add api with example usage

src/api.js

@@ -0,0 +1,7 @@
+import Axios from 'axios'
+
+export function getMap(x, y) {
+  return Axios.get(`http://169.254.61.222:5000/generate/${x}/${y}`).then(
+    data => data.data
+  )
+}

src/index.js

@@ -4,6 +4,7 @@ import React from 'react'
 import ReactDOM from 'react-dom'
 
 import { App } from './App'
+import { getMap } from './api'
 
 function createRootElement() {
   const body = document.getElementsByTagName('body')[0]
@@ -13,3 +14,7 @@ function createRootElement() {
   return root
 }
 ReactDOM.render(<App />, createRootElement())
+
+getMap(10, 20).then(map => {
+  console.log(map)
+})