Set up WebSocket for email sending
The actual sending doesn't happen yet, but all the frontend infrastructure is set up all right!
This commit is contained in:
Badri Sunderarajan
parent
66056cbf0b
commit
9b630ae021
4 changed files with 220 additions and 75 deletions
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@ -21,6 +21,7 @@
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"cors": "^2.8.5",
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"dotenv": "^8.2.0",
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"express": "^4.17.1",
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"express-ws": "^4.0.0",
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"importabular": "^0.2.9",
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"showdown": "^1.9.1",
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"sirv-cli": "^1.0.0"
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37
server.js
37
server.js
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@ -3,6 +3,8 @@ const express = require('express')
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require('dotenv').config()
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const app = express()
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var expressWs = require('express-ws')(app)
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const port = process.env.port || 5000
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const cors = require('cors')
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@ -18,10 +20,43 @@ app.get('/air', (req, res) => {
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})
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})
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app.ws('/hit-send', (ws, request) => {
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console.log('Hitting send on some emails!')
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ws.on('message', (message) => {
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try {
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message = JSON.parse(message)
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} catch(err) {
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ws.send(JSON.stringify({
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success: false,
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error: "We can't understand what you're saying! Me speak JSON only.",
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}))
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return
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}
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console.log(`\n\n-------------------------- BEGIN EMAIL --------------------------\n`)
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console.log(`From: ${message.from}\nTo:${message.to}\n\n${message.text}`)
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console.log(`\n--------------------------- END EMAIL ---------------------------`)
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setTimeout(() => {
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ws.send(JSON.stringify({
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success: true,
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from: message.from,
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to: message.to,
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}))
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}, 2000)
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})
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ws.on('close', () => {
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console.log('socket closed')
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})
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})
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app.use(express.static('public'))
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app.get('*', (req, res) => {
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app.get('/', (req, res) => {
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res.sendFile(path.resolve(__dirname, 'public', 'index.html'))
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})
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app.listen(port, () => {
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console.log(`Server is up at port ${port}`)
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})
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@ -195,9 +195,81 @@
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function prev() {
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step -= 1
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}
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let nowSending
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/**
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* Hit Send
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*
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* collates all the data for sending, and passes it
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* on to the backend for actual processing. Note that here we
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* cookie-cut the emails on the frontend itself; the backend
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* just blindly takes what it gets. We're doing this so that we
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* can use the same getPreview() function and be consistent: we
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* don't want the final to suddenly end up looking very different
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* from the preview!
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*/
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function hitSend() {
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step = 4
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let emails = []
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// process the 'i'th row of the sheet, one by one
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for (let i=0; i<sheetOne.getData().length; i++) {
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let previewData = getPreview(i)
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// skip if email is blank
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if (!previewData.email) continue
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// add it to the list of emails to be sent
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emails.push({
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from: fromEmail,
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to: previewData.email,
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text: previewData.text,
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html: converter.makeHtml(previewData.text),
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})
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}
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// okay, now let's open a socket to the server!
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let socketProtocol = (window.location.protocol === 'https:' ? 'wss:' : 'ws:')
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let socketUrl = socketProtocol + '//' + window.location.host + window.location.pathname + 'hit-send/'
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let socket = new WebSocket(socketUrl)
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socket.onopen = function() {
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nowSending = emails.pop()
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socket.send(JSON.stringify(nowSending))
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}
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socket.onmessage = (message) => {
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try {
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message = JSON.parse(message.data)
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} catch (err) {
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console.error(`Received malformed response from server: ${message.data}`)
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return
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}
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if (message.success) {
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console.log(`${message.to}'s email sent successfully!`)
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// send the next one
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nowSending = emails.pop()
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if (!!nowSending) {
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socket.send(JSON.stringify(nowSending))
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console.log(`Sending: ${nowSending.to}`)
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} else {
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socket.close()
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step = 2
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}
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} else {
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console.error('Something went wrong :(')
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step = 3
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}
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}
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}
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</script>
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<main>
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{#if step < 4}
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<img src="/assets/email-baker.png" class="main-pic" alt="Email Oven"/>
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<h1>Chip <span class="highlight">Choc</span></h1>
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<h2>Cookie-cutter emails made easy.</h2>
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@ -228,7 +300,7 @@
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{/if}
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{#if step >= 2}
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<h3 class="mt-3">Step 1</h3>
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<h3 class="mt-3">Step 2</h3>
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<div class="instructions">
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<p>Now, fill in the fields for each user. (You can also copy-paste rows and columns directly from Air, if the ordering is right!)</p>
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</div>
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@ -274,10 +346,28 @@
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<p>Did you look through all the previews?</p>
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<p>Have you double-checked the names and email IDs to make sure they match?</p>
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</div>
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<button>Hit send!</button> <button on:click={prev}>Ummmm..</button>
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<button on:click={hitSend}>Hit send!</button> <button on:click={prev}>Ummmm..</button>
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{/if}
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{/if}
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{/if}
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{#if step == 4}
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<div class="instructions">
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{#if !!nowSending }
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<div class="cookie-preview">
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<div class="preview-header">
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<p>From: {nowSending.from || '[NOBODY!!!]'}</p>
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<p>To: {nowSending.to || '[NOBODY!!!]'}</p>
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<hr />
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{@html nowSending.html}
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</div>
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</div>
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{/if}
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<h1>Chip <span class="highlight">Choc</span></h1>
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<h2>Your cookies are being cut...</h2>
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</div>
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{/if}
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</main>
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19
yarn.lock
19
yarn.lock
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@ -125,6 +125,11 @@ array-flatten@1.1.1:
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resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
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integrity sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=
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async-limiter@~1.0.0:
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version "1.0.1"
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resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
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integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
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balanced-match@^1.0.0:
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version "1.0.2"
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resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
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@ -358,6 +363,13 @@ etag@~1.8.1:
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resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
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integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
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express-ws@^4.0.0:
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version "4.0.0"
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resolved "https://registry.yarnpkg.com/express-ws/-/express-ws-4.0.0.tgz#dabd8dc974516418902a41fe6e30ed949b4d36c4"
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integrity sha512-KEyUw8AwRET2iFjFsI1EJQrJ/fHeGiJtgpYgEWG3yDv4l/To/m3a2GaYfeGyB3lsWdvbesjF5XCMx+SVBgAAYw==
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dependencies:
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ws "^5.2.0"
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express@^4.17.1:
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version "4.17.1"
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resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
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@ -1148,6 +1160,13 @@ wrappy@1:
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resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
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integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
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ws@^5.2.0:
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version "5.2.2"
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resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
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integrity sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==
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dependencies:
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async-limiter "~1.0.0"
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ws@^7.4.3:
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version "7.4.5"
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resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.5.tgz#a484dd851e9beb6fdb420027e3885e8ce48986c1"
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