mirror of
https://github.com/XRPLF/xrpl-dev-portal.git
synced 2025-11-05 20:35:50 +00:00
Update Desktop Wallet (JS) tutorial dependencies, copy edits
This commit is contained in:
mDuo13
@@ -3,20 +3,19 @@ const { app, BrowserWindow } = require('electron')
|
||||
const path = require('path')
|
||||
|
||||
/**
|
||||
* This is our main function, it creates our application window, preloads the code we will need to communicate
|
||||
* between the renderer Process and the main Process, loads a layout and performs the main logic
|
||||
* Main function: create application window, preload the code to communicate
|
||||
* between the renderer Process and the main Process, load a layout,
|
||||
* and perform the main logic
|
||||
*/
|
||||
const createWindow = () => {
|
||||
|
||||
// Creates the application window
|
||||
// Create the application window
|
||||
const appWindow = new BrowserWindow({
|
||||
width: 1024,
|
||||
height: 768
|
||||
})
|
||||
|
||||
// Loads a layout
|
||||
// Load a layout
|
||||
appWindow.loadFile(path.join(__dirname, 'view', 'template.html'))
|
||||
|
||||
return appWindow
|
||||
}
|
||||
|
||||
|
||||
@@ -1,40 +1,37 @@
|
||||
const { app, BrowserWindow } = require('electron')
|
||||
|
||||
const path = require('path')
|
||||
const xrpl = require("xrpl")
|
||||
// Ledger index code additions - start
|
||||
const xrpl = require('xrpl')
|
||||
|
||||
const TESTNET_URL = "wss://s.altnet.rippletest.net:51233"
|
||||
const TESTNET_URL = 'wss://s.altnet.rippletest.net:51233'
|
||||
|
||||
/**
|
||||
* This function creates a WebService client, which connects to the XRPL and fetches the latest ledger index.
|
||||
* Create a WebSocket client, connect to the XRPL, and fetch the latest ledger index.
|
||||
*
|
||||
* @returns {Promise<number>}
|
||||
*/
|
||||
const getValidatedLedgerIndex = async () => {
|
||||
const client = new xrpl.Client(TESTNET_URL)
|
||||
|
||||
await client.connect()
|
||||
|
||||
// Reference: https://xrpl.org/ledger.html#ledger
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/ledger-methods/ledger
|
||||
const ledgerRequest = {
|
||||
"command": "ledger",
|
||||
"ledger_index": "validated"
|
||||
}
|
||||
|
||||
const ledgerResponse = await client.request(ledgerRequest)
|
||||
|
||||
await client.disconnect()
|
||||
|
||||
return ledgerResponse.result.ledger_index
|
||||
}
|
||||
// Ledger index code additions - end
|
||||
|
||||
/**
|
||||
* This is our main function, it creates our application window, preloads the code we will need to communicate
|
||||
* between the renderer Process and the main Process, loads a layout and performs the main logic
|
||||
* Main function: create application window, preload the code to communicate
|
||||
* between the renderer Process and the main Process, load a layout,
|
||||
* and perform the main logic
|
||||
*/
|
||||
const createWindow = () => {
|
||||
|
||||
// Creates the application window
|
||||
// Create the application window
|
||||
const appWindow = new BrowserWindow({
|
||||
width: 1024,
|
||||
height: 768,
|
||||
@@ -43,9 +40,8 @@ const createWindow = () => {
|
||||
},
|
||||
})
|
||||
|
||||
// Loads a layout
|
||||
// Load a layout
|
||||
appWindow.loadFile(path.join(__dirname, 'view', 'template.html'))
|
||||
|
||||
return appWindow
|
||||
}
|
||||
|
||||
|
||||
@@ -38,7 +38,7 @@ const main = async () => {
|
||||
await client.connect()
|
||||
|
||||
// Subscribe client to 'ledger' events
|
||||
// Reference: https://xrpl.org/subscribe.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe
|
||||
await client.request({
|
||||
"command": "subscribe",
|
||||
"streams": ["ledger"]
|
||||
|
||||
@@ -29,30 +29,30 @@ const main = async () => {
|
||||
|
||||
await client.connect()
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe
|
||||
await client.request({
|
||||
"command": "subscribe",
|
||||
"streams": ["ledger"],
|
||||
"accounts": [address]
|
||||
})
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html#ledger-stream
