Introduction to Filestack JS

Filestack JS is a powerful API that simplifies the process of uploading, transforming, and delivering files for web applications. This comprehensive guide covers various Filestack JS APIs with practical code examples, ensuring you can integrate and utilize these features for your next project.

Initializing Filestack Client

  const client = filestack.init('YOUR_API_KEY');

File Upload

Filestack allows you to upload files directly from the browser.

  client.picker().open()
    .then(response => {
      console.log(response);
    })
    .catch(error => {
      console.error(error);
    });

File Transformation

Transform images using Filestack transformation tools.

  const transformOptions = {
      resize: {
        width: 200,
        height: 200
      },
      crop: {
        dim: [10, 10, 100, 100]
      },
      filter: {
        blur: 10
      }
  };
  const url = client.transform('FILE_HANDLE', transformOptions);

File Delivery

Retrieve uploaded files using the handle received post-upload.

  const fileLink = client.retrieve('FILE_HANDLE');
  console.log(fileLink);

File Security

Secure file operations with policy and signature.

  const security = client.security({
      policy: 'YOUR_POLICY',
      signature: 'YOUR_SIGNATURE'
  });
  client.upload(url, { security })
    .then(response => {
      console.log(response);
    });

Building a Simple File Upload App

Integrate the APIs to build an application:

  
  
  
    
    
    
  
  
    Upload File
    

  
  

In this app, the user can upload a file, and the uploaded file’s URL is displayed on the page. By utilizing Filestack JS APIs, you can implement robust file handling features in your application.

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