Go's execution engine for Serverless Workflow on Temporal.io

A small demo to execute Serverless Workflow on Temporal with inspiration and front-end code borrowed from https://github.com/tsurdilo/swtemporal

Limitations

This is a very rough implementation for demo purposes therefore a lot of Serverless Workflow features have not been even remotely touched.

Some notable limitations that are consciously aware

• Only support operation and switch states (no eventing etc.)
• Only support sequential action execution (no parallel)
• Do not support function arguments
• Switch states are described using Go template conditions

Run

1. You need a Temporal service running. See README.md for more details.

       git clone https://github.com/temporalio/docker-compose.git
       cd  docker-compose
       docker-compose -f docker-compose-cass-es.yml up

2. Run worker

       go run worker/main.go

   to start worker for dsl workflow.

3. Run editor + starter

       go run starter/main.go

4. Open localhost:3000 and add a customer info and press Run Workflow

   For rejected application

   

   The starter log

   2022/07/21 16:19:57 editor listening on :3000...
   2022/07/21 16:19:57 INFO  No logger configured for temporal client. Created default one.
   2022/07/21 16:19:57 starter listening on :8080...
   2022/07/21 16:20:11 Started workflow WorkflowID sw-localtest RunID f3e503f8-0e2e-4984-83f4-0a682b6731d6
   2022/07/21 16:20:11 Workflow result: {"RejectApplication":"true"}
   

5. To see the executed workflow goto localhost:8088