Build a Calculator

Setup

Create a folder named calculator in your go-academy directory. We don't need to create additional packages for this project. We can keep everything in the package main.

HTTP Server

We are going to use Go's built-in package net/http to create a calculator server. The server should have 4 API GET endpoints, each endpoint serves a different arithmetic operation.

For example,

• api/add does addition

• api/sub does subtraction

• api/mul does multiplication

• api/div does division

Each endpoint takes in 2 query parameters, left operand and right operand, denoted by lop and rop.

Project Calculator

https://www.youtube.com/watch?v=_baFDzyZxPg&feature=youtu.bewww.youtube.com

Source

GitHub