Darwinia Relay Chain

Darwinia Relay Chain is the hub relay chain connecting different Darwinia AppChains and can be connected to Polkadot as a Polkadot Parachain.

It could have two models, the Solo model and the Polkadot model. For more details, go to RFC-0007

Architecture

Road Map

Road Map

Community

Join the community if you have any other questions:

+darwinia:matrix.org

Or:

Riot.im

Applications and Examples

• Evolution Land and Project Github, a virtual management game based on blockchain and autonomy.
• Darwinia AppChain Application Chain SDK Suite
• Darwinia Bridge Darwinia Bridge Parachain and Tools to connect to other chains such as Ethereum, TRON and EOS etc.
• More are coming...

Crayfish Testnet

Quick start (professional):

• Telemetry: https://telemetry.polkadot.io/#list/Darwinia%20Crayfish%20Testnet
• Darwinia Web Wallet: https://testnet-wallet.darwinia.network
• Bootnodes:
  • /ip4/45.249.244.33/tcp/20222/p2p/QmPCSb9yCRAXnqvG6AnX27X6gutvVDq4NBPDNJtnBmNk43
  • /ip4/121.199.60.87/tcp/20222/p2p/QmaRDRZZpmY9FwjSwW8JhfkyaHc6XRHsLWnp6cLtyb3FCF
  • /ip4/35.234.9.96/tcp/20223/p2p/QmdAZq8tFrei8qQAhbAe7NwrZzNVhitvUBp9pw8yLjk81r

Full tutorial (beginner):

• en_us: not yet
• zh_cn: https://talk.darwinia.network/topics/147

Start

proceed to the Running instructions or follow the instructions below for the manual setup.

Require Packages

Linux:

sudo apt install cmake pkg-config libssl-dev git clang libclang-dev

macOS:

brew install cmake pkg-config openssl git llvm

Initial Setup

Initalize with darwinia-builder: darwinia-builder which also use for cross compile

Or, you can run scripts step by step, like the following:

curl https://sh.rustup.rs -sSf | sh
rustup install nightly
rustup default nightly
rustup target add wasm32-unknown-unknown
cargo install --git https://github.com/alexcrichton/wasm-gc

Build

Building with darwinia-builder:

darwinia-builder --release --wasm

Building with script:

cargo build --release

Running

./target/release/darwinia --dev

Play with gui, open https://polkadot.js.org/apps/#/settings

And select the local node (127.0.0.1), please note that for the current GUI version, custom struct&tpyes must be configured before viewing.

Go to https://polkadot.js.org/apps/#/settings/developer

And copy the content in:

./types.json

To the type definitions text area.

Running Local Testnet (default: Alice and Bob)

First build:

darwinia-builder --release --wasm

Or:

./build.sh
cargo build --release

Alice Starts first

Alice should run t his command from ${PATH_TO_DARWINIA_APPCHAIN_ROOT}:

cd {path_to_darwinia_appchain_root}
./target/release/darwinia \
--base-path /tmp/alice \
--key //Alice \
--port 30333 \
--validator \
--name AliceDarwiniaNode \
--rpc-external \
--ws-external

rpc-external and ws-external flags are optional.

Bob Joins In

Now that Alice's node is up and running, Bob can join the network by bootstrapping from her node. His command will look very similar.

./target/release/darwinia \
--base-path /tmp/bob \
--key //Bob \
--port 30334 \
--validator \
--name BobDarwiniaNode \
--bootnodes /ip4/<Alices IP Address>/tcp/<Alices Port>/p2p/<Alices Node ID> \
--telemetry-url ws://telemetry.polkadot.io:1024 \
--rpc-external \
--ws-external

• If these two nodes are running on the same physical machine, Bob MUST specify a different --base-path and --port.

• Bob has added the --bootnodes flag and specified a single boot node, namely Alice's. He must correctly specify these three pieces of information which Alice can supply for him.

