Unauthorized access: If-Match does not match ETag

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VenkatVelu

Member since 2011

7 posts

Standard Chartered Bank

Posted: Jul 28, 2016

Last activity: Jul 29, 2016

Posted: 28 Jul 2016 0:29 EDT
Last activity: 29 Jul 2016 6:00 EDT

Closed

Unauthorized access: If-Match does not match ETag

For most of beginners who are trying to use PUT API call, they will get stuck what value they have to put in If-Match attribute. Below information will help them to overcome that issue.

What is the value you have to give in If-Match field of PUT /cases/{ID} API call?

Value of the entity tag that is received as ETag header in responses to create case and get case details APIs

When you want to update a case using PUT API call, you have to give an etag value in If-Match request attribute. You can get the etag from Create Case or Get Case Reponse Header. I have highlighted in bold in the below response header.

Response Header of Get Case ID:

{
"date": "Thu, 28 Jul 2016 04:00:01 GMT",
"content-encoding": "gzip",
"server": "Apache-Coyote/1.1",
"x-powered-by": "Servlet 2.5; JBoss-5.0/JBossWeb-2.1",
"etag": "\"20160728T024035.456 GMT\"",
"warning": "299 uklvadcsc01a.uk.standardchartered.com \"Use of TLS/SSL is strongly recommended for services using Basic Authentication\"",
"content-type": "application/json;charset=UTF-8",
"cache-control": "no-cache, proxy-revalidate",
"proxy-connection": "Keep-Alive",
"connection": "Keep-Alive",
"content-length": "2348"}

If you give wrong value you will get the below error.

{

"pxObjClass": "Pega-API-CaseManagement-Case",

"errors": [

{

"ID": "Pega_API_021",

"message": "Unauthorized access: If-Match does not match ETag",

"pxObjClass": "Pega-API-Error"

}

]

}