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[英]how to read the Azure blob file with Azure function in python?
[英]How to dynamically read blob file from Azure Function Python
我希望能够使用 Azure Function Python 动态读取 blob 文件 (json),文件名通过 Azure 事件中心消息传递。 我如何使用 Azure 绑定来做到这一点?
function.json
{
"scriptFile": "__init__.py",
"bindings": [
{
"type": "eventHubTrigger",
"name": "events",
"direction": "in",
"eventHubName": "beta-api-intergration",
"connection": "receiverConnectionString",
"cardinality": "many",
"consumerGroup": "beta-api-consumer",
"dataType": "binary"
},
{
"name": "betablob",
"type": "blob",
"path": "swuploads/{filename}.json",
"connection": "AzureWebJobsStorage",
"direction": "in"
}
]
}
初始化.py
def main(events: List[func.EventHubEvent], betablob: func.InputStream):
well.login(user,pwd)
for event in events:
logging.info('Python EventHub trigger processed an event: %s', event.get_body().decode('utf-8'))
###msg contains the file name I want to load in blob
msg=parse_msg(event)
####how do I pass the file name here ?
data=load_blob(betablob)
一般情况下,可以通过传入json格式的输入(或触发)间接实现动态绑定。
例如,发送这样的消息:
{
"filename":"test"
}
然后绑定将获得值“test”。(这仅适用于使用声明性绑定的语言,如 python。)
但是event hub好像不能指定传入信息的格式,所以无法实现纯绑定。 需要基于python的 Azure SDK 来实现动态绑定。
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