## 常规 **FastAPI** 应用 { #the-normal-fastapi-app }

添加回调前，首先看下常规 API 应用是什么样子。

常规 API 应用包含接收 `Invoice` 请求体的*路径操作*，还有包含回调 URL 的查询参数 `callback_url`。

这部分代码很常规，您对绝大多数代码应该都比较熟悉了：

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[7:11,34:51] *}

/// tip | 提示

`callback_url` 查询参数使用 Pydantic 的 [Url](https://docs.pydantic.dev/latest/api/networks/) 类型。

///

Let's say you have a *path operation* with a path `/files/{file_path}`.

But you need `file_path` itself to contain a *path*, like `home/johndoe/myfile.txt`.

So, the URL for that file would be something like: `/files/home/johndoe/myfile.txt`.

### OpenAPI support { #openapi-support }

  }

  override fun hasNext(failedConnection: RealConnection?): Boolean =
    deferredPlans.isNotEmpty() || nextPlanIndex < plans.size || autoGeneratePlans

  override fun sameHostAndPort(url: HttpUrl): Boolean = url.host == address.url.host && url.port == address.url.port

  override fun close() {
    factory.close()
  }

  inner class FakePlan(
    val id: Int,
  ) : RoutePlanner.Plan {
    var planningThrowable: Throwable? = null

            version("errorProne", "stub") // not used in this project
        }
    }
}

pluginManagement {
    repositories {
        maven {
            url = uri("https://repo.gradle.org/gradle/enterprise-libs-release-candidates")
            content {
                val rcAndMilestonesPattern = "\\d{1,2}?\\.\\d{1,2}?(\\.\\d{1,2}?)?-((rc-\\d{1,2}?)|(milestone-\\d{1,2}?))"

  fun setUp() {
    OkHttpDebugLogging.enable("org.bouncycastle.jsse")
    platform.assumeBouncyCastle()
  }

  @Test
  fun testMozilla() {
    assumeNetwork()

    val request = Request.Builder().url("https://mozilla.org/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

import okhttp3.Response;

public final class SynchronousGet {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

    try (Response response = client.newCall(request).execute()) {
      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

	peerRESTDepID           = "depID"
	peerRESTStartRebalance  = "start-rebalance"
	peerRESTMetrics         = "metrics"
	peerRESTDryRun          = "dry-run"
	peerRESTUploadID        = "up-id"

	peerRESTURL         = "url"
	peerRESTSha256Sum   = "sha256sum"
	peerRESTReleaseInfo = "releaseinfo"
	peerRESTExecAt      = "exec-at"

	peerRESTListenBucket = "bucket"
	peerRESTListenPrefix = "prefix"
	peerRESTListenSuffix = "suffix"

						PrincipalID: "test-user",
					},
				}, nil
			}

			body := []byte{}
			req := httptest.NewRequest("GET", "/objectlambda/"+bucketName+"/"+objectName+"?lambdaArn="+url.QueryEscape(lambdaARN), bytes.NewReader(body))
			req.Form = url.Values{"lambdaArn": []string{lambdaARN}}
			req.Header.Set("Host", "localhost")
			req.Header.Set("X-Amz-Date", time.Now().UTC().Format("20060102T150405Z"))
			sum := sha256.Sum256(body)

        buildFile = new File(testProjectDir.root, 'cloned/build.gradle')
        settingsFile = new File(testProjectDir.root, 'cloned/settings.gradle')
    }

    File setupGitRemote() {
        URL fakeRemote = getClass().getResource("fake_git/remote")
        File workingRemoteGit = new File(remoteRepoDirs.root, 'remote')
        FileUtils.copyDirectory(new File(fakeRemote.toURI()), workingRemoteGit)

            PERFORMANCE_DB_USERNAME, gha/gradle/_all/PERFORMANCE_DB_USERNAME
            PERFORMANCE_DB_PASSWORD_TCAGENT, gha/gradle/_all/PERFORMANCE_DB_PASSWORD
      
      - name: Extract database host from URL
        run: |
          # jdbc:mysql://gradle-bt-performance.xyz.eu-central-1.rds.amazonaws.com:3306 -> gradle-bt-performance.xyz.eu-central-1.rds.amazonaws.com