Modern Shopify merchants rely heavily on Google Sheets for operational reporting, catalog management, pricing adjustments, and inventory controls. However, traditional CSV exports introduce latency, manual effort, and data inconsistencies. That is why a robust Google Sheets API Shopify integration is now a core requirement for engineering teams supporting fast-scaling eCommerce brands.

A more scalable, automation-driven solution is to connect Google Sheets to Shopify using the Shopify Admin API, Google Sheets API, and a secure Shopify OAuth 2.0 integration workflow. This architecture enables real-time Shopify data sync, eliminates manual data handling, and ensures API security and compliance.

In this technical guide, Citytech Software provides a step-by-step Shopify Google Sheets API integration tutorial using Node.js, demonstrating OAuth authentication, token lifecycle management, data sync automation, and enterprise-ready engineering practices.

What does this integration achieve

Implementing a real-time, bidirectional Shopify Google Sheets integration unlocks automated data pipelines that eliminate operational bottlenecks.

Key capabilities:

  • Sync Shopify products to Google Sheets automatically
  • Push inventory, price changes, or SKU attributes from Sheets to Shopify
  • Enable Google Sheets Shopify automation for dashboards, analytics, and forecasting
  • Build live Shopify order sync to Google Sheets for reporting and workflow automation

Real-world workflow example:

When an order is placed, your integrated Sheet can instantly record:

  • Customer profile data
  • Product SKUs
  • Quantities
  • Order value
  • Timestamps and fulfillment statuses

This enables merchants to replace manual exports with Shopify data export automation, allowing teams to operate on continuously updated datasets.

Understanding OAuth 2.0 Authentication

Both Google and Shopify rely heavily on OAuth 2.0, ensuring secure delegated API access without exposing user credentials. OAuth is the backbone of any secure Shopify API authentication workflow.

Simplified OAuth Flow:

  • Redirect user to Google OAuth consent
  • User approves your application
  • Google returns an authorization code
  • Your backend exchanges this code for:
    • Access token
    • Refresh token
  • Access tokens authorize API calls
  • Refresh tokens automatically renew expired sessions

Citytech Software builds advanced middleware implementing Google Sheets OAuth setup, automatic token refresh, retry logic, and encrypted credential storage, essential for enterprise-grade deployments.

Prerequisites

Shopify Requirements

To prepare for a Shopify Admin API integration, configure the following:

  • Shopify Partner account
  • Custom/Private App created under
    Admin → Settings → Apps → Develop apps
  • Selected Admin API scopes such as:
    • read_products, write_products
    • read_orders, write_inventory
  • Admin API Access Token & API Key

Google Requirements

  • Google Cloud Project
  • Google Sheets API + Google Drive API enabled
  • OAuth 2.0 credentials (Client ID + Secret + Redirect URI)

Development Environment

  • Node.js (v16+)
  • Installed libraries:
    axios, express, googleapis, dotenv

This environment enables seamless Google sheets API Node.js integration for Shopify.

1. Configuring Shopify Admin API Credentials

  1. Navigate to: Shopify Admin → Settings → Apps → Develop Apps
  2. Create a custom app
  3. Enable Admin API Access
  4. Select the required API scopes
  5. Install the app on the store
  6. Copy the Admin API Access Token — used for all authenticated requests

This token powers the Shopify product sync with Google Sheets and all outgoing write operations.

2. Configuring Google OAuth Credentials

  1. Log into Google Cloud Console
  2. Create a project
  3. Enable Google Sheets API and Google Drive API
  4. Navigate to APIs → Credentials
  5. Generate an OAuth 2.0 Client ID
  6. Download the JSON file — containing Client ID, Secret and Redirect URIs

This enables secure authentication for your integration pipeline.

