Authentication using API | Bondar Academy
Course: Playwright UI Testing with TypeScript
Module: Interacting with APIs
Instructor: Artem Bondar
Lesson Summary
In this lesson, we enhance our authentication flow by adding API authentication to speed up the login process. Here are the key points discussed: Overview of Changes We will utilize an API request to obtain a JWT token and update the storage state file. The goal is to avoid the UI flow for logging in when the token is already available. Implementation Steps Import the fs library to manage file operations. Create a condition to check if the storage state file exists using fs.existsSync . If the file exists, perform the following: Make an API request to retrieve the token. Read the existing storage state file with fs.readFileSync . Parse the file content to a JSON object. Update the token value in the object. Write the updated object back to the file using fs.writeFileSync . If the file does not exist, proceed with the regular UI flow to generate it. Performance Improvement Testing showed a significant reduction in login time: Standard login flow took 1.7 seconds . API authentication reduced the time to 800 milliseconds . This demonstrates that API authentication can greatly enhance performance, especially in larger applications where login times can be much longer. In conclusion, while API authentication speeds up the process, maintaining the UI flow for generating the storage state file is essential as a fallback.