Playing with IndexedDB on WhatsApp Web

index.js

function openDatabase(...args) {
    return new Promise((resolve, reject) => {
        const conn = indexedDB.open(...args)
        conn.onsuccess = e => resolve({ db: e.target.result })
        conn.onerror = e => reject(e.target.result)
    })
}

function getContactTransaction({ db }) {
    const store = db.transaction(['contact']).objectStore('contact')
    return new Promise((resolve, reject) => {
        const request = store.get('<intl-phone-number>@s.whatsapp.net')
        request.onsuccess = e => resolve({ db, contact: e.target.result })
        request.onerror = e => reject(e.target.result)
    })
}

function updateContactTransaction({ db, contact }) {
    const store = db.transaction(['contact'], 'readwrite').objectStore('contact')
    return new Promise((resolve, reject) => {
        const updatedContact = {
            id: contact.id,
            isAddressBookContact: 1,
            isContactSyncCompleted: 1,
            pushname: "Name",
            name: "Name",
            shortName: "Name",
            type: "in"
        }
        const request = store.put(updatedContact)
        request.onsuccess = e => resolve(e.target.result)
        request.onerror = e => reject(e.target.result)
    })
}

void openDatabase('model-storage', 810)
    .then(getContactTransaction)
    .then(updateContactTransaction)
    .then(updatedKey => console.log(updatedKey))
    .catch(err => console.error(err))