Error occurred while converting Bicep deployment output to JSON in Azure pipeline

Question

We are encountering the following error when trying to convert the Bicep deployment output to JSON.

Error:

convertFrom-Json : Conversion from JSON failed with error: Unexpected character encountered while parsing value: B. Path '', line 0, position 0.

Bicep deployment task:

• task: AzureCLI@2

              name: IacDeploy
  
              displayName: "Deploy Bicep template"
  
              inputs:
  
                azureSubscription: "DEV_sub"
  
                scriptType: pscore
  
                scriptLocation: "inlineScript"
  
                inlineScript: |
  
                  az config set bicep.use_binary_from_path=false
  
                  az bicep upgrade
  
                  $result = az deployment sub create `
  
                      --name $(Build.BuildNumber) `
  
                      --location ${{lower(variables.location)}} `
  
                      --template-file '$(Pipeline.Workspace)/drop/${{lower(variables.iacTemplatePath)}}' `
  
                      --parameters '$(Pipeline.Workspace)/drop/${{lower(variables.iacTemplateParametersPath)}}' `
  
  					  | ConvertFrom-Json
  

Kindly help us in resolving this case.

Answer 1

Hi,

Removed ConvertFrom-Json from create command and added to the show command and it was started working as expected.

Could you please help us to know why "ConvertFrom-Json" wasn't worked on Create command.

$resultBicep = az deployment sub create `
                          --name $(Build.BuildNumber) `
                          --location ${{lower(variables.location)}} `
                          --template-file '$(Pipeline.Workspace)/drop/${{lower(variables.iacTemplatePath)}}' `
                          --parameters '$(Pipeline.Workspace)/drop/${{lower(variables.iacTemplateParametersPath)}}' 

                      $result = az deployment sub show --name $(Build.BuildNumber) | ConvertFrom-Json

                      $resourceGroupName = $result.properties.outputs.resourceGroupName.value
                      Write-Host "##vso[task.setvariable variable=resourceGroupName]$resourceGroupName"