401 Unauthorized trying to get the products in Merchant Center account

[rafa....@rocketroi.com]

I'm trying to get the products from a Merchan Center account but i'm getting a 401 Unauthorized error.

My code is:

ShoppingContent.Products.List productsList = content.products().list(BigInteger.valueOf(merchantId)).setMaxResults(PAGE_SIZE);
ProductsListResponse page = productsList.execute();

And the error I'm getting is:

com.google.api.client.googleapis.json.GoogleJsonResponseException: 401 Unauthorized
{
  "code" : 401,
  "errors" : [ {
    "domain" : "global",
    "location" : "Authorization",
    "locationType" : "header",
    "message" : "Login Required",
    "reason" : "required"
  } ],
  "message" : "Login Required"
}

What could be the cause of the problem?

[Vishal Vinayak (Adwords API Team)]

Hi Rafa,

To confirm, are you using AdWords API for this purpose? In case you are using Content API for Shopping, I would recommend posting your query on this forum. 

Regards,

Vishal, AdWords API Team