EigenDA SDK

A developer-friendly TypeScript/JavaScript SDK for interacting with EigenDA proxy. This SDK simplifies the process of storing and retrieving data using EigenDA's data availability solution.

Installation

npm install eigenda-sdk

Limits and Costs

• Maximum Blob Size: 2.5MB per blob
• Cost: 0.015 ETH ($60) per GB

Need higher limits or credits for student/indie projects? Contact us

Quick Start

import { EigenDAClient } from 'eigenda-sdk';

// Initialize the client
const client = new EigenDAClient({
  apiUrl: 'YOUR_API_URL',  // Optional: defaults to mainnet
  rpcUrl: 'YOUR_RPC_URL',  // Optional: defaults to mainnet
  privateKey: 'YOUR_PRIVATE_KEY'
});

// Upload data
const uploadResult = await client.upload('Hello EigenDA!');
console.log('Upload Job ID:', uploadResult.jobId);

// Check status
const status = await client.getStatus(uploadResult.jobId);
console.log('Status:', status);

// Retrieve data
const data = await client.retrieve({ jobId: uploadResult.jobId });
console.log('Retrieved Data:', data);

Features

• Simple and intuitive API
• TypeScript support
• Comprehensive error handling
• Automatic retries and status checking
• Full type definitions
• Promise-based async/await interface

API Reference

EigenDAClient

The main class for interacting with EigenDA.

Constructor

new EigenDAClient(config?: {
  apiUrl?: string;
  rpcUrl?: string;
  privateKey?: string;
  creditsContractAddress?: string;
})

Methods

upload(content: string, identifier?: Uint8Array): Promise<UploadResponse>

Upload data to EigenDA.

getStatus(jobId: string): Promise<StatusResponse>

Check the status of an upload.

retrieve(options: RetrieveOptions): Promise<any>

Retrieve data from EigenDA.

getBalance(identifier: Uint8Array): Promise<number>

Get the credit balance for an identifier.

topupCredits(identifier: Uint8Array, amountEth: number): Promise<{ transactionHash: string; status: string }>

Add credits to an identifier.

Error Handling

The SDK includes comprehensive error handling. All methods throw typed errors that extend Error:

try {
  await client.upload('Hello EigenDA!');
} catch (error) {
  if (error instanceof EigenDAError) {
    console.error('EigenDA Error:', error.message);
  }
}

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT License - see the LICENSE file for details.