48 lines
1.6 KiB
Plaintext
48 lines
1.6 KiB
Plaintext
|
_section: React Native (and ilk) @<cookbook-reactnative>
|
||
|
|
|
||
|
|
The [[link-react-native]] framework has become quite popular and
|
||
|
|
has many popular forks, such as [[link-expo]].
|
||
|
|
|
||
|
|
React Native is based on [[link-javascriptcore]] (part of WebKit) and
|
||
|
|
does not use Node.js or the common Web and DOM APIs. As such,
|
||
|
|
there are many operations missing that a normal web environment
|
||
|
|
or Node.js instance would provide.
|
||
|
|
|
||
|
|
For this reason, there is a [[link-npm-ethersproject-shims]] module
|
||
|
|
provided to fill in the holes.
|
||
|
|
|
||
|
|
|
||
|
|
_subsection: Installing @<cookbook-reactnative-shims>
|
||
|
|
|
||
|
|
To use ethers in React Native, you must either provide shims for the needed
|
||
|
|
missing functionality, or use the ethers.js shim.
|
||
|
|
|
||
|
|
It is **HIGHLY RECOMMENDED** you check out the [security section](cookbook-reactnative-security>
|
||
|
|
below for instructions on installing pacakges which can affect the security
|
||
|
|
of your application.
|
||
|
|
|
||
|
|
After installing packages, you may need to restart your packager and company.
|
||
|
|
|
||
|
|
_code: Installing @lang<shell>
|
||
|
|
|
||
|
|
/home/ricmoo/my-react-project> npm install @ethersproject/shims --save
|
||
|
|
|
||
|
|
_code: Importing @lang<script>
|
||
|
|
|
||
|
|
// Pull in the shims (BEFORE importing ethers)
|
||
|
|
import "@ethersproject/shims"
|
||
|
|
|
||
|
|
// Import the ethers library
|
||
|
|
import { ethers } from "ethers";
|
||
|
|
|
||
|
|
|
||
|
|
_subsection: Security @<cookbook-reactnative-security>
|
||
|
|
|
||
|
|
The React Native environment does not contain a secure random source, which
|
||
|
|
is used when computing random private keys. This could result in private
|
||
|
|
keys that others could guess, allowing the funds to be stolen.
|
||
|
|
|
||
|
|
For this reason, it is **HIGHLY RECOMMENDED** to get either the
|
||
|
|
[[link-npm-react-native-crypto]] module working or some equivalent.
|
||
|
|
|