ServiceNow Rest API throwing error (401 UNAUTHORIZED)

[Arpit6]

Hello Experts,

I am using the below command from a unix machine.

curl -v "https://<instancename>/api/now/table/incident?sysparm_query=assigned_to=aea28412db295704e744f1e51d96194c" --request GET --header "Accept:application/json" --header "X-userToken:window.g_ck" --user "username":"password"

And the response I am getting is:

* About to connect() to **********.service-now.com port 443 (#0)
* Trying 149.96.37.37... connected
* Connected to ********.service-now.com (1.9.3.3) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
* subject: CN=*.service-now.com,O=ServiceNow,L=San Diego,ST=California,C=US
* start date: Jul 09 13:47:20 2018 GMT
* expire date: Apr 01 14:17:19 2019 GMT
* common name: *.service-now.com
* issuer: CN=Entrust Certification Authority - L1K,OU="(c) 2012 Entrust, Inc. - for authorized use only",OU=See www.entrust.net/legal-terms,O="Entrust, Inc.",C=US
* Server auth using Basic with user '********'
> GET /api/now/table/incident?sysparm_query=assigned_to=aea28412db295704e744f1e51d96194c HTTP/1.1
> Authorization: Basic WDQ4Njg5MjpSYXZhbGlAMDI=
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.27.1 zlib/1.2.3 libidn/1.18 libssh2/1.4.2
> Host: **********.service-now.com
> Accept:application/json
> X-userToken:window.g_ck
>
< HTTP/1.1 401 Unauthorized
< Set-Cookie: JSESSIONID=87F06C59DA9D8FFB5DED9F82DF96F480; Path=/; HttpOnly;Secure
< WWW-Authenticate: none
< X-UserToken-Request: window.g_ck
< X-UserToken-Response: 4ac63d5013d3a300926635528144b048f189c7d1a585d348744333243ea898672cfcdabb
< X-SessionLoggedIn: false
< X-HandleTimeOut: true
< X-AutoResubmit: true
< X-UserToken-AllowResubmit: false
< Pragma: no-store,no-cache
< Cache-control: no-cache,no-store,must-revalidate,max-age=-1
< Expires: 0
< Content-Type: application/json;charset=UTF-8
< Transfer-Encoding: chunked
< Date: Fri, 25 Jan 2019 11:17:39 GMT
< Server: ServiceNow
< Set-Cookie: BIGipServerpool_*********=226499850.38974.0000; path=/; Httponly; Secure
< Strict-Transport-Security: max-age=63072000; includeSubDomains
< Connection: close
<
* Closing connection #0
{"error":{"message":"User Not Authenticated","detail":"Required to provide Auth information"},"status":"failure"}

I have used the same credentials to login the ServiceNow console and credentials work perfectly fine.

Any help on this matter is much appreciated.

Thanks

[juliancoira]

I'm having a similar issue with Postman using an API key.

• The user account associated to the key has all the right roles to access tables/records queried (double checked from UI). Also the relevant roles for the APIs.
• Configured all the API Access Policies for the APIs Case and Table. 

Still, every now and then I get an error 401:

{

    "error": {

        "message": "User Not Authenticated",

        "detail": "Required to provide Auth information"

    },

    "status": "failure"

}

If I executed the previous successful call from Postman right after this error, and then I switched back to the one that failed again... it works !

After reading your comment I'm really starting to think this problem might be on Postman.