50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
import { SagaIterator } from 'redux-saga';
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import { put, all, fork, take, takeLatest, select, call } from 'redux-saga/effects';
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import { setWeb3, setAccounts, setContract } from './actions';
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import { selectWeb3 } from './selectors';
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import { safeEnable } from 'utils/web3';
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import types from './types';
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/* tslint:disable no-var-requires --- TODO: find a better way to import contract */
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const CrowdFundFactory = require('lib/contracts/CrowdFundFactory.json');
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export function* bootstrapWeb3(): SagaIterator {
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// Don't attempt to bootstrap web3 on SSR
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if (process.env.SERVER_SIDE_RENDER) {
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return;
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}
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yield put<any>(setWeb3());
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yield take(types.WEB3_FULFILLED);
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yield all([put<any>(setAccounts()), put<any>(setContract(CrowdFundFactory))]);
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}
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export function* handleEnableWeb3(): SagaIterator {
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const web3 = yield select(selectWeb3);
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try {
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if (!web3) {
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const web3Action = yield take([types.WEB3_FULFILLED, types.WEB3_REJECTED]);
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if (web3Action.type === types.WEB3_REJECTED) {
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throw new Error('No web3 instance available');
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}
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}
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yield call(safeEnable);
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yield put<any>(setAccounts());
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yield put({ type: types.ENABLE_WEB3_FULFILLED });
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} catch (err) {
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yield put({
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type: types.ENABLE_WEB3_REJECTED,
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payload: err.message || err.toString(),
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error: true,
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});
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}
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}
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export default function* authSaga(): SagaIterator {
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yield all([fork(bootstrapWeb3)]);
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yield takeLatest(types.ENABLE_WEB3_PENDING, handleEnableWeb3);
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}
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