# Redux Boilerplate

Store.js

```javascript
//store.js
import { configureStore } from "@reduxjs/toolkit";
import underlyingReducer from "../features/underlyings/underlyingSlice";
// import { createLogger } from 'redux-logger';

// const logger = createLogger({
//   collapsed: true,
//   predicate: (getState, action) => action.type !== 'socket/priceDataAdded'
// });

export const store = configureStore({
  reducer: {
    underlying: underlyingReducer,
  },
  // middleware: (getDefaultMiddleware) => getDefaultMiddleware().concat(logger)
});
```

Slice.js

```javascript
import { createSlice, createAsyncThunk } from "@reduxjs/toolkit";

const apiUrlBase = "www.google.com";

export const fetchListings = createAsyncThunk(
  "fetchDerivativeListings",
  async (token) => {
    let finalData = {
      payload: [],
    };
    const response = await fetch(`${apiUrlBase}/derivatives/${token}`);
    let stockData = await response.json();
    return finalData;
  },
);

const initialState = {
  isLoading: false,
  data: {
    stockData: [],
  },
  isError: false,
};

const derivativesSlice = createSlice({
  name: "derivatives",
  initialState,
  reducers: {
    priceDataAdded: (state, action) => {
      state.priceData[action.payload.token] = action.payload.price;
    },
  },
  extraReducers: (builder) => {
    builder.addCase(fetchListings.pending, (state) => {
      state.isLoading = true;
      state.data.stockData = [];
    });
    builder.addCase(fetchListings.fulfilled, (state, action) => {
      state.isLoading = false;
      let { payload } = action;
      if (payload.success) {
        state.data.stockData = payload.payload;
        state.isError = false;
        state.data.message = "";
      } else {
        state.data.stockData = [];
        state.data.message = payload.err_msg;
        state.isError = true;
      }
    });
    builder.addCase(fetchListings.rejected, (state, action) => {
      console.log("Error ", action.payload);
    });
  },
});

export const { priceDataAdded } = derivativesSlice.actions;
export default derivativesSlice.reducer;
```

component.js

```javascript
import { useDispatch, useSelector } from "react-redux";

const state = useSelector((state) => state.underlying);
const socketData = useSelector((state) => state.socketData.priceData);
```


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