Practical GraphQL - Become a GraphQL Ninja - File (Image) Uloading using the Frontend (React, Cloudinary, GraphQL)

The video tutorial explains how to implement file upload functionality in a React application. It covers setting up a file input, creating state and methods to handle file selection and upload, constructing form data, and using the Fetch API to send the file to a server. The tutorial also includes testing the upload process and verifying the results. Future steps involve creating a mutation to display the uploaded file in the interface.

What is the purpose of adding an input type of file in the React application?

• To create a new file

• To display a list of files

• To allow users to select a file for upload

• To delete an existing file

Which method is used to handle the file selection event in the React component?

• handleFileInput

• handleSelectedFile

• handleFileChange

• handleFileUpload

What is the initial value of the selected file in the component's state?

• An empty string

• Null

• An empty array

• Undefined

What is the purpose of using FormData in the file upload process?

• To encrypt the file

• To validate the file type

• To append and send file data to the server

• To store file metadata

Which API is used to send the file data to the server?

• Axios

• jQuery AJAX

• XMLHttpRequest

• Fetch

How can you verify that the file has been successfully uploaded?

• By checking the file size

• By navigating to the uploads folder

• By refreshing the page

• By checking the console for errors

What is the next step after implementing the file upload functionality?

• Creating a new React component

• Displaying the uploaded file in the interface

• Deleting the uploaded file

• Logging out of the application