make relay.connect() an awaitable thing.

README.md

@@ -53,7 +53,7 @@ import {
 } from 'nostr-tools'
 
 const relay = relayInit('wss://relay.example.com')
-relay.connect()
+await relay.connect()
 
 relay.on('connect', () => {
   console.log(`connected to ${relay.url}`)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "1.0.0-beta2",
+  "version": "1.0.0-rc1",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",

relay.ts

@@ -59,14 +59,17 @@ export function relayInit(url: string): Relay {
     }
   } = {}
 
-  function connectRelay() {
+  async function connectRelay(): Promise<void> {
+    return new Promise((resolve, reject) => {
       ws = new WebSocket(url)
 
       ws.onopen = () => {
         listeners.connect.forEach(cb => cb())
+        resolve()
       }
       ws.onerror = () => {
         listeners.error.forEach(cb => cb())
+        reject()
       }
       ws.onclose = async () => {
         listeners.disconnect.forEach(cb => cb())
@@ -121,11 +124,12 @@ export function relayInit(url: string): Relay {
           }
         }
       }
+    })
   }
 
   async function connect(): Promise<void> {
     if (ws?.readyState && ws.readyState === 1) return // ws already open
-    connectRelay()
+    await connectRelay()
   }
 
   async function trySend(params: [string, ...any]) {