Authorization failed while wget azure REST API

Question

I am trying to collect azure metrics using REST api. I have a free subscription to azure account.

I am using the following wget to get the json message.

wget https://management.azure.com/subscriptions/XXXXXXX/resourceGroups/RG_SOUTH_INDIA/providers/Microsoft.Compute/virtualMachineScaleSets/linuxscal/metrics?api-version=2014-04-01

XXXXXXX- is my subscription id.

I get the following Error message.

Resolving management.azure.com... 13.67.231.219
Connecting to management.azure.com|13.67.231.219|:443... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Authorization failed.

What is wrong with my subscription/Authorization?!!

Thanks in Advance for your help guys!! Am Stuck!!

you don't need and 'API key' or similar to make your request? otherwise anyone could hit this link with your subscription id — matias elgart, Nov 13 '16 at 10:34
U don't have username / password for authorization ? or only the link is enough ? — Umais Gillani, Nov 13 '16 at 10:45

evilSnobu · Accepted Answer · 2016-11-13T13:07:55.427

You need to include an Authorization header with a Bearer token in your call:

GET /subscriptions?api-version=2015-01-01 HTTP/1.1
Host: management.azure.com
Authorization: Bearer YOUR_ACCESS_TOKEN
Content-Type: application/json

Take a look at armclient, since you really don't want to do all this by hand (or by curl): https://www.npmjs.com/package/armclient

// ES6
import ArmClient, { clientCredentials } from 'armclient';

const client = ArmClient({ 
  subscriptionId: '111111-2222-3333333',
  auth: clientCredentials({
    tenantId: '444444-555555-666666666',
    clientId: '777777-888888-999999999',
    clientSecret: 'aaaabbbbbccccc' // or servicePrincipalPassword
  })
});

Your /metrics call becomes:

client.get('/resourceGroups/RG_SOUTH_INDIA/providers/Microsoft.Compute/virtualMachineScaleSets/linuxscal/metrics', { 'api-version': '2014-04-01' })
  .then((res) => {
    console.log(res.body);
    console.log(res.headers);
  })
  .catch((err) => {
    console.log(err);
  });

Thanks @evilSnobu!! Thats true, i anyways wont using wget for it. I shall be using Java. When i am calling the REST API using Java, i am still getting the same error ie.Authentication error. It would be helpful if i get a java code for it!...Thanks again!! — Nilotpal, Nov 14 '16 at 04:57

score 0 · Answer 2 · answered Nov 13 '16 at 10:50

0

By specifying the option --user and --ask-password wget will ask for the credentials. Below is an example. Change the username and link to your needs

wget --user=username --ask-password https://YOUR_URL

answered Nov 13 '16 at 10:50

Umais Gillani

608
4
9

1

That's only good for HTTP Basic authentication - won't work with Azure ARM which expects a token: `Authorization: Bearer ToKeN=` – evilSnobu Nov 13 '16 at 12:05

Authorization failed while wget azure REST API

2 Answers2