Once in a while, taking an hour or so to read about libraries can be very useful to improve one’s developer profile, discover helpful libraries, and also go through difficult challenges in which gold code is found within a good application. In this case, I’ve chosen Instagram because it is part of the FAANG tech giants managing to create these big apps that are more than just a tool or social media platform.
In this article, I will be giving a detailed list sorted by license of all the open source libraries that I consider useful for multiple project scenarios.
Use case: It can be useful for almost any application. It can help to track production errors, but you may want to check the costs because a back end has to be implemented alongside the library to check reports.
Use case: To store Java objects to the file system, to store persistent data, or to transfer data through a protocol to external devices or services.
Use case: Reduce errors when doing memory-intensive workloads and also improve the performance of an application.
Use case: User interfaces that validate phone number formatting related to a specific country.
Use Case: It can be used on any mathematical operations within a business logic or complex graphics manipulation.
Description: According to its documentation, it provides “Android device shake detection.”
Use case: It can be used in game development, deletion, and features like Spotify Driver mode when you want to enable a specific mode without too much work from the user.
Use case: Suited for large applications. Remote sync and save organized data within local storage with easy access using SQL syntax.
Use case: Game development, event communication apps, ticket validation apps, authentication with third-party apps, and almost any supermarket/store that wants to automate a process with their items instead of using traditional barcode scanners.
Use case: Since this is a Python library, I supposed that what Instagram uses is a port to Java or some kind of binding to Python. Use cases can be as simple as securing a password with one-way encryption, communicating securely to a server, and secure E2E encryption with an algorithm like RSA.
Use case: Sending and receiving data to an API can be one of its main use cases.
Use case: Creating reports on unit testing and rich assertions to validate code.
Instagram uses many more libraries. You can check for yourself by going to Instagram App → Settings → About → Open source libraries, but consider the ones listed useful for many application scenarios.
I hope this review is one of many deep dives into interesting applications to see what big tech companies use as daily open source drivers. We can also determine whether a “mortal” application could use some of their core libraries and show implementations or examples of how to use them.
Thanks for reading!
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