add readme to each folder

content/_code-samples/claim-payment-channel/js/claimPayChannel.ts

@@ -0,0 +1,74 @@
+import {
+  AccountObjectsRequest,
+  Client,
+  PaymentChannelCreate,
+  PaymentChannelClaim,
+  hashes,
+} from 'xrpl'
+
+const client = new Client('wss://s.altnet.rippletest.net:51233')
+
+void claimPayChannel()
+
+// The snippet walks us through creating and claiming a Payment Channel.
+async function claimPayChannel(): Promise<void> {
+  await client.connect()
+
+  // creating wallets as prerequisite
+  const { wallet: wallet1 } = await client.fundWallet()
+  const { wallet: wallet2 } = await client.fundWallet()
+
+  console.log('Balances of wallets before Payment Channel is claimed:')
+  console.log(await client.getXrpBalance(wallet1.classicAddress))
+  console.log(await client.getXrpBalance(wallet2.classicAddress))
+
+  // create a Payment Channel and submit and wait for tx to be validated
+  const paymentChannelCreate: PaymentChannelCreate = {
+    TransactionType: 'PaymentChannelCreate',
+    Account: wallet1.classicAddress,
+    Amount: '100',
+    Destination: wallet2.classicAddress,
+    SettleDelay: 86400,
+    PublicKey: wallet1.publicKey,
+  }
+
+  const paymentChannelResponse = await client.submitAndWait(
+    paymentChannelCreate,
+    { wallet: wallet1 },
+  )
+  console.log(paymentChannelResponse)
+
+  // check that the object was actually created
+  const accountObjectsRequest: AccountObjectsRequest = {
+    command: 'account_objects',
+    account: wallet1.classicAddress,
+  }
+
+  const accountObjects = (await client.request(accountObjectsRequest)).result
+    .account_objects
+
+  console.log(accountObjects)
+
+  // destination claims the Payment Channel and we see the balances to verify.
+  const paymentChannelClaim: PaymentChannelClaim = {
+    Account: wallet2.classicAddress,
+    TransactionType: 'PaymentChannelClaim',
+    Channel: hashes.hashPaymentChannel(
+      wallet1.classicAddress,
+      wallet2.classicAddress,
+      paymentChannelResponse.result.Sequence ?? 0,
+    ),
+    Amount: '100',
+  }
+
+  const channelClaimResponse = await client.submit(paymentChannelClaim, {
+    wallet: wallet1,
+  })
+  console.log(channelClaimResponse)
+
+  console.log('Balances of wallets after Payment Channel is claimed:')
+  console.log(await client.getXrpBalance(wallet1.classicAddress))
+  console.log(await client.getXrpBalance(wallet2.classicAddress))
+
+  await client.disconnect()
+}