Creational

Builder

Separates complex object construction from its representation.

Complex object creationFluent APIsTest data builders

Understanding Builder

The Builder pattern separates the construction of a complex object from its representation. It's perfect for creating objects with many optional parameters, providing a fluent API that makes code readable and maintainable.

How It Works

NewBuilder()
→
.Host("api")
→
.Port(443)
→
.Build()
1

Start Building

Initialize the builder with default values.

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Basic Implementation

A fluent server configuration builder:

main.go
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Real-World Example: HTTP Request Builder

Building HTTP requests with a clean, chainable API:

main.go
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