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe#ledger-stream
|
||||
client.on("ledgerClosed", async (rawLedgerData) => {
|
||||
const ledger = prepareLedgerData(rawLedgerData)
|
||||
appWindow.webContents.send('update-ledger-data', ledger)
|
||||
})
|
||||
|
||||
// Initial Ledger Request -> Get account details on startup
|
||||
// Reference: https://xrpl.org/ledger.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/ledger-methods/ledger
|
||||
const ledgerResponse = await client.request({
|
||||
"command": "ledger"
|
||||
})
|
||||
const initialLedgerData = prepareLedgerData(ledgerResponse.result.closed.ledger)
|
||||
appWindow.webContents.send('update-ledger-data', initialLedgerData)
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html#transaction-streams
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe#transaction-streams
|
||||
client.on("transaction", async (transaction) => {
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoRequest = {
|
||||
"command": "account_info",
|
||||
"account": address,
|
||||
@@ -64,7 +64,7 @@ const main = async () => {
|
||||
})
|
||||
|
||||
// Initial Account Request -> Get account details on startup
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoResponse = await client.request({
|
||||
"command": "account_info",
|
||||
"account": address,
|
||||
|
||||
@@ -30,14 +30,14 @@ const main = async () => {
|
||||
|
||||
await client.connect()
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe
|
||||
await client.request({
|
||||
"command": "subscribe",
|
||||
"streams": ["ledger"],
|
||||
"accounts": [address]
|
||||
})
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html#ledger-stream
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe#ledger-stream
|
||||
client.on("ledgerClosed", async (rawLedgerData) => {
|
||||
const ledger = prepareLedgerData(rawLedgerData)
|
||||
appWindow.webContents.send('update-ledger-data', ledger)
|
||||
@@ -45,7 +45,7 @@ const main = async () => {
|
||||
|
||||
// Wait for transaction on subscribed account and re-request account data
|
||||
client.on("transaction", async (transaction) => {
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoRequest = {
|
||||
"command": "account_info",
|
||||
"account": address,
|
||||
@@ -61,7 +61,7 @@ const main = async () => {
|
||||
})
|
||||
|
||||
// Initial Account Request -> Get account details on startup
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoResponse = await client.request({
|
||||
"command": "account_info",
|
||||
"account": address,
|
||||
@@ -71,7 +71,7 @@ const main = async () => {
|
||||
appWindow.webContents.send('update-account-data', accountData)
|
||||
|
||||
// Initial Transaction Request -> List account transactions on startup
|
||||
// Reference: https://xrpl.org/account_tx.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_tx
|
||||
const txResponse = await client.request({
|
||||
"command": "account_tx",
|
||||
"account": address
|
||||
|
||||
@@ -51,6 +51,9 @@ const main = async () => {
|
||||
}
|
||||
|
||||
const wallet = xrpl.Wallet.fromSeed(seed)
|
||||
// For compatibility with seeds generated using secp256k1 (the old
|
||||
// default algorithm), use the following instead:
|
||||
// const wallet = xrpl.Wallet.fromSeed(seed, {algorithm: "secp256k1"})
|
||||
|
||||
const client = new xrpl.Client(TESTNET_URL)
|
||||
|
||||
|
||||
@@ -2,7 +2,7 @@
|
||||
|
||||
Build a non-custodial XRP Ledger wallet application in JavaScript that runs on the desktop using Electron.
|
||||
|
||||
For the full documentation, refer to the [Build a Wallet in JavaScript tutorial](https://xrpl.org/build-a-wallet-in-javascript.html).
|
||||
For the full documentation, refer to the [Build a Desktop Wallet in JavaScript tutorial](https://xrpl.org/docs/tutorials/javascript/build-apps/build-a-desktop-wallet-in-javascript).
|
||||
|
||||
## TL;DR
|
||||
|
||||
|
||||
@@ -3,7 +3,7 @@ const xrpl = require("xrpl");
|
||||
// The rippled server and its APIs represent time as an unsigned integer.
