Connecting NextJS Mini Project with Google Spreadsheets as Database

frasnym

Frastyawan Nym

Posted on February 11, 2021

Connecting NextJS Mini Project with Google Spreadsheets as Database

Did you know that we can use Google Sheets as our database?
Yes! We can do that šŸ‘.

Today, I will share step by step to do it.
I will use one of the Javascript Frontend Library to do this, it's NextJS.

So, let's get started! šŸš€

Create Your Google Project

  1. Go to your google console page
  2. Create your project, or you can visit through this Link šŸ”—
  3. šŸ”™ Back to APIs & Services page, click on ENABLE APIS AND SERVICES
  4. Search for Google Sheets API then enable it šŸ–±ļø Alt Text
  5. šŸ”™ Back again to APIs & Services page, click Credentials, CREATE CREDENTIALS, Service Account. Or through this Link šŸ”—
  6. Input required field and you can ignore optional field (of course šŸ˜…)
  7. šŸ”™ Back to your Credentials page, under Service Accounts you will see your email. Copy that!
  8. Open your Service Account. Click on ADD KEY, choose JSON as type. Then your credentials will be automatically downloaded. This will be used when connecting you NextJS to the sheets. Alt Text
  9. Now you can create new spreadsheets or use your existing one, Open it
  10. Share it to your Service Account Email you just copied a second ago
  11. This step is done šŸŽŠ

Create NextJS App

Reference: NextJS Docs

  1. Create an app```

npx create-next-app [APP_NAME]

or

yarn create next-app [APP_NAME]

2. šŸƒā€ā™‚ļø Run your app with `npm run dev`, wait until server started
3. Without making any changes, you can access you page on **localhost:3000**. You will see awesome Next starter page šŸ˜Ž
![Alt Text](https://dev-to-uploads.s3.amazonaws.com/i/1s90tzp88i3tgxq1f800.JPG)
4. Continue šŸš€, Setup Environment Variables
5. Create **env.local** file. You will need set this key-value pair. The value you can get on downloaded .JSON file before from google console```


GOOGLE_SHEETS_PRIVATE_KEY=[YOUR KEY]
GOOGLE_SHEETS_CLIENT_EMAIL=[YOUR ACCOUNT EMAIL]
SPREADSHEET_ID=[YOU CAN GET THIS ON URL OF YOUR SHEETS]


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  1. We will need googleapis package to help us doing this, so install it```

npm i googleapis

7. Next, create a file for connecting to our sheet. For me is under **libs/sheets.js**
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import { google } from 'googleapis';
export async function getEmojiList() {
try {
const target = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
const jwt = new google.auth.JWT(
process.env.GOOGLE_SHEETS_CLIENT_EMAIL,
null,
(process.env.GOOGLE_SHEETS_PRIVATE_KEY || '').replace(/\n/g, '\n'),
target
);

const sheets = google.sheets({ version: 'v4', auth: jwt });
const response = await sheets.spreadsheets.values.get({
  spreadsheetId: process.env.SPREADSHEET_ID,
  range: 'emoji', // sheet name
});

const rows = response.data.values;
if (rows.length) {
  return rows.map((row) => ({
    title: row[2],
    subtitle: row[3],
    code: row[4],
    browser: row[5],
    short_name: row[17],
    emojipedia_slug: row[18],
    descriptions: row[19],
  }));
}
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} catch (err) {
console.log(err);
}
return [];
}

### Description:
- We will specify our target connection
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const target = ["https://www.googleapis.com/auth/spreadsheets.readonly"];

- Declare our jwt for authentication
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const jwt = new google.auth.JWT(
process.env.GOOGLE_SHEETS_CLIENT_EMAIL,
null,
(process.env.GOOGLE_SHEETS_PRIVATE_KEY || '').replace(/\n/g, '\n'),
target
);

- Get the sheet data, don't forget to change **sheet name**
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const sheets = google.sheets({ version: 'v4', auth: jwt });
const response = await sheets.spreadsheets.values.get({
spreadsheetId: process.env.SPREADSHEET_ID,
range: 'emoji', // sheet name
});

- Declare the row as your sheet data
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const rows = response.data.values;
if (rows.length) {
return rows.map((row) => ({
title: row[2],
subtitle: row[3],
code: row[4],
browser: row[5],
short_name: row[17],
emojipedia_slug: row[18],
descriptions: row[19],
}));
}


That was a lot of text, now let's get the easy part šŸ˜¬
# Populate Your Data
This is my `index.js` file
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import Head from 'next/head';
import { getEmojiList } from '../libs/sheets';

export default function IndexPage({ emojis }) {
return (
<>


Title - FrasNym


{emojis[0].title}
</>
);
}

export async function getStaticProps(context) {
const emojis = await getEmojiList();
return {
props: {
emojis: emojis.slice(1, emojis.length), // remove sheet header
},
revalidate: 1, // In seconds
};
}

You can already see our data from `emojis` variable that passed through `props`.

As you expect, We load the data from **Google Sheets** via our `getEmojiList` function. Then we call that function from `getStaticProps` function and pass it as props to our component.

On `getStaticProps`, we pass `revalidate: 1` so we hope that NextJS page will render when our sheets updated (At most once every second).

# Summary
This tools will help us to do a small project with database easily.
šŸ’” FYI, You can insert to sheet via API too. You can connect this sheet with Your NodeJS with [google-spreadsheet](https://www.npmjs.com/package/google-spreadsheet) package, for example.

# Closing
That's all I can share with you for now šŸ˜Š
If you have any question, you can post it here.
Or maybe you can reach me on my [Twitter](https://twitter.com/frasnym) šŸ˜

Until then... šŸš€
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šŸ’– šŸ’Ŗ šŸ™… šŸš©
frasnym
Frastyawan Nym

Posted on February 11, 2021

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