What are the advantages and disadvantages of using Fluent API in development?

Advantages of Fluent API:

• Readability: the code looks like a chain of calls, bringing it closer to natural language.
• Convenience: allows writing compact and expressive constructs.
• Smooth construction of objects or queries: convenient for configurations, building database queries, constructing complex objects.

Disadvantages of Fluent API:

• Debugging: call chains can be more difficult to debug, especially if the call is long.
• Overcomplication: sometimes leads to excessive complexity if the API is too "fluid".
• Readability issues: if the chain is too long or complex, it becomes harder to perceive.

Example in C#:

var user = new UserBuilder()
    .SetName("Ivan")
    .SetAge(30)
    .SetEmail("ivan@example.com")
    .Build();

Here, Fluent API makes it convenient and clear to create a user object.