VS Code local debugging of Azure Functions (v2.0) in Javascript: how to show ONLY my console.log() messages?

user_135041 0
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I tried to capture the issue context in the title, but in case it's unclear:

  1. I'm developing/testing locally in VS Code.
  2. I'm using Azure Functions v2.0.
  3. I'm writing in JavaScript.

I can see both console.log() messages and context.log() messages in the Terminal window. (The two calls behave EXACTLY the same in this case.) The problem is that at runtime, the terminal window is also flooded with other messages emanating from the Azure Function runtime. There are so many other messages that finding the console/context.log() messages is difficult.

I've resorted to using a delimiter (line of asterisks) to try to highlight what I want, but surely there's a better way to do this.

Here's an example:

enter image description here

I've read up on configuring log levels and categories in the host.json file, and have tried every permutation I can think of, but it either suppresses only my messages, or makes no difference at all.

How can I suppress ONLY the automatic messages, and leave only mine? Or is there a way to direct console/context.log() output to another window?

azure-functions visual-studio-code javascript debugging
1 Answers

You need to let your function app read a setting before starting.

Set logging:logLevel:Microsoft.Azure.WebJobs.Script.WebHost.Middleware.SystemTraceMiddleware to None in local.settings.json can disable the verbose console logs:

local.settings.json

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "",
    "FUNCTIONS_WORKER_RUNTIME": "node",
    "logging:logLevel:Microsoft.Azure.WebJobs.Script.WebHost.Middleware.SystemTraceMiddleware": "None"
  }
}

enter image description here

user_118167330
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