frontend/src/sagas.js


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import { router } from 'redux-saga-router'
import { call, fork } from 'redux-saga/effects'

import { makeSagaRoutes } from './routes'
import { createWsConnection } from './utils/websocket'
import errorHandlingSaga from './sagas/errors'

export default function *rootSaga(history) {
  let wsConnection
  try {
    wsConnection = yield call(createWsConnection)
  } catch (error) {
    console.error('Could not connect to socket')
    return
  }
  yield fork(errorHandlingSaga, wsConnection)
  yield* router(history, makeSagaRoutes(wsConnection))
}