What does it mean that Sync-gateway returns this error 401 Login required?

Question

Sync-gateway returns this error 401 Login required, I don't understand why. Because I put in the header the basic auth with username and password, our root user to access to Couchbase.

I did a get on Sync-Gateway and it returns an error: 401 Login required.

2019-09-16T07:53:07.554Z HTTP:  #9650: GET /bucket_01/_changes?style=all_docs&active_only=true&include_docs=true&feed=longpoll&since=603276
2019-09-16T07:53:07.554Z HTTP: #9650:     --> 401 Login required  (0.5 ms)

My Sync-Gateway configuration:

[...]
    "bucket_01" : {
      "server": "http://127.0.0.1:8091",
      "bucket":"bucket_01",
      "revs_limit": 20,
      "username": "admin",
      "password": "pwd",
      "users": { "GUEST": { "disabled": true } },
      "sync": [...],
    }
[...]

UPDATE 18.09.2019

[...]
    "bucket_01": {
      "server": "http://127.0.0.1:8091",
      "bucket":"bucket_01",
      "revs_limit": 20,
      "username": "admin",
      "password": "pwdAccess",
      "users": { "GUEST": { "disabled": true }, "admin": {"password": "pwd"} },
      "sync": `function(doc, oldDoc) { [...] }`
[...]

The call:

[...]
    var sync_gateway_url = 'http://our_server/db/bucket_01/'
    var querystring = 'style=all_docs&active_only=true&include_docs=true&feed=longpoll&since=0';
    var options = {
        url: sync_gateway_url + '_changes?' + querystring,
        auth: {
            user: 'admin',
            pass: 'pwd',
            sendImmediately: false
        },
        timeout: 10000,
    };
[...]

2019-09-18T16:07:39.526+02:00 [INF] HTTP:  #4205: GET /bucket_01/_changes?style=all_docs&active_only=true&include_docs=true&feed=longpoll&since=603372 (as GUEST)
2019-09-18T16:07:39.526+02:00 [INF] HTTP: #4205:     --> 401 Login required  (0.3 ms)
2019-09-18T16:07:39.532+02:00 [INF] HTTP:  #4206: GET /bucket_01/_changes?style=all_docs&active_only=true&include_docs=true&feed=longpoll&since=603372 (as admin)

Answer 1

Where / how have you configured the sync gateway user ? Make sure that the user is configured via sync gateway config or via REST API. Confirm the list of users by doing a GET.