Setup

Utility Functions

Setup​

Description​

Initializes Tweed's backend SDK

Parameters​

Name	Type	Required	Description
apiKey	String	✔️	API key
apiSecret	String	✔️	API secret
callbacks	TweedBackendSdkCallbacks		Configuring callbacks for the checkout products: getNftPurchaseData - Will be called when a NFT checkout request will be initiated by the frontend getTokenPurchaseData - Will be called when a Token checkout request will be initiated by the frontend
defaultBlockchainIds	String[]	✔️	The blockchains that will be used in the lifecycle of the integration

Return type​

Promise<TweedBackendSDKApi>

Usage​ Example​

You can get your API keys here.

import { TweedBackendSDK } from '@paytweed/backend-sdk'

const tweed = await TweedBackendSDK.setup({
  apiKey: 'YOUR_API_KEY', //Taken from your account at console.paytweed.com
  apiSecret: 'YOUR_API_SECRET', //Taken from your account at console.paytweed.com
  callbacks: { getNftPurchaseData }, //Used for the NFT checkout
  defaultBlockchainIds: ['ethereumGoerli'], //Taken from the supported blockchain list
})

---

Handle message from Frontend

Description​

Handles a message that was sent by the frontend SDK

Parameters​

Name	Type	Required	Default	Description
message	String	✔️		Message that came from the frontend
userId	String	✔️		Id of the authenticated user
userEmail	String	✔️		Email of the authenticated user

Return type​

Promise<string>

Usage​ Example​

const app = express()
app.post('/message', async (req, res) => {
  const userEmail = '[e-mail]' // pre-authenticated user email
  const userId = '1' // pre-authenticated user id
  const answer = await tweed.handleMessageFromFrontend(req.body.message, userId, userEmail)
  res.send({ answer })
})