Integrating Google Sheets in an Express.js application involves syncing data

Question

Integrating Google Sheets in an Express.js application involves syncing data

Is it possible to implement a feature in Express JS that allows users to authorize their Google account with our app? This way, we can access the google sheet from their accounts and display it within our express app. If users make changes to the spreadsheet on our app, will it automatically save those changes and update the google sheet?

Additionally, are there any tutorials or documentation available for implementing this functionality?

node.js express google-sheets integrate authorize

Answer 1

Answer №1

Pre-Requisite:- Setting up Access Credentials

Go to the console.cloud.google.com.
If you don't have an existing project, create a new one.
After selecting the project, go to APIs and services.
Click on ENABLE APIS AND SERVICES.
Search for google sheets API in the search box and enable it for the chosen project.
Once the API is enabled, select CREATE CREDENTIALS to access it. Choose Service Account from the drop-down menu.
Provide the necessary details on the next screen and click CREATE.
The following two steps are optional, simply proceed with CONTINUE and then DONE.
Copy the email address and save it. Click on the email address to move to the next screen. Under keys, choose Create new key.
Select JSON as the key type and click Create. This action will download a JSON file of the Key.
Move the downloaded JSON file into the project folder, rename it as keys.json due to its long name.

The format of the file should be like this:

{
  "type": "service_account",
  "project_id": "YOUR PROJECT ID",
  "private_key_id": "YOUR PRIVATE KEY ID",
  "private_key": "YOUR PRIVATE KEY ",
  "client_email": "YOUR CLIENT EMAIL",
  "client_id": "YOUR CLIENT ID",
  "auth_uri": "YOUR AUTH URI",
  "token_uri": "YOUR TOKEN URI",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/..."
}

1. Installing googleapis package

npm install –save googleapis

2. Requiring googleapis in the root file

const { google } = require("googleapis");

3. Configuring the auth object

 const auth = new google.auth.GoogleAuth({
        keyFile: "keys.json", //the key file
        scopes: "https://www.googleapis.com/auth/spreadsheets", 
    });

4. Creating a client instance of the auth object

const authClientObject = await auth.getClient();

5. Initializing Google Sheets API instance

const googleSheetsInstance = google.sheets({ version: "v4", auth: authClientObject });

6. Extracting the spreadsheet ID from URL

The alphanumeric value between /d/ and /edit in your Google Sheets URL is the spreadsheet ID.

// spreadsheet id
const spreadsheetId = "YOUR SPREADSHEET ID";

7. Writing data to the spreadsheet

Writing data to a spreadsheet through the frontend

To write into the spreadsheet, use the auth object, spreadsheet ID, cell range, user-entered value, and resource object containing the data to be inserted.

The values array within the resource object contains the information to be entered into the cells, where the array length corresponds to the number of columns in the sheet.

await googleSheetsInstance.spreadsheets.values.append({
    auth,
    spreadsheetId,
    range: "Sheet1!A:B",
    valueInputOption: "USER_ENTERED",
    resource: {
        values: [["Git followers tutorial", "Mia Roberts"]],
    },
});

Answer 2

Pre-Requisite:- Setting up Access Credentials

Go to the console.cloud.google.com.
If you don't have an existing project, create a new one.
After selecting the project, go to APIs and services.
Click on ENABLE APIS AND SERVICES.
Search for google sheets API in the search box and enable it for the chosen project.
Once the API is enabled, select CREATE CREDENTIALS to access it. Choose Service Account from the drop-down menu.
Provide the necessary details on the next screen and click CREATE.
The following two steps are optional, simply proceed with CONTINUE and then DONE.
Copy the email address and save it. Click on the email address to move to the next screen. Under keys, choose Create new key.
Select JSON as the key type and click Create. This action will download a JSON file of the Key.
Move the downloaded JSON file into the project folder, rename it as keys.json due to its long name.

The format of the file should be like this:

{
  "type": "service_account",
  "project_id": "YOUR PROJECT ID",
  "private_key_id": "YOUR PRIVATE KEY ID",
  "private_key": "YOUR PRIVATE KEY ",
  "client_email": "YOUR CLIENT EMAIL",
  "client_id": "YOUR CLIENT ID",
  "auth_uri": "YOUR AUTH URI",
  "token_uri": "YOUR TOKEN URI",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/..."
}

1. Installing googleapis package

npm install –save googleapis

2. Requiring googleapis in the root file

const { google } = require("googleapis");

3. Configuring the auth object

 const auth = new google.auth.GoogleAuth({
        keyFile: "keys.json", //the key file
        scopes: "https://www.googleapis.com/auth/spreadsheets", 
    });

4. Creating a client instance of the auth object

const authClientObject = await auth.getClient();

5. Initializing Google Sheets API instance

const googleSheetsInstance = google.sheets({ version: "v4", auth: authClientObject });

6. Extracting the spreadsheet ID from URL

The alphanumeric value between /d/ and /edit in your Google Sheets URL is the spreadsheet ID.

// spreadsheet id
const spreadsheetId = "YOUR SPREADSHEET ID";

7. Writing data to the spreadsheet

Writing data to a spreadsheet through the frontend

To write into the spreadsheet, use the auth object, spreadsheet ID, cell range, user-entered value, and resource object containing the data to be inserted.

The values array within the resource object contains the information to be entered into the cells, where the array length corresponds to the number of columns in the sheet.

await googleSheetsInstance.spreadsheets.values.append({
    auth,
    spreadsheetId,
    range: "Sheet1!A:B",
    valueInputOption: "USER_ENTERED",
    resource: {
        values: [["Git followers tutorial", "Mia Roberts"]],
    },
});

Integrating Google Sheets in an Express.js application involves syncing data

Answer №1

Pre-Requisite:- Setting up Access Credentials

1. Installing googleapis package

2. Requiring googleapis in the root file

3. Configuring the auth object

4. Creating a client instance of the auth object

5. Initializing Google Sheets API instance

6. Extracting the spreadsheet ID from URL

7. Writing data to the spreadsheet

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