@lachlanjcIMA @ NYU

CC – Week 10: Data – Project

This week I’m making a simple website to find your Congressional Representative, using the Google Civic API + Next.js/React.

Backend API

First, we need to interface with the Google Civic API, which is pretty messy. I’m using the Lodash utility library + isomorphic-unfetch, my favorite fetch ponyfill.

This is a Next.js API route with address as a query param, which means it’s accessible at /api/rep?address=…, and returns JSON.

import { find } from 'lodash'
import fetch from 'isomorphic-unfetch'
export default (req, res) => {
const { address } = req.query
const payload = {
key: 'AIzaSyAC098ZQK-jP_Q5fRpG_0of9LCTvOtdEFA',
address,
fields: 'divisions,officials',
includeOffices: true.toString()
}
const query = Object.keys(payload)
.map(key => [key, payload[key]].map(encodeURIComponent).join('='))
.join('&')
const keyMatch = key =>
key.match(
/ocd-division\/country:us\/(?:state|district):(\w+)(?:\/cd:)(\d+)/
)
const url = `https://www.googleapis.com/civicinfo/v2/representatives?${query}`
fetch(url)
.then(civic => civic.json())
.then(civic => {
const divKey = find(Object.keys(civic.divisions), key => keyMatch(key))
const record = civic.divisions[divKey]
const rep = civic.officials[record.officeIndices[0] + 1]
res.json(rep)
})
.catch(e => {
console.error(e)
})
}

Frontend

Setting up pages/index.js, here’s the most basic form of the homepage functionality:

  • H1 heading describing the page
  • Label + text input for address
  • Submit button for searching
  • On search, ping the backend while showing “loading…”
  • When results arrive, render (upcoming) Profile component
import React, { useState } from 'react'
import fetch from 'isomorphic-unfetch'
import Profile from '../components/profile'
export default () => {
const [address, setAddress] = useState('')
const [rep, setRep] = useState(null)
let value = <div />
const fetchRep = async () => {
const res = await fetch(`/api/rep?address=${encodeURIComponent(address)}`)
const data = await res.json()
setRep(data)
}
const onSubmit = e => {
e.preventDefault()
value = <p>Loading…</p>
fetchRep()
}
const onChange = e => {
setAddress(e.target.value)
}
if (rep) value = <Profile {...rep} />
return (
<main>
<h1>Find Your Representative</h1>
<form onSubmit={onSubmit}>
<div>
<label htmlFor="address">Home address</label>
<input type="text" name="address" onChange={onChange} />
</div>
<input type="submit" />
</form>
{value}
</main>
)
}

Profile component

Here’s a basic version of Profile:

  • Show profile picture if one is provided
  • Show name + party
  • Add a button to call their phone number
  • Show elegant links to their websites
const Profile = ({ name, party, phones = [], photoUrl, urls = [] }) => (
<article>
<header>
{photoUrl && <img src={photoUrl} />}
<h2>{name}</h2>
<p>{party}</p>
</header>
<section>
{phones && <a href={`tel:${phones[0]}`}>{phones[0]}</a>}
{urls
? urls.map(url => (
<a href={url} target="_blank" key={url}>
{url
.replace('http://', '')
.replace('https://', '')
.replace('www.', '')}
</a>
))
: null}
</section>
</article>
)
export default Profile

Styling

I used styled-jsx, which is built into Next.js, after spending over an hour trying to get Theme UI working correctly. I wrote responsive CSS on the homepage & the profile components, giving the site some basic design with ~150 lines of CSS.

Deployment

First, I added some social meta tags, so the site is more easily shareable.

<Head>
<title>Find Your Rep</title>
<meta property="twitter:card" content="summary" />
<meta property="twitter:site" content="@lachlanjc" />
<meta
property="twitter:description"
content="Find and contact your Congressional Representative."
/>
<meta property="og:title" content="Find Your Rep" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://usrep.now.sh/" />
<meta
property="description"
content="Find and contact your Congressional Representative."
/>
</Head>

Second, I published to GitHub.

Third, I deployed on now.sh: usrep.now.sh

Final source code

Lachlan's avatar