@ray.remote
def issue_request(user_id):
    r = requests.post(url , json, headers)

 ray.get([issue_request.remote(id_token[user_id], 1) for _ in range(500)])

def issue_request(user_id):
    r = requests.post(url , json, headers)

jobs = []
for i in range(500):
    process = multiprocessing.Process(target=issue_request,
                                  args=(admin_id))
jobs.append(process)
for j in jobs:
    j.start()

# Ensure all of the processes have finished
for j in jobs:
    j.join()