Fungies.io Help Center
  • 🙌Getting Started
  • Customize your online store
    • General Settings
    • Header
    • Footer
    • Add New Page
    • Add Page Section
    • Text Section
    • Image Section
    • Video Section
    • Gallery Section
    • Points Section
    • Slider Section
    • Recent Products Section
    • Custom Style
  • Add Subscription Product
  • Add Digital Downloads
  • Add Game Keys
  • Add Mobile Game Assets
  • Variants of the product
  • 🛠️Workspace Settings
    • Connect your Stripe account
    • Sandbox Mode
    • Team Management
  • 🧮Store Settings
    • Publish your store
    • Previewing The Store
    • Edit Explore / Search Page (Built-in)
    • Edit Product Page (Built-in)
      • Customize Review Categories
    • Set up Custom Domain
      • Migrating your domain to Cloudflare
  • Tax-inclusive Pricing
  • 🤑Getting Paid
    • Test Payments
    • Checkout Choice
      • Hosted Checkout
      • Overlay Checkout
      • Embedded Checkout
    • Global Availability
    • Customer Payment Methods
      • PayPal Settings
    • Billing Details
    • Payouts
    • Editing Statement Descriptor
    • Transactions Reports
  • 👨‍💻FOR SAAS DEVELOPERS
    • Hosted Checkout (more payment methods)
    • Editing and Pausing Subscriptions
      • Downgrading / Upgrading Subscriptions
    • Creating Plans
    • Free Trials and Custom Intervals
    • Redirecting After Purchase
    • Using Webhooks
    • Types of Webhooks
      • Payment Success
      • Payment Refunded
      • Payment Failed
      • Subscription Created
      • Subscription Interval
      • Subscription Updated
      • Subscription Cancelled
    • Getting Started with the API
    • Orders APIs
      • Managing Orders through API
      • Orders List
      • Cancel Order
      • Update Order
    • Managing Subscriptions through API
    • Managing and Creating Users through API
    • Customizing Subscription Confirmation Page
    • Using CustomFields to parse data from your Software / App
      • Parse e-mails from your Software directly to checkout URL
  • Additional charges on top of Subscriptions
  • Upgrading or Downgrading Plans with API
  • Using Fungies.js npm package
    • Next.js 15 integration guide
  • 🎮For Game Developers
    • Orders
    • Platform Fees
    • Users list
    • Integrating with Game's Back-end
    • Customizing Purchase Confirmation Page
    • Webhooks
  • 💲Selling
    • Payment history
    • Selling FREE products
    • Managing Game Keys
    • Managing Game Assets
    • Pricing
    • Fulfillment of Orders
    • Prohibited Business and Products
    • Invoices and Receipts
    • Google Merchant Center XML Feed
    • SEO Sitemap
  • 🚀Marketing
    • Integrations
      • Google Tag Manager
      • Google Merchant Center
      • Trustpilot
      • Google Analytics (via Google Tag Manager)
    • SEO
    • Discount Codes
    • Pricing Localization
    • Language Localization
    • E-mail Marketing
  • 💰Billing
    • Plans and Usage
    • Invoices
    • Payment Methods
  • 🤩For End-Users
    • How to manage your Subscription?
    • How to buy a Game Key?
    • How to buy a Mobile Game Asset?
    • Getting your product
    • Steam key activation
    • Searching for games
    • Product details page
    • Order details
    • Refunds and chargebacks
  • 🗃️Other
    • FAQ
    • Roadmap
    • Product Changelog
  • 📃Legal
    • General Terms of Use
    • SaaS Terms of Use
    • Privacy Policy
    • Cookies and Tracking
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Using Fungies.js npm package

PreviousUpgrading or Downgrading Plans with APINextNext.js 15 integration guide

Last updated 8 days ago

The Fungies JavaScript SDK provides easy integration for Fungies checkout in your web applications.

It can be found .

Installation

npm install @fungies/fungies-js
yarn add @fungies/fungies-js
pnpm add @fungies/fungies-js
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