CODEWITHSUNDEEP
reactjsstrapi
Yamin Ooh
Yamin Ooh

Reputation: 45

Mapping through Strapi data doesnt work in React

I was following the documentation on strapi and react but i get this console error:

this.state.restaurants.map is not a function

If i console log the data it gives me this response

But trying to display them on frontend its not working

This is with the Fetch method

import React from "react";

class App extends React.Component {
  state = {
    restaurants: [],
    error: null,
  };

  componentDidMount = async () => {
    const parseJSON = (resp) => (resp.json ? resp.json() : resp);

    const checkStatus = (resp) => {
      if (resp.status >= 200 && resp.status < 300) {
        return resp;
      }
      return parseJSON(resp).then((resp) => {
        throw resp;
      });
    };
    const headers = {
      "Content-Type": "application/json",
    };

    try {
      const restaurants = await fetch("http://localhost:1337/api/restaurants", {
        method: "GET",
        headers: headers,
      })
        .then(checkStatus)
        .then(parseJSON);
      this.setState({ restaurants });
    } catch (error) {
      this.setState({ error });
    }
  };

  render() {
    const { error, restaurant } = this.state;
    if (error) {
      return <div>An error occured: {error.message}</div>;
    }

    return (
      <div className="App">
        <ul>
          {this.state.restaurants.map((restaurant) => (
            <li key={restaurant.id}>{restaurant.name}</li>
          ))}
        </ul>
      </div>
    );
  }
}

export default App;

This is Axios method

import React from 'react';
import axios from 'axios';

class App extends React.Component {
  // State of your application
  state = {
    restaurants: [],
    error: null,
  };

  // Fetch your restaurants immediately after the component is mounted
  componentDidMount = async () => {
    try {
      const response = await axios.get('http://localhost:1337/api/restaurants');
      this.setState({ restaurants: response.data });
    } catch (error) {
      this.setState({ error });
    }
  };

  render() {
    const { error, restaurant } = this.state;

    // Print errors if any
    if (error) {
      return <div>An error occured: {error.message}</div>;
    }

    return (
      <div className="App">
        <ul>
          {this.state.restaurants.map(restaurant => (
            <li key={restaurant.id}>{restaurant.name}</li>
          ))}
        </ul>
      </div>
    );
  }
}

export default App;

My strapi roles on Public have the checked mark to find and findOne the same as on this documentation.

Console log of the response enter image description here

Upvotes: 0

Views: 721

Answers (1)

Fiodorov Andrei
Fiodorov Andrei

Reputation: 2028

You get restaurants from response.data but the response have an object with data: { data: ... }.

Solution:

this.setState({ restaurants: response.data.data });

Upvotes: 1

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