A Node.js script designed to automate the bulk updating and rolling back of Shopify product prices based on specific product tags. This tool is ideal for managing sales, promotions, or price adjustments across a large catalog of products efficiently.

Features

Bulk Price Updates: Adjust product prices by a configurable percentage (increase or decrease).
Price Rollback: Revert product prices to their original "compare-at" price, useful for ending sales or promotions.
Tag-Based Operations: Target specific groups of products using Shopify product tags.
Scheduled Execution: Optionally schedule price operations to run at a future date and time.
Comprehensive Logging: Provides detailed logs of operations, including product counts, successful updates/rollbacks, and any encountered errors.
Graceful Shutdown: Handles interruptions gracefully, ensuring data integrity.

Installation

To get started with the Shopify Price Updater, follow these steps:

Prerequisites

Node.js (version 16.0.0 or higher)
Access to a Shopify store with Admin API credentials.

Steps

Clone the Repository:
```
git clone https://github.com/your-repo/shopify-price-updater.git
cd shopify-price-updater
```
(Note: Replace https://github.com/your-repo/shopify-price-updater.git with the actual repository URL if different.)
Install Dependencies:
```
npm install
```
Configure Environment Variables: Create a .env file in the root directory of the project (same level as package.json). Copy the contents from .env.example and fill in your Shopify store details and desired configuration.
```
# .env example
# Shopify Store Configuration
SHOPIFY_SHOP_DOMAIN=your-shop-name.myshopify.com
SHOPIFY_ACCESS_TOKEN=your-admin-api-access-token

# Price Update Configuration
TARGET_TAG=sale
OPERATION_MODE=update
PRICE_ADJUSTMENT_PERCENTAGE=10

# Scheduling Configuration (Optional)
# SCHEDULED_EXECUTION_TIME=2024-12-25T10:30:00
```
- SHOPIFY_SHOP_DOMAIN: Your Shopify store's domain (e.g., your-store.myshopify.com).
- SHOPIFY_ACCESS_TOKEN: A Shopify Admin API Access Token with write_products and read_products permissions.
- TARGET_TAG: The Shopify product tag that identifies the products you want to update (e.g., sale, clearance).
- OPERATION_MODE: Set to update for price adjustments or rollback to revert prices.
- PRICE_ADJUSTMENT_PERCENTAGE: (Used only in update mode) The percentage by which to adjust prices. Use a positive number for an increase (e.g., 10 for +10%) and a negative number for a decrease (e.g., -15 for -15%).
- SCHEDULED_EXECUTION_TIME: (Optional) An ISO 8601 formatted datetime string (e.g., YYYY-MM-DDTHH:MM:SS). If set, the script will wait until this time before executing the operation. Leave commented out or remove to execute immediately.

Usage

You can run the application using the following npm scripts:

Run in Default Mode (Update)

This will run the script in update mode with the TARGET_TAG and PRICE_ADJUSTMENT_PERCENTAGE defined in your .env file.

npm start

Run in Update Mode

~~Explicitly sets the OPERATION_MODE to update. This is useful if you want to override the .env setting for a single run.~~

Doesn't work currently, weird spacing issues in package.json

npm run update

Run in Rollback Mode

~~Explicitly sets the OPERATION_MODE to rollback. This will revert prices of products with the TARGET_TAG from their current price to their compare-at price.~~

Doesn't work currently, weird spacing issues in package.json

npm run rollback

Debug Tags

This script helps in debugging product tags. It's useful for verifying which products are associated with a specific tag without performing any price changes.

npm run debug-tags

Running Tests

To run the automated tests for the application:

npm test

Scheduled Operations

If SCHEDULED_EXECUTION_TIME is set in your .env file, the script will start and wait until the specified time before initiating the price update or rollback operation. You can use npm start, npm run update, or npm run rollback with the SCHEDULED_EXECUTION_TIME variable set.