I have a message I am reading off an sqs queue. If the operation I am performing succeeds I delete the message from the queue.
But if the operation fails I was thinking of enriching the message on the queue to have some extra information about the failure.
Is enriching a message on the queue (between reading and deleting) possible using sqs?
No. It is not possible to update/modify a message in the queue.
Each time a message is retrieved, it increments the
ApproximateReceiveCount (the number of times a message has been received from the queue but not deleted), but otherwise the message cannot be modified.
Instead, you could store supplemental information in a database (eg DynamoDB) indexed by
MessageId, and retrieve that information when processing a message.
Getting Started With Amazon SQS in java | amazon SQS tutorial | Create SQS Message Producer | How to send a message through SQS in java
Hello and namaste everyone,
Today, we are working on the next step for setup the amazon SQS tutorial, where we will learn today that how to send messages through the SQS client.
We will create the SQS message producer in java and then in the next part, we will consume this message using consumer and convert the whole code in the application project.
Amazon Simple Queue Service (Amazon SQS) offers a secure, durable, and available hosted queue that lets you integrate and decouple distributed software systems and components.
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A queue is a linear data structure that follows the First In First Out (FIFO) principle. That means the first element that is added to the queue is the first one to be removed. It has similarities to stack. Often queue and stack are studied together. But to keep things simple and short I decided to write two separate articles on them. Here is my article on how to create a stack in Python:
But in this article, we will learn how to create a queue. Let’s get started!
#data-structures #queue #computer-science #python #how to create a queue in python #a queue in python
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To begin, I’ll give you a quick intro into the background of why you use a messaging service. Then I’ll show you an example in Python about how to set up a simple SNS Topic, publish a message, set up an SQS Queue, subscribe to the SNS Topic and read a message consumed by the SQS Queue…so not much…
When you have a microservice infrastructure some of those services may need to communicate with each other. You might have some data that is produced in one service and needs further processing in another; but you need to maintain tracking of the data and make sure it stays safe until it has been processed.
This is where a messaging service comes to help.
Using a messaging service provides a consistent structure for communication between your services. This structure can be adopted across your infrastructure for easy, manageable messaging.
For some services you may produce several messages that need to be consumed by another service. In this instance you might want to set up a queue.
For large data streams, messaging services can be scaled. As long as your data is not coupled, it can be processed in parallel.
#message-queue #aws #python #messaging #microservices