fix: update code in readme (#395)

README.md

@@ -44,12 +44,12 @@ Below is a simple example calling the elevation method on the client class.
 Import the Google Maps Client using Typescript and ES6 module:
 
 ```js
-import {Client} from "@googlemaps/google-maps-services-js";
+import {Client, Status} from "@googlemaps/google-maps-services-js";
 ```
 
 Alternatively using JavaScript without ES6 module support:
 ```js
-const Client = require("@googlemaps/google-maps-services-js").Client;
+const {Client, Status} = require("@googlemaps/google-maps-services-js");
 ```
 
 Now instantiate the client to make a call to one of the APIs.
@@ -61,14 +61,18 @@ client
   .elevation({
     params: {
       locations: [{ lat: 45, lng: -110 }],
-      key: process.env.GOOGLE_MAPS_API_KEY
+      key: "asdf",
     },
-    timeout: 1000 // milliseconds
+    timeout: 1000, // milliseconds
   })
-  .then(r => {
-    console.log(r.data.results[0].elevation);
+  .then((r) => {
+    if (r.data.status === Status.OK) {
+      console.log(r.data.results[0].elevation);
+    } else {
+      console.log(r.data.error_message);
+    }
   })
-  .catch(e => {
+  .catch((e) => {
     console.log(e);
   });
 ```

e2e/client.test.ts

@@ -16,9 +16,6 @@
 
 import { Client, defaultAxiosInstance, defaultHttpsAgent } from "../src";
 
-import axios from "axios";
-import { elevation } from "../src/elevation";
-
 test("client should work with defaults", async () => {
   const location = { lat: 10, lng: 20 };
 
@@ -61,9 +58,9 @@ test("client should work with instance", async () => {
 });
 
 test("readme example using client", async () => {
-  const Client = require("../src").Client;
+  const { Client, Status } = require("../src");
   const client = new Client({});
-  
+
   client
     .elevation({
       params: {
@@ -73,11 +70,33 @@ test("readme example using client", async () => {
       timeout: 1000, // milliseconds
     })
     .then((r) => {
+      expect(r.data.status).toEqual(Status.OK);
       expect(r.data.results[0].elevation).toBeGreaterThan(2000);
       expect(r.data.results[0].elevation).toBeLessThan(3000);
     })
     .catch((e) => {
-      console.log(e)
-      throw "Should not error"
+      console.log(e);
+      throw "Should not error";
+    });
+});
+
+test("readme example using client fails correctly", async () => {
+  const { Client, Status } = require("../src");
+  const client = new Client({});
+
+  client
+    .elevation({
+      params: {
+        locations: [{ lat: 45, lng: -110 }],
+        key: "invalid key",
+      },
+      timeout: 1000, // milliseconds
+    })
+    .then((r) => {
+      expect(r.data.status).toEqual(Status.REQUEST_DENIED);
+    })
+    .catch((e) => {
+      console.log(e);
+      throw "Should not error";
     });
 });