  • Alice's IP Address in the form 192.168.1.1
  • Alice's Port, probably 30333
  • Alice's node ID, copied from her log output. (proberblyQmc1RbjHGWGY4E4gkEGbSX3RMcfqbmZwZumga1uNaYQvU5 in the output above.)

• How to figure out Alice's Node ID

you can find Alice's node id in terminal outputs when AliceNode starts:

2019-06-29 18:22:56 Darwinia POC-1 Node
2019-06-29 18:22:56   version 0.1.0-9d2ab05-x86_64-macos
2019-06-29 18:22:56   by Darwinia Network, 2017-2019
2019-06-29 18:22:56 Chain specification: Darwinia POC-1 Testnet
2019-06-29 18:22:56 Node name: alexxxxx
2019-06-29 18:22:56 Roles: AUTHORITY
2019-06-29 18:22:56 Highest known block at #20
2019-06-29 18:22:56 Using default protocol ID "sup" because none is configured in the chain specs
2019-06-29 18:22:56 Local node identity is: QmdSidct8sAvQbMZE7YoU5hk3bPnpmQUN6BCo3Vgd8BZAG
2019-06-29 18:22:56 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:22:56 Using authority key 5FA9nQDVg267DEd8m1ZypXLBnvN7SFxYwV7ndqSYGiN9TTpu
2019-06-29 18:22:56 Running Grandpa session as Authority 5FA9nQDVg267DEd8m1ZypXLBnvN7SFxYwV7ndqSYGiN9TTpu
2019-06-29 18:22:57 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:22:59 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:23:01 Idle (0 peers), best: #20 (0xd7ab…9164), finalized #20 (0xd7ab…9164), ⬇ 0 ⬆ 0
^C2019-06-29 18:23:03 Libp2p => Random Kademlia query has yielded empty results

If all is going well, after a few seconds, the nodes should peer together and start producing blocks. You should see some lines like:

for Alice:

2019-06-29 18:25:06 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:25:08 Idle (0 peers), best: #20 (0xd7ab…9164), finalized #20 (0xd7ab…9164), ⬇ 0 ⬆ 0
2019-06-29 18:25:10 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:25:13 Idle (1 peers), best: #20 (0xd7ab…9164), finalized #20 (0xd7ab…9164), ⬇ 0.4kiB/s ⬆ 0.4kiB/s
2019-06-29 18:25:13 Discovered new external address for our node: /ip4/192.168.110.246/tcp/20222/p2p/QmdSidct8sAvQbMZE7YoU5hk3bPnpmQUN6BCo3Vgd8BZAG
2019-06-29 18:25:16 Imported #21 (0x737a…ea93)
2019-06-29 18:25:18 Idle (1 peers), best: #21 (0x737a…ea93), finalized #20 (0xd7ab…9164), ⬇ 1.2kiB/s ⬆ 0.9kiB/s
2019-06-29 18:25:20 Starting consensus session on top of parent 0x737a8e622371b9c33c7ed284ce5ed422b81e7fb02d1397dc1c1676dae5efea93
2019-06-29 18:25:20 Prepared block for proposing at 22 [hash: 0x3d0c8c24c5208432cfe87658b0cfe04db0b9ec0a16d4cd8b2e2cc40e8f03ba6a; parent_hash: 0x737a…ea93; extrinsics: [0x842d…8482, 0xfc43…52da]]
2019-06-29 18:25:20 Pre-sealed block for proposal at 22. Hash now 0x024b81b36f673b2c3338cc4665cb42190b82fc0342dba30b6bc2570080b80d78, previously 0x3d0c8c24c5208432cfe87658b0cfe04db0b9ec0a16d4cd8b2e2cc40e8f03ba6a.
2019-06-29 18:25:20 Imported #22 (0x024b…0d78)
2019-06-29 18:25:23 Idle (1 peers), best: #22 (0x024b…0d78), finalized #22 (0x024b…0d78), ⬇ 1.2kiB/s ⬆ 1.1kiB/s

for Bob:

