# Running Rust on AWS Lambda. Part 2 In [previous article](https://paramako.com/running-rust-on-aws-lambda-part-1) we`ve created a simple code example of **AWS lambda** **SQS** consumer. In this one, we will learn how to configure and run it on **AWS**. This article is not about the CI/CD best practises. I just want to show you in a simple examples how to run and test your code on **AWS lambda**. Let's go! ## Create Role Firstly, we need to create a role, that will allow our lambda functions to pop data from **SQS**. Enter the **AWS console** roles web interface and click on the **Create role** button. ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659007875758/abthWf885.png align="left") Choose **AWS service** as trusted entity and **lambdas** as a common use case, then click on the **Next** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659008182066/KVH5s0BXI.png align="left") Attach **AWSLambdaSQSQueueExecutionRole** policy to your new role and click on the **Next** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659008600624/rLrIJY9tO.png align="left") Name your role as **TestRustLambdaRole** ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659008703274/ap9hJrlhm.png align="left") Click on the **Create Role** button. ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659008753399/eu_omrIjE.png align="left") Perfect! Our new role is created successfully! ## Create AWS lambda function Enter the **AWS console** lambdas web interface and click on the **Create function** button. ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659007652081/a84ZULHV-.png align="left") Then just fill in the **Basic information** block this way ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659007738461/07BYn5wNB.png align="left") Choose **TestRustLambdaRole** as a execution role of our lambda function ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659009195250/QZgDp9xDi.png align="left") Click on **Create function** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659009234929/R9vDy7-rG.png align="left") ## Test AWS lambda ### Build and deploy Firstly, we need to build our code. Everything we need is to run this command ```bash cargo lambda build --release --bin rust-lambda-example --arm64 --output-format zip ``` Our compiled binary will be stored in path: `target/lambda/rust-lambda-example`. Then in your new lambda function web interface go to the **Code** section and click on `Upload from -> .zip file` and upload our binary ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659010268580/gbekduaek.png align="left") ### Test in AWS console Now we need to create a test event. Go to the **Test** section, and name our new test event ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659010558537/nvUkUgWT9.png align="left") Then add the SQS event sample below to Event JSON block ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659010742507/40YD962UG.png align="left") and click on the **Save** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659010786228/7X8gBMfck.png align="left") ```json { "Records": [ { "messageId" : "MessageID_1", "receiptHandle" : "MessageReceiptHandle", "body" : "Hello from message 1!", "md5OfBody" : "fce0ea8dd236ccb3ed9b37dae260836f", "md5OfMessageAttributes" : "582c92c5c5b6ac403040a4f3ab3115c9", "eventSourceARN": "arn:aws:sqs:us-west-2:123456789012:SQSQueue", "eventSource": "aws:sqs", "awsRegion": "us-west-2", "attributes" : { "ApproximateReceiveCount" : "2", "SentTimestamp" : "1520621625029", "SenderId" : "AROAIWPX5BD2BHG722MW4:sender", "ApproximateFirstReceiveTimestamp" : "1520621634884" }, "messageAttributes" : { "Attribute3" : { "binaryValue" : "MTEwMA==", "stringListValues" : ["abc", "123"], "binaryListValues" : ["MA==", "MQ==", "MA=="], "dataType" : "Binary" }, "Attribute2" : { "stringValue" : "123", "stringListValues" : [ ], "binaryListValues" : ["MQ==", "MA=="], "dataType" : "Number" }, "Attribute1" : { "stringValue" : "AttributeValue1", "stringListValues" : [ ], "binaryListValues" : [ ], "dataType" : "String" } } }, { "messageId" : "MessageID_2", "receiptHandle" : "MessageReceiptHandle", "body" : "Hello from message 2!", "md5OfBody" : "fce0ea8dd236ccb3ed9b37dae260836f", "md5OfMessageAttributes" : "582c92c5c5b6ac403040a4f3ab3115c9", "eventSourceARN": "arn:aws:sqs:us-west-2:123456789012:SQSQueue", "eventSource": "aws:sqs", "awsRegion": "us-west-2", "attributes" : { "ApproximateReceiveCount" : "2", "SentTimestamp" : "1520621625029", "SenderId" : "AROAIWPX5BD2BHG722MW4:sender", "ApproximateFirstReceiveTimestamp" : "1520621634884" }, "messageAttributes" : { "Attribute3" : { "binaryValue" : "MTEwMA==", "stringListValues" : ["abc", "123"], "binaryListValues" : ["MA==", "MQ==", "MA=="], "dataType" : "Binary" }, "Attribute2" : { "stringValue" : "123", "stringListValues" : [ ], "binaryListValues" : ["MQ==", "MA=="], "dataType" : "Number" }, "Attribute1" : { "stringValue" : "AttributeValue1", "stringListValues" : [ ], "binaryListValues" : [ ], "dataType" : "String" } } } ] } ``` The next thing we should do to make the code from previous article work is to add environment variable ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659010910118/yjdkahCen.png align="left") After that let's move back to **Code** section. Here just choose our new test event and click on the **Test** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011008860/vtLu8O6f5.png align="left") As you can see, the output is the same as in local test from a first article. Our lambda is working! ```bash Function Logs START RequestId: 56cbfd84-3601-4c13-9da6-84b94aed972a Version: $LATEST test Hello from message 1! Hello from message 2! END RequestId: 56cbfd84-3601-4c13-9da6-84b94aed972a REPORT RequestId: 56cbfd84-3601-4c13-9da6-84b94aed972a Duration: 0.99 ms Billed Duration: 19 ms Memory Size: 128 MB Max Memory Used: 13 MB Init Duration: 17.17 ms ``` ## Connect lambda with SQS events Create SQS queue with default settings by filling in the name ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011483428/Z5RhibSWM.png align="left") and pressing **Create queue** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011679605/WtpqBZtKN.png align="left") Next, go back to your lambda function interface and add a new trigger ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011822889/EF940N1L8.png align="left") Select **SQS** as a source ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011904018/0BJ846LiC.png align="left") and our new created queue ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659011940803/hlPDaXB37.png align="left") Then add this trigger to our lambda function ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012043982/DX8Ez9LzC.png align="left") To test that everything works as expected let's decrease trigger batch size to 1 ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012397639/JPRVk2Npr.png align="left") and then move back to your SQS web interface and click on **send and receive messages** button ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012434539/x-SbgV0lz.png align="left") And push a test message to the queue ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012267836/3EoFw3peS.png align="left") Then go to the **Monitor** -> **logs** section in your lambda function interface ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012511866/xAGbE_jSl.png align="left") Here you can see that our lambda handled the new message ![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659012542422/pGcvY-nCc.png align="left")