C++ Standard Template Library in Practice - Project - Custom Writer Function

The video tutorial covers the continuation of a project involving Bitcoin data handling. It begins with setting up a custom writer function for the curl library to capture data into a program. The tutorial explains the creation and attachment of a data handler function, integration of a JSON API, and modification of the fetch function to return a JSON object. The main program is implemented with error handling and JSON parsing, leading to a formatted output displaying Bitcoin values. The video concludes with a summary and encouragement to modify the project.

What is the purpose of creating a custom writer function in the context of the project?

Explain how the data handler function interacts with the curl library.

What changes were made to the fetch Bitcoin data function, and what is its new return type?

Describe the process of fetching and parsing Bitcoin data in the main program.

What output formatting techniques were used to display the Bitcoin data in the console?