filecoin-pin/dist/create-pinning-helia.js

Bridge IPFS content to Filecoin Onchain Cloud using familiar tools

import { noise } from '@chainsafe/libp2p-noise';
import { yamux } from '@chainsafe/libp2p-yamux';
import { bitswap } from '@helia/block-brokers';
import { identify } from '@libp2p/identify';
import { tcp } from '@libp2p/tcp';
import { multiaddr } from '@multiformats/multiaddr';
import { MemoryDatastore } from 'datastore-core';
import { createHelia } from 'helia';
import { createLibp2p } from 'libp2p';
import { CARWritingBlockstore } from './car-blockstore.js';
/**
 * Create a Helia node with CAR-writing blockstore for a specific pin operation
 * This combines the server and CAR Helia functionality into one instance
 */
export async function createPinningHeliaNode(options) {
    const { logger, rootCID, outputPath, origins = [] } = options;
    // Parse origins into multiaddrs
    const dialTargets = origins
        .map((origin) => {
        try {
            return multiaddr(origin);
        }
        catch (error) {
            logger.warn({ origin, error }, 'Failed to parse origin multiaddr');
            return null;
        }
    })
        .filter((addr) => addr != null);
    const libp2p = await createLibp2p({
        addresses: {
            listen: ['/ip4/0.0.0.0/tcp/0'], // Random port
        },
        transports: [tcp()],
        connectionEncrypters: [noise()],
        streamMuxers: [yamux()],
        services: {
            identify: identify(),
        },
        // No bootstrap or mdns - we'll connect directly to origins
    });
    // Create CAR-writing blockstore
    const carBlockstore = new CARWritingBlockstore({
        rootCID,
        outputPath,
        logger,
    });
    // Set up event handlers for monitoring
    carBlockstore.on('block:stored', (data) => {
        logger.debug({ cid: data.cid.toString(), size: data.size }, 'Block stored to CAR file');
    });
    carBlockstore.on('block:missing', (data) => {
        logger.warn({ cid: data.cid.toString() }, 'Block not found during fetch');
    });
    const helia = await createHelia({
        libp2p,
        blockstore: carBlockstore,
        datastore: new MemoryDatastore(),
        blockBrokers: [bitswap()],
    });
    logger.info(`Pinning Helia node started with peer ID: ${helia.libp2p.peerId.toString()}`);
    logger.info(`Writing blocks to CAR file: ${outputPath}`);
    // Connect to origin nodes if provided
    if (dialTargets.length > 0) {
        logger.info({ origins: dialTargets.length }, 'Connecting to origin nodes');
        for (const addr of dialTargets) {
            try {
                if (addr != null) {
                    await helia.libp2p.dial(addr);
                    logger.info({ addr: addr.toString() }, 'Connected to origin node');
                }
            }
            catch (error) {
                logger.warn({ addr: addr?.toString(), error }, 'Failed to connect to origin node');
            }
        }
    }
    return { helia, blockstore: carBlockstore };
}
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