Are SNS topics case sensitive?

Display names are not case sensitive, and Amazon SNS converts display names to uppercase characters. For example, if the display name of a topic is MyTopic and the message is Hello World! , the message appears as: MYTOPIC> Hello World!

How do I write a SNS topic?

Sign in to the Amazon SNS console . In the left navigation pane, choose Topics. On the Topics page, select a topic, and then choose Publish message. The console opens the Publish message to topic page.

What are some use cases for Amazon SNS?

What is a SNS topic?

An Amazon SNS topic is a logical access point that acts as a communication channel. A topic lets you group multiple endpoints (such as AWS Lambda, Amazon SQS, HTTP/S, or an email address).

What is the use case of SNS?

SNS use cases: event notification, monitoring applications, workflow systems, time-sensitive information updates. can be used in workflow systems to relay events among distributed computer applications, move data between data stores or update records in business systems.

What is AWS SNS (Simple Notification Service)? (1/13)

Which of the following features of SNS use cases?

Email notifications

Amazon SNS supports the delivery of notifications to email addresses subscribed to topics. This feature supports a variety of use cases. For example, you can use Amazon SNS to receive application alerts, as email notifications, to bring visibility into your DevOps workflows.

Can an SNS topic subscribe to another topic?

Subscriptions define how messages published to your SNS topic are handled, and you can set up multiple subscriptions for any given topic.

How many subscribers can receive a message from SNS?

Up to 10,000,000 subscriptions per topic & 100,000 topics limit. Subscribers can be: SQS. HTTP/HTTPS (with delivery retries — how many times).

What are topics and subscription in an SNS?

The entities that can subscribe to your SNS topics can be: "Everyone" (anonymous access), users whose endpoint URL, protocol, email address or ARN from a "Subscribe" request match a certain value, specific AWS users or resources and the topic owner.

What is the maximum number of topics allowed per account in SNS?

By default, SNS offers 10 million subscriptions per topic, and 100,000 topics per account.

What is difference between SNS and SQS?

In simple terms, SNS - sends messages to the subscriber using push mechanism and no need of pull. SQS - it is a message queue service used by distributed applications to exchange messages through a polling model, and can be used to decouple sending and receiving components.

Is AWS SNS asynchronous?

Several AWS services, such as Amazon Simple Storage Service (Amazon S3) and Amazon Simple Notification Service (Amazon SNS), invoke functions asynchronously to process events. When you invoke a function asynchronously, you don't wait for a response from the function code.

How do I send messages to AWS SNS?

What happens when you create a topic on Amazon SNS?

When a topic is created, Amazon SNS will assign a unique ARN (Amazon Resource Name) to the topic, which will include the service name (SNS), region, AWS ID of the user and the topic name. The ARN will be returned as part of the API call to create the topic.

What is the difference between SES and SNS in AWS?

Amazon SES belongs to "Transactional Email" category of the tech stack, while Amazon SNS can be primarily classified under "Mobile Push Messaging".

Can SNS send to Eventbridge?

Its not possible. The only valid subscriptions to a SNS topic are: For the http protocol, the (public) endpoint is a URL beginning with http://.

Can VPC subscribe to SNS topic?

To subscribe a private HTTP or HTTPS endpoint to an Amazon SNS topic, do the following: Create an Amazon Virtual Private Cloud (Amazon VPC) security group (LambdaSG) in the same Amazon VPC as the private endpoint.

Can SNS subscribe to another SNS?

First, in the SNS account, you need to add a SNS TopicPolicy to give the SQS account permission to call sns:Subscribe on the relevant topic(s). Then, in the SQS account, you need to create: A SQS QueuePolicy to allow the above SNS topic to call SQS:SendMessage against the relevant SQS queue(s).

When a subscriber subscribes to a topic in SNS What is the time period available for confirmation?

You call the ConfirmSubscription action with the token from the subscription response. Confirmation tokens are valid for three days. This action is throttled at 100 transactions per second (TPS).

Is SNS a global topic?

You can technically publish SNS topics across regions, but I would create a topic in each region you are setting up the service (e.g. Use eu-west-1 for SNS in IAM policy for EU West) and then direct all these messages from different into a single SQS queue in the home region of your choice.

Can SNS have multiple publishers?

Here multiple publishing applications can talk to multiple subscribing applications using the SNS topic as an intermediary. The advantage of this implementation is that publishers and subscribers do not need to know about each other and, as a result, SNS supports fully dynamic integration between applications.

Can SNS send email?

SNS stands for Simple Notification Service and, unsurprisingly, that's exactly what it does. Amazon SNS is about sending basic notifications that can take the form of mobile push notifications, SMS's, and even emails.

Can SNS publish to SQS?

You can publish a notification to an Amazon SNS topic with one or more subscriptions to Amazon SQS queues in another account.

Can Lambda subscribe to SNS?

You can use a Lambda function to process Amazon Simple Notification Service (Amazon SNS) notifications. Amazon SNS supports Lambda functions as a target for messages sent to a topic. You can subscribe your function to topics in the same account or in other AWS accounts.

Can an Amazon SNS topic be recreated with a previously used topic name?

Can an Amazon Simple Notification Service (Amazon SNS) topic be recreated with a previously used topic name? A. Yes. The topic name should typically be available after 24 hours after the previous topic with the same name has been deleted.