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web3 reducer (new types)

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This commit is contained in:
Szymon Lesisz 2018-09-12 13:24:07 +02:00
parent 6c387967f9
commit a913759ef4
1 changed files with 9 additions and 3 deletions
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12
src/reducers/Web3Reducer.js
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@ -3,7 +3,8 @@
import Web3 from 'web3'; import Web3 from 'web3';
import type { ContractFactory } from 'web3'; import type { Contract } from 'web3';
import * as STORAGE from 'actions/constants/localStorage';
import * as WEB3 from 'actions/constants/web3'; import * as WEB3 from 'actions/constants/web3';
import type { Action } from 'flowtype'; import type { Action } from 'flowtype';
@ -18,7 +19,7 @@ export type Web3Instance = {
chainId: number; chainId: number;
latestBlock: any; latestBlock: any;
gasPrice: string; gasPrice: string;
erc20: ContractFactory; erc20: Contract;
} }
export type State = Array<Web3Instance>; export type State = Array<Web3Instance>;
@ -26,8 +27,13 @@ export type State = Array<Web3Instance>;
const initialState: State = []; const initialState: State = [];
const createWeb3 = (state: State, instance: Web3Instance): State => { const createWeb3 = (state: State, instance: Web3Instance): State => {
const index: number = state.findIndex(w3 => w3.network === instance.network);
const newState: Array<Web3Instance> = [...state]; const newState: Array<Web3Instance> = [...state];
newState.push(instance); if (index >= 0) {
newState[index] = instance;
} else {
newState.push(instance);
}
return newState; return newState;
}; };