Amazon Web Services

Amazon Web Services (AWS)

Troubleshooting

Amazon Cloudwatch Logs Insights

See below some very basic query examples regarding analyzing log data with Cloudwatch Logs Insights:

fields @timestamp, message.body.name 
| filter message.uri like "/v2/event/custom" and message.body.name like "Any name" 
| sort @timestamp desc 
| limit 20

fields @timestamp, @message 
| filter @logStream = "svc-markets/svc-markets/d9b5df0e43c24fd1be651ea965a748df" and level = 50 
| sort @timestamp desc 
| limit 20

Testing

Using Localstack

Read this good cheetsheet about Localstack

Using aws client

Create account profile

You will need an AWS Access Key ID and an AWS Secret Access Key:

aws --profile protec configure

Retrieve all users from a Cognito User Pool

aws --profile protec cognito-idp list-users --user-pool-id <USER_POOL_ID>

Amazon Simple Queue Service (SQS)

Send Message

Without message-group id:

aws --endpoint-url=http://localhost:4566 sqs send-message --queue-url http://localstack:4566/queue/<QUEUE_NAME> --region us-east-1 --message-body 'Test Message!'

With message-group id:

aws --endpoint-url=http://localhost:4566 sqs send-message --queue-url http://localstack:4566/queue/<QUEUE_NAME> --region us-east-1 --message-group-id <message-group-id> --message-body 'Test Message!'

Receive Message

aws sqs receive-message --queue-url https://sqs.eu-west-1.amazonaws.com/111964576194/<QUEUE_NAME> --region eu-west-1 --wait-time-seconds 999

Amazon Simple Notification Service(SNS)

Subscribe to a topic

Subscribe to topic by email. In order to receive an email every time a notification message is received.

aws --endpoint-url=http://localhost:4566 sns subscribe --topic-arn arn:aws:sns:us-east-1:000000000000:<TOPIC_NAME> --region us-east-1 --protocol email 
    --notification-endpoint <email-address>

Subscribe to topic by providing an https/http endpoint, in order to receive requests in provided endpoint every time a notification message is received. For testing purposes, I strongly recommend to setup the mocked URL with Pipedream

aws --endpoint-url=http://localhost:4566 sns subscribe --topic-arn arn:aws:sns:us-east-1:000000000000:<TOPIC_NAME> --region us-east-1 --protocol https --notification-endpoint <URL>

Confirm subscription

Subscriptions must be confirmed, so initial message will contain a confirmation token that must be sent to AWS in order to enable subscription.

aws sns confirm-subscription --endpoint-url http://localhost:4566 --topic-arn "arn:aws:sns:us-east-1:000000000000:<TOPIC_NAME>" --region us-east-1 --token <confirmation-token>

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