A go1.18 wrapper to provide a generics based API for Temporal.
This module is strictly a thought experiment and is unlikely to be maintained. Please don't develop dependencies on it.
This compiles, but will error at runtime:
package helloworld
import (
"context"
"go.temporal.io/sdk/workflow"
)
func Workflow(ctx workflow.Context) (string, error) {
var result string
// The activity should be passed a string, not an integer.
err := workflow.ExecuteActivity(ctx, Activity, 42).Get(ctx, &result)
if err != nil {
return "", err
}
return result, nil
}
func Activity(ctx context.Context, name string) (string, error) {
return "Hello " + name + "!", nil
}This will fail to compile with a human readable error:
helloworld.go:11:55: cannot use 42 (untyped int constant) as string value in argument to workflow.NewActivityClient(Activity).Run
The code to get the activity's return value can also now be more terse.
package helloworld
import (
"context"
"github.com/jlegrone/temporal-sdk-go-generics/workflow"
)
func Workflow(ctx workflow.Context) (string, error) {
// The activity should be passed a string, not an integer.
return workflow.NewActivityClient(Activity).Run(ctx, 42)
}
func Activity(ctx context.Context, name string) (string, error) {
return "Hello " + name + "!", nil
}