IT30171: INCONSISTENT API DOWNSTREAM ROUTING BEHAVIOR CAUSED BY PARTIAL MATCH IN PATH TEMPLATE

Fix packs for DataPower Gateway version 2018.4

APAR status

• Closed as program error.

Error description

• The routing process  is allowing partial match in path
  templating (configure the value of path with path parameters).
  As a result we see unexpected routing when you have for example
  an API Swagger containing operations with the following pattern:
  Operation 1. GET
  /{payment-service}/{payment-product}/{paymentId}
  Operation 2. GET
  /{payment-service}/{payment-product}/{paymentId}/status
  When you invoke the second operation in the API, the substitued
  value ("payments") for the variable "/{payment-service} "
  is removed from the target backend url,
  We see invoked:
  /sepa-credit-transfers/915005503046948/status
  but it should be instead
  /payments/sepa-credit-transfers/915005503046948/status.
  

Local fix

Problem summary

• Inconsistent API downstream routing behavior caused by partial
  match in path templating.
  

Problem conclusion

• Fix is available in 2018.4.1.8
  For a list of the latest fix packs available, please see:
  http://www-01.ibm.com/support/docview.wss?uid=swg21237631
  

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

  DATAPOWER

• Fixed component ID

  DP1234567

Applicable component levels

• R18X PSY

     UP