Presence Setter

Presence setter is a quick and dirty lambda function that will change your presence in Slack on a schedule. Its the same as remembering to manually set your status to away.

Prerequisites

You'll need;

• AWS Account
• Ability to create a Slack App
• Serverless installed

Quick Tour

serverless.yaml is the definition of the infrastructure you want to deploy - this is going to be a Lambda function an and event bridge with 2 rules configured using cron.

Set the times you want to toggle the status and trigger the lambda.

handler.py is a quick and dirty lambda that will read the status of your Slack Presence and then change to either auto or away depending on the current setting.

Note: This is a bit blunt and will be refined to take into account the time etc to set the correct intended status.

Using it

Slack

Create a Slack App then you need to give the User Token the required scope - this is done going to OAuth and Permission

and setting the User Tokens Scope to;

- dnd:read
- dnd:write
- users:write
- users:read

The dnd:* permissions allow the Do Not Disturb setting and ending and the users:* permissions allow for reading and updating your status

Install the app in your workspace and it's ready to go

Serverless

I've not user Serverless before, more than anything else, this was an exercise in playing with it.

install the CLI

npm i -g serverless

AWS

Create some credentials to deploy with, you're going to need them when running Serverless. Either do aws configure to set up ~/.aws/credentials or export the creds to the shell env but you need them for Serverless to access.

Now you can run

export SLACK_API_KEY=<provide your Slack token here>

serverless deploy

Which will create the Lambda function and the Event bridge...

Testing it out

You can test the lambda using the aws cli

aws lambda invoke --function-name presence-setter-dev-function response.json

this should change your status and return with a 200