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Using Go, Python or Node.js with Scaleway Queues

AWS provides a number of SDKs (Software Development Kits) which provide language-specific APIs for AWS services, including SQS, which is the protocol Scaleway Queues is based on.

This guide provides code samples to show you how to start using these SDKs with Scaleway Queues.

Before you start

To complete the actions presented below, you must have:

Go

Connect to Queues (Go)

The following code sample shows how to connect to Scaleway Queues:

import (
  "github.com/aws/aws-sdk-go/aws"
  "github.com/aws/aws-sdk-go/aws/credentials"
  "github.com/aws/aws-sdk-go/aws/session"
  "github.com/aws/aws-sdk-go/service/sqs"
)

func main() {
  awsSession := session.Must(session.NewSession(&aws.Config{
    Region:   aws.String("fr-par"),
    Endpoint: aws.String("http://sqs.mnq.fr-par.scaleway.com"),
    Credentials: credentials.NewStaticCredentials(AwsAccessKey, AwsSecretKey, ""),
  }))

  awsSqs := sqs.New(awsSession)

  [...]
}
Note

The Endpoint for Scaleway Queues is https://sqs.mnq.fr-par.scaleway.com. For the access and secret key values, use the credentials you generated for Queues.

Once you are connected, you can use any functions available with the SDK. However, we recommend that you check they are supported by Scaleway Queues. See the official documentation for more details on using the SDK, or read on to see some examples.

Create queue (Go)

createQueueResponse, _ := awsSqs.CreateQueue(&sqs.CreateQueueInput{
  QueueName: aws.String("my-test-queue"),
})
fmt.Println(*createQueueResponse.QueueUrl)

Send messages to this queue (Go)

for i := 0; i < 10; i++ {
  _, _ = awsSqs.SendMessage(&sqs.SendMessageInput{
    MessageBody: aws.String(fmt.Sprintf("Hello World: %d", i)),
    QueueUrl:    createQueueResponse.QueueUrl,
  })
}

Receive messages from this queue (Go)

for {
  receiveMessageResponse, err := awsSqs.ReceiveMessage(&sqs.ReceiveMessageInput{
    QueueUrl: createQueueResponse.QueueUrl,
  })
  if err != nil || len(receiveMessageResponse.Messages) == 0 {
    break
  }
  for _, m := range receiveMessageResponse.Messages {
    fmt.Println(*m.Body)
  }
}

Python

Connect to Queues (Python)

The following code sample shows how to connect to Scaleway Queues using Boto3's resource(). It is also possible to use client(), but resource() is more pythonesque:

sqs = boto3.resource('sqs',
  endpoint_url=[],
  aws_access_key_id=[],
  aws_secret_access_key=[],
  region_name='fr-par')
Note

The endpoint_url for Scaleway Queues is https://sqs.mnq.fr-par.scaleway.com. For the access and secret key values, use the credentials you generated for Queues.

Once connected, you can use any functions available with the SDK - just check that they are supported by Scaleway Queues. See the official documentation for more details, or read on to see some examples.

Create queue (Python)

# Create the queue. This returns an SQS.Queue instance
queue = sqs.create_queue(QueueName='my test queue')

# You can now access identifiers and attributes
print(queue.url)
print(queue.attributes)

Send messages to this queue (Python)

for i in range (0,10):
  queue.send_message(MessageBody="Hello World: "+str(i))

Receive messages from this queue (Python)

for message in queue.receive_messages():
  print(message.body)
  message.delete()

Node.js

Connect to Scaleway Queues (NodeJS)

Here, we use the @aws-sdk/client-sqs module, which is the latest SDK available. Import the required module:

const { SQSClient, SendMessageCommand, CreateQueueCommand, ReceiveMessageCommand } = require("@aws-sdk/client-sqs");
// If you use ES6 syntax
// import  { SQSClient, SendMessageCommand, CreateQueueCommand, ReceiveMessageCommand } from "@aws-sdk/client-sqs";

The following code sample shows how to connect to Scaleway Queues:

var sqsClient = new SQSClient({
  credentials: {
    accessKeyId: SQS_ACCESS_KEY_ID,
    secretAccessKey: SQS_ACCESS_KEY
  },
  region: "par",
  endpoint: SQS_ENDPOINT,
})
Note

The endpoint_url for Scaleway Queues is https://sqs.mnq.fr-par.scaleway.com. For the access and secret key values, use the credentials you generated for Scaleway Queues.

Once connected, you can use any of the SDK's functions as long as they are supported by Scaleway Queues. Refer to AWS's official documentation for more information, or read on to see some examples.

Create queue (NodeJS)

const createQueueCommand = new CreateQueueCommand({
    QueueName: 'SQS_QUEUE_NAME',
    Attributes: {
      'MessageRetentionPeriod': '86400'
    }
  });
    
const createQueue = await sqsClient.send(createQueueCommand);
console.log(createQueue.QueueUrl);

You can find all available parameters for createQueue in the AWS documentation here.

Send messages to this queue (NodeJS)

The following code sample demonstrates how to send a message with some MessageAttributes:

const sendMessageCommand = new SendMessageCommand({
  MessageAttributes: {
    "Name": {
      DataType: "String",
      StringValue: "John"
  }},
  MessageBody: "This is a test message to John",
  QueueUrl: "SQS_QUEUE_URL"
  });
  
const sendMessage = await sqsClient.send(sendMessageCommand)
console.log("Success", sendMessage.MessageId);
});

Receive messages from this queue (NodeJS)

The following code sample shows how to read messages from a queue, and then delete them:

var queueURL= "SQS_QUEUE_URL";

const receiveMessageCommand = new ReceiveMessageCommand({
  MaxNumberOfMessages: 10,
  QueueUrl: queueURL,
  VisibilityTimeout: 20
});

const receiveMessage = await sqsClient.send(receiveMessageCommand);
console.log(receiveMessage);
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