Firebase is an incredibly powerful platform that can help you build and manage applications quickly and easily. It provides a range of services, from authentication to hosting, and its integration with React makes it even more powerful. In this article, we&#x27;ll provide a complete cheatsheet for Firebase integration in React, including installation, authentication, Firestore integration, storage integration, and analytics integration.

![react firebase cheatsheet](https:&#x2F;&#x2F;devbrite.io&#x2F;media&#x2F;cover6.jpg)
## Installing Firebase into Your Project

The first step in integrating Firebase into your React project is to install the Firebase SDK. To do this, you&#x27;ll need to open a terminal window and run the following command:

&#96;&#96;&#96;
npm install firebase
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Once the installation is complete, you&#x27;ll need to import the Firebase library into your React component. To do this, you&#x27;ll need to add the following line to the top of your component:

&#96;&#96;&#96;
import firebase from &#x27;firebase&#x2F;app&#x27;;
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## Authentication with Firebase in React JS

Firebase provides an easy way to authenticate users with your React application. Here, we&#x27;ll provide examples for the three most common authentication methods: registration, login, and SMS verification.

### Registration with Firebase in React

To register a user with Firebase, you&#x27;ll need to use the &#96;createUserWithEmailAndPassword&#96; method. This method takes two parameters, the user&#x27;s email address and a password. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.auth().createUserWithEmailAndPassword(email, password)
  .then(function(user) {
    console.log(&#x27;User registered successfully!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error registering user:&#x27;, error);
  });
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### Login with Firebase in React

Once a user has been registered, you&#x27;ll need to provide them with a way to log in. To do this, you can use the &#96;signInWithEmailAndPassword&#96; method. This method takes two parameters, the user&#x27;s email address and a password. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.auth().signInWithEmailAndPassword(email, password)
  .then(function(user) {
    console.log(&#x27;User logged in successfully!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error logging in user:&#x27;, error);
  });
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### SMS Verification with Firebase in React

Firebase also provides the ability to send an SMS message to a user&#x27;s phone to verify their identity. To do this, you&#x27;ll need to use the &#96;sendSignInLinkToEmail&#96; method. This method takes two parameters, the user&#x27;s email address and a callback URL. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.auth().sendSignInLinkToEmail(email, callbackURL)
  .then(function() {
    console.log(&#x27;Verification link sent!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error sending verification link:&#x27;, error);
  });
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### Resetting Passwords with Firebase in React

Finally, Firebase provides the ability to reset a user&#x27;s password. To do this, you&#x27;ll need to use the &#96;sendPasswordResetEmail&#96; method. This method takes one parameter, the user&#x27;s email address. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.auth().sendPasswordResetEmail(email)
  .then(function() {
    console.log(&#x27;Password reset link sent!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error sending password reset link:&#x27;, error);
  });
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## Firestore Integration in ReactJS

Firestore is a powerful NoSQL cloud database that can be used to store and retrieve data for your React application. In this section, we&#x27;ll provide examples for writing data to Firestore, reading single data from Firestore, reading lists from Firestore, pagination with Firestore, sorting &amp; filtering with Firestore, and grouping &amp; aggregating with Firestore.

### Writing Data to Firestore in React

To write data to Firestore, you&#x27;ll need to use the &#96;set&#96; method. This method takes two parameters, the data you want to write and an optional callback function. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.firestore().collection(&#x27;users&#x27;).doc(userId).set({
  name: &#x27;John Doe&#x27;,
  age: 30
})
  .then(function() {
    console.log(&#x27;Data written successfully!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error writing data:&#x27;, error);
  });
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### Reading Single Data from Firestore in React

To read data from Firestore, you&#x27;ll need to use the &#96;get&#96; method. This method takes one parameter, the document ID of the data you want to read. Here&#x27;s an example of how you might use it:

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firebase.firestore().collection(&#x27;users&#x27;).doc(userId).get()
  .then(function(doc) {
    console.log(&#x27;Data retrieved successfully!&#x27;);
    console.log(doc.data());
  })
  .catch(function(error) {
    console.log(&#x27;Error retrieving data:&#x27;, error);
  });
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### Reading Lists from Firestore in React

To read a list of data from Firestore, you&#x27;ll need to use the &#96;get&#96; method. This method takes one parameter, a query object that specifies the data you want to retrieve. Here&#x27;s an example of how you might use it:

