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webMethods Knowlegebase : Query string parameters are not being passed to backend service (1783070)

Troubleshooting


Problem

Customer is invoking a virtual REST service via the Mediator (GET method), including a query string with parameters.

The parameters are not being forwarded to the backend service. If the service is directly called, it works.

Further investigations showed that:

- When the initial reqeust contains a HTTP Content-Type header, the query parameters are not being passed to the backend service.

2017-07-07 09:24:01 CEST [ISC.0039.0001D] GET

/ws/vs_KL_Incident5289237/sayHello/du/asdjklasjd?language=de&sdfasdf=wq

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- Accept-Encoding:

gzip,deflate

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- sdjkfjk: sdfsdfsdfsdf

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- ApiKey:

ZyUevuMrfL16JLAc4e3f

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- Content-Type:

application/json

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- Host:

iawmsme02.dc.hn.de.kaufland:35555

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- Connection: Keep-Alive

2017-07-07 09:24:01 CEST [ISC.0038.0002D] <-- User-Agent:

Apache-HttpClient/4.1.1 (java 1.5)

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> GET

/rest/KL_Incident5289237/ws/sayHello/du/asdjklasjd HTTP/1.1

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> User-Agent: Mozilla/4.0

[en] (WinNT; I)

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> Accept: image/gif, */*

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> Host:

dedcw28eai201.de.int.kaufland:35555

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> Content-Type:

application/json

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> ApiKey:

ZyUevuMrfL16JLAc4e3f

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> Accept-Encoding:

gzip,deflate

2017-07-07 09:24:01 CEST [ISC.0038.0002D] --> sdjkfjk: sdfsdfsdfsdf

2017-07-07 09:24:03 CEST [ISC.0040.0001D] HTTP/1.1 200

2017-07-07 09:24:03 CEST [ISC.0038.0002D] <-- Content-Type:

application/json

2017-07-07 09:24:03 CEST [ISC.0038.0002D] <-- Content-Length: 108

2017-07-07 09:24:03 CEST [ISC.0038.0002D] --> HTTP/1.1 200 OK

2017-07-07 09:24:03 CEST [ISC.0038.0002D] --> Content-Type:

application/json; charset=UTF-8

2017-07-07 09:24:03 CEST [ISC.0038.0002D] --> Content-Encoding: gzip

2017-07-07 09:24:03 CEST [ISC.0038.0002D] --> Content-Length: 116

- When the initial request does not contain the HTTP Content-Type header, the query parameters are being passed to the backend service.

2017-07-07 09:24:52 CEST [ISC.0039.0001D] GET

/ws/vs_KL_Incident5289237/sayHello/du/asdjklasjd?language=de&sdfasdf=wq

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- Accept-Encoding:

gzip,deflate

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- sdjkfjk: sdfsdfsdfsdf

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- ApiKey:

ZyUevuMrfL16JLAc4e3f

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- Host:

iawmsme02.dc.hn.de.kaufland:35555

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- Connection: Keep-Alive

2017-07-07 09:24:52 CEST [ISC.0038.0002D] <-- User-Agent:

Apache-HttpClient/4.1.1 (java 1.5)

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> GET

/rest/KL_Incident5289237/ws/sayHello/du/asdjklasjd?sdfasdf=wq&language=d

e HTTP/1.1

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> User-Agent: Mozilla/4.0

[en] (WinNT; I)

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> Accept: image/gif, */*

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> Host:

dedcw28eai201.de.int.kaufland:35555

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> Content-Type:

application/x-www-form-urlencoded

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> ApiKey:

ZyUevuMrfL16JLAc4e3f

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> Accept-Encoding:

gzip,deflate

2017-07-07 09:24:52 CEST [ISC.0038.0002D] --> sdjkfjk: sdfsdfsdfsdf

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> GET

/rest/KL_Incident5289237/ws/sayHello/du/asdjklasjd?sdfasdf=wq&language=d

e HTTP/1.1

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> User-Agent: Mozilla/4.0

[en] (WinNT; I)

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Accept: image/gif, */*

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Host:

dedcw28eai201.de.int.kaufland:35555

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Content-Type:

application/x-www-form-urlencoded

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> ApiKey:

ZyUevuMrfL16JLAc4e3f

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Accept-Encoding:

gzip,deflate

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> sdjkfjk: sdfsdfsdfsdf

2017-07-07 09:24:54 CEST [ISC.0040.0001D] HTTP/1.1 200

2017-07-07 09:24:54 CEST [ISC.0038.0002D] <-- Content-Type:

application/json

2017-07-07 09:24:54 CEST [ISC.0038.0002D] <-- Content-Length: 42

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> HTTP/1.1 200 OK

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Content-Type:

application/json; charset=UTF-8

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Content-Encoding: gzip

2017-07-07 09:24:54 CEST [ISC.0038.0002D] --> Content-Length: 57

This is weird, since the content-type header was being ignored by Mediator.

Document Location

Worldwide

[{"Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSQKXP","label":"IBM webMethods API Management"},"ARM Category":[{"code":"a8mKe00000000AQIAY","label":"webMethods Mediator (formerly X-Broker) (SMG)"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Red Hat Enterprise Linux"}],"Version":"9.7"}]

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Document Information

Modified date:
20 March 2025

UID

ibm17196763

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