I've been able to access azure key vault using oauth rest api through my external web app, but for some reason I am unable to retrieve the secrets from the keys. After long hours of researching I've found out that its possible to do this with powershell and c# but have still yet to find any solution with python.
Anyone know if its possible with python, or is there a way of emulating what powershell is doing through?
Here's the code to retrieve the secret:

```
def getSecret(vault_name, secret_name, secret_version = ''):
    #Get acess token to azure account
    data = { "grant_type" : "client_credentials", 
            "client_id" : 'appidxx', 
            "client_secret" : 'appsecretxx', 
            "resource" : "https://vault.azure.net"
        }
    headers = { "Content-Type" : "application/x-www-form-urlencoded" }
    r = requests.post("https://login.windows.net/{}/oauth2/token".format('my tenant id'), data=data, headers=headers)
    access_token = r.json()['access_token']
    #Get secret from KeyVault
    headers = {"Authorization":"Bearer {}".format(access_token) }
    r = requests.get('https://{}.vault.azure.net/secrets/{}/{}?api-version=2015-06-01'.format(vault_name, secret_name, secret_version), headers=headers)
    result = r.json()
    if 'value' in result.keys():
        return result["value"]
    else: 
        return 'Secret Not Found'

def searchSecret(secret_name, secret_version = ''):
subscription_id = 'subscription id'    
credentials = ServicePrincipalCredentials(
        client_id= 'appidxx',
        secret= 'appsecretxx',
        tenant= 'tenantidxx'
    )

    kvm_client = KeyVaultManagementClient(credentials,  subscription_id )
    for vault in kvm_client.vaults.list():
        #return when secret found in vault
        secret = getSecret(vault.name, secret_name, secret_version = '')
        if (secret != 'Secret Not Found'):
            return secret
    return 'Secret Not Found'

```

Also I have registered my app in azure portal and granted permissions to my keys and secrets, however i noticed that when granting access to my app through access policy, the "Authorized application" option is locked and i cannot add my app, which may be the root cause of my issue??
[screenshot](https://i.stack.imgur.com/m0HBu.png)