loopback api returning error AUTHORIZATION_REQUIRED

Question

I am having two models : user and car

user acl :

 "acls": [
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "DENY"
    },
    {
      "accessType": "EXECUTE",
      "principalType": "ROLE",
      "principalId": "admin",
      "permission": "ALLOW",
      "property": "find"
    },
    {
      "accessType": "EXECUTE",
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "ALLOW",
      "property": "login"
    },
    {
      "accessType": "READ",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "admin",
      "permission": "ALLOW"
    }

car acl :

  "acls": [
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "DENY"
    },
    {
      "accessType": "EXECUTE",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW",
      "property": "find"
    },
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "READ",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "EXECUTE",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "WRITE",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "WRITE",
      "principalType": "ROLE",
      "principalId": "$authenticated",
      "permission": "ALLOW"
    }

I am able to add car using api /cars but unable to get list of cars using api /cars , during get it is returning AUTHORIZATION_REQUIRED error code.

note : i am logged in as a user then i am trying to get list of cars owned by user.

Moacir Rosa Moacir Rosa · Accepted Answer · 2017-05-24T15:57:48

It's possible that you're missing to add the model relation in agreement with Loopback documentation:

To qualify a $owner, the target model needs to have a belongsTo relation to the User model (or a model extends from User) and property matching the foreign key of the target model instance. The check for $owner is only performed for a remote method that has ‘:id’ on the path, for example, GET /api/users/:id.

Also I believe it would be a good idea change the default setting aclErrorStatus from 401 to 403. This way it would be easier to understand if it's an issue with authentication or authorization.

loopback api returning error AUTHORIZATION_REQUIRED

1 Answers