https://github.com/derricklee918/sol-idl-fetcher

Retrieves the IDL for a Solana program using Anchor. This includes an example with the pump.fun program's IDL.
https://github.com/derricklee918/sol-idl-fetcher

pumpfun solana solana-program spltoken

Last synced: 15 days ago
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Retrieves the IDL for a Solana program using Anchor. This includes an example with the pump.fun program's IDL.

• Host: GitHub
• URL: https://github.com/derricklee918/sol-idl-fetcher
• Owner: derricklee918
• Created: 2024-09-16T05:33:07.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-09-16T05:58:10.000Z (5 months ago)
• Last Synced: 2025-01-22T02:14:06.697Z (15 days ago)
• Topics: pumpfun, solana, solana-program, spltoken
• Language: TypeScript
• Homepage:
• Size: 7.94 MB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Solana IDL Fetcher

This repository provides tools and scripts for fetching the Interface Definition Language (IDL) of deployed programs on the Solana blockchain using the `@project-serum/anchor` library. This project is set up using TypeScript and includes essential modules to facilitate IDL fetching and management.

Services are for hire, contact me at 

https://t.me/@dwlee918

## Example

In this example you can see me run the script for the pump.fun program and the marinade finance program

https://github.com/user-attachments/assets/6eae475b-2d8f-46c2-ba7f-714a37882647

## Features

- Fetch IDL of deployed programs on the Solana blockchain.

- Saves the IDL to a json file for further usage or storage

- Easy integration into existing projects.

## Prerequisites

Ensure you have the following installed:

- [Node.js](https://nodejs.org/) (version 14 or later)

- [npm](https://www.npmjs.com/)

- [TypeScript](https://www.typescriptlang.org/)

## Installation

To install the package, clone the repository and install the dependencies:

```bash

git clone https://github.com/derricklee918/Sol-IDL-fetcher.git

cd Sol-IDL-fetcher

npm install

```

## Usage

To compile and run the scripts:

1. Configure your environment variables as instructed.

2. Compile the TypeScript files:

```bash

npx tsc

```

3. Run the compiled JavaScript file:

```bash

node example.js

```

## Important Note

In order to use the `fetchIdl` method, an IDL must have been previously initialized via the Anchor CLI's `anchor idl init` command. For example, the `pump.fun` program with the ID `6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P` will not work on mainnet-beta, but if you try it on devnet it will actually return the valid program IDL.

```typescript

/**

 * Fetches an idl from the blockchain.

 *

 * In order to use this method, an IDL must have been previously initialized

 * via the anchor CLI's `anchor idl init` command.

 *

 * @param programId The on-chain address of the program.

 * @param provider  The network and wallet context.

 */

public static async fetchIdl(

  address: Address,

  provider?: Provider

): Promise {

  provider = provider ?? getProvider();

  const programId = translateAddress(address);

  const idlAddr = await idlAddress(programId);

  const accountInfo = await provider.connection.getAccountInfo(idlAddr);

  if (!accountInfo) {

    return null;

  }

  // Chop off account discriminator.

  let idlAccount = decodeIdlAccount(accountInfo.data.slice(8));

  const inflatedIdl = inflate(idlAccount.data);

  return JSON.parse(utf8.decode(inflatedIdl));

}

```

## Project Structure

- `example.ts`: Main code file

- `package.json`: Project metadata and dependencies.

- `tsconfig.json`: TypeScript configuration file.

## Contributing

Contributions are welcome! Please fork the repository and submit a pull request with your improvements.

1. Fork the repository

2. Create your feature branch (`git checkout -b feature/YourFeature`)

3. Commit your changes (`git commit -m 'Add some feature'`)

4. Push to the branch (`git push origin feature/YourFeature`)

5. Open a pull request