Bloblang

Default workflow IDs, update IDs, and search attributes can be defined using Bloblang expressions via the ${!<expression>} interpolation syntax. The expression is evaluated against the protojson serialized input, allowing it to leverage fields from the input parameter, as well as Bloblang's native functions and methods.

Example

example.proto
syntax="proto3"

package example.v1;

import "google/protobuf/empty.proto";
import "temporal/v1/temporal.proto";

service Example {
  rpc SayGreeting(SayGreetingRequest) returns (google.protobuf.Empty) {
    option (temporal.v1.workflow) = {
      id: 'say-greeting/${! greeting.or("hello").capitalize() }/${! subject.or("world").capitalize() }/${! uuid_v4() }'
    };
  }
}

message SayGreetingRequest {
  string greeting = 1;
  string subject = 2;
}

main.go
c, _ := client.Dial(client.Options{})
example := examplev1.NewClient(c)

run, _ := example.ExecuteSayGreeting(context.Background(), &examplev1.SayGreetingRequest{})
require.Regexp(`^say-greeting/Hello/World/[a-f0-9-]{32}$`, run.ID())

run, _ := example.ExecuteSayGreeting(context.Background(), &examplev1.SayGreetingRequest{
    Greeting: "howdy",
    Subject: "stranger",
})
require.Regexp(`^say-greeting/Howdy/Stranger/[a-f0-9-]{32}$`, run.ID())

Example​

Example