The inner workings of the application is very simple. It reads every line of the given file and extracts all the HTTP/HTTPS scheme URLs. It then makes HTTP/HTTPS header request to the URL and based on the status of the request it determines whether it is a bad URL or a good URL. The application currently supports color output in the Linux terminal.
- Running the tool with no arguments prints a help message to guide user how to use it
- The application can take a file name in current directory or a file path and processes the file to find the broken links
- It processes links with HTTP/HTTPS scheme
- Prints “GOOD”/“BAD” status based on HTTP response. See the response code at
- Prints “REDIRECT”, if an URL was redirected https://developer.mozilla.org/en-US/docs/Web/HTTP/Status
- Color output of the result
- Save the result in a file
How to Use the Application
Check out this repository https://github.com/badalsarkar/Blink.
The project was interesting and I learned several new things. I have used Java to write the application and Maven as the build tool.
Maven Build Tool
Maven is a popular build tool that automates the build process of application. I have used Maven for the first time in my project. The learning curve was steep. But after I leaned some basic commands, it was easy to compile and test the application.
Color Output in Terminal
Color output in terminal was new to me. I used an open source library for this purpose. The library supports Java +8, Linux, macOS, Windows 10. This was perfect for color outputting text across platforms. Here is the GitHub Repo and here is the Maven Repo.
Open Source Licensing
I have added MIT License to my project. I have yet to learn details about different licenses.
The application has lots of room to improve. Currently, I am making the HTTP request asynchronously using the HttpURLConnectionclass. But, I have found a new library for doing that in more efficient way. It is called async-http-client. See their github repository here https://github.com/AsyncHttpClient/async-http-client. Moreover, the project is open to any contribution.