我有以下用Python编写的简单Azure函数。它是一个 HTTP 触发器，应仅从 Azure 存储帐户返回 blob 输入绑定的名称和 URI（此处为 Microsoft 的参考文档）。
import logging
import azure.functions as func
import azure.storage.blob
from azure.storage.blob import BlobServiceClient, BlobClient, ContainerClient
def main(req: func.HttpRequest, inputblob: func.InputStream) -> func.HttpResponse:
logging.info('Python HTTP trigger function processed a request.')
return func.HttpResponse(f"Blob name: {inputblob.name}. Blob URI: {inputblob.uri}")
我的function.json文件是这样的。我已经验证了local.settings.json中的连接字符串是正确的，并且blob路径也是正确的。
{
"scriptFile": "__init__.py",
"bindings": [
{
"authLevel": "anonymous",
"type": "httpTrigger",
"direction": "in",
"name": "req",
"methods": [
"get",
"post"
]
},
{
"name": "inputblob",
"type": "blob",
"path": "containername/testblobname.json",
"connection": "MyStorageConnectionAppSetting",
"direction": "in"
},
{
"type": "http",
"direction": "out",
"name": "$return"
}
]
}
现在，此函数返回“JSON名称：无。JSON URI：无”。显然blob输入绑定不起作用。如何对此进行故障排除，或者我遗漏了什么？
根据我的研究，目前，blob输入绑定的元数据（例如名称，长度）不是由函数主机提供的，但您仍然可以通过blob.read（）访问blob绑定中的原始数据。有关更多详细信息，请参阅 https://github.com/Azure/azure-functions-python-worker/issues/576。
我的function.json
{
"scriptFile": "__init__.py",
"bindings": [
{
"authLevel": "anonymous",
"type": "httpTrigger",
"direction": "in",
"name": "req",
"methods": [
"get",
"post"
]
},
{
"name": "inputblob",
"type": "blob",
"path": "input/keyCredentials.txt",
"connection": "MyStorageConnectionAppSetting",
"direction": "in"
},
{
"type": "http",
"direction": "out",
"name": "$return"
}
]
}
我的代码
import logging
import azure.functions as func
def main(req: func.HttpRequest, inputblob: func.InputStream) -> func.HttpResponse:
logging.info('Python HTTP trigger function processed a request.')
return func.HttpResponse(f"Blob conetnt: {inputblob.read()}.")
