A demonstration of how to store Particle device data in Google Cloud Datastore
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Latest commit 2ee2f03 Nov 19, 2018


Particle --> Google Cloud Pub/Sub --> Datastore Tutorial

This tutorial code is intended to allow data to flow from Google Cloud Pub/Sub to Google Cloud Datastore. This is part of a larger tutorial for sending data from Particle devices into a hosted database.

You can find the full documentation on the Particle <> Google Cloud integration on our docs .


Before this script will become useful to you, please make sure you have done all of the following:

  1. Have Particle device(s) collecting data and publishing events

  2. Have a Google Cloud Platform account with a project and a Pub/Sub topic

  3. Enabled the Google Cloud Platform integration on Particle

  4. Created a Google Cloud Platform private key

  5. Created a Google Cloud Pub/Sub subscription

For all required steps, check out the full tutorial

Setup and configuration

Clone the repository

git clone https://github.com/particle-iot/google-cloud-datastore-tutorial.git

Add your Private Key

Create a file in the root of your local repository called gcp_private_key.json

Next, paste in the contents of your Google Cloud Platform JSON private key. It should look something like this:

  "type": "service_account",
  "private_key_id": "[PRIVATE_KEY_ID]",
  "private_key": "[PRIVATE_KEY]"
  "client_email": "[CLIENT_EMAIL]",
  "client_id": "[CLIENT_ID]",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://accounts.google.com/o/oauth2/token",
  "auth_provider_x509_cert_url": "[CERT_URL]",
  "client_x509_cert_url": "[CLIENT_CERT_URL]"

Configure the Script

Open up tutorial.js and update the config object for your Google Cloud Platform configuration:

let config = {
	gcpProjectId: '[YOUR PROJECT ID]',
	gcpPubSubSubscriptionName: '[YOUR PUB/SUB SUBSCRIPTION NAME]',
	gcpServiceAccountKeyFilePath: './gcp_private_key.json'
  • gcpProjectId: Your Google Cloud Platform Project ID
  • gcpPubSubSubscriptionName: Your Google Cloud Platform Pub/Sub topic's subscription name

Running the application

  • Install dependencies: npm install
  • Run the script: node tutorial.js