request not updating (electron.js) - javascript

(sorry my english is poor)
Hi, i'm new with electron.js i'm building an app can get temp mails ... the app is working but the problem is the content not updating. when i send a email to the temp-mail this not appairs but if i close and open the app the inbox appairs... i don't know what is the problem.
Here is the code:
renderer.js
input_inbox.addEventListener("click", async () => {
const email_inbox = input_email.value; // get mail generate randomly and pass
window.TempMail.getInbox(email_inbox); // to the main process
window.TempMail.send('sending', (data) => {console.log(data)});
});
main.js
ipcMain.on("getInbox", (event, arg) => {
var address = new TempMail(arg); // get from renderer and create email
address.fetchEmails(function (err, body) {
console.log(body) // show the content in console.
mainWindow.webContents.send('sending', body.messages[0].from)
if (!body.messages[0]?.from === undefined) {
console.log(body.messages[0].from);
}
});
});
At this point, if i send an email to the generate email this not have inbox until close and open the app.
console.log before close and open the app.. :
{
address: 'PjrlERcEoEPU#1secmail.com#1secmail.com',
messageCount: 0,
messages: []
}
console.log after close and open the app:
{
address: 'PjrlERcEoEPU#1secmail.com',
messageCount: 1,
messages: [
{
from: 'my-email#gmail.com',
timestamp: '2022-09-04 20:03:04',
subject: 'skajj',
message: 'kjkjkj\n'
}
]
}

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Hope you could help me figure this thing.
Thank you very much.

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Fetching values from email in protractor test case

I need to test a protractor test case in which a user signs up, receives an email, goes to the link provided in the email and fills up his/her details in activation signup form.
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Prerequisites:
mail-listener2 package
understanding of the concept of promises
Step by step instructions:
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In your protractor config initialize Mail Listener and make it available globally:
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Create a helper getLastEmail() function which would wait for an email to be retrieved:
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});
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And Cheers!
I had to do the same thing but the mail testing server we were using did not have imap support.
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