JMETER - HTTP Request - how to handle Client secret contain special character ~ character

[Quynh Ly]

My client secret contains a tilda sign ~.
My goal is to use urlencode function for the client secret.  Then, the econded client secret will be used in JSON Extractor and Beanshell Assertion.  I tried this but still get the invalid client secret.  Can you please advise.

[Dmitri T]

We cannot "advice" you anything because we don't know how exactly this "tilda" needs to be encoded, i.e. which encoding needs to be used

For example JavaScript encodeURIComponent leaves the "tilda" intact and percent encoding translates it to %7E

Also since JMeter 3.1 you're supposed to use JSR223 Test Elements and Groovy language for scriptingso it might be a good moment for migrating to JSR223 Assertion

[Quynh Ly]

Good morning Dmitri,

Thank you very much for your suggestion.  I will review the JSR223 Aassertion.  Mean while, we use charset=utf-8.  Is there a temp solution for this?  Thank you!!