Paddle Billing is a complete digital product sales and subscription management platform, designed for modern software businesses. It helps you increase your revenue, retain customers, and scale your operations.
This is a Node.js SDK that you can use to integrate Paddle Billing with applications written in server-side JavaScript.
For working with Paddle in your frontend, use Paddle.js. You can open checkouts, securely collect payment information, build pricing pages, and integrate with Paddle Retain.
Important: This package works with Paddle Billing. It does not support Paddle Classic. To work with Paddle Classic, see: Paddle Classic API reference
Install using npm
:
npm install @paddle/paddle-node-sdk
Install using yarn
:
yarn add @paddle/paddle-node-sdk
Install using pnpm
:
pnpm add @paddle/paddle-node-sdk
To authenticate, you'll need an API key. You can create and manage API keys in Paddle > Developer tools > Authentication.
Pass your API key while initializing a new Paddle client.
import { Environment, Paddle } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
You can also pass an environment to work with the sandbox:
const paddle = new Paddle('API_KEY', {
environment: Environment.production, // or Environment.sandbox for accessing sandbox API
logLevel: 'verbose' // or 'error' for less verbose logging
})
Keep in mind that API keys are separate for your sandbox and live accounts, so you'll need to generate keys for each environment.
This SDK comes with TypeScript definitions for the Paddle API. We recommend that you update frequently to keep the TypeScript definitions up-to-date with the API. Use // @ts-ignore
to prevent any type error if you don't want to update.
When we make non-breaking changes to the Paddle API, we'll only release a new major version of the Node.js SDK when it causes problems at runtime. We won't release a new version of the SDK when we weaken TypeScript types in a way that doesn't cause existing implementations to break or malfunction. For example, if we add a new field to a request or an allowed value for a field in a response, this weakens the Typescript type but does not cause existing usages to stop working.
This means when upgrading minor versions of the SDK, you may notice type errors. You can safely ignore these or fix by adding additional type guards.
Properties in the Paddle API use snake_case
. To follow JavaScript conventions, properties in this SDK use camelCase
. This means:
- Convert
snake_case
field names in the API docs tocamelCase
when creating or updating entities using the SDK. - Responses match the API docs, but field names are
camelCase
rather thansnake_case
.
You can list supported entities with the list
function in the resource. It returns an iterator to help when working with multiple pages.
import { Paddle } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
function getProducts() {
// creates an iterator instance
const productCollection = paddle.products.list()
return productCollection
}
try {
// Creates an iterator to loop through paginated data.
// At this point, It does not hold any data.
const productCollection = getProducts()
// Call `next()` to retrieve first page of the dataset
const firstPage = await productCollection.next()
console.log("First page data", firstPage)
// Calling `next()` again will retrieve subsequent pages.
const secondPage = await productCollection.next()
console.log("Second page data", secondPage)
} catch (e) {
// Handle Network/API errors
}
You can create a supported entity with the create
function in the resource. It accepts the body to be created. The created entity is returned.
import { Paddle, CreateProductRequestBody } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
async function createProduct(requestBody: CreateProductRequestBody) {
try {
// Pass the request body with the attributes required to create
const product = await paddle.products.create(requestBody)
// Returns a product entity
return product
} catch (e) {
// Handle Network/API errors
}
}
const product = await createProduct({ name: 'ChatApp Education', taxCategory: 'standard' })
console.log("Product", product)
You can update a supported entity with the update
function in the resource. It accepts the id
of the entity to update and an object with the attributes to be updated. The updated entity is returned.
import { Paddle, UpdateProductRequestBody } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
async function updateProduct(productId: string, requestBody: UpdateProductRequestBody) {
try {
// Pass the product id and request body with the attributes to update
const product = await paddle.products.update(productId, requestBody)
// Returns an updated product entity
return product
} catch (e) {
// Handle Network/API errors
}
}
const product = await updateProduct('id', { name: 'ChatApp for Schools' })
console.log('Updated product', product)
Where operations require more than one id
, the update
function accepts multiple arguments. For example, to update an address for a customer, pass the customerId
and the addressId
:
const address = await paddle.addresses.update(customerId, addressId, requestBody)
You can get an entity with the get
function in the resource. It accepts the id
of the entity to get. The entity is returned.
import { Paddle } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
async function getProduct(productId: string) {
try {
// Pass the product id get
const product = await paddle.products.get(productId)
// Returns a product entity
return product
} catch (e) {
// Handle Network/API errors
}
}
const product = await getProduct('id')
console.log('Product', product)
You can archive an entity with the archive
function in the resource. It accepts the id
of the entity to archive. The entity is returned.
- Products
- Prices
- Discounts
- Customers
- Addresses
- Businesses
import { Paddle } from '@paddle/paddle-node-sdk'
const paddle = new Paddle('API_KEY')
async function archiveProduct(productId: string) {
try {
// Pass the product id archive
const product = await paddle.products.archive(productId)
// Returns an archived product entity
return product
} catch (e) {
// Handle Network/API errors
}
}
const product = await archiveProduct('id')
console.log('Product', product)
If a request fails, Paddle returns an error
object that contains the same information as errors returned by the API. You can use the code
attribute to search an error in the error reference and to handle the error in your app. Validation errors also return an array of errors
that tell you which fields failed validation.
This example shows how to handle an error with the code conflict
:
import { ApiError } from '@paddle/paddle-node-sdk'
try {
// Call functions from the SDK
} catch (e: any) {
// e.code will always follow the error code defined in our documentation
const paddleApiError = e as ApiError;
if (paddleApiError.code === 'conflict') {
// Handle Conflict error
}
}
The SDK includes a helper function to verify webhook signatures sent by Notifications from Paddle.
import { Paddle, EventName } from '@paddle/paddle-node-sdk'
import express, { Request, Response } from 'express'
const paddle = new Paddle('API_KEY')
const app = express()
// Create a `POST` endpoint to accept webhooks sent by Paddle.
// We need `raw` request body to validate the integrity. Use express raw middleware to ensure express doesn't convert the request body to JSON.
app.post('/webhooks', express.raw({ type: 'application/json' }), (req: Request, res: Response) => {
const signature = (req.headers['paddle-signature'] as string) || '';
// req.body should be of type `buffer`, convert to string before passing it to `unmarshal`.
// If express returned a JSON, remove any other middleware that might have processed raw request to object
const rawRequestBody = req.body.toString();
// Replace `WEBHOOK_SECRET_KEY` with the secret key in notifications from vendor dashboard
const secretKey = process.env['WEBHOOK_SECRET_KEY'] || '';
try {
if (signature && rawRequestBody) {
// The `unmarshal` function will validate the integrity of the webhook and return an entity
const eventData = paddle.webhooks.unmarshal(rawRequestBody, secretKey, signature);
switch (eventData.eventType) {
case EventName.ProductUpdated:
console.log(`Product ${eventData.data.id} was updated`);
break;
case EventName.SubscriptionUpdated:
console.log(`Subscription ${eventData.data.id} was updated`);
break;
default:
console.log(eventData.eventType);
}
} else {
console.log('Signature missing in header');
}
} catch (e) {
// Handle signature mismatch or other runtime errors
console.log(e);
}
// Return a response to acknowledge
res.send('Processed webhook event');
});
app.listen(3000)
The Node.js SDK has complete feature parity with the Paddle API. All operations in the Paddle API are supported.