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Merge pull request #201 from kleros/feat/xdai-activation
Feat: xDAI activation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| import { Tokens } from "./chain-params"; | ||
|
|
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| export default function createWatchToken({ getChainParams }) { | ||
| return async function requestWatchToken(provider, token) { | ||
| if (![Tokens.stPNK, Tokens.PNK].includes(token)) { | ||
| throw new Error(`Invalid token: ${token}`); | ||
| } | ||
|
|
||
| const chainId = Number.parseInt( | ||
| await provider.request({ | ||
| method: "eth_chainId", | ||
| }), | ||
| 16 | ||
| ); | ||
|
|
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| const tokenParams = getChainParams(chainId)?.tokens ?? {}; | ||
| const tokenData = tokenParams[token]; | ||
|
|
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| if (tokenData && !isAssetWatched({ ...tokenData, chainId })) { | ||
| try { | ||
| await addToken(provider, tokenData); | ||
| storeWatchedAsset({ ...tokenData, chainId }); | ||
| } catch (err) { | ||
| console.warn(`Error when adding token ${token}:`, err); | ||
| } | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| async function addToken(provider, { address, symbol, decimals = 18, image }) { | ||
| /** | ||
| * FIXME: Apparently this call is broken and the promise will resolve even if the user | ||
| * rejects the request to watch the asset. | ||
| * | ||
| * @see { @link https://github.com/MetaMask/metamask-extension/issues/11377 } | ||
| */ | ||
| return await provider.request({ | ||
| method: "wallet_watchAsset", | ||
| params: { | ||
| type: "ERC20", | ||
| options: { | ||
| address, | ||
| symbol, | ||
| decimals, | ||
| image, | ||
| }, | ||
| }, | ||
| }); | ||
| } | ||
|
|
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| const getStorageKey = ({ chainId, symbol, address }) => `@@kleros/court/tokens/${symbol}/${chainId}/${address}`; | ||
|
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| function isAssetWatched({ chainId, symbol, address }) { | ||
| const key = getStorageKey({ chainId, symbol, address }); | ||
|
|
||
| try { | ||
| return JSON.parse(window.localStorage.getItem(key)) === true; | ||
| } catch (err) { | ||
| console.warn("Error in isAssetWatched", err); | ||
| return false; | ||
| } | ||
| } | ||
|
|
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| function storeWatchedAsset({ chainId, symbol, address }) { | ||
| const key = getStorageKey({ chainId, symbol, address }); | ||
|
|
||
| try { | ||
| window.localStorage.setItem(key, "true"); | ||
| } catch (err) { | ||
| console.warn("Error in isAssetWatched", err); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,11 @@ | ||
| import createSwitchToSideChain from "./create-switch-to-side-chain"; | ||
| import { getSideChainParamsFromMainChainId } from "./chain-params"; | ||
| import createWatchToken from "./create-watch-token"; | ||
| import { getSideChainParams } from "./chain-params"; | ||
|
|
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| export { SideChainApiProvider, useSideChainApi } from "./react-adapters"; | ||
| export * from "./chain-params"; | ||
|
|
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| export const requestSwitchToSideChain = createSwitchToSideChain({ | ||
| getCounterPartyChainParams: getSideChainParamsFromMainChainId, | ||
| export { default as requestSwitchNetwork } from "./request-switch-network"; | ||
|
|
||
| export const requestWatchToken = createWatchToken({ | ||
| getChainParams: getSideChainParams, | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| import Web3 from "web3"; | ||
| import { getSideChainParams, isSupportedSideChain } from "./chain-params"; | ||
|
|
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| const { toHex } = Web3.utils; | ||
|
|
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| export default async function requestSwitchNetwork(provider, destinationChainId) { | ||
| try { | ||
| return await switchNetwork(provider, { chainId: destinationChainId }); | ||
| } catch (err) { | ||
| // This error code indicates that the chain has not been added to MetaMask | ||
| // if it is not, then add it into the user MetaMask | ||
| if (err.code === 4902 && isSupportedSideChain(destinationChainId)) { | ||
| return await addNetwork(provider, getSideChainParams(destinationChainId)); | ||
| } | ||
|
|
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| throw err; | ||
| } | ||
| } | ||
|
|
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| async function addNetwork(provider, { chainId, chainName, nativeCurrency, rpcUrls, blockExplorerUrls }) { | ||
| return await provider.request({ | ||
| method: "wallet_addEthereumChain", | ||
| params: [ | ||
| { | ||
| chainId: toHex(chainId), | ||
| chainName: chainName, | ||
| nativeCurrency: nativeCurrency, | ||
| rpcUrls: rpcUrls, | ||
| blockExplorerUrls: blockExplorerUrls, | ||
| }, | ||
| ], | ||
| }); | ||
| } | ||
|
|
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| async function switchNetwork(provider, { chainId }) { | ||
| return await provider.request({ | ||
| method: "wallet_switchEthereumChain", | ||
| params: [ | ||
| { | ||
| chainId: toHex(chainId), | ||
| }, | ||
| ], | ||
| }); | ||
| } |
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