Azure: Authorization fail when trying to create notification hub namesapce - node.js

Question

Am using the node.js SDK to call the Azure notification hub api, I registered an application using Azure Active directory also i created a resource group and added my user to it as owner. But am getting this error when calling the api:
AuthorizationFailed
The client '333848ca-f996-XXXXXXXXXXXX' with object id
'333848ca-f996-XXXXXXXXX' does not have authorization to perform
action 'Microsoft.NotificationHubs/namespaces/write' over scope
'/subscriptions/ef8e8e-XXXXXXXXXXXX/resourceGroups/notificationGroup/providers/Microsoft.NotificationHubs/namespaces/namespaceapp1
The code:
MsRest.loginWithServicePrincipalSecret(
My Subscription ID,
My Application Secret Key,
My Directory ID, // found under AD -> properties
(err, credentials) => {
if (err) throw err;
// eslint-disable-next-line
const client = new notificationHubsClient(credentials, AZURE_SUBSCRIPTION_ID);
const createNamespaceParameters = {
location: AZURE_LOCATION,
tags: {
tag1: 'value1',
tag2: 'value2',
},
};
client.namespaces.createOrUpdate(AZURE_RESOURCE_GROUP_NAME, req.body.name, createNamespaceParameters,
(error, result) => {
if (error) {
res.send(error);
}
console.info(`Namespace created${JSON.stringify(result, null, ' ')}`);
res.send('app created');
});
},
);

Answer 1

According to the error message, you'll need to add your Azure Active directory application to the Contributor role for creating the namespace in Azure Notification Hub.
You can follow the steps below which are also documented here.
Go to Azure portal and select Subscriptions.
Select the particular subscription (resource group or resource) to assign the application to.
Select Access Control (IAM).
Select Add.
Select the Contributor role to assign to your AAD application.