IT46169: ACE MAY THROW "NO OPERATION REGISTERED FOR URI AND METHOD" ERRORWHEN OVERRIDING REST API BASE URL

APAR status

• Closed as program error.

Error description

• When overriding REST API Base URI using the environment variable
  MQSI_REST_APP_ALLOW_CUSTOM_URL, ACE might throw No operation
  registered for URI and method error because of the way the URI
  gets mapped internally. For example, if the above environment
  variable is set and a Resource Path is provided as part of the
  Custom URL itself, the entire Path is considered for use as the
  Base URI neglecting the fact that the Resource is already part
  of it
  REST API Base URI - /consolidate/v1/group
  Resource - /calculate/tax
  HTTPInput Path Suffix for URL -
  /consolidate/v1/group/calculate/tax
  The above shall throw the exception
  ```
  2024-04-26 08:36:56.639040  1388275
  ImbRestApplication::beforePropagateOutput
  (00152EF3-662BCA18-00000004)  file:/build/jenkins_swg/slot0/pro
  duct-build/WMB/src/WebServices/REST/ImbRestApplication.cppline:9
  and method', 'TestApp', POST',
  'http://internal.test.group.dev.ibm.com/consolidate/v1/group'
  2024-04-26 08:36:56.639040  1388275     Error       BIP6311E:
  REST API 'TestApp' does not support method 'POST' for URL
  'http://internal.test.group.dev.ibm.com/consolidate/v1/group'.
  
  The HTTP request to URL
  'http://internal.test.group.dev.ibm.com/consolidate/v1/group'
  with HTTP method 'POST' failed as this method is not registered
  for this URL. REST API 'TestApp'.
  ```
  The same issue is observed when using Path parameters within the
  Custom URL
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All Users of IBM App Connect Enterprise v12 and v13 using
  `MQSI_REST_APP_ALLOW_CUSTOM_URL` environment variable to
  override REST API base URL with custom URL
  
  
  Platforms affected:
  AIX, WinX64, LinuxZ64, LinuxPPCLE64, LinuxX64
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The APAR `IT48670: ALLOW EVERY REST API ENDPOINT TO BE DEPLOYED
  SEPARATELY` does not take into consideration setting a custom
  REST API base URL and in-effect breaks the functionality
  introduced by the APAR `IT44319: OPERATION NOT SUPPORTED ERROR
  WHEN OVERRIDING A REST API APPLICATION'S BASE URL`
  

Problem conclusion

• A new environment variable `MQSI_REST_APP_ALLOW_CUSTOM_BASEPATH`
  has been introduced to accommodate the scenario wherein a
  customised base path needs to be provided on the HTTPInput node.
  This environment variable provides the functionality introduced
  in the APAR `IT44319: OPERATION NOT SUPPORTED ERROR WHEN
  OVERRIDING A REST API APPLICATION'S BASE URL` and needs to be
  set to 1 for the effects to take place.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version   Maintenance Level
  v12.0      12.0.12.25
  v13.0      13.0.7.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  APP CONNECT ENT

• Fixed component ID

  5724J0560

Applicable component levels