IT22470: REST API URL MATCHING SOMETIMES RESOLVING TO WRONG OPERATION WHEN MULTIPLE SIMILAR MATCHING URLS REGISTERED

APAR status

• Closed as program error.

Error description

• If a REST API has the following definition where there are
  overlaps at the same level, for example if there following two
  operations were defined:
  
      Method: GET
         Url: l1/{variable}/{variable2}
   Operation: op1
  
      Method: GET
         Url: /l1/l2/{variable3}
   Operation: op2
  
  and a request is made to url /l1/l2/12345 then it is possible
  that the url will invoke operation op1 instead of op2 which is
  what should be invoked as literals take preference over
  variables.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus V10 and the RESTInput node.
  
  
  Platforms affected:
  MultiPlatform, z/OS
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If a REST API has the following definition where there are
  overlaps at the same level, for example if there following two
  operations were defined:
  
      Method: GET
         Url: l1/{variable}/{variable2}
   Operation: op1
  
      Method: GET
         Url: /l1/l2/{variable3}
   Operation: op2
  
  and a request is made to url /l1/l2/12345 then it is possible
  that the url will invoke operation op1 instead of op2 which is
  what should be invoked as literals take preference over
  variables.
  
  When registering the URLs they are not always ordered
  correctly for runtime resolution and the registration was not
  sorting them correctly.
  

Problem conclusion

• URL sorting on registration has been corrected to ensure they
  are in the appropriate order for runtime resolution.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.11
  
  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

  INTEGRATION BUS

• Fixed component ID

  5724J0540

Applicable component levels

• RA00 PSY

     UP