Support for Expo managed workflow

New Feature Request

Current Limitation

It appears to me that at least additional instructions are needed in order to be able to run a Expo managed workflow without compilation errors, if that’s even possible at all.

Feature / Enhancement Description

After configuring the code to run in RN environment in the following manner:

import Moralis from "moralis/react-native";
import { MoralisProvider } from "react-moralis";

const getMoralis = () => Moralis

export default function App() {
  return (
    <MoralisProvider
      environment="native"
      getMoralis={getMoralis}
      appId="dxtPXb6rRSzQnIAcgIKScHS5sxrUI0dvmgO8xiQs"
      serverUrl="https://si9oaram1zec.usemoralis.com:2053/server">

I still get the following error when trying to run a newly created expo managed project:

[00:58:05] Android Bundling failed 15409ms
[00:58:05] Unable to resolve module events from D:\projects_2021\moralis\my-app\node_modules\moralis\lib\react-native\MoralisWeb3.js:  events could not be found within the project or in these directories:
[00:58:05]   node_modules\moralis\node_modules
[00:58:05]   node_modules
[00:58:05]
[00:58:05] If you are sure the module exists, try these steps:
[00:58:05]  1. Clear watchman watches: watchman watch-del-all
[00:58:05]  2. Delete node_modules and run yarn install
[00:58:05]  3. Reset Metro's cache: yarn start --reset-cache
[00:58:05]  4. Remove the cache: rm -rf /tmp/metro-*
[00:58:05]   167 | }
[00:58:05]   168 |
[00:58:05] > 169 | var EventEmitter = require('events');
[00:58:05]       |                             ^
[00:58:05]   170 |
[00:58:05]   171 | var EthereumEvents = {
[00:58:05]   172 |   CONNECT: 'connect',

Alternatives / Workarounds

With additional configuration based on this repository it’s possible to fix some dependency errors, one important issue to overcome being the fact that managed workflow projects rely on expo-crypto instead of react-native-crypto .

3rd Party References

expo-crypto feature set support is described here: https://docs.expo.dev/versions/latest/sdk/crypto/ Expo support discussion thread: https://expo.canny.io/feature-requests/p/crypto-api Moralis + RN boilerplate: https://github.com/ethereum-boilerplate/ethereum-react-native-boilerplate

[ErnoW]

Closing this issue as it is rather an implementation issue. The recommended way to use react-native is to use https://github.com/ethereum-boilerplate/ethereum-react-native-boilerplate

Any questions or support can be asked in the forum as we are more active there with support and developers 😃

[adamsr123]

@ErnoW expo is a great tool for working with react-native, I think this should be addressed