name=req["last_name"],
        )


@dataclass
class GreetingResponse:
    message: str

    # Required to serialize the response
    def to_dict(self) -> dict:
        return {
            "message": self.message,
        }


@functions_framework.typed
def greeting(req: GreetingRequest):
    return GreetingResponse(message=f"Hello {req.first_name} {req.last_name}!")

Ruby

require "functions_framework"

FunctionsFramework.typed "greeting" do |req|
  {
    message: "Hello #{req['first_name']} #{req['last_name']}!"
  }
end

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