How to set a custom Workflow Id in Go
Create an instance of StartWorkflowOptions from the go.temporal.io/sdk/client package, set the ID field, and pass the instance to the ExecuteWorkflow call.
- Type: string
- Default: System generated UUID
workflowOptions := client.StartWorkflowOptions{
  // ...
  ID: "Your-Custom-Workflow-Id",
  // ...
}
workflowRun, err := c.ExecuteWorkflow(context.Background(), workflowOptions, YourWorkflowDefinition)
if err != nil {
  // ...
}