temporalio-approval-flow

This is a quick demo of Temporal and a multiple user approval flow.

To test this demo locally, start by getting Temporal running using temporalio/docker-compose. I've forked the repo at danielhochman/docker-compose to use a database port for Postgres that doesn't conflict with the existing Clutch database port.

Commands

$ mkdir -p ~/go/src/github.com/danielhochman
$ cd ~/go/src/github.com/danielhochman
$ git clone git@github.com/danielhochman/docker-compose
$ git clone git@github.com/danielhochman/temporalio-approval-flow
$ cd docker-compose
$ docker-compose up -d
$ cd ..
$ cd temporalio-approval-flow
$ make worker-run

# In another window
$ cd ~/go/src/github.com/danielhochman/temporalio-approval-flow
$ make backend-run

# Stop docker processes
$ cd ~/go/src/github.com/danielhochman/docker-compose
$ docker-compose down

# Visit localhost:9000 for the application and localhost:8088 for the Temporal dashboard.

Concepts and Terminology (TODO)

Workflow
Activity
Signal
Selector

For more info on these concepts check out:

TODO

Implement basic approval flow with an additional notification activity.
Expand approval business logic (handling locks).
Write up details of the concepts demonstrated in this example.
Write unit tests. Testability is very important since uses of interface{} throughout the Temporal SDK mean that the compiler won't catch a lot of issues.