dorafactory-node

A private chain based on substrate, with Frame V2

How to set up

This version(polkadot-v0.9.17) requires Rust version: nightly-2021-11-07-x86_64-unknown-linux-gnu

1. clone repo

git clone https://github.com/DoraFactory/dorafactory-node.git
cd dorafactory-node

2. compile and run

cargo build --release

Start Relaychain(Local Rococo relaychain)

prepare rococo-local-cfde.json
These commands are operated in your polkadot dictionary.And checkout to v0.9.16,also you should run cargo build --release to build it.

./target/release/polkadot --chain rococo-local-cfde.json --alice --tmp --port 30333 --ws-port 9944
./target/release/polkadot --chain rococo-local-cfde.json --bob --tmp --port 30334 --ws-port 9945
./target/release/polkadot --chain rococo-local-cfde.json --dave --tmp --port 30335 --ws-port 9946

Start dorafactory parachain

generate chain spec

./target/release/dorafactory-node build-spec --disable-default-bootnode > rococo-local-parachain-plain.json

modify the paraId

we build a prachain Id: 2115

// --snip--
  "para_id": 2115, // <--- your already registered ID
  // --snip--
      "parachainInfo": {
        "parachainId": 2115 // <--- your already registered ID
      },
  // --snip--

generate a raw chain spec derived from your modified plain chain spec

./target/release/dorafactory-node build-spec --chain rococo-local-parachain-plain.json --raw --disable-default-bootnode > rococo-local-parachain-2115-raw.json

obtain the wasm

./target/release/dorafactory-node export-genesis-wasm --chain rococo-local-parachain-2115-raw.json > para-2115-wasm

obtain the genesis state

./target/release/dorafactory-node export-genesis-state --chain rococo-local-parachain-2115-raw.json > para-2115-genesis

start the collator

./target/release/dorafactory-node \
--alice \
--collator \
--force-authoring \
--chain rococo-local-parachain-2115-raw.json \
--base-path /tmp/parachain/alice \
--port 40333 \
--ws-port 8844 \
-- \
--execution wasm \
--chain ../../../polkadot/rococo-local-cfde.json \
--port 30343 \
--ws-port 9977

then the parachain can not produce block, we need register our parachain in the relaychain https://docs.substrate.io/tutorials/v3/cumulus/connect-parachain/