Created
August 4, 2017 19:47
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Electron `call` interface between main and renderer processes
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import { ipcMain } from 'electron' | |
import uuid from 'uuid' | |
/** | |
* Makes a data request over IPC to renderer process | |
* @param {string} request Request type known to main handler | |
* @param {object} Optional `options` object used as parameters for request | |
* @return {Promise} Promise of data | |
*/ | |
export function call(window, request, options={}) { | |
return new Promise((resolve, reject) => { | |
const id = uuid.v1() | |
ipcMain.once(`response:${id`, (_, response) => { | |
respose.success ? | |
resolve(response.data) : | |
reject(response.data) | |
}) | |
window.webContents.send(`request`, { id, context: { request, options } }) | |
}) | |
} |
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import { ipcRenderer } from 'electron' | |
ipcRenderer.on(`request`, handleRequest) | |
async function handleRequest(_, { id, context: { request, options } }) { | |
const { sendSuccess, sendError } = prepareResponse(sender, requestId) | |
switch(request) { | |
case `ping`: | |
await doSomeAsyncWork() | |
sendSuccess(`Hello, ${options.hello}. I'm done.`) | |
default: | |
sendError(`Unsupported request: ${request}`) | |
} | |
} | |
function prepareResponse(id) { | |
return { | |
sendSuccess: data => ipcRenderer.send(`response:${id}`, { success: true, data }), | |
sendError: error => ipcRenderer.send(`response:${id}`, { success: false, error }) | |
} | |
} |
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