403 error when authenticating with Azure Management API - nodejs - node.js

Question

I'm using the following npm to try and create a cloud service using NodeJS.
https://www.npmjs.com/package/azure-mgmt-compute
This is the code i'm using:
var file = __dirname + '/azure-cert.pem';
var computeManagementClient = computeManagement.createComputeManagementClient(computeManagement.createCertificateCloudCredentials({
subscriptionId: userCredentials.subscriptionId,
pem: fs.readFileSync(file, 'utf-8')
}));
I'm getting the error: "The server failed to authenticate the request. Verify that the certificate is valid and is associated with this subscription".
Status code 403.
I've done what's written here:
https://msdn.microsoft.com/en-us/library/azure/gg551722.aspx
And converted to PEM using OpenSSL.
I also tried the following:
openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout azure-cert.pem -out azure-cert.pem
pkcs12 -export -out azure-cert.pfx -in azure-cert.pem -name "My Self Signed Cert"
openssl x509 -outform der -in azure-cert.pem -out azure-cert.cer
Everything fails.
Any ideas?

Answer 1

I tried to follow the section "How to Use -> Authentication " of the page https://www.npmjs.com/package/azure-mgmt-compute to get the .pem file via Azure Xplat-CLI and run the sample code. It works fine.
Firstly you need to install the Azure Xplat-CLI via command npm install -g azure-cli, please refer to https://azure.microsoft.com/en-us/documentation/articles/xplat-cli-install/.
Secordly you need to connect to your Azure subscription via command azure login -u <username>, please refer to https://azure.microsoft.com/en-us/documentation/articles/xplat-cli-connect/.
Then you can command azure account cert export to get the .pem file. The code works with the subscription id & pem file.
Best Regards!