codecserver

README

xns

An example showcasing use of binary protobuf encoding alongside a codec server in order to support automatic UI decoding

Getting Started

1. Start the codec server

   go run examples/codecserver/main.go codec
   

2. In a different terminal, start temporal using the codec server

   temporal server start-dev \
       --dynamic-config-value "frontend.enableUpdateWorkflowExecution=true" \
       --dynamic-config-value "frontend.enableUpdateWorkflowExecutionAsyncAccepted=true" \
       --ui-codec-endpoint http://localhost:8080
   

3. In a different terminal, run the worker

   go run examples/codecserver/main.go worker
   

4. In a different terminal, execute a workflow, signal, query, and update

   # execute a workflow in the background
   go run examples/codecserver/main.go create-foo --name test -d
   
   # signal the workflow
   go run examples/codecserver/main.go set-foo-progress -w create-foo/test --progress 5.7
   
   # query the workflow
   go run examples/codecserver/main.go get-foo-progress -w create-foo/test
   
   # update the workflow
   go run examples/codecserver/main.go update-foo-progress -w create-foo/test --progress 100
   

5. In the UI, switch to the JSON tab and disable the Decode Event History toggle and verify that all payloads have metadata with "encoding": "YmluYXJ5L3Byb3RvYnVm", which is binary/protobuf base64-encoded