API Testing : SELENIUM : HTTP Status Code : 412 : Precondition Failed

Опубликовано: 21 Апрель 2023
на канале: SDET Automation Testing Interview Pro
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API Testing : SELENIUM : HTTP Status Code : 412 : Precondition Failed

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API Testing : SELENIUM : HTTP Status Code : 412 : Precondition Failed

HTTP Status Code 412, "Precondition Failed", is a client error response code that indicates that one or more conditions set in the request header fields have not been met, and therefore the server is unable to process the request.

In other words, this status code is returned when a client's request contains certain preconditions that are not met. These preconditions can be specified in the request header using conditions such as If-Modified-Since, If-Match, If-None-Match, If-Unmodified-Since, etc.

Some common reasons for receiving a 412 response code are:

If-Modified-Since header is set, and the requested resource has not been modified since the specified date and time.
If-Match header is set, and the ETag of the requested resource does not match the one specified in the header.
If-None-Match header is set, and the ETag of the requested resource matches the one specified in the header.
If-Unmodified-Since header is set, and the requested resource has been modified since the specified date and time.
In API testing, you may encounter a 412 response when testing endpoints that require certain preconditions to be met before processing a request. In order to handle this status code, you should check the request headers and ensure that the preconditions are met before resending the request.