<name>Maven Wagon</name>
  <version>1.0-beta-2</version>
  <description>Tools to manage artifacts and deployment</description>
  <url>http://maven.apache.org/wagon</url>

  <issueManagement>
    <system>jira</system>
    <url>http://jira.codehaus.org/browse/WAGON</url>
  </issueManagement>
  <inceptionYear>2003</inceptionYear>
  <mailingLists>
    <mailingList>
      <name>Maven Wagon User List</name>

  <name>Maven Wagon</name