Package Exports

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@morpho-dev/subsquid-evm-processor) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@morpho-dev/subsquid-evm-processor

Data fetcher and mappings executor for EVM-based chains with enhanced exponential retry mechanism.

This is a Morpho-maintained fork of @subsquid/evm-processor with additional features:

✅ Exponential retry for ALL errors (not just connection errors)
✅ True exponential backoff with configurable limits
✅ Jitter support to prevent thundering herd
✅ Enhanced retry configuration options
✅ Backward compatible with original @subsquid/evm-processor

Installation

npm install @morpho-dev/subsquid-evm-processor

Quick Start

import {EvmBatchProcessor} from '@morpho-dev/subsquid-evm-processor'

const processor = new EvmBatchProcessor()
    .setRpcEndpoint({
        url: 'https://eth.llamarpc.com',

        // Enable retry for ALL errors
        retryAllErrors: true,

        // Use exponential backoff
        useExponentialBackoff: true,
        exponentialBackoffInitialDelay: 100,
        maxBackoff: 60000,
        retryJitter: true,

        retryAttempts: 10,
    })
    .addLog({
        address: ['0x...'],
        topic0: ['0x...']
    })

processor.run(database, async ctx => {
    // Your processing logic
})

Enhanced Retry Features

See RETRY_CONFIGURATION.md for comprehensive documentation on:

Configuration options
Use cases and examples
Best practices
Migration guide
Troubleshooting

Original Documentation

For general usage and API documentation, see the original @subsquid/evm-processor documentation.

Key Differences from @subsquid/evm-processor

Feature	@subsquid/evm-processor	@morpho-dev/subsquid-evm-processor
Retry connection errors	✅	✅
Retry ALL errors	❌	✅
Exponential backoff	❌ (fixed schedule)	✅
Jitter support	❌	✅
Configurable max backoff	❌	✅

License

GPL-3.0-or-later

Upstream

Based on @subsquid/evm-processor v1.27.3