basic

chainblocks example: basic

The minimum runnable chainblocks demo. Opens a ledger backed by a temp-directory FileStore, appends three blocks, reads them back, verifies the chain, and cleans up.

Run

npm install
npm start

Expected output:

--- chain ---
  seq=0 kind=ledger.genesis hash=sha256:...
  seq=1 kind=demo.event     hash=sha256:...
  seq=2 kind=demo.event     hash=sha256:...
  seq=3 kind=demo.event     hash=sha256:...

✓ Chain valid: 4 blocks, head sha256:...

What this demonstrates

• openLedger({ store, name, writer }) — creating / opening a ledger
• ledger.append({ kind, payload }) — appending typed entries
• ledger.read() — async-iterating the chain
• ledger.verify() — checking the integrity of every link
• ledger.close() — releasing the store's resources