your function to read from Amazon SQS in the Lambda console, create an SQS trigger. But because of how I'm planning this system, that would add a lot of complexity that I would love to try to avoid. Use a Lambda function to process messages from an Amazon SQS queue. I also know that I could just limit it on the other side, by limiting the number of items I put in the queue at a time (or per day). But this section doesn't seem to address the 100 times per day limit, or the 1 second delay between running the next function. Amazon Alexa Skill An Alexa skill points to a Lambda function and based on what voice command is issued depends on what message is added to SQS queue. Enter the queue name, select the Enable trigger checkbox, and. In the Trigger configuration dropdown, select SQS. To do this, follow the steps given below: Go to the AWS Lambda function created in step 5 and click on the + Add trigger button. Specifically the "Function Level Concurrent Execution Limit" section. This trigger will process the message and delete it from the queue after its successful processing. You can leave the Batch Size as 10 this setting indicates to AWS Lambda the maximum number of messages you would like to receive in a single Lambda invocation. Next, click the queue that you just created in Step 2. I have looked into AWS Lambda Managing Concurrency. Adding a SQS Trigger to our Lambda Function. This will only trigger one concurrent lambda function, no matter how many records are in the queue. That function on trigger than pulls n records from the queue, processes them, and then ends. Setup a event bridge cron trigger for the function. This type of control would allow me to directly map the function to the DynamoDB table limits to ensure I'm not going over capacity, and to I comply with any API rate limits. Rather than having the lambda triggered by the SQS queue. It would also be nice to throttle it, to where it will only have a maximum of 5 concurrent actions being run at once, with a 1 second delay between running again. In order to manage costs, and stay in control of this process I'm wanting to throttle the amount of times this Lambda function gets called in a certain period of time.įor example, I want this function to be run a maximum of 100 times per day, in order to not overwhelm the DynamoDB table capacity or the API endpoint. One step of processing is going to be hitting an API endpoint to get some data back for every item added to the queue, then storing that away in an DynamoDB table. I have an AWS SQS queue that I'm going to setup with a Lambda function trigger to run the Lambda function for every item that gets added to the queue to do some processing work.
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