3. Installing Dependencies

Run:
npm init -y
npm install express axios googleapis dotenv

Create a .env file:
SHOPIFY_STORE=myshop.myshopify.com
SHOPIFY_ACCESS_TOKEN=shpat_xxxxxxx
GOOGLE_CLIENT_ID=xxxxxxxxx
GOOGLE_CLIENT_SECRET=xxxxxxxxx
GOOGLE_REDIRECT_URI=http://localhost:3000/oauth2callback

4. Implementing Google OAuth Flow

import express from "express";
import { google } from "googleapis";
import dotenv from "dotenv";
dotenv.config();

const app = express();

const oauth2Client = new google.auth.OAuth2(
  process.env.GOOGLE_CLIENT_ID,
  process.env.GOOGLE_CLIENT_SECRET,
  process.env.GOOGLE_REDIRECT_URI
);

// Step 1: Redirect user to Google Consent Screen
app.get("/auth", (req, res) => {
  const url = oauth2Client.generateAuthUrl({
    access_type: "offline",
    scope: [
      "https://www.googleapis.com/auth/spreadsheets",
      "https://www.googleapis.com/auth/drive.file"
    ]
  });
  res.redirect(url);
});

// Step 2: Handle OAuth Callback + Token Exchange
app.get("/oauth2callback", async (req, res) => {
  const { code } = req.query;
  const { tokens } = await oauth2Client.getToken(code);
  oauth2Client.setCredentials(tokens);
  res.send("Google Sheets connected successfully!");
});

app.listen(3000, () =>
  console.log("Server running on http://localhost:3000")
);

5. Syncing Shopify Data with Google Sheets

Below is an example of retrieving Shopify products and pushing them into a Google Sheet:

import axios from "axios";
import { google } from "googleapis";

const SHEET_ID = "your_google_sheet_id_here";

async function syncProducts() {
  try {
    // 1. Pull product data from Shopify
    const shopifyResp = await axios.get(
      `https://${process.env.SHOPIFY_STORE}/admin/api/2024-10/products.json?limit=10`,
      {
        headers: {
          "X-Shopify-Access-Token": process.env.SHOPIFY_ACCESS_TOKEN,
          "Content-Type": "application/json",
        },
      }
    );

    const products = shopifyResp.data.products.map((p) => [
      p.id,
      p.title,
      p.variants[0].price,
    ]);

    // 2. Write dataset to Google Sheets
    const sheets = google.sheets({ version: "v4", auth: oauth2Client });

    await sheets.spreadsheets.values.update({
      spreadsheetId: SHEET_ID,
      range: "Sheet1!A1",
      valueInputOption: "RAW",
      requestBody: {
        values: [["ID", "Title", "Price"], ...products],
      },
    });

    console.log("Products synced successfully!");
  } catch (err) {
    console.error("Sync failed:", err.message);
  }
}

6. Implementing Error-Handling and Failover Logic

For enterprise-grade stability, Citytech recommends incorporating:

  • Exponential backoff for failed API calls
  • Automatic token refresh for Google OAuth tokens
  • Shopify API rate-limit awareness
  • Retry queue for batch updates using BullMQ
  • Structured logging with Winston or Datadog
  • Audit logging for regulatory compliance

This ensures your Shopify inventory updates, product sync, and order sync operations run reliably at scale.

When should You consider Hiring Shopify Developers

For complex deployments, such as ERP integrations, multi-source inventory sync, or headless commerce architectures, working with a certified Shopify development company ensures:

  • Secure OAuth orchestration
  • High-performance API pipelines
  • Enterprise-grade data modeling
  • Error-resilient middleware design
  • Scalable, multi-store synchronization

Our Shopify Plus certified developers specialize in creating tightly-integrated systems connecting Shopify with:

  • ERP solutions (SAP, Microsoft Dynamics, Odoo)
  • Accounting platforms
  • Warehousing systems
  • CRM and BI tools
  • Marketing automation systems

If your business demands mission-critical reliability, high throughput, and deep customization, our engineering team can build a robust integration tailored to your ecosystem.

Conclusion

Integrating Google Sheets API with Shopify using OAuth 2.0 provides a seamless, secure, and automated workflow for merchants managing dynamic datasets. The combination of Shopify Admin API, real-time sheet updates, and OAuth-based authorization unlocks:

  • Automated reporting
  • Accurate inventory synchronization
  • Live product management
  • Zero manual CSV handling

Whether you are building simple product sync automation or a full-scale enterprise data pipeline, this integration provides a scalable foundation for workflow optimization and analytics. Citytech Software’s expert developers can help architect, implement, and maintain a secure API connectivity layer tailored for your operational and commercial goals.

Google Sheets API Shopify Integration_CTA