@credcli/hash

Calculate IPFS CIDv0 hashes from strings, buffers, or files — no IPFS node required.

Install

npm install @credcli/hash

CLI

# Hash a string
credcli-hash "hello world"
# Qmf412jQZiuVUtdgnB36FXFX7xg5V6KEbSJ4dpQuhkLyfD

# Hash a file
credcli-hash --file ./document.pdf

# Hash from stdin
echo -n "hello world" | credcli-hash --stdin

Library

import { hashString, hashBuffer, hashFile } from '@credcli/hash'

const cid = await hashString('hello world')
// => "Qmf412jQZiuVUtdgnB36FXFX7xg5V6KEbSJ4dpQuhkLyfD"

const cid2 = await hashBuffer(Buffer.from('hello world'))
// => "Qmf412jQZiuVUtdgnB36FXFX7xg5V6KEbSJ4dpQuhkLyfD"

const cid3 = await hashFile('./document.pdf')
// => "Qm..."

Notes

• Returns CIDv0 (Qm... prefix, base58btc-encoded SHA-256 multihash)
• Deterministic — same input always produces the same CID
• Uses ipfs-only-hash under the hood