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Using Go, Python or NodeJS with SQS
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Using Go, Python or NodeJS with SQS

Reviewed on 17 July 2023Published on 04 January 2023

AWS provides a number of SDKs (Software Development Kits) which provide language-specific APIs for AWS services, including SQS.

This guide provides code samples to show you how to start using these SDKs with your Scaleway Messaging SQS/SNS namespace, specifically with SQS.

Security & Identity (IAM):

You may need certain IAM permissions to carry out some actions described on this page. This means:

  • you are the Owner of the Scaleway Organization in which the actions will be carried out, or
  • you are an IAM user of the Organization, with a policy granting you the necessary permission sets
Requirements:

Go

Connect to SQS (Go)

The following code sample shows how to connect to SQS:

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-sns.mnq.fr-par.scw.cloud"),
Credentials: credentials.NewStaticCredentials(AwsAccessKey, AwsSecretKey, ""),
}))
awsSqs := sqs.New(awsSession)
[...]
}
Note:

The Endpoint for Scaleway Messaging and Queuing is https://sqs-sns.mnq.fr-par.scw.cloud. For the access and secret key values, use the credentials you generated for your SQS/SNS namespace.

Once you are connected to the SQS service, you can use any functions available with the SDK. However, we recommend that you check they are supported by Scaleway Messaging and Queuing. 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 SQS (Python)

The following code sample shows how to connect to SQS 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 Messaging and Queuing is https://sqs-sns.mnq.fr-par.scw.cloud. For the access and secret key values, use the credentials you generated for your SQS/SNS namespace.

Once connected to the SQS service, you can use any functions available with the SDK - just check that they’re supported by Scaleway Messaging and Queuing. 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()

NodeJS

Connect to SQS (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 SQS:

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 Messaging and Queuing is https://sqs-sns.mnq.fr-par.scw.cloud. For the access and secret key values, use the credentials you generated for your SQS/SNS namespace.

Once connected to the SQS service, you can use any of the SDK’s functions as long as they’re supported by Scaleway Messaging and Queuing. 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);