Event grid function URL from powershell

Question

I have an event grid triggered function app. I am using the below code to get function URL.

function Get-Function-Key {
    return (Invoke-AzResourceAction `
            -Action listKeys `
            -ResourceType 'Microsoft.Web/sites/functions/' `
            -ResourceGroupName $ResourceGroup `
            -ResourceName "$FuncAppName/$FuncName" `
            -Force).default
}

$functionKey = Get-Function-Key -FuncAppName $FuncAppName -FuncName $FuncName `
                -ResourceGroup $ResourceGroup

$apiUrl = "https://$FuncAppName.azurewebsites.net/runtime/webhooks/EventGrid?functionName=$FuncName&code=$functionKey"

I noticed the function URL uses masterkey instead of function key. Is there any command in powershell to get master key of the function URL.

Your function does not have a param block, yet you call it using parameters?? — Theo
– Theo, Commented Mar 12, 2021 at 10:30
I am new to powershell scripting. I currently exploring , I will change it later as per standards.By the way those parameters are set through azure devops release pipeline. I think we set it at script parameters section in azure powershell task. — suraj_123
– suraj_123, Commented Mar 12, 2021 at 10:36
I have no experience in azure tasks, but if a function should use parameters, you need to define them as the first line in the function: param([string]$FuncAppName, [string]$FuncName, [string]$ResourceGroup) — Theo
– Theo, Commented Mar 12, 2021 at 11:06
Any update this issue? If it is helpful, please accept it as answer, thanks. — Joy Wang
– Joy Wang, Commented Mar 24, 2021 at 8:36

Joy Wang · Accepted Answer · 2021-03-15 07:44:02Z

2

I test your commands on my side, it returns the function key of the EventGridTrigger in the function app.

So if you want to get the master key, just use the command below.

function Get-Function-Key {
 param([string]$FuncAppName,[string]$ResourceGroup)
    return (Invoke-AzResourceAction `
            -Action listKeys `
            -ResourceType 'Microsoft.Web/sites/host/default' `
            -ResourceGroupName $ResourceGroup `
            -ResourceName "$FuncAppName" `
            -Force).masterKey
}

edited Mar 15, 2021 at 7:44

answered Mar 15, 2021 at 6:19

Joy Wang

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