Cannot access files inside asar archive in electron app

Question

Electron version: 1.2 Operating system: Windows

Cannot able to access the files inside asar archive using readFileSync:

var fs = require('fs');
var SQL = require('sql.js');
var filebuffer = fs.readFileSync('asar:'+ __dirname + './app/data/sample.db');

I've also tried using 
trial 1 : readFileSync('D:/Sample-App/app.asar/app/data/sample.db');

trial 2 : readFileSync('./app/data/sample.db');

trial 3 : process.noAsar= true;
readFileSync('./app/data/sample.db');

None of the trials worked out. If I try without using app.asar, I was able to access the db file. So Please help me resolve this issue.

ccnokes · Accepted Answer · 2016-06-02T23:00:58.587

13

I'm assuming you mean that once you package your app to an asar, your file paths don't work.

fs.readFileSync('asar:'+ __dirname + './app/data/sample.db')

This is close. You don't need "asar:" and you should use the path module to make your life easier.

Try constructing a path dynamically using path. Also your main entry point JS is probably already running in the app folder. Try something like this:

path.join(__dirname, '/data/sample.db');

This will create a valid, absolute path for each operating system (paths in Windows use \ whereas OSX and Linux uses /). Remember __dirname is whatever your current directory is, so everything after that has to be relative to it.

edited Jun 02 '16 at 23:00

answered Jun 02 '16 at 22:55

ccnokes

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@srivignes remember to accept one of these answers if it helped :) – ccnokes Jun 23 '16 at 16:11
@srivignes to accept an answer on stackoverflow, you have to click the gray checkmark icon to the left of the answer. – ccnokes Sep 29 '16 at 18:45

score 0 · Answer 2 · answered Jun 01 '16 at 07:38

0

You should provide a protocol prefix to the path. For example: "file://[your path here]".

answered Jun 01 '16 at 07:38

Linh

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Cannot access files inside asar archive in electron app

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