# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Project Overview

curl4j is a simple cURL-like Java HTTP client library providing a fluent API for building HTTP requests. It's designed to be minimal with only Apache Commons IO as a dependency.

## Directory Structure

```
curl4j/
├── src/
│   ├── main/java/org/codelibs/curl/

    given-names: Lukasz
  - family-names: Kudlur
    given-names: Manjunath
  - family-names: Levenberg
    given-names: Josh
  - family-names: Mané
    given-names: Dan
  - family-names: Schuster
    given-names: Mike
  - family-names: Monga
    given-names: Rajat
  - family-names: Moore
    given-names: Sherry
  - family-names: Murray
    given-names: Derek
  - family-names: Olah
    given-names: Chris

- **Type safety** - Extensive use of generics and null-safe operations throughout the API
- **Resource management** - Proper handling of resources with utilities like `CloseableUtil` and `DisposableUtil`

### Key Architectural Patterns
- **Factory Pattern** - `BeanDescFactory` for creating bean descriptors, `ParameterizedClassDescFactory` for generic type handling

     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**
     * Sets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.

**FastAPI** tamamen bu type hints üzerine kuruludur; bunlar ona birçok avantaj ve fayda sağlar.

Ancak hiç **FastAPI** kullanmasanız bile, bunlar hakkında biraz öğrenmeniz size fayda sağlayacaktır.

/// note | Not

Eğer bir Python uzmanıysanız ve type hints hakkında her şeyi zaten biliyorsanız, sonraki bölüme geçin.

///

def main(user_id: str):
    return user_id


# A Pydantic model
class User(BaseModel):
    id: int
    name: str
    joined: date
```

That can then be used like:

```Python
my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

                        .filter(((Predicate<Class<?>>) this::implementsNamingConvention).or(this::seemsLikeATest))
                ),
                checkNoneExists(
                    "Seem like test classes but don't match naming convention",
                    classes.values()
                        .stream()
                        .filter(isStaticClass.negate())
                        .filter(isPublicClass)

    validations:
      required: true

  - type: markdown
    attributes:
      value: >
        Did you *actually* encounter the need for this enhancement in a real-world scenario, or does
        it just seem like a sensible behavior for the feature to have?


        Before we make significant changes to existing features in Guava, we really want to be sure

 * dashboard to create a client ID and secret for this application.
 *
 * <p>You must configure your Slack API OAuth and Permissions page with a localhost URL like {@code
 * http://localhost:53203/oauth/}, passing the same port to this class’ constructor.
 */
public final class SlackApi {
  private final HttpUrl baseUrl = HttpUrl.get("https://slack.com/api/");

Then one of your users could install it and run it locally.

Then they could open a malicious website, e.g. something like

```
https://evilhackers.example.com
```

And that malicious website sends requests using `fetch()` with a `Blob` body to the local API at

```
http://localhost:8000/v1/agents/multivac
```