# Getting Started with React

✋ CAUTION

This third-party integration guide might not be up-to-date with Strapi v4. Contributions (opens new window) are most welcome.

This integration guide is following the Quick Start Guide. We assume that you have fully completed its "Hands-on" path, and therefore can consume the API by browsing this url (opens new window).

If you haven't gone through the Quick Start Guide, the way you request a Strapi API with React (opens new window) remains the same except that you will not fetch the same content.

# Create a React app

Create a basic React application using create-react-app (opens new window).

npx create-react-app react-app

yarn create react-app react-app

# Use an HTTP client

Many HTTP clients are available but in this documentation we'll use Axios (opens new window) and Fetch (opens new window).

yarn add axios
 
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# GET Request your collection type

Execute a GET request on the restaurant collection type in order to fetch all your restaurants.

Be sure that you activated the find permission for the restaurant collection type

Example GET request with axios

import axios from 'axios';

axios.get('http://localhost:1337/api/restaurants').then(response => {
  console.log(response);
});
 
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Example response

[
  {
    "id": 1,
    "name": "Biscotte Restaurant",
    "description": "Welcome to Biscotte restaurant! Restaurant Biscotte offers a cuisine based on fresh, quality products, often local, organic when possible, and always produced by passionate producers.",
    "created_by": {
      "id": 1,
      "firstname": "Paul",
      "lastname": "Bocuse",
      "username": null
    },
    "updated_by": {
      "id": 1,
      "firstname": "Paul",
      "lastname": "Bocuse",
      "username": null
    },
    "created_at": "2020-07-31T11:37:16.964Z",
    "updated_at": "2020-07-31T11:37:16.975Z",
    "categories": [
      {
        "id": 1,
        "name": "French Food",
        "created_by": 1,
        "updated_by": 1,
        "created_at": "2020-07-31T11:36:23.164Z",
        "updated_at": "2020-07-31T11:36:23.172Z"
      }
    ]
  }
]
 
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# Example

./src/App.js

import axios from 'axios';
import { useEffect, useState } from 'react';

const App = () => {
  const [error, setError] = useState(null);
  const [restaurants, setRestaurants] = useState([]);

  useEffect(() => {
    axios
      .get('http://localhost:1337/api/restaurants')
      .then(({ data }) => setRestaurants(data))
      .catch((error) => setError(error))
  }, [])

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

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

export default App;
 
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# POST Request your collection type

Execute a POST request on the restaurant collection type in order to create a restaurant.

Be sure that you activated the create permission for the restaurant collection type and the find permission fot the category Collection type.

In this example a japanese category has been created which has the id: 3.

Example POST request with axios

import axios from 'axios';

axios
  .post('http://localhost:1337/api/restaurants', {
    name: 'Dolemon Sushi',
    description: 'Unmissable Japanese Sushi restaurant. The cheese and salmon makis are delicious',
    categories: [3],
  })
  .then(response => {
    console.log(response);
  });
 
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Example response

{
  "id": 2,
  "name": "Dolemon Sushi",
  "description": "Unmissable Japanese Sushi restaurant. The cheese and salmon makis are delicious",
  "created_by": null,
  "updated_by": null,
  "created_at": "2020-08-04T09:57:11.669Z",
  "updated_at": "2020-08-04T09:57:11.669Z",
  "categories": [
    {
      "id": 3,
      "name": "Japanese",
      "created_by": 1,
      "updated_by": 1,
      "created_at": "2020-07-31T11:36:23.164Z",
      "updated_at": "2020-07-31T11:36:23.172Z"
    }
  ]
}
 
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# Example

./src/App.js

import axios from 'axios';
import { useCallback, useEffect, useState } from 'react';

const Checkbox = ({ category, isChecked, onAddCategory, onRemoveCategory }) => (
  <div key={category.id}>
    <label htmlFor={category.id}>{category.name}</label>
    <input
      type="checkbox"
      checked={isChecked}
      onChange={isChecked ? onAddCategory : onRemoveCategory}
      name="categories"
      id={category.id}
    />
  </div>
);

const App = () => {
  const [allCategories, setAllCategories] = useState([]);
  const [error, setError] = useState(null);
  const [modifiedData, setModifiedData] = useState({ categories: [], description: '', name: '' });

  const handleInputChange = useCallback(({ target: { name, value } }) => {
    setModifiedData((prevData) => ({ ...prevData, [name]: value }));
  }, []);
  const handleSubmit = async (e) => {
    e.preventDefault();

    await axios
      .post("http://localhost:1337/api/restaurants", modifiedData)
      .then((response) => {
        console.log(response);
      })
      .catch((error) => {
        setError(error);
      });
  };

  useEffect(() => {
    axios
      .get('http://localhost:1337/api/categories')
      .then(({ data }) => setAllCategories(data))
      .catch((error) => setError(error))
  }, [])

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

  return (
    <div className="App">
      <form onSubmit={handleSubmit}>
        <h3>Restaurants</h3>
        <br />
        <label>
          Name:
          <input
            type="text"
            name="name"
            onChange={handleInputChange}
            value={modifiedData.name}
          />
        </label>
        <label>
          Description:
          <input
            type="text"
            name="description"
            onChange={handleInputChange}
            value={modifiedData.description}
          />
        </label>
        <div>
          <br />
          <b>Select categories</b>
          {allCategories.map((category) => (
            <Checkbox
              category={category}
              isChecked={modifiedData.categories.includes(category.id)}
              onAddCategory={() =>
                setModifiedData((prevData) => ({
                  ...prevData,
                  categories: [...prevData.categories, category.id],
                }))
              }
              onRemoveCategory={() =>
                setModifiedData((prevData) => ({
                  ...prevData,
                  categories: prevData.categories.filter(
                    (id) => id !== category.id
                  ),
                }))
              }
            />
          ))}
        </div>
        <br />
        <button type="submit">Submit</button>
      </form>
    </div>
  );
}

export default App;
 
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# PUT Request your collection type

Execute a PUT request on the restaurant collection type in order to update the category of a restaurant.

Be sure that you activated the put permission for the restaurant collection type.

We consider that the id of your restaurant is 2, and the id of your category is 2.

Example PUT request with axios

import axios from 'axios';

axios
  .put('http://localhost:1337/api/restaurants/2', {
    categories: [2],
  })
  .then(response => {
    console.log(response);
  });
 
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Example response

{
  "id": 2,
  "name": "Dolemon Sushi",
  "description": "Unmissable Japanese Sushi restaurant. The cheese and salmon makis are delicious",
  "created_by": null,
  "updated_by": null,
  "created_at": "2020-08-04T10:21:30.219Z",
  "updated_at": "2020-08-04T10:21:30.219Z",
  "categories": [
    {
      "id": 2,
      "name": "Brunch",
      "created_by": 1,
      "updated_by": 1,
      "created_at": "2020-08-04T10:24:26.901Z",
      "updated_at": "2020-08-04T10:24:26.911Z"
    }
  ]
}
 
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# Starter

React Blog starter (opens new window)

# Conclusion

Here is how to request your collection types in Strapi using React. When you create a collection type or a single type you will have a certain number of REST API endpoints available to interact with.

We just used the GET, POST and PUT methods here but you can get one entry, and delete an entry too. Learn more about API Endpoints.

← Error handling Vue.js →