Slack Bot SMS Reminders

This project is primarily an experiment and learning tool for playing with slack bots and AWS Lambda. Please do not actually use this, it's just not that good :-)

Setup

1. Create a new app at https://api.slack.com
2. If you do not already have a Nexmo account, register for one at https://www.nexmo.com
3. Copy aws.env.example to aws.env
4. Edit aws.env and populate with appropriate values
5. Make sure you have Docker and Docker Compose installed
6. Run make deploy - This will compile the Go binaries and run serverless deploy to create an API Gateway and deploy the functions to Lambda
7. From the output, copy the endpoint, something like https://1j876uqzle.execute-api.us-east-1.amazonaws.com/dev/sms
8. In your Slack App configuration, add a Slash command for /sms and paste in the endpoint url you just copied.
9. Install the app into a Slack workspace you have permission to do so in
10. Test the integration by typing in /sms [yourphonenumber] 1m your message and you should get a response telling you when it was scheduled for and then in that much time you should also receive the text message. Note that if you are using a free trial Nexmo account you wont be able to text any numbers than the one you registered with.
11. To destroy all the provisioned AWS resources run make destroy

About

This app was created as a demo for a presentation given to the Charlotte Golang Meetup group in August 2018. The slides for that talk are available at https://bit.ly/golang-clt-serverless