DEV Community

Cover image for Node.js write data in a Google Sheet
Chris Bongers
Chris Bongers

Posted on • Originally published at

Node.js write data in a Google Sheet

In this series, we are using Google sheets as a database.
Yesterday we had a look at reading data from a Google sheet.
Today we are going to take a step further and actually write data to the sheet.

We will be using the same script to begin with.
So if your looking for the starting explanation on authentication, visit the article on reading google sheet in node.js.

Today's exercise is going to work like this:

Node Google sheet insert

Node.js write data to Google sheet

First of all, we had our initial app setup to only being able to write so we need to give it new permissions:


const SCOPES = [''];
Enter fullscreen mode Exit fullscreen mode

To reflect the whole of Google sheets API's

const SCOPES = [''];
Enter fullscreen mode Exit fullscreen mode

Note: We can't use Google's own sheet, so copy the sheet to your own version.

If we already had a token.json, remove this and rerun the node . command to get a new one.

Now let's change the action we do once we read the credentials.json file.
We used to call the listMajors function, so now we are going to change that to be writeData

The function will now look like this:

fs.readFile('credentials.json', (err, content) => {
    if (err) return console.log('Error loading client secret file:', err);
    authorize(JSON.parse(content), writeData);
Enter fullscreen mode Exit fullscreen mode

Great stuff, we can now go ahead and create this writeData function

function writeData(auth) {
    const sheets = google.sheets({ version: 'v4', auth });
    let values = [
            '1. Freshman',
        // Potential next row
    const resource = {
        spreadsheetId: '1XnbJ5JHeJS2KsTzz6wXtwASb5mkwkICn_XP_pDJIyTA',
        range: 'Class Data!A1',
        valueInputOption: 'RAW',
        resource: resource,
    }, (err, result) => {
        if (err) {
            // Handle error
        } else {
            console.log('%d cells updated on range: %s',,;
Enter fullscreen mode Exit fullscreen mode

We start by defining our new sheets API object and pass it our authentication.
Then we define our "new" object. We have to convert this into an Object for the API to accept it.
Then we call the Sheets API and use the append method.

For this endpoint, we are passing four items:

  • spreadsheetId: Your unique spreadsheet id, you can find this in the URL
  • range: For this example, we are using the A1 row. It will automatically append the new data at the first available row.
  • valueInputOption: This can be used to pass formula. But we use 'RAW' data.
  • resource: The actual new object.

We then get an error or result object, in our case we console.log both of them.
As the result you get a full object, stating which rows have been affected by this query.

That's it. We can now append data to our Google sheet!

You can find this version on GitHub.

Thank you for reading, and let's connect!

Thank you for reading my blog. Feel free to subscribe to my email newsletter and connect on Facebook or Twitter

Top comments (0)