Multichain Bridged Assets

1export const name = 'Multichain Bridged Assets';
2export const version = '0.0.6';
3export const license = 'MIT';
4
5interface Asset {
6  id: string
7  nativeChain: string
8  wrappersByChain: { [chain: string]: { address: string, decimals: number } }
9  stablecoin?: boolean
10  coingeckoId?: string
11}
12
13interface Chain {
14  id: string
15  name: string
16}
17
18const assets: Asset[] = [
19  {
20    id: 'eth',
21    nativeChain: 'ethereum',
22    coingeckoId: 'ethereum',
23    wrappersByChain: {
24      fantom: {
25        address: '0x74b23882a30290451A17c44f4F05243b6b58C76d',
26        decimals: 18,
27      },
28      moonbeam: {
29        address: '0xfa9343c3897324496a05fc75abed6bac29f8a40f',
30        decimals: 18,
31      },
32    },
33  },
34  {
35    id: 'usdt',
36    nativeChain: 'ethereum',
37    stablecoin: true,
38    wrappersByChain: {
39      fantom: {
40        address: '0x049d68029688eabf473097a2fc38ef61633a3c7a',
41        decimals: 6,
42      },
43      moonbeam: {
44        address: '0xefaeee334f0fd1712f9a8cc375f427d9cdd40d73',
45        decimals: 6,
46      },
47    },
48  },
49  {
50    id: 'usdc',
51    nativeChain: 'ethereum',
52    stablecoin: true,
53    wrappersByChain: {
54      fantom: {
55        address: '0x04068DA6C83AFCFA0e13ba15A6696662335D5B75',
56        decimals: 6,
57      },
58      moonbeam: {
59        address: '0x818ec0a7fe18ff94269904fced6ae3dae6d6dc0b',
60        decimals: 6,
61      },
62    },
63  },
64  {
65    id: 'dai',
66    nativeChain: 'ethereum',
67    stablecoin: true,
68    wrappersByChain: {
69      moonbeam: {
70        address: '0x765277eebeca2e31912c9946eae1021199b39c61',
71        decimals: 18,
72      },
73    },
74  },
75  {
76    id: 'wbtc',
77    nativeChain: 'ethereum',
78    coingeckoId: 'bitcoin',
79    wrappersByChain: {
80      moonbeam: {
81        address: '0x922d641a426dcffaef11680e5358f34d97d112e1',
82        decimals: 8,
83      },
84    },
85  },
86  {
87    id: 'ftm',
88    nativeChain: 'fantom',
89    coingeckoId: 'fantom',
90    wrappersByChain: {
91      // It appears this is _not_ a bridged token...
92      // ethereum: {
93      //   address: '0x4e15361fd6b4bb609fa63c81a2be19d873717870',
94      //   decimals: 18,
95      // },
96      moonbeam: {
97        address: '0xc19281f22a075e0f10351cd5d6ea9f0ac63d4327',
98        decimals: 18,
99      },
100    },
101  },
102  {
103    id: 'busd',
104    nativeChain: 'bsc',
105    stablecoin: true,
106    wrappersByChain: {
107      moonbeam: {
108        address: '0xA649325Aa7C5093d12D6F98EB4378deAe68CE23F',
109        decimals: 18,
110      },
111    },
112  },
113  {
114    id: 'avax',
115    nativeChain: 'avalanche',
116    coingeckoId: 'avalanche-2',
117    wrappersByChain: {
118      moonbeam: {
119        address: '0x4792C1EcB969B036eb51330c63bD27899A13D84e',
120        decimals: 18,
121      },
122    },
123  },
124  {
125    id: 'ldo',
126    nativeChain: 'ethereum',
127    coingeckoId: 'lido-dao',
128    wrappersByChain: {
129      moonbeam: {
130        address: '0x9fda7ceec4c18008096c2fe2b85f05dc300f94d0',
131        decimals: 18,
132      },
133    },
134  },
135  {
136    id: 'matic',
137    nativeChain: 'ethereum',
138    coingeckoId: 'matic-network',
139    wrappersByChain: {
140      moonbeam: {
141        address: '0x3405a1bd46b85c5c029483fbecf2f3e611026e45',
142        decimals: 18,
143      },
144    },
145  },
146];
147
148const chains: Chain[] = [
149  {
150    id: 'ethereum',
151    name: 'Ethereum',
152  },
153  {
154    id: 'avalanche',
155    name: 'Avalanche'
156  },
157  {
158    id: 'bsc',
159    name: 'BNB Chain',
160  },
161  {
162    id: 'fantom',
163    name: 'Fantom',
164  },
165  {
166    id: 'moonbeam',
167    name: 'Moonbeam',
168  },
169]
170
171export function setup(sdk: Context) {
172  const getEVMSupply = async (chain: string, addr: string) => {
173    const supply = await sdk.ethers.getERC20Contract(addr, chain).totalSupply();
174    return parseInt(supply.toString());
175  }
176
177  const getBridged = async (chainA: string, chainB: string) => {
178    let total = 0;
179    for (const asset of assets) {
180      if (asset.nativeChain === chainA && asset.wrappersByChain[chainB]) {
181        const [wrapperSupply, price] = await Promise.all([
182          getEVMSupply(chainB, asset.wrappersByChain[chainB].address),
183          asset.stablecoin ? Promise.resolve(1) : sdk.coinGecko.getCurrentPrice(asset.coingeckoId),
184        ]);
185        const wrapperSupplyDecimal = wrapperSupply / (10 ** asset.wrappersByChain[chainB].decimals);
186        const bridgedValue = wrapperSupplyDecimal * price;
187        total += bridgedValue;
188      }
189    }
190    return total;
191  }
192
193  const metadata = {
194    description: 'Multichain is a protocol for routing messages and assets across various blockchains using a network of distributed nodes.',
195    securityModel: 'Multichain relies on a network of individual nodes (described as "MPC Network") to monitor network activity. These nodes aggregate signatures off-chain to generate the on-chain transactions needed to facilitate the bridge activity. The number of signers, their identities, as well as the signer selection process is unknown at this time.',
196    website: 'https://multichain.org',
197    icon: sdk.ipfs.getDataURILoader('Qma3EuqaBNUMX3sSHqAzmwKVBNxV7UL8dZCfzyu4XXq9WX', 'image/svg+xml'),
198    category: 'multisig',
199  };
200
201  sdk.registerBundle('multichain', {
202    ...metadata,
203    name: 'Multichain',
204  });
205
206  for (let i = 0; i < chains.length; i += 1) {
207    for (let j = i + 1; j < chains.length; j += 1) {
208      const chainA = chains[i];
209      const chainB = chains[j];
210
211      sdk.register({
212        id: `multichain-${chainA.id}-${chainB.id}`,
213        bundle: 'multichain',
214        queries: {
215          currentValueBridgedAToB: () => getBridged(chainA.id, chainB.id),
216          currentValueBridgedBToA: () => getBridged(chainB.id, chainA.id),
217        },
218        metadata: {
219          ...metadata,
220          name: `Multichain`,
221          subtitle: `${chainA.name}-${chainB.name}`,
222          chainA: chainA.id,
223          chainAName: chainA.name,
224          chainB: chainB.id,
225          chainBName: chainB.name,
226        },
227      })
228    }
229  }
230}
231