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Getting Started with React

This integration guide follows the Quick Start Guide and assumes you have you have fully completed the "Hands-on" path. You should be able to consume the API by browsing the URL http://localhost:1337/api/restaurants.

If you haven't gone through the Quick Start Guide, the way you request a Strapi API with React 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.

yarn create react-app react-app

Use an HTTP client​

Many HTTP clients are available but in this documentation there are examples using Axios and Fetch.

To install Axios:

yarn add axios

There is no installation required for Fetch.

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);
});
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"
      }
    ]
  }
]

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;

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);
  });
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"
    }
  ]
}

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;

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);
  });
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"
    }
  ]
}