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Php versions – Ionic5 | Storage not ready on native Device

we are currently developing an app based on Ionic. To enable a new login and to keep the data for a long time, we use ionic storage. In the Android emulation (Android 11) everything seems to work fine. If I install the app on my smartphone (Android 11) my script pops and it breaks off.

The app is an app that returns the next access points for a delivery service. The whole thing works together with a PHP-RestAPI which works with a session. The session as well as access data and other data (the tour) should be saved in the storage. For security the whole AES256 is encrypted (The Values).

Is there a known problem, did I make a mistake?

But there is no active error. So far the problem only occurs on a real device after the bundler.

Here are some code snippets:

app.module.ts

imports: [
    IonicModule.forRoot(),
    IonicStorageModule.forRoot({
        name: '__tourenApp',
        driverOrder: ['sqlite', 'indexeddb', 'websql', 'localstorage'],
    }),
    ...
]

Datahandler:

Func-Decrypt:
….

    const result = await this.storage.get(key);
    if (typeof result !== 'undefined' && result !== '' && result !== null) {
        try {
            const res: string = await this.aes256.decrypt(this.secureKey, this.secureIV, result);
            this.srvUtil.logMessage(`Eintrag '${key}' mit Wert '${res}' entschlüsselt und aus dem lokalem Speicher geholt`);
            return res;
        } catch (error) {
            this.srvUtil.logMessage(`Es konnten keine Daten für den Key '${key}' aus dem Speicher geholt werden`, MessageType.Error);
        }
    } else {
        return '';
    }
 ... Encrypt-Func:
    try {
        const res = await this.aes256.encrypt(this.secureKey, this.secureIV, value);
        await this.storage.set(key, res);
        this.srvUtil.logMessage(`Neuen Eintrag '${key}' mit Wert '${value}' verschlüsselt und im lokalem Speicher gesichert`);
    } catch (error) {
        this.srvUtil.logMessage(
            `Fehler beim Setzen eines neuen Storage Eintrags mit dem Key ${key} und dem Wert ${value}`, MessageType.Error);
    }

Version details:

  • Ionic CLI: 6.12.1
  • Ionic Angular: 5.0.0
  • Ionic Storage: 2.2.0
  • Cordova: 9.0.0
  • Angular-Core: 9.0.0
Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    I found the error together with an expert. The error is in the drivers. There is obviously a problem under Cordova with sqlite. For all following therefore the information that it unfortunately only works with the driver variant "localstorage".


  2. 0

    This sounds like a bug that was reported. Apparently Ionic Storage doesn’t correctly wait for SQLite to be ready. The proposed workaround is to manually wait for the underlying localForage’s ready event:

    const localForage = await this.storage.ready();
localForage.ready(() => {
  // use storage
});
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