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Installation

Add the Anchor library to your project: 
yarn add @coral-xyz/anchor

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Polyfills

The following polyfills are needed:

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Install buffer

::: 

```shell
yarn add buffer
Then, import the library in your app’s entrypoint file (e.g index.js), before the Anchor library is imported. 
import { Buffer } from "buffer";
global.Buffer = Buffer;

Buffer.prototype.subarray = function subarray(
  begin: number | undefined,
  end: number | undefined
) {
  const result = Uint8Array.prototype.subarray.apply(this, [begin, end]);
  Object.setPrototypeOf(result, Buffer.prototype); // Explicitly add the `Buffer` prototype (adds `readUIntLE`!)
  return result;
};

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Install getRandomValues

Add the react-native-get-random-values library to your project. 
yarn add react-native-get-random-values
Then, import the library in your app’s entrypoint file (e.g index.js), before the Anchor library is imported. 
import "react-native-get-random-values";
// ...other imports below

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Install assert

Add the assert library to your project. 
yarn add assert

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Install text-encoding

Add the text-encoding library to your project. 

```shell
yarn add text-encoding
Then, populate the global.TextEcoder value in your app’s entrypoint file (e.g index.js). 
// ...imports
global.TextEncoder = require("text-encoding").TextEncoder;

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Example

Last modified on February 10, 2026