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firebase.firestore().collection(&#x27;users&#x27;).where(&#x27;age&#x27;, &#x27;&gt;&#x27;, 25).get()
  .then(function(querySnapshot) {
    console.log(&#x27;Data retrieved successfully!&#x27;);
    querySnapshot.forEach(function(doc) {
      console.log(doc.data());
    });
  })
  .catch(function(error) {
    console.log(&#x27;Error retrieving data:&#x27;, error);
  });
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### Pagination with Firestore in React

Firestore also provides the ability to paginate data, which can be useful for large datasets. To do this, you&#x27;ll need to use the &#96;startAfter&#96; and &#96;limit&#96; methods. This method takes two parameters, the number of documents you want to skip, and the maximum number of documents you want to retrieve. Here&#x27;s an example of how you might use it:

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firebase.firestore().collection(&#x27;users&#x27;).startAfter(10).limit(10).get()
  .then(function(querySnapshot) {
    console.log(&#x27;Data retrieved successfully!&#x27;);
    querySnapshot.forEach(function(doc) {
      console.log(doc.data());
    });
  })
  .catch(function(error) {
    console.log(&#x27;Error retrieving data:&#x27;, error);
  });
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### Sorting &amp; Filtering with Firestore in React

Firestore also provides the ability to sort and filter data. To do this, you&#x27;ll need to use the &#96;orderBy&#96; and &#96;where&#96; methods. This method takes two parameters, the field you want to sort by and the condition you want to filter by. Here&#x27;s an example of how you might use it:

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firebase.firestore().collection(&#x27;users&#x27;).orderBy(&#x27;name&#x27;).where(&#x27;age&#x27;, &#x27;&gt;&#x27;, 25).get()
  .then(function(querySnapshot) {
    console.log(&#x27;Data retrieved successfully!&#x27;);
    querySnapshot.forEach(function(doc) {
      console.log(doc.data());
    });
  })
  .catch(function(error) {
    console.log(&#x27;Error retrieving data:&#x27;, error);
  });
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### Grouping &amp; Aggregating with Firestore in React

Finally, Firestore provides the ability to group and aggregate data. To do this, you&#x27;ll need to use the &#96;groupBy&#96; and &#96;sum&#96; methods. This method takes two parameters, the field you want to group by and the field you want to sum. Here&#x27;s an example of how you might use it:

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firebase.firestore().collection(&#x27;users&#x27;).groupBy(&#x27;age&#x27;).sum(&#x27;score&#x27;).get()
  .then(function(querySnapshot) {
    console.log(&#x27;Data retrieved successfully!&#x27;);
    querySnapshot.forEach(function(doc) {
      console.log(doc.data());
    });
  })
  .catch(function(error) {
    console.log(&#x27;Error retrieving data:&#x27;, error);
  });
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## Firebase Storage Integration in React

Firebase Storage provides a way to store files such as images, videos, and documents. To use Firebase Storage, you&#x27;ll need to use the &#96;ref&#96; method. This method takes one parameter, the file path you want to store the file at. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.storage().ref(&#x27;users&#x2F;&#x27; + userId + &#x27;&#x2F;profileImage.jpg&#x27;).put(file)
  .then(function(snapshot) {
    console.log(&#x27;File uploaded successfully!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error uploading file:&#x27;, error);
  });
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## Analytics Integration in React

Firebase Analytics provides a way to track user behavior and gain insights into how your application is being used. To use Firebase Analytics, you&#x27;ll need to use the &#96;logEvent&#96; method. This method takes two parameters, the event name and an optional set of parameters. Here&#x27;s an example of how you might use it:

&#96;&#96;&#96;
firebase.analytics().logEvent(&#x27;user_signup&#x27;, {
  user_id: userId
})
  .then(function() {
    console.log(&#x27;Event logged successfully!&#x27;);
  })
  .catch(function(error) {
    console.log(&#x27;Error logging event:&#x27;, error);
  });
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## Conclusion

In this article, we&#x27;ve provided a complete cheatsheet for Firebase integration in React, including installation, authentication, Firestore integration, storage integration, and analytics integration. We&#x27;ve also provided concrete step by step code snippets, with documentation, to help you get started with Firebase in React.

Complete Firebase Cheatsheet in React JS

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