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

Community

Join the community if you have any other questions:

+darwinia:matrix.org

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...

Start

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

Initial Setup

./init.sh

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

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

You will also need to install the following packages:

Linux:

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

Mac:

brew install cmake pkg-config openssl git llvm

Building

./build.sh
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:

./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 \
--chain=local \
--key //Alice \
--port 30333 \
--validator \
--name AliceDarwiniaNode \
--telemetry-url ws://telemetry.polkadot.io:1024 \
--rpc-external \
--ws-external

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 \
--chain=local \
--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:

2019-05-24 16:45:33 Darwinia AppChain
2019-05-24 16:45:33   version 1.0.0-fdf0687-x86_64-macos
2019-05-24 16:45:33   by Evolution Land <hello@evolution.land>, 2017, 2018
2019-05-24 16:45:33 Chain specification: Local Testnet
2019-05-24 16:45:33 Node name: AliceNode
2019-05-24 16:45:33 Roles: AUTHORITY
2019-05-24 16:45:33 Best block: #19
2019-05-24 16:45:33 Using default protocol ID "sup" because none is configured in the chain specs
2019-05-24 16:45:33 Local node identity is: Qmc1RbjHGWGY4E4gkEGbSX3RMcfqbmZwZumga1uNaYQvU5

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:

2019-05-24 16:59:54 Idle (0 peers), best: #45 (0xf5d0…5549), finalized #0 (0xe6fe…6664), ⬇ 0 ⬆ 0
2019-05-24 16:59:54 Discovered external node address: /ip4/192.168.2.185/tcp/30333/p2p/Qmc1RbjHGWGY4E4gkEGbSX3RMcfqbmZwZumga1uNaYQvU5
2019-05-24 16:59:59 Idle (1 peers), best: #45 (0xf5d0…5549), finalized #0 (0xe6fe…6664), ⬇ 0.5kiB/s ⬆ 0.5kiB/s
2019-05-24 17:00:00 Starting consensus session on top of parent 0xf5d07ea0778109602f93c40bc9586e331355e68cfcf3deb1721a65258c545549
2019-05-24 17:00:00 Prepared block for proposing at 46 [hash: 0xc394f4f58614b4bf4ce45ef593b04cce5953eead47e72286d5d288f5f97f9c7d; parent_hash: 0xf5d0…5549; extrinsics: [0xfc6d…480f]]
2019-05-24 17:00:00 Pre-sealed block for proposal at 46. Hash now 0x2b21cf6d11e6978e548abcdc80da20bb7cf6eca8ed352b06464d7e3b43153c40, previously 0xc394f4f58614b4bf4ce45ef593b04cce5953eead47e72286d5d288f5f97f9c7d.
2019-05-24 17:00:00 Imported #46 (0x2b21…3c40)
2019-05-24 17:00:04 Idle (1 peers), best: #46 (0x2b21…3c40), finalized #0 (0xe6fe…6664), ⬇ 15 B/s ⬆ 0.1kiB/s

for Bob:

2019-05-24 16:59:53 Idle (0 peers), best: #45 (0xf5d0…5549), finalized #0 (0xe6fe…6664), ⬇ 0 ⬆ 0
2019-05-24 16:59:54 Discovered external node address: /ip4/192.168.2.185/tcp/30334/p2p/QmPQdzXx95sex3wtrUFPP1oS4AWRHBsbhMnAJmfKJqX5Ly
2019-05-24 16:59:58 Libp2p => Random Kademlia query has yielded empty results
2019-05-24 16:59:58 Idle (1 peers), best: #45 (0xf5d0…5549), finalized #0 (0xe6fe…6664), ⬇ 0.5kiB/s ⬆ 0.5kiB/s
2019-05-24 17:00:00 Imported #46 (0x2b21…3c40)
2019-05-24 17:00:02 Libp2p => Random Kademlia query has yielded empty results
2019-05-24 17:00:03 Idle (1 peers), best: #46 (0x2b21…3c40), finalized #0 (0xe6fe…6664), ⬇ 0.1kiB/s ⬆ 15 B/s
2019-05-24 17:00:08 Idle (1 peers), best: #46 (0x2b21…3c40), finalized #0 (0xe6fe…6664), ⬇ 63 B/s ⬆ 73 B/s
2019-05-24 17:00:10 Starting consensus session on top of parent 0x2b21cf6d11e6978e548abcdc80da20bb7cf6eca8ed352b06464d7e3b43153c40
2019-05-24 17:00:10 Prepared block for proposing at 47 [hash: 0xeba1f1859e37f0761b096e4a33026067a2f36a31ab8a01a503536c8603cacc27; parent_hash: 0x2b21…3c40; extrinsics: [0xc66c…35b9]]
2019-05-24 17:00:10 Pre-sealed block for proposal at 47. Hash now 0xe10a87970b7e4d3014d8faaa995e034cb4427d6fe0958c917f2ab572dc721969, previously 0xeba1f1859e37f0761b096e4a33026067a2f36a31ab8a01a503536c8603cacc27.

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

AlexChien/darwinia