making_serving_request.py

def make_serving_request(image_batch):
    data = json.dumps({"signature_name": "serving_default",
                       "instances": image_batch.tolist()})

    headers = {"content-type": "application/json"}

    os.environ['NO_PROXY'] = 'localhost'
    json_response = requests.post(
        'http://localhost:8501/v1/models/flower_classifier:predict', data=data, headers=headers)

    predictions = json.loads(json_response.text)['predictions']

    return predictions