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author | Fabio Berger <me@fabioberger.com> | 2017-11-22 04:03:08 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2017-11-22 04:03:08 +0800 |
commit | 3660ba28d73d70d08bf14c33ef680e5ef3ec7f3b (patch) | |
tree | f101656799da807489253e17bea7abfaea90b62d /packages/website/ts/subproviders/injected_web3_subprovider.ts | |
parent | 037f466e1f80f635b48f3235258402e2ce75fb7b (diff) | |
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Add website to mono repo, update packages to align with existing sub-packages, use new subscribeAsync 0x.js method
Diffstat (limited to 'packages/website/ts/subproviders/injected_web3_subprovider.ts')
-rw-r--r-- | packages/website/ts/subproviders/injected_web3_subprovider.ts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/packages/website/ts/subproviders/injected_web3_subprovider.ts b/packages/website/ts/subproviders/injected_web3_subprovider.ts new file mode 100644 index 000000000..b9e5af3ef --- /dev/null +++ b/packages/website/ts/subproviders/injected_web3_subprovider.ts @@ -0,0 +1,44 @@ +import * as _ from 'lodash'; +import Web3 = require('web3'); +import {constants} from 'ts/utils/constants'; + +/* + * This class implements the web3-provider-engine subprovider interface and forwards + * requests involving user accounts (getAccounts, sendTransaction, etc...) to the injected + * web3 instance in their browser. + * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js + */ +export class InjectedWeb3SubProvider { + private injectedWeb3: Web3; + constructor(injectedWeb3: Web3) { + this.injectedWeb3 = injectedWeb3; + } + public handleRequest(payload: any, next: () => void, end: (err: Error, result: any) => void) { + switch (payload.method) { + case 'web3_clientVersion': + this.injectedWeb3.version.getNode(end); + return; + case 'eth_accounts': + this.injectedWeb3.eth.getAccounts(end); + return; + + case 'eth_sendTransaction': + const [txParams] = payload.params; + this.injectedWeb3.eth.sendTransaction(txParams, end); + return; + + case 'eth_sign': + const [address, message] = payload.params; + this.injectedWeb3.eth.sign(address, message, end); + return; + + default: + next(); + return; + } + } + // Required to implement this method despite not needing it for this subprovider + public setEngine(engine: any) { + // noop + } +} |