snssqs

SQS SNS Broker Plugin for go-micro

Amazon Simple Notification Service and Simple Queue Service broker plugin for go-micro allows you to publish to SNS and subscribe messages brokered by SQS. This plugin does not (yet) support automatic creation of SQS queues or SNS topics so those will have to exist in your infrastructure before attempting to send/receive.

AWS Credentials

This plugin uses the official Go SDK for AWS. As such, it will obtain AWS credentials the same way all other aws-go-sdk applications do. The plugin explicitly allows the use of the shared credentials file to make development on workstations easier, but you can also supply the usual AWS_* environment variables in dev/test/prod environments. Also if you're deploying in EC2/ECS, the IAM Role will be picked up automatically and you won't need to supply any credentials.

Publishing and Subscribing

Publishing and subscribing with the plugin should work just like all other brokers. Simply supply the name of the queue in the publish or subscribe arguments:

broker.Publish("my_topic", msg)
...
broker.Subscribe("queue", subscriberFunc)

You will need to supply the AWS_REGION environment variable to configure the region (in addition to credentials as above).

Because SNS can't deliver to FIFO queues, you cannot subscribe to a FIFO queue using this broker.

Options

If you're using a regular (non-fifo) queue you should be able to get by without having to supply any special options. However, if you need to specify a group identifier for a message or a de-duplication identifier, then you'll have to specify a generator function for those.

This plugin is under active development and will likely get more configurable options and features in the near future.