2019-06-29 18:25:12 Highest known block at #20
2019-06-29 18:25:12 Using default protocol ID "sup" because none is configured in the chain specs
2019-06-29 18:25:12 Local node identity is: QmRJGKPvX76KZfGGhzUo6xTcb9UM9RwEM19bKqwxBDS5Vp
2019-06-29 18:25:12 Libp2p => Random Kademlia query has yielded empty results
2019-06-29 18:25:12 Unable to bind server to 127.0.0.1:9944. Trying random port.
2019-06-29 18:25:12 Using authority key 5GoNkf6WdbxCFnPdAnYYQyCjAKPJgLNxXwPjwTh6DGg6gN3E
2019-06-29 18:25:12 Running Grandpa session as Authority 5GoNkf6WdbxCFnPdAnYYQyCjAKPJgLNxXwPjwTh6DGg6gN3E
2019-06-29 18:25:13 Discovered new external address for our node: /ip4/192.168.110.246/tcp/20223/p2p/QmRJGKPvX76KZfGGhzUo6xTcb9UM9RwEM19bKqwxBDS5Vp
2019-06-29 18:25:16 Starting consensus session on top of parent 0xd7ab506dd6e388e8ccfcb62c6e64689be0a26fa1a0cfc4027d05c32d55a79164
2019-06-29 18:25:16 Prepared block for proposing at 21 [hash: 0x5e2f5d1ea92bd60087fd30f20a5917d1ca60ec5d5d32190f752bcf2f826c3a5c; parent_hash: 0xd7ab…9164; extrinsics: [0x977d…1cc9, 0x73e9…bfed]]
2019-06-29 18:25:16 Pre-sealed block for proposal at 21. Hash now 0x737a8e622371b9c33c7ed284ce5ed422b81e7fb02d1397dc1c1676dae5efea93, previously 0x5e2f5d1ea92bd60087fd30f20a5917d1ca60ec5d5d32190f752bcf2f826c3a5c.
2019-06-29 18:25:16 Imported #21 (0x737a…ea93)
2019-06-29 18:25:17 Idle (1 peers), best: #21 (0x737a…ea93), finalized #20 (0xd7ab…9164), ⬇ 1.4kiB/s ⬆ 1.7kiB/s
2019-06-29 18:25:20 Imported #22 (0x024b…0d78)
2019-06-29 18:25:22 Idle (1 peers), best: #22 (0x024b…0d78), finalized #22 (0x024b…0d78), ⬇ 1.0kiB/s ⬆ 1.1kiB/s
2019-06-29 18:25:24 Starting consensus session on top of parent 0x024b81b36f673b2c3338cc4665cb42190b82fc0342dba30b6bc2570080b80d78
2019-06-29 18:25:24 Prepared block for proposing at 23 [hash: 0x8947ad3cebd65d9de60166743eae1dd198cb10751764faefba6c71be8d5ccf5f; parent_hash: 0x024b…0d78; extrinsics: [0x5b14…3439, 0xec49…f2f5]]
2019-06-29 18:25:24 Pre-sealed block for proposal at 23. Hash now 0xcd96f0558e8c2f2a38e680f2eb280ccbb1422f6df3bc3dfa306ef89c943f8a05, previously 0x8947ad3cebd65d9de60166743eae1dd198cb10751764faefba6c71be8d5ccf5f.
2019-06-29 18:25:24 Imported #23 (0xcd96…8a05)
2019-06-29 18:25:27 Idle (1 peers), best: #23 (0xcd96…8a05), finalized #23 (0xcd96…8a05), ⬇ 1.0kiB/s ⬆ 1.1kiB/s
2019-06-29 18:25:28 Imported #24 (0xe4b1…e584)

The first line shows that Bob has discovered Alice on the network. The second shows that he has peered with her (1 peers), they have produced a block (best: #1 (0xf5d0…5549)), and the block is not finalized (finalized #0 (0xe6fe…6664)).

View On Telemetry

then you can find your Node displayed on Telemetry

For cross compile instructions, vist darwinia_builder