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Fiddler delayed interface response time and weak network test

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Posted on 6/14/2022 9:17:48 PM | | | |
Requirements: In special cases, there will be an exception in a certain piece of JS code, and the exception is caused by the user clicking a button while the response of a certain interface is too slow. This article uses the Fiddler tool to implement delayed interface response times.

For example:Accurate interceptionhttps://www.itsvse.com/GET requestto return the response content with a delay of 10 seconds, as shown in the following figure:



Open Fiddler and switch to the AutoResponder tab, and create a new rule as follows:





AutoResponder Refer to the official documentation:The hyperlink login is visible.

Weak network testing

Set the speed of the analog modulator, manually set the uplink and downlink rates, the principle of simulating network speed, how long to delay (delay) every 1kb upload/download, open Rules -> Customize Rules settings as follows:



//Delay sends by 300ms per KB uploaded. Sends 1 KB of data every 300 ms of delay, that is, 3 KB of data is sent every 1 s (0.3 seconds of delay for every 1 KB of data uploaded)



//Delay receives by 150ms per KB downloaded.



Here we use the calculation formula to get the uplink latency and downlink latency, 2G takes the approximate integer of 3000ms and 1000ms, and 3G takes 20ms and 2.5ms


Once the file is saved, tick Rules -> Performances ->Simulate Modem SpeedsOpen. As shown below:



(End)





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