Data Logging Service in Google Sheets (node.js)

A simple Node.js module for logging in Google Sheets.

Installation

Basic Usage

• Create a Google Sheets File and give access to the Service Account as described in the Authentcation secion.

• Add the following headers (case-sensitive) to your sheet:

  • Log Id
  • Log Message
  • Log Time

• Import the module and use as shown below.

var GoogleSheetLogger = require("google-sheets-logger");
var creds = require("./google-generated-creds.json");

// Spreadsheet key is the long id in the sheets URL
var Logger = new GoogleSheetLogger("<Spreadsheet Key>", creds);

Logger.log("1", "Sample Log Message", "2019-10-08 12:49:44");

// When Timestamp is not passed, it adds the current time as the Timestamp of the Log Message by default.
Logger.log("1", "Sample Log Message with no Timestamp");

// To add logs in sheets other than the first one of your workbook, pass the sheet index as the 4th argument.
// Index starts at 1.
Logger.log("1", "Sample Log Message", "2019-10-08 12:49:44", 3);

Authentication

IMPORTANT: Google recently deprecated their ClientLogin (username+password) access, so things are slightly more complicated now. Older versions of this module supported it, so just be aware that things changed.

Service Account (recommended method)

This is a 2-legged oauth method and designed to be "an account that belongs to your application instead of to an individual end user". Use this for an app that needs to access a set of documents that you have full access to. (read more)

Setup Instructions

1. Go to the Google Developers Console
2. Select your project or create a new one (and then select it)
3. Enable the Drive API for your project

• In the sidebar on the left, expand APIs & auth > APIs
• Search for "drive"
• Click on "Drive API"
• click the blue "Enable API" button

4. Create a service account for your project

• In the sidebar on the left, expand APIs & auth > Credentials
• Click blue "Add credentials" button
• Select the "Service account" option
• Select "Furnish a new private key" checkbox
• Select the "JSON" key type option
• Click blue "Create" button
• your JSON key file is generated and downloaded to your machine (it is the only copy!)
• note your service account's email address (also available in the JSON key file)

5. Share the doc (or docs) with your service account using the email noted above

Further possibilities & to-do

• Enable logging on public sheets.
• Create Header automatically using the module.

Links

• https://developers.google.com/google-apps/spreadsheets/

License

google-sheets-logger is published under the MIT license. For more information, see the accompanying LICENSE file.