fix: formatting + README + extra connection null checks

README.md

@@ -6,7 +6,7 @@ import { RequestManager, HTTPTransport, Client } from '@open-rpc/client-js';
 const transport = new HTTPTransport('http://localhost:8545');
 const client = new Client(new RequestManager([transport]));
 const result = await client.request(‘addition’, [2, 2]);
-// => 4
+// => { jsonrpc: '2.0', id: 1, result: 4 }
 ```
 
 ### Contributing

src/example.ts

@@ -1,12 +1,7 @@
-import Client from ".";
-import RequestManager from "./RequestManager";
-import Transport from "./transports/HTTPTransport";
-
-const t = new Transport("http://localhost:8545");
-
+import { Client, RequestManager, HTTPTransport } from ".";
+const t = new HTTPTransport("http://localhost:3333");
 const c = new Client(new RequestManager([t]));
 
-// make request for eth_blockNumber
-c.request("eth_blockNumber", []).then((b: any) => {
-  console.log('in then', b); //tslint:disable-line
+c.request("addition", [2, 2]).then((result: any) => {
+  console.log('addition result: ', result); // tslint:disable-line
 });

src/transports/Transport.ts

@@ -1,4 +1,3 @@
-
 export default interface ITransport {
   connect(): Promise<any>;
   close(): void;

src/transports/WebSocketTransport.ts

@@ -2,7 +2,7 @@ import WebSocket from "isomorphic-ws";
 import ITransport from "./Transport";
 
 class WebSocketTransport implements ITransport {
-  public connection: WebSocket | undefined;
+  public connection: WebSocket;
   constructor(uri: string) {
     this.connection = new WebSocket(uri);
   }
@@ -18,23 +18,14 @@ class WebSocketTransport implements ITransport {
     });
   }
   public onData(callback: any) {
-    if (!this.connection) {
-      return;
-    }
     this.connection.addEventListener("message", (ev: MessageEvent) => {
       callback(ev.data);
     });
   }
   public sendData(data: any) {
-    if (!this.connection) {
-      return;
-    }
     this.connection.send(data);
   }
   public close() {
-    if (!this.connection) {
-      return;
-    }
     this.connection.close();
   }
 }