89 lines
2.9 KiB
TypeScript
89 lines
2.9 KiB
TypeScript
import { showNotification } from 'actions/notifications';
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import {
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loadBityRatesSucceededSwap,
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loadShapeshiftRatesSucceededSwap,
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changeSwapProvider,
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ChangeProviderSwapAcion
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} from 'actions/swap';
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import { TypeKeys } from 'actions/swap/constants';
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import { getAllRates } from 'api/bity';
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import { delay, SagaIterator } from 'redux-saga';
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import { call, select, cancel, fork, put, take, takeLatest, race } from 'redux-saga/effects';
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import shapeshift from 'api/shapeshift';
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import { getSwap } from 'sagas/swap/orders';
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const POLLING_CYCLE = 30000;
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export const SHAPESHIFT_TIMEOUT = 10000;
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export function* loadBityRates(): SagaIterator {
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while (true) {
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try {
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const data = yield call(getAllRates);
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yield put(loadBityRatesSucceededSwap(data));
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} catch (error) {
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yield put(showNotification('danger', error.message));
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}
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yield call(delay, POLLING_CYCLE);
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}
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}
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export function* loadShapeshiftRates(): SagaIterator {
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while (true) {
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try {
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// Race b/w api call and timeout
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// getShapeShiftRates should be an api call that accepts a whitelisted arr of symbols
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const { tokens } = yield race({
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tokens: call(shapeshift.getAllRates),
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timeout: call(delay, SHAPESHIFT_TIMEOUT)
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});
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// If tokens exist, put it into the redux state, otherwise switch to bity.
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if (tokens) {
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yield put(loadShapeshiftRatesSucceededSwap(tokens));
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} else {
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yield put(
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showNotification('danger', 'Error loading ShapeShift tokens - reverting to Bity')
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);
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}
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} catch (error) {
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yield put(showNotification('danger', `Error loading ShapeShift tokens - ${error}`));
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}
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yield call(delay, POLLING_CYCLE);
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}
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}
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export function* swapProvider(action: ChangeProviderSwapAcion): SagaIterator {
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const swap = yield select(getSwap);
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if (swap.provider !== action.payload) {
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yield put(changeSwapProvider(action.payload));
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}
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}
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// Fork our recurring API call, watch for the need to cancel.
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export function* handleBityRates(): SagaIterator {
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const loadBityRatesTask = yield fork(loadBityRates);
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yield take(TypeKeys.SWAP_STOP_LOAD_BITY_RATES);
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yield cancel(loadBityRatesTask);
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}
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// Watch for latest SWAP_LOAD_BITY_RATES_REQUESTED action.
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export function* getBityRatesSaga(): SagaIterator {
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yield takeLatest(TypeKeys.SWAP_LOAD_BITY_RATES_REQUESTED, handleBityRates);
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}
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// Fork our API call
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export function* handleShapeShiftRates(): SagaIterator {
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const loadShapeShiftRatesTask = yield fork(loadShapeshiftRates);
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yield take(TypeKeys.SWAP_STOP_LOAD_SHAPESHIFT_RATES);
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yield cancel(loadShapeShiftRatesTask);
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}
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// Watch for SWAP_LOAD_SHAPESHIFT_RATES_REQUESTED action.
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export function* getShapeShiftRatesSaga(): SagaIterator {
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yield takeLatest(TypeKeys.SWAP_LOAD_SHAPESHIFT_RATES_REQUESTED, handleShapeShiftRates);
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}
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// Watch for provider swaps
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export function* swapProviderSaga(): SagaIterator {
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yield takeLatest(TypeKeys.SWAP_CHANGE_PROVIDER, swapProvider);
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}
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