Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Can't use Dexie in react-native #1473

aguycalled opened this issue Jan 9, 2022 · 2 comments

Can't use Dexie in react-native #1473

aguycalled opened this issue Jan 9, 2022 · 2 comments


Copy link

aguycalled commented Jan 9, 2022

I am trying to use a library in react-native which depends on Dexie. By using indexededdbshim I intend to have react-native-sqlite-2 as backend instead of IndexedDB.

import SQLite from 'react-native-sqlite-2';
import setGlobalVars from 'indexeddbshim/dist/indexeddbshim-noninvasive';
global.window = global;

setGlobalVars(null, {
  checkOrigin: false,
  win: SQLite,
  deleteDatabaseFiles: false,
  useSQLiteIndexes: true

Independently of the use of the indexeddbshim strategy, I see this error:

ReferenceError: Can't find variable: addEventListener


Any clue on how to solve it?

Copy link

codemaster115 commented Feb 14, 2022

I am also getting the same issue on React-Native(version 0.67).

Copy link

cmpayc commented Apr 27, 2022

The problem is in the incomplete condition:

} else if (typeof self !== 'undefined' && typeof navigator !== 'undefined') {
// DOM verified - when typeof self !== "undefined", we are a window or worker. Not a Node process.
// Propagate local changes to remote tabs/windows via storage event and service worker
// via messages. We have this code here because of
globalEvents(DEXIE_STORAGE_MUTATED_EVENT_NAME, (changedParts) => {
try {
if (!propagatingLocally) {
if (typeof localStorage !== 'undefined') {
// We're a browsing window or tab. Propagate to other windows/tabs via storage event:
trig: Math.random(),
if (typeof self['clients'] === 'object') {
// We're a service worker. Propagate to our browser clients.
[...self['clients'].matchAll({ includeUncontrolled: true })].forEach(
(client) =>
} catch {}
// Propagate remote changes locally via storage event:
addEventListener('storage', (ev: StorageEvent) => {

react-native has a navigator and self properties but no addEventListener function.

Thus, it is necessary to add additional checks on addEventListener, as is done in the file propagate-locally.ts:

if (typeof dispatchEvent !== 'undefined' && typeof addEventListener !== 'undefined') {
globalEvents(DEXIE_STORAGE_MUTATED_EVENT_NAME, updatedParts => {
if (!propagatingLocally) {
let event: CustomEvent<ObservabilitySet>;
if (isIEOrEdge) {
event = document.createEvent('CustomEvent');
event.initCustomEvent(STORAGE_MUTATED_DOM_EVENT_NAME, true, true, updatedParts);
} else {
event = new CustomEvent(STORAGE_MUTATED_DOM_EVENT_NAME, {
detail: updatedParts
propagatingLocally = true;
propagatingLocally = false;
addEventListener(STORAGE_MUTATED_DOM_EVENT_NAME, ({detail}: CustomEvent<ObservabilitySet>) => {

For example:

} else if (
  typeof self !== 'undefined' &&
  typeof navigator !== 'undefined' &&
  typeof addEventListener !== 'undefined'
) { 

dfahlander added a commit that referenced this issue Apr 27, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
None yet
None yet

No branches or pull requests

3 participants