[英]403 permission denied to access AutoML from PubSub
我正在尝试使用Python
使用Google Cloud Platform AutoML
构建应用程序。 我的整体代码流程如下所示:
用户交互--> 发送到 PubSub 的数据--> 回调调用我的 AutoML--> 结果
调用pubsub
的代码片段如下所示:
blob=blob+bytes(doc_type,'utf-8')
publisher.publish(topic,blob)
future=subscriber.subscribe(subscription,callback=callback)
#flash("The object is "+future,'info')
try:
future.result()
except Exception as ex:
subscriber.close()
在PubSub
回调中:
def callback(message):
new_message=message.data
display_name,score=predict_value(new_message,"modelID","projectid",'us-central1')
message.ack()
我的predict_value
获取model_id
、 project id
和计算region
并执行预测。
当我不使用PubSub
直接调用predict_value
,它工作正常。 如果我这样做,我会收到以下错误:
google.api_core.exceptions.PermissionDenied: 403 Permission 'automl.models.predict' denied on resource 'projects/projectID/locations/us-central1/models/' (or it may not exist).
请帮我解决问题
非常感谢您的所有回复。 我刚刚使用下面的代码片段示例解决了这个问题
def receive_messages_synchronously(project, subscription_name):
"""Pulling messages synchronously."""
# [START pubsub_subscriber_sync_pull]
# project = "Your Google Cloud Project ID"
# subscription_name = "Your Pubsub subscription name"
subscriber = pubsub_v1.SubscriberClient()
subscription_path = subscriber.subscription_path(
project, subscription_name)
# Builds a pull request with a specific number of messages to return.
# `return_immediately` is set to False so that the system waits (for a
# bounded amount of time) until at lease one message is available.
response = subscriber.pull(
subscription_path,
max_messages=3,
return_immediately=False)
ack_ids = []
for received_message in response.received_messages:
print("Received: {}".format(received_message.message.data))
ack_ids.append(received_message.ack_id)
# Acknowledges the received messages so they will not be sent again.
subscriber.acknowledge(subscription_path, ack_ids)
# [END pubsub_subscriber_sync_pull]
原因是创建的订阅使用拉取请求。 我猜使用的回调方法概念主要是为了“推送”,这可能是因为我没有提供端点和令牌来发布消息。 希望我的猜测是正确的。 也让我知道你的看法。
这可能是由于以下两个因素之一造成的:
向 AutoML API 发送请求时使用的凭据无效 - pubsub 很可能在其他上下文中执行并且无法获取默认凭据
无效的模型资源名称(确保它是正确的) - 它应该是这样的:“projects/12423534/locations/us-central1/models/23432423”
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