Update SourceControlTokens

• Get source control tokens

ARMClient.exe get /providers/Microsoft.Web/sourceControls?api-version=2014-11-01

ARMClient.exe get /providers/Microsoft.Web/sourceControls/GitHub?api-version=2014-11-01

• Update source control token (for instance, GitHub).

ARMClient.exe put /providers/Microsoft.Web/sourceControls/GitHub?api-version=2014-11-01 '@payload.json'

sample payload.json

{
  "properties": {
    "token": "abcd1234"
  }
}

Note that you'll need to have assigned the 'Windows Azure Service Management API' permissions to the service principal before making the call to update the 'SourceControlTokens'.