英文:
Cloud Function Can not Get Correct Pub/Sub MEssage
问题
我正在设置一个基于触发器的Google Cloud Platform (GCP) pub/sub云函数。云函数监听的主题是us-pubsub1。当我部署了云函数并使用测试面板发送消息时，如：
{"index":123,
"video_name":'test.mp4'}
在云函数中处理带有"index"和"video_name"键的消息时没有问题。但是，当我向us-pubsub1发送实际消息以触发云函数时，它总是因为无法在消息体中找到"index"而失败。当在云函数中读取pub/sub消息时，它返回给我消息如下：
{'@type': 'type.googleapis.com/google.pubsub.v1.PubsubMessage',
'attributes': None, 'data':
'eyJzZXNzaW9uX2lkIjogImUzYjM0MTJiLWQxNWUtNDM5My05YjEy-5Z2-7IzcTO4L3QuNW'
}
我已经确认消息正确到达us-pubsub1，只是无法在云函数中处理。是否有什么我错过的东西，以获取真正的云函数消息体？
英文:
I am setting up a pub/sub trigger-based cloud function in GCP, the topic the cloud function listen to is us-pubsub1. When I deployed the cloud function and used the testing panel to send messages like:
{"index":123,
"video_name":'test.mp4'}
in cloud function to processing the message with key index and video_name, it has no issue. But when I sent a real message to us-pubsub1 to trigger the cloud function, it always failed for not able to find the 'index' in the message body. and when reading the pub/sub message in cloud function, it return me messages like:
> {'@type': 'type.googleapis.com/google.pubsub.v1.PubsubMessage',
> 'attributes': None, 'data':
> 'eyJzZXNzaW9uX2lkIjogImUzYjM0MTJiLWQxNWUtNDM5My05YjEyLWI3ZGY1ZGE4MTQ0NCIsICJzZXNzaW9uX25hbWUiOiAiU0VTU0lPTl9DMjIjMwMTI1VDIwMTI1NCIsICJzaXRlX25hbWUiOiAiVkEgTUVESUNBTCBDRU5URVIgLSBQQUxPIEFMVE8gLSc3RlY3RvbXkiLCAiaHViX3NlcmlhbF9udW1iZXIiOiAiQzIyNC0wMDIwNSIsICJjYXN0X2FwcF92ZXJzaW9uIjogIjEyLjAuMzIuNyIsICJkdl9zeXN0ZW0iOiAiVUFUU0syMDA3IiwgImludGVybmFsX2tleSI6ICJtNjQzY2U1NS0zNjNiLQ=='}
I checked that the message arrive in us-pubsub1 correctly and just failed to process in cloud function.
Is there any thing I have missed for fetching the message body for real cloud function?
答案1
得分: 1
这是正常的。您有一个发布订阅消息封装，您的内容以 base64 编码方式在数据字段中。这里有文档详细信息。
顺便说一下，这是您示例的实际内容（部分内容已截断，可能没有分享整个内容）。
英文:
It's normal. You have a pubsub message enveloppe and your content is base64 encoded in the data field. Here the documentation details
FWIW, here the real content of your sample
{"session_id": "e3b3412b-d15e-4393-9b12-b7df5da81444", "session_name": "SESSION_C22#3#UC##SB"'6FUR#%dTD44TDU"Dstectomy", "hub_serial_number": "C224-00205", "cast_app_version": "12.0.32.7", "dv_system": "UATSK2007", "internal_key": "m643ce55-363b-
it is truncated, you might not share the whole content 
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