import okhttp3.Request
import okhttp3.RequestBody.Companion.asRequestBody
import okio.Path.Companion.toPath
import okio.buffer
import okio.fakefilesystem.FakeFileSystem

class PostPath {
  private val client = OkHttpClient()
  private val fileSystem = FakeFileSystem()
  val path = "test.json".toPath()

  fun run() {
    fileSystem.write(path) {
      writeUtf8("{}")
    }

    val request =
      Request

### Proxy Forwarded Header'ları Nasıl Çalışır { #how-proxy-forwarded-headers-work }

**Proxy**'nin, client ile **application server** arasında forwarded header'ları nasıl eklediğini gösteren görsel bir temsil:

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

/* jcifs smb client library in Java
 * Copyright (C) 2002  "Michael B. Allen" <jcifs at samba dot org>
 *                   "Eric Glass" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *

 */
package okhttp3.recipes.kt

import java.io.IOException
import okhttp3.CertificatePinner
import okhttp3.OkHttpClient
import okhttp3.Request

class CertificatePinning {
  private val client =
    OkHttpClient
      .Builder()
      .certificatePinner(
        CertificatePinner
          .Builder()
          .add("publicobject.com", "sha256/Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=")

def test_normal_init_oauth_still_works():
    html = get_swagger_ui_html(
        openapi_url="/openapi.json",
        title="Test",
        init_oauth={"clientId": "my-client", "appName": "My App"},
    )
    body = html.body.decode()
    assert '"clientId": "my-client"' in body
    assert '"appName": "My App"' in body

Voici une représentation visuelle de la façon dont le **proxy** ajoute des en‑têtes transférés entre le client et le **serveur d'application** :

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

@router.get("/users/{id}")
def read_user(segment: str, id: str):
    return {"segment": segment, "id": id}


app.include_router(router, prefix="/{segment}")


client = TestClient(app)


def test_get():
    response = client.get("/seg/users/foo")
    assert response.status_code == 200, response.text

* Convertir automatiquement depuis et vers JSON.
* Tout documenter avec OpenAPI, qui peut être utilisé par :
    * des systèmes de documentation interactive.
    * des systèmes de génération automatique de clients, pour de nombreux langages.
* Fournir directement 2 interfaces web de documentation interactive.

---

Nous n'avons fait qu'effleurer la surface, mais vous avez déjà une idée de la façon dont tout fonctionne.

async def a():
    pass  # pragma: no cover


@app.get("/b", responses={500: {"description": "Error", "model": Error}})
async def b():
    pass  # pragma: no cover


client = TestClient(app)


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",

        .addTrustedCertificate(localhostCertificate.certificate())
        .build();
    OkHttpClient client = new OkHttpClient.Builder()
        .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager())
        .build();

    Call call = client.newCall(new Request.Builder()
        .url(server.url("/"))
        .build());
    Response response = call.execute();