|
||||
// This number measures the number of seconds since the "Ripple Epoch" of
|
||||
// January 1, 2000 (00:00 UTC). This is like the way the Unix epoch works,
|
||||
// Reference: https://xrpl.org/basic-data-types.html
|
||||
// Reference: https://xrpl.org/docs/references/protocol/data-types/basic-data-types#specifying-time
|
||||
const RIPPLE_EPOCH = 946684800;
|
||||
|
||||
const prepareAccountData = (rawAccountData) => {
|
||||
|
||||
@@ -14,7 +14,7 @@ const fernet = require("fernet");
|
||||
* @returns {Promise<void>}
|
||||
*/
|
||||
const initialize = async (client, wallet, appWindow) => {
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoResponse = await client.request({
|
||||
"command": "account_info",
|
||||
"account": wallet.address,
|
||||
@@ -23,7 +23,7 @@ const initialize = async (client, wallet, appWindow) => {
|
||||
const accountData = prepareAccountData(accountInfoResponse.result.account_data)
|
||||
appWindow.webContents.send('update-account-data', accountData)
|
||||
|
||||
// Reference: https://xrpl.org/account_tx.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_tx
|
||||
const txResponse = await client.request({
|
||||
"command": "account_tx",
|
||||
"account": wallet.address
|
||||
@@ -42,14 +42,14 @@ const initialize = async (client, wallet, appWindow) => {
|
||||
*/
|
||||
const subscribe = async (client, wallet, appWindow) => {
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe
|
||||
await client.request({
|
||||
"command": "subscribe",
|
||||
"streams": ["ledger"],
|
||||
"accounts": [wallet.address]
|
||||
})
|
||||
|
||||
// Reference: https://xrpl.org/subscribe.html#ledger-stream
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/subscription-methods/subscribe#ledger-stream
|
||||
client.on("ledgerClosed", async (rawLedgerData) => {
|
||||
const ledger = prepareLedgerData(rawLedgerData)
|
||||
appWindow.webContents.send('update-ledger-data', ledger)
|
||||
@@ -57,7 +57,7 @@ const subscribe = async (client, wallet, appWindow) => {
|
||||
|
||||
// Wait for transaction on subscribed account and re-request account data
|
||||
client.on("transaction", async (transaction) => {
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const accountInfoRequest = {
|
||||
"command": "account_info",
|
||||
"account": wallet.address,
|
||||
|
||||
@@ -9,7 +9,7 @@ const xrpl = require("xrpl");
|
||||
* @returns {Promise<*>}
|
||||
*/
|
||||
const sendXrp = async (paymentData, client, wallet) => {
|
||||
// Reference: https://xrpl.org/submit.html#request-format-1
|
||||
// Reference: https://xrpl.org/docs/references/protocol/transactions/types/payment
|
||||
const paymentTx = {
|
||||
"TransactionType": "Payment",
|
||||
"Account": wallet.address,
|
||||
|
||||
@@ -39,7 +39,7 @@ async function checkDestination(accountData) {
|
||||
|
||||
/**
|
||||
* Verify an account using a xrp-ledger.toml file.
|
||||
* https://xrpl.org/xrp-ledger-toml.html#xrp-ledgertoml-file
|
||||
* https://xrpl.org/docs/references/xrp-ledger-toml
|
||||
*
|
||||
* @param accountData
|
||||
* @returns {Promise<{domain: string, verified: boolean}>}
|
||||
@@ -89,7 +89,7 @@ async function verifyAccountDomain(accountData) {
|
||||
* @returns {Promise<{domain: string, verified: boolean}>}
|
||||
*/
|
||||
async function verify(accountAddress, client) {
|
||||
// Reference: https://xrpl.org/account_info.html
|
||||
// Reference: https://xrpl.org/docs/references/http-websocket-apis/public-api-methods/account-methods/account_info
|
||||
const request = {
|
||||
"command": "account_info",
|
||||
"account": accountAddress,
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
{
|
||||
"name": "xrpl-javascript-desktop-wallet",
|
||||
"version": "1.0.0",
|
||||
"version": "1.1.0",
|
||||
"license": "MIT",
|
||||
"scripts": {
|
||||
"hello": "electron 0-hello/index.js",
|
||||
@@ -14,15 +14,15 @@
|
||||
"domain-verification": "electron 8-domain-verification/index.js"
|
||||
},
|
||||
"dependencies": {
|
||||
"async": "^3.2.4",
|
||||
"async": "^3.2.6",
|
||||
"fernet": "=0.3.3",
|
||||
"node-fetch": "^2.6.9",
|
||||
