# eth-json-rpc-middleware

> Ethereum-related json-rpc-engine middleware.

Latest version **9.0.1** (published 2022-10-05) · ISC license · 0 weekly downloads

## Install

```sh
npm install eth-json-rpc-middleware
pnpm add eth-json-rpc-middleware
yarn add eth-json-rpc-middleware
bun add eth-json-rpc-middleware
```

## Health

**Score 35/100 (D)** — status: abandoned.

Positive: has types; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support.

Negative: abandoned.

## Facts

| | |
|---|---|
| Version | 9.0.1 |
| Published | 2022-10-05 |
| First published | 2017-05-22 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | bundled |
| Module format | CommonJS |
| Node | >=14.0.0 |
| Dependencies | 11 |
| Unpacked size | 136.4 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 181 |
| Maintainers | danfinlay, kumavis, rekmarks, metamaskbot, gudahtt, brad.decker, sethkfman |

## Links

- npm: https://www.npmjs.com/package/eth-json-rpc-middleware
- Repository: https://github.com/MetaMask/eth-json-rpc-middleware
- Homepage: https://github.com/MetaMask/eth-json-rpc-middleware#readme
- Issues: https://github.com/MetaMask/eth-json-rpc-middleware/issues
- npm.io page: https://npm.io/package/eth-json-rpc-middleware

## Dependencies (11)

- [btoa](https://npm.io/package/btoa.md) ^1.2.1
- [pify](https://npm.io/package/pify.md) ^3.0.0
- [clone](https://npm.io/package/clone.md) ^2.1.1
- [node-fetch](https://npm.io/package/node-fetch.md) ^2.6.7
- [eth-rpc-errors](https://npm.io/package/eth-rpc-errors.md) ^4.0.3
- [@metamask/utils](https://npm.io/package/@metamask/utils.md) ^3.0.3
- [json-rpc-engine](https://npm.io/package/json-rpc-engine.md) ^6.1.0
- [eth-block-tracker](https://npm.io/package/eth-block-tracker.md) ^5.0.1
- [json-stable-stringify](https://npm.io/package/json-stable-stringify.md) ^1.0.1
- [@metamask/eth-sig-util](https://npm.io/package/@metamask/eth-sig-util.md) ^5.0.0
- [@metamask/safe-event-emitter](https://npm.io/package/@metamask/safe-event-emitter.md) ^2.0.0

## Recent versions

- 9.0.1 (latest) — 2022-10-05
- 9.0.0 — 2022-08-24
- 8.1.0 — 2022-04-29
- 8.0.2 — 2022-04-27
- 8.0.1 — 2021-12-07
- 8.0.0 — 2021-11-05
- 7.0.1 — 2021-03-26
- 7.0.0 — 2021-03-26
- 6.0.0 — 2020-09-23
- 5.1.0 — 2020-09-22
- 5.0.3 — 2020-09-14
- 5.0.2 — 2020-07-04
- 5.0.1 — 2020-06-23
- 5.0.0 — 2020-06-23
- 4.4.1 — 2020-02-14
- … 56 more at https://npm.io/package/eth-json-rpc-middleware/versions

## README

# eth-json-rpc-middleware

Ethereum-related middleware for [`json-rpc-engine`](https://github.com/MetaMask/json-rpc-engine).

See tests for usage details.

## Running Tests

```bash
yarn test
```

## See Also

- [`eth-json-rpc-filters`](https://github.com/MetaMask/eth-json-rpc-filters).
- [`eth-json-rpc-infura`](https://github.com/MetaMask/json-rpc-infura).
- [`json-rpc-engine`](https://github.com/MetaMask/json-rpc-engine).

---
_Source: https://npm.io/package/eth-json-rpc-middleware · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._