65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
const {app, ipcMain} = require('electron');
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const storage = require('electron-storage');
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const datastore = require('nedb');
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const path = require('path');
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const dbPath = path.join(app.getPath('userData'), 'storage.db');
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const db = new datastore({ filename: dbPath });
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db.loadDatabase(function (err) {
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// Now commands will be executed
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});
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// index the block field
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db.ensureIndex({ fieldName: 'block' }, function (err) {
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// If there was an error, err is not null
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});
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// index the txhash field
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db.ensureIndex({ fieldName: 'txhash', unique: true }, function (err) {
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// If there was an error, err is not null
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});
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ipcMain.on('storeTransaction', (event, arg) => {
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db.update({ txhash: arg.txhash }, arg, { upsert: true }, function (err, numReplaced, upsert) {
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// do nothing for now
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});
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});
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ipcMain.on('getTransactions', (event, arg) => {
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db.find({}).sort({ block: 1 }).exec(function (err, docs) {
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ResultData = [];
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for (i = 0; i < Math.min(docs.length, 500); i++) {
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ResultData.push([
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docs[i].block,
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docs[i].timestamp,
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docs[i].fromaddr,
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docs[i].toaddr,
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docs[i].value
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]);
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}
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// return the transactions data
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event.returnValue = ResultData;
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});
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});
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ipcMain.on('getJSONFile', (event, arg) => {
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storage.get(arg, (err, data) => {
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if (err) {
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event.returnValue = null;
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} else {
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event.returnValue = data;
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}
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});
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});
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ipcMain.on('setJSONFile', (event, arg) => {
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storage.set(arg.file, arg.data, (err) => {
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if (err) {
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event.returnValue = { success: false, error: err };
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} else {
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event.returnValue = { success: true, error: null };
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}
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});
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});
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