Future Finance Labs has tasked you, its star developer, to create a prototype for an exchange platform that the fintech scaleup wants to offer to professional traders. You’ll build an interactive command line program that will serve as the core accounting structure for this lightning-fast exchange platform. Using Rust, the company’s chosen programming language, you’ll implement the required data structures for storing accounts as well as the functions for transactions between accounts. To validate the account structure and functions, you’ll design and implement unit tests. When you’re done, you’ll be a master of Rust fundamentals, including its various syntax aspects and operations, and you’ll be ready to advance to more complex Rust data structures and code.

Future Finance Labs is creating an exchange platform for professional traders in hopes of expanding its customer base. As the fintech company’s star developer, your task is to build a matching engine that enables traders to find the best trading partners. Using Rust, the company’s chosen programming language, you’ll build the trading platform, the backbone of the engine, tying the accounting and trading components together. You’ll create the commands that enable interactions with the trading platform, parse input, and display the transaction log to the user. When you’re done, you’ll have built a fully functional matching engine, and you’ll have practical experience working with complex Rust data structures and iterators as well as applying mutable borrowing and ownership.

You’re the star developer for Future Finance Labs, a fintech scaleup whose partner consultants are so happy with the prototype of an exchange platform you’ve built that some of them have brought a trading firm on board. Your task is to extend your prototype to include a platform for trading futures that the firm would like to offer its clients. You’ll lay the web project foundation by moving the Rust code for the existing matching engine to a shared library, adding a skeleton project for the web server, and creating a Cargo workspace. You’ll set up a warp web service to interact with the trading platform, add JSON serialization to your types, and use asynchronous Rust programming to create handler functions. Then you’ll upgrade the existing command line interface to connect with your new service instead of the local variant via REST. When you’re finished, you’ll have built a complete Rust HTTP API that will be a blueprint for additional Rust web services, small and large.