MPESA PACKAGE - NODE.JS

Instantiate

Instantiate the payment package with default setting from daraja

  const Payment = require('payment')
  const payment = new Payment({
    consumerKey: '<Get from daraja api>',
    consumerSecret: '<Get from daraja api>',
    businessShortCode: '174379', // From daraja api for testing
    passKey: 'bfb279f9aa9bdbcf158e97dd71a467cd2e0c893059b10f78e6b72ada1ed2c919' // Also from daraja api ,
    uri: 'https://sandbox.safaricom.co.ke' 
  })

Authentication

• After instantiating, the next step should be to set authentication

  payment.setAuthentication()

• The above sets you a token, payment.token that will be used for authenticating mpesa api requests going forward

Stk

• Processes stk push for a transaction
• We'll still be using the created payment object above
• processStk function params

| Field | Required | Description | |-------------------------|----------|---------------------------------------| | amount | true | Amount to be paid | | phoneNumber | true | Phone number of paying user | | callbackUrl | true | Callback url on success or failure | | accountReference | true | Account reference for payment | | transactionDescription | true | Transaction description |

processStk function

await payment.setAuthentication()
await payment.processStk({
  amount,
  phoneNumber,
  callbackUrl,
  accountReference,
  transactionDescription
})

Stk callback

• Once an stk push has been processed, then mpesa api will need a way to inform your application that your payment has been processed or rejected
• To do this, set up webhooks on your app that will receive this information