CODEWITHSUNDEEP
electron
Leo Sun
Leo Sun

Reputation: 1

how to use localstorage in electron

In an electron app, I use window.loadURL('http://example.com') to load my website, this website uses localStorage to save user data. My question is how to use the localStorage with Electron API?

Here is my code :

{
      label:'test',
      click:()=>{          
        let object = mainWindow.webContents.executeJavaScript('localStorage.length');
        console.log("localstorage.length:"+JSON.stringify(object));
      }
    }

But it will print localstorage.length:{}

Upvotes: 0

Views: 4894

Answers (1)

Erick
Erick

Reputation: 1245

executeJavaScript is an asynchronous function and returns a Promise. You need to either use async/await or chain .then() to access the value returned by the function.

 // inside an async function
 const object = await mainWindow.webContents.executeJavaScript('localStorage.length');
 console.log(`Localstorage length: ${object}`);

or 

mainWindow.webContents.executeJavaScript('localStorage.length')
  .then(object => console.log(`Localstorage length: ${object}`));

Check out this example openable in Electron Fiddle. Swap out loadFile for loadURL with your website, and you should be set.

Upvotes: 1

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