Added task worker service and example task processor.

worker/tasks/example.go

@@ -0,0 +1,22 @@
+package tasks
+
+import (
+	"context"
+	"log"
+
+	"github.com/hibiken/asynq"
+)
+
+// TypeExample is the type for the example task.
+// This is what is passed in to TaskClient.New() when creating a new task
+const TypeExample = "example_task"
+
+// ExampleProcessor processes example tasks
+type ExampleProcessor struct {
+}
+
+// ProcessTask handles the processing of the task
+func (p *ExampleProcessor) ProcessTask(ctx context.Context, t *asynq.Task) error {
+	log.Printf("executing task: %s", t.Type())
+	return nil
+}