Read messages from Slack and write to topic.
In order to read messages from Slack you need to create application first. Go to Slack API and Create New App.
Next, select you app and under Settings -> select Socket Mode.
Enable Socket Mode as per message:
To start receiving payloads in Socket Mode, turn on the toggle below and call the apps.connections.open endpoint using an App Level Token to establish a connection.
After enabling socket mode, follow link to App Level Tokens, scroll down to App-Level Tokens and generate new token. Give it a name and select scope: connections:write.
Copy SOCKET_MODE_TOKEN. It will look like: xapp-1-A....
# install dependencies
npm install
# transpile TS->JS to dist/
npm run build
# make a compressed package with Sequence
si seq pack dist
# send Sequence to transform hub, this will output Sequence ID
si seq send dist.tar.gz
# start a Sequence, provide SOCKET_MODE_TOKEN as the second parameter
si seq start - <SOCKET_MODE_TOKEN>
# view messages in topic
si topic get messages