CCS REST API Error 400
Article ID: 228324
Updated On:
Products
Issue/Introduction
When trying to use the Control Compliance Suite REST API you see the following errors.
Our ServiceNow API is generating an Error 400
400 Bad Request
invalid_grant
In the Application Server log file you may find an entry similar to this:
2021-11-15 19:53:38.168,2021-11-15 12:53:38.168,#####,Error,AppServer.Server,AppserverService,9424,,70,FromBase64_Decode,,0,0,"Error while generating access token. : System.FormatException: Invalid length for a Base-64 char array or string.
at System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength)
at System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength)
at System.Convert.FromBase64String(String s)
at Appserver.Server.Providers.AuthorizationServerProvider.<GrantResourceOwnerCredentials>d__14.MoveNext()"
Environment
CCS 12.x
Cause
Due to issues with special characters CCS 12.5.2 and above was enhanced to use base64 encoded passwords with the REST API.
Resolution
Please provide a base64 encoded password for use with the REST API.
UTF-8 encoding of the base64 password string is accepted by the API.
If you do not have a way to do this you may use the following website.
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