你可以导入它并通过与 `FastAPI` 类相同的方式创建一个「实例」：

{* ../../docs_src/bigger_applications/app_an_py310/routers/users.py hl[1,3] title["app/routers/users.py"] *}

### 使用 `APIRouter` 的*路径操作* { #path-operations-with-apirouter }

然后你可以使用它来声明*路径操作*。

使用方式与 `FastAPI` 类相同：

{* ../../docs_src/bigger_applications/app_an_py310/routers/users.py hl[6,11,16] title["app/routers/users.py"] *}

你可以将 `APIRouter` 视为一个「迷你 `FastAPI`」类。

//
// UnreadByte returns an error if the most recent method called on the
// [Reader] was not a read operation. Notably, [Reader.Peek], [Reader.Discard], and [Reader.WriteTo] are not
// considered read operations.
func (b *Reader) UnreadByte() error {
	if b.lastByte < 0 || b.r == 0 && b.w > 0 {
		return ErrInvalidUnreadByte
	}
	// b.r > 0 || b.w == 0
	if b.r > 0 {
		b.r--
	} else {
		// b.r == 0 && b.w == 0

					delBuckets.Store(volName, vi)
				}
			}
			return nil
		}, index)
	}
	return reduceReadQuorumErrs(ctx, g.Wait(), bucketMetadataOpIgnoredErrs, readQuorum)
}

// --- Object Operations ---

// GetObjectNInfo - returns object info and locked object ReadCloser

// instructions for each rule, to guarantee we cover the same space.

#include "../../../../../runtime/textflag.h"

TEXT	foo(SB), DUPOK|NOSPLIT, $-8

// arithmetic operations
	ADDW	$1, R2, R3
	ADDW	R1, R2, R3
	ADDW	R1, ZR, R3
	ADD	$1, R2, R3
	ADD	R1, R2, R3
	ADD	R1, ZR, R3
	ADD	$1, R2, R3
	ADDW	$1, R2
	ADDW	R1, R2
	ADD	$1, R2
	ADD	R1, R2
	ADD	R1>>11, R2

import jakarta.servlet.ServletContext;
import jakarta.servlet.SessionTrackingMode;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;

/**
 * Helper class for handling view-related operations in the Fess search system.
 * This class provides utilities for content rendering, URL processing, highlighting,
 * caching, pagination, and user interface functionality.
 *
 */
public class ViewHelper {

   * get() call. As measurements of time are prone to flakiness, it tries to assert based on ranges
   * derived from observing how much time actually passed for various operations.
   */
  @SuppressWarnings("ThreadPriorityCheck")
  @AndroidIncompatible // Thread.suspend
  public void testToString_delayedTimeout() throws Exception {

            throw new SmbException(url.toString() + " directory must end with '/'");
        }
        if (getType() != TYPE_SERVER) {
            throw new SmbException("The requested list operations is invalid: " + url.toString());
        }

        map = new HashMap();

        if (dfs.isTrustedDomain(getServer(), auth)) {
            /* The server name is actually the name of a trusted

    mod.put(1, "one");
    mod.put(2, "two");
    mod.put(3, "three");

    BiMap<Number, String> unmod = Maps.<Number, String>unmodifiableBiMap(mod);

    /* No aliasing on inverse operations. */
    assertThat(unmod.inverse()).isSameInstanceAs(unmod.inverse());
    assertThat(unmod.inverse().inverse()).isSameInstanceAs(unmod);

    /* Unmodifiable is a view. */
    mod.put(4, "four");

	CSUBW	X10, X5					// ERROR "expected integer prime register in rd"
	CNOP	X10					// ERROR "expected no register in rs2"
	CEBREAK	X10					// ERROR "expected no register in rs2"

	//
	// "V" Standard Extension for Vector Operations, Version 1.0
	//
	VSETVLI		$32, E16, M1, TU, MU, X12	// ERROR "must be in range [0, 31] (5 bits)"
	VSETVLI		$-1, E32, M2, TA, MA, X12	// ERROR "must be in range [0, 31] (5 bits)"

@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

`requests.get(...)`와 `@app.get(...)`의 유사성을 확인해 보세요.

/// check | **FastAPI**에 영감을 준 것

* 단순하고 직관적인 API를 갖기.
* HTTP method 이름(operations)을 직접, 직관적이고 명확한 방식으로 사용하기.
* 합리적인 기본값을 제공하되, 강력한 커스터마이징을 가능하게 하기.

///

### [Swagger](https://swagger.io/) / [OpenAPI](https://github.com/OAI/OpenAPI-Specification/) { #swagger-openapi }