I am trying to roll out an Azure Function with bicep. Everything up to ‘Microsoft.Web/sites’ and everything around it (Blob and such) works and I can use VS Code to deploy my python code to that function afterwards.

When I try to deploy my code using Bicep aswell, I get the following error:

{
    "status": "Failed",
    "error": {
        "code": "BadRequest",
        "message": ""
    }
}

What did I do wrong? I am using a Flex consumption plan and my bicep code for ‘Microsoft.Web/sites/functions’ is below.

resource function 'Microsoft.Web/sites/functions@2020-12-01' = {
  parent: functionApp
  name: functionNameComputed
  properties: {
    config: {
      scriptFile: 'function_app.py' // tried with and without this option
      entryPoint: 'function_app'    // tried with and without this option
      disabled: false
      bindings: [
        {
          name: 'req'
          type: 'httpTrigger'
          direction: 'in'
          authLevel: 'function'
          methods: [
            'get'
          ]
        }
        {
          name: '$return'
          type: 'http'
          direction: 'out'
        }
      ]
    }
    files: {
      'function_app.py': loadTextContent('function_app.py')
      'requirements.txt': loadTextContent('requirements.txt')
    }
  }
}