How to make an extension PLZ SHOW CODING

Please change the category to Off Topic..
If you want to create extension to communicate with apis you can:
see here:
https://www.baeldung.com/java-http-request
And here:

And also here:

Also you can use the web component blocks to communicate with apis using post,get and put blocks without using any extension..You can use json utils extension as @Yash_Agarwal_376 said.. See here:

And here for json utils extension:

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