"pbkdf2-hmac": "^1.1.0",
|
||||
"node-fetch": "^2.7.0",
|
||||
"pbkdf2-hmac": "^1.2.1",
|
||||
"open": "^8.4.0",
|
||||
"toml": "^3.0.0",
|
||||
"xrpl": "^4.3.0"
|
||||
"xrpl": "^4.4.2"
|
||||
},
|
||||
"devDependencies": {
|
||||
"electron": "28.3.2"
|
||||
"electron": "38.2.0"
|
||||
}
|
||||
}
|
||||
|
||||
@@ -59,28 +59,7 @@ In addition to the above features, you'll also learn a bit about Events, IPC (in
|
||||
|
||||
1. To initialize the project, create a file named `package.json` with the following content:
|
||||
|
||||
```json
|
||||
{
|
||||
"name": "xrpl-javascript-desktop-wallet",
|
||||
"version": "1.0.0",
|
||||
"license": "MIT",
|
||||
"scripts": {
|
||||
"start": "electron ./index.js"
|
||||
},
|
||||
"dependencies": {
|
||||
"async": "^3.2.4",
|
||||
"fernet": "^0.4.0",
|
||||
"node-fetch": "^2.6.9",
|
||||
"pbkdf2-hmac": "^1.1.0",
|
||||
"open": "^8.4.0",
|
||||
"toml": "^3.0.0",
|
||||
"xrpl": "^3.0.0"
|
||||
},
|
||||
"devDependencies": {
|
||||
"electron": "22.3.24"
|
||||
}
|
||||
}
|
||||
```
|
||||
{% code-snippet file="/_code-samples/build-a-desktop-wallet/js/package.json" language="json" /%}
|
||||
|
||||
Here we define the libraries our application will use in the `dependencies` section as well as shortcuts for running our application in the `scripts` section.
|
||||
|
||||
@@ -94,70 +73,25 @@ application to work.
|
||||
|
||||
3. In the root folder, create an `index.js` file with the following content:
|
||||
|
||||
```javascript
|
||||
const { app, BrowserWindow } = require('electron')
|
||||
|
||||
const path = require('path')
|
||||
|
||||
/**
|
||||
* This is our main function, it creates our application window, preloads the code we will need to communicate
|
||||
* between the renderer Process and the main Process, loads a layout and performs the main logic
|
||||
*/
|
||||
const createWindow = () => {
|
||||
|
||||
// Creates the application window
|
||||
const appWindow = new BrowserWindow({
|
||||
width: 1024,
|
||||
height: 768
|
||||
})
|
||||
|
||||
// Loads a layout
|
||||
appWindow.loadFile(path.join(__dirname, 'view', 'template.html'))
|
||||
|
||||
return appWindow
|
||||
}
|
||||
|
||||
// Here we have to wait for the application to signal that it is ready
|
||||
// to execute our code. In this case we just create a main window.
|
||||
app.whenReady().then(() => {
|
||||
createWindow()
|
||||
})
|
||||
```
|
||||
{% code-snippet file="/_code-samples/build-a-desktop-wallet/js/0-hello/index.js" language="js" /%}
|
||||
|
||||
4. Make a new folder named `view` in the root directory of the project.
|
||||
|
||||
5. Now, inside the `view` folder, add a `template.html` file with the following content:
|
||||
|
||||
```html
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
{% code-snippet file="/_code-samples/build-a-desktop-wallet/js/0-hello/view/template.html" language="html" /%}
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'" />
|
||||
<meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'" />
|
||||
<title>XRPL Wallet Tutorial (JavaScript / Electron)</title>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<h3>Build a XRPL Wallet</h3>
|
||||
<span>Hello world!</span>
|
||||
|
||||
</body>
|
||||
|
||||
</html>
|
||||
```
|
||||
6. Now, start the application with the following command:
|
||||
|
||||
```console
|
||||
npm run start
|
||||
```
|
||||
|
||||
{% admonition type="success" name="Tip" %}When you need to debug the application, you can open Developer Tools like in Chrome or Firefox by selecting "View / Toggle Developer Tools" from The application Menu or using a Shortcut ("Ctrl+Shift+I" on Windows or Linux, "Option+Command+I on Mac).{% /admonition %}
|
||||
{% admonition type="success" name="Tip" %}When you need to debug the application, you can open Developer Tools by selecting "View / Toggle Developer Tools" from the application menu or using a keyboard shortcut (Ctrl+Shift+i on Windows or Linux; Option+Command+i on Mac).{% /admonition %}
|
||||
|
||||
You should see a window appear that displays the text "Build a XRPL Wallet" and "Hello world!"
