Authentication Error

Question

I have been trying to call this api using Http Client in C# and everytime I run it I get error 407 Authentication required I used the code snippet provided so what can I do to resolve this issue?

Yawin Tutor · Answer

use shell->cURL to test the api in command line / terminal.
build the api call as per the language you use.

curl --request POST \
	--url https://yawin-calculator.p.rapidapi.com/fdcalculator \
	--header 'X-RapidAPI-Host: yawin-calculator.p.rapidapi.com' \
	--header 'X-RapidAPI-Key: xxxxxxxxxxxxxxxxxxxx' \
	--header 'content-type: application/json' \
	--data '{
    "amount": "100000",
    "interest": "10",
    "duration": 60,
    "compoundPeriod": 3,
    "tax": 30,
    "inflation": 5,
    "firstMonth": "2021-Jan",
    "paginationPageNumber": "1",
    "paginationPageSize": "12",
    "ignoreSchedule": false
}'

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Authentication Error