Checks tutorial: separate signing for CheckCreate

content/code_samples/checks/js/package.json

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+{
+  "name": "checks-examples",
+  "description": "Example code for signing and submitting Checks with RippleAPI",
+  "version": "0.0.1",
+  "license": "MIT",
+  "dependencies": {
+    "ripple-lib": "^0.19.0"
+  }
+}

content/code_samples/checks/js/prepareCreate.js

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+'use strict'
+const RippleAPI = require('ripple-lib').RippleAPI
+
+// This example connects to a public Test Net server
+const api = new RippleAPI({server: 'wss://s.altnet.rippletest.net:51233'})
+api.connect().then(() => {
+  console.log('Connected')
+
+  const sender = 'rBXsgNkPcDN2runsvWmwxk3Lh97zdgo9za'
+  const receiver = 'rGPnRH1EBpHeTF2QG8DCAgM7z5pb75LAis'
+  const options = {
+    // Allow up to 60 ledger versions (~5 min) instead of the default 3 versions
+    // before this transaction fails permanently.
+    "maxLedgerVersionOffset": 60
+  }
+  return api.prepareCheckCreate(sender, {
+    "destination": receiver,
+    "sendMax": {
+      "currency": "XRP",
+      "value": "100" // RippleAPI uses decimal XRP, not integer drops
+    }
+  }, options)
+
+}).then(prepared => {
+  console.log("txJSON:", prepared.txJSON);
+
+// Disconnect and return
+}).then(() => {
+  api.disconnect().then(() => {
+    console.log('Disconnected')
+    process.exit()
+  })
+}).catch(console.error)

content/code_samples/checks/js/sign-resp-example.txt

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+tx_blob is: 12001022800000002400000001201B0075139F68400000000000000C694000000005F5E100732103B6FCD7FAC4F665FE92415DD6E8450AD90F7D6B3D45A6CFCF2E359045FF4BB4007446304402204B5DA588DC2B9B9E52248129F07083AE71039CBDD8A87F58583853A4A9A8461B02205973D04A9F97EE0684DB98D4EC813CF748806019751062FB600406D8BE95D18D8114735FF88E5269C80CD7F7AF10530DAB840BBF6FDF8314A8B6B9FF3246856CADC4A0106198C066EA1F9C39
+tx hash is: DC334D25AA70A4412E8EA80D3199414C5D8579DFD3F085E5AF7CE35C334F5246

content/code_samples/checks/js/signCreate.js

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+'use strict'
+const RippleAPI = require('ripple-lib').RippleAPI
+
+// Can sign offline if the txJSON has all required fields
+const api = new RippleAPI()
+
+const txJSON = '{"Account":"rBXsgNkPcDN2runsvWmwxk3Lh97zdgo9za", \
+  "TransactionType":"CheckCreate", \
+  "Destination":"rGPnRH1EBpHeTF2QG8DCAgM7z5pb75LAis", \
+  "SendMax":"100000000", \
+  "Flags":2147483648, \
+  "LastLedgerSequence":7672735, \
+  "Fee":"12", \
+  "Sequence":1}'
+// Be careful where you store your real secret.
+const secret = 's████████████████████████████'
+
+const signed = api.sign(txJSON, secret)
+
+console.log("tx_blob is:", signed.signedTransaction)
+console.log("tx hash is:", signed.id)

content/code_samples/checks/js/submitCreate.js

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+'use strict'
+const RippleAPI = require('ripple-lib').RippleAPI
+
+// This example connects to a public Test Net server
+const api = new RippleAPI({server: 'wss://s.altnet.rippletest.net:51233'})
+api.connect().then(() => {
+  console.log('Connected')
+
+  const tx_blob = "12001022800000002400000001201B0075139F68400000000000000C69"+
+    "4000000005F5E100732103B6FCD7FAC4F665FE92415DD6E8450AD90F7D6B3D45A6CFCF2E"+
+    "359045FF4BB4007446304402204B5DA588DC2B9B9E52248129F07083AE71039CBDD8A87F"+
+    "58583853A4A9A8461B02205973D04A9F97EE0684DB98D4EC813CF748806019751062FB60"+
+    "0406D8BE95D18D8114735FF88E5269C80CD7F7AF10530DAB840BBF6FDF8314A8B6B9FF32"+
+    "46856CADC4A0106198C066EA1F9C39"
+
+  return api.submit(tx_blob)
+}).then(response => {
+  console.log("Preliminary transaction result:", response.resultCode)
+
+// Disconnect and return
+}).then(() => {
+  api.disconnect().then(() => {
+    console.log('Disconnected')
+    process.exit()
+  })
+}).catch(console.error)