CODEWITHSUNDEEP
azure-functionsazure-blob-storageazure-blob-trigger
bitshift
bitshift

Reputation: 6852

Blob-triggered function works locally but not deployed (not invoked)

Got a function working locally, triggered when a file is dropped and now deploying to azure.

Function signature looks like this. Notice the binding expression.
This expression is attempting to pull a value from appsettings called "MyFolderPath"
Locally this works as expected. The path is container/folder_name
The setting is available in azure under Environment variables.
However, when I drop a new file in that path, the function is not triggered or invoked.
What can I check?

public async Task Run([BlobTrigger("%MyFolderPath%/{name}",Connection = "FuncStorage", Stream stream, string name)

Upvotes: 0

Views: 461

Answers (1)

Pavan
Pavan

Reputation: 1381

Initially I was getting same issue. but, after adding the storage connection string in function app environment variables working as expected.

  • while adding the connection string in environment variable name and value must be same in portal and local.
  • After adding the connection string need to redeploy the function.

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I have created blob trigger function with run time stack .NET 8.0. The function got triggered when i uploaded blobs in container.

Function code:

public class Function1
{
    private readonly ILogger<Function1> _logger;

    public Function1(ILogger<Function1> logger)
    {
        _logger = logger;
    }

    [Function(nameof(Function1))]
    public async Task Run([BlobTrigger("hello32/{name}", Connection = "Connection23")] Stream stream, string name)
    {
        using var blobStreamReader = new StreamReader(stream);
        var content = await blobStreamReader.ReadToEndAsync();
        _logger.LogInformation($"C# Blob trigger function Processed blob\n Name: {name} \n Data: {content}");
    }
}

local.settings.json:

{
    "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "Connection23": "your-storage conn-string"
  }
}

enter image description here

I have published the function into azure portal successfully. check below:

enter image description here

When I uploaded the blobs in container the function got triggered in portal as well. check the below traces:

enter image description here

Below are uploaded blobs in storage container.

enter image description here

Upvotes: 1

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