Revise payment tutorials, add/remove screenshots

_code-samples/modular-tutorials/send-currency.js

@@ -0,0 +1,72 @@
+// *******************************************************
+// ***************** Create TrustLine ********************
+// *******************************************************
+      
+async function createTrustLine() {
+  const net = getNet() 
+  const client = new xrpl.Client(net)
+  await client.connect()
+  let results = "\nConnected. Creating trust line.\n"
+  resultField.value = results
+  const wallet = xrpl.Wallet.fromSeed(accountSeedField.value)
+  const trustSet_tx = {
+    "TransactionType": "TrustSet",
+    "Account": accountAddressField.value,
+    "LimitAmount": {
+      "currency": currencyField.value,
+      "issuer": issuerField.value,
+      "value": amountField.value
+    }
+  }
+  const ts_prepared = await client.autofill(trustSet_tx)
+  const ts_signed = wallet.sign(ts_prepared)
+  resultField.value = results
+  const ts_result = await client.submitAndWait(ts_signed.tx_blob)
+  if (ts_result.result.meta.TransactionResult == "tesSUCCESS") {
+    results += '\nTrustline established between account \n' +
+      accountAddressField.value + ' \n and account\n' + issuerField.value + '.'
+    resultField.value = results
+  } else {
+    results += `\nTransaction failed: ${ts_result.result.meta.TransactionResult}`
+    resultField.value = results     
+  }
+} //End of createTrustline()
+      
+// *******************************************************
+// *************** Send Issued Currency ******************
+// *******************************************************
+      
+async function sendCurrency() {
+  let net = getNet()
+  const client = new xrpl.Client(net)
+  results = 'Connecting to ' + getNet() + '....'
+  resultField.value = results
+  await client.connect()
+  results += '\nConnected.'
+  resultField.value = results
+  const wallet = xrpl.Wallet.fromSeed(accountSeedField.value)
+  const send_currency_tx = {
+    "TransactionType": "Payment",
+    "Account": wallet.address,
+    "Amount": {
+      "currency": currencyField.value,
+      "value": amountField.value,
+      "issuer": issuerField.value
+    },
+    "Destination": destinationField.value
+  }
+  const pay_prepared = await client.autofill(send_currency_tx)
+  const pay_signed = wallet.sign(pay_prepared)
+  results += `\n\nSending ${amountField.value} ${currencyField.value} to ${destinationField.value} ...`
+ resultField.value = results
+  const pay_result = await client.submitAndWait(pay_signed.tx_blob)
+  if (pay_result.result.meta.TransactionResult == "tesSUCCESS") {
+    results += 'Transaction succeeded.'
+    resultField.value = results
+  } else {
+    results += `\nTransaction failed: ${pay_result.result.meta.TransactionResult}`
+    resultField.value = results
+  }
+  xrpBalanceField.value = (await client.getXrpBalance(wallet.address))
+  client.disconnect()
+} // end of sendCurrency()