dsteem

Robust Steem blockchain RPC client for Node.js and browsers.

• Pure-JS cryptography (@noble/curves, @noble/hashes) — no native bindings, no node-gyp, no prebuilds to verify
• Dual ESM + CommonJS distribution with TypeScript declarations
• Single-file browser bundle (UMD/IIFE, global dsteem)
• Same public API as v0.11.x — drop-in upgrade

Install

npm install dsteem
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Requires Node.js 22 LTS or newer. (v0.11.x supported older Node; v0.12 dropped the native secp256k1 build and the dead browser polyfills along with it.)

Quick start (Node)

import {Client} from 'dsteem'

const client = new Client('https://api.steemit.com')
// or, if the primary is down:
// const client = new Client('https://api.moecki.online')

for await (const block of client.blockchain.getBlocks()) {
    console.log(`New block, id: ${block.block_id}`)
}
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const {Client, PrivateKey} = require('dsteem')

const client = new Client('https://api.steemit.com')
const key = PrivateKey.fromLogin('username', 'password', 'posting')

client.broadcast.vote({
    voter: 'username',
    author: 'almost-digital',
    permlink: 'dsteem-is-the-best',
    weight: 10000
}, key).then(({block_num}) => console.log('Included in block:', block_num))
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Quick start (browser)

<script src="https://unpkg.com/dsteem@^0.12/dist/dsteem.browser.global.js"></script>
<script>
    const client = new dsteem.Client('https://api.steemit.com')
    client.database.getDiscussions('trending', {tag: 'writing', limit: 1}).then(([post]) => {
        document.body.innerHTML = `<h1>${post.title}</h1><h2>by ${post.author}</h2>`
    })
</script>
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The browser bundle inlines a Node Buffer polyfill (~20 KB) — consumers don't need to set anything up.

When using a bundler (webpack/vite/rollup), import {Client} from 'dsteem' resolves to the ESM build automatically.

API

Full API reference: https://blazeapps007.github.io/dsteem/

Public surface (everything v0.11.x exported is still exported the same way):

• Core: Client, PrivateKey, PublicKey, Signature, cryptoUtils
• Domain types: Asset, Price, Transaction, SignedTransaction, Operation, Types, all of the *Operation interfaces
• API helpers: Blockchain, DatabaseAPI, BroadcastAPI, RCAPI
• Utility helpers: the utils namespace (including buildWitnessUpdateOp)

New in v0.12.0 — additive only (no breaking changes): BroadcastAPI, CreateAccountOptions, and the resource-credit interfaces (RCAccount, RCParams, RCPool, Manabar, Resource, Pool, DynamicParam, PriceCurveParam) are now directly importable from the package root, so TypeScript consumers can write import type {Manabar} from 'dsteem' instead of digging the type out of a class signature.

Network

Default RPC for code samples is https://api.steemit.com. A community-maintained fallback is https://api.moecki.online. Set the URL when constructing Client.

What changed in v0.12

• Crypto: native secp256k1 (high-severity CVE in 3.x) + Node:crypto.createHash → pure-JS @noble/curves + @noble/hashes. Public API unchanged; signatures are still canonical (isCanonicalSignature) and accepted by Steem nodes. Old on-chain signatures still verify with the new backend.
• Bundle: browserify + tsify + babelify + uglifyjs + dts-generator → tsup (esbuild). Browser bundle dropped from 782 KB → 351 KB.
• Polyfills: core-js@2, regenerator-runtime, whatwg-fetch, node-fetch — all removed. Modern browsers and Node 22+ provide everything natively.
• Module format: dual ESM + CJS via the exports map; no more lib/ directory or build-time version.js rewrite.
• TypeScript: 3.1 → 5.x, with strict mode (strictNullChecks, noImplicitAny, noImplicitThis).
• Lint: tslint (deprecated) → ESLint 9 flat config + typescript-eslint 8.
• Tests: mocha 5 → 11, nyc → c8 (70 % coverage gate). Karma + Sauce Labs browser tests → Playwright (Chromium/Firefox/WebKit headless).
• CI: CircleCI + Travis → GitHub Actions, matrix on Node 22 + Node 24.

dist/ contents:

File	Purpose
dist/index.mjs	ESM entry (Node)
dist/index.cjs	CommonJS entry (Node)
dist/index.d.ts	TypeScript declarations
dist/dsteem.browser.global.js	Browser IIFE (global dsteem), inlines all deps + Buffer polyfill

License

BSD-3-Clause — see LICENSE.

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