const gocardless = require('gocardless-nodejs');
const constants = require('gocardless-nodejs/constants');


// Initialise the client.
const client = gocardless(
  process.env.GC_ACCESS_TOKEN,
  constants.Environments.Sandbox,
  { raiseOnIdempotencyConflict: true },
);

const uuidv4 = require('uuid/v4');

// Create a new payment with an idempotency key
const payment = await client.payments.create(
  {
    amount: 100,
    currency: "GBP",
    links: { mandate: "MD123" },
  },
  uuidv4(),
);

// List the first three payments past a certain date.
const payments = await client.payments.list({
  limit: 3,
  created_at: {
    gt: '2020-01-01T17:01:06.000Z',
  },
});

// Get a payment.
const payment = await client.payments.find('PM123');

// Update a payment.
await client.payments.update('PM123', { amount: '22' });

// Cancel a payment.
await client.payments.cancel('PM123');

for await (const payment of client.payments.all()) {
  console.log(payment.id);
}