|
||||
To run the reference application found in `_code-samples/build-a-desktop-wallet/desktop-js` for this step, run:
|
||||
To run the reference application for this step, run:
|
||||
|
||||
```console
|
||||
npm run hello
|
||||
@@ -166,64 +100,24 @@ npm run hello
|
||||
In the next steps we will continually expand on this very basic setup. To better keep track of all the changes that will be made, the files in the {% repo-link path="_code-samples/build-a-desktop-wallet/js/" %}reference section{% /repo-link %} are numbered/prefixed with the respective step number:
|
||||
|
||||
**Full code for this step:**
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/0_hello.js" %}`0-hello/0_hello.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/view/0_hello.html" %}`0-hello/view/0_hello.html`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/0-hello/index.js" %}`0-hello/index.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/0-hello/view/template.html" %}`0-hello/view/template.html`{% /repo-link %},
|
||||
|
||||
### 1. Ledger Index
|
||||
|
||||
**Full code for this step:**
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/1_ledger-index.js" %}`1-ledger-index/index.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/view/1_preload.js" %}`1-ledger-index/view/preload.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/view/1_ledger-index.html" %}`1-ledger-index/view/template.html`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/view/1_renderer.js" %}`1-ledger-index/view/renderer.js`{% /repo-link %}.
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/1-ledger-index/index.js" %}`1-ledger-index/index.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/1-ledger-index/view/preload.js" %}`1-ledger-index/view/preload.js`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/1-ledger-index/view/template.html" %}`1-ledger-index/view/template.html`{% /repo-link %},
|
||||
{% repo-link path="_code-samples/build-a-desktop-wallet/js/1-ledger-index/view/renderer.js" %}`1-ledger-index/view/renderer.js`{% /repo-link %}.
|
||||
|
||||
Our first step was to have a running "Hello World" application. Now we want to expand on that so that the application can interact on a very basic level with the XRP Ledger and display some information about the current ledger state on the screen. After completing this step, the - for the time being unstyled - application should look like this:
|
||||
Our first step was to have a running "Hello World" application. Now we want to expand on that so that the application can interact on a very basic level with the XRP Ledger and display some information about the current ledger state on the screen. After completing this step, the application should look like this:
|
||||
|
||||
|
||||
|
||||
1. Update `index.js` by adding the following snippet in the import section at the top of the file below the `path` import:
|
||||
|
||||
```javascript
|
||||
const { app, BrowserWindow } = require('electron')
|
||||
|
||||
const path = require('path')
|
||||
|
||||
// Step 3 code additions - start
|
||||
const xrpl = require("xrpl")
|
||||
|
||||
const TESTNET_URL = "wss://s.altnet.rippletest.net:51233"
|
||||
|
||||
/**
|
||||
* This function creates a WebService client, which connects to the XRPL and fetches the latest ledger index.
|
||||
*
|
||||
* @returns {Promise<number>}
|
||||
*/
|
||||
const getValidatedLedgerIndex = async () => {
|
||||
const client = new xrpl.Client(TESTNET_URL)
|
||||
|
||||
await client.connect()
|
||||
|
||||
// Reference: https://xrpl.org/ledger.html#ledger
|
||||
const ledgerRequest = {
|
||||
"command": "ledger",
|
||||
"ledger_index": "validated"
|
||||
}
|
||||
|
||||
const ledgerResponse = await client.request(ledgerRequest)
|
||||
|
||||
await client.disconnect()
|
||||
|
||||
return ledgerResponse.result.ledger_index
|
||||
}
|
||||
// Step 3 code additions - end
|
||||
|
||||
|
||||
/**
|
||||
* This is our main function, it creates our application window, preloads the code we will need to communicate
|
||||
* between the renderer Process and the main Process, loads a layout and performs the main logic
|
||||
*/
|
||||
const createWindow = () => {
|
||||
```
|
||||
{% code-snippet file="/_code-samples/build-a-desktop-wallet/js/1-ledger-index/index.js" language="js" from="// Ledger index code additions - start" before="// Ledger index code additions - end" /%}
|
||||
|
||||
This helper function does the following: It establishes a WebSocket connection to the XRP Ledger, calls the XRP Ledger API's [ledger method](../../../references/http-websocket-apis/public-api-methods/ledger-methods/ledger.md) and returns the ledger index from the response. We will wire up this function at the end of this step.
|
||||
|
||||
|
||||
Reference in New Issue
Block a user