how to retrieve the request body parameters in magento 2.0

Question

Client request url with some POST data. How can I retrieve that variable in magento?

I have to retrieve that in JSON format variable and do the operation using those variables.

Answer 1

We insert our JSON data in request body in this form:

{
    "firstname":"vijay",
    "secondname":"bokka",
    "email":"[email protected]"
}

As part of API implementation one method will be invoked when API URL is trigged.

To that method interface write:

apiinvokedmethod($firstname, $secondname, $email)
{

}

You can access value of $firstname automatically in the class where you implemented this interface class.

NOTE: The value of key in json and name of the method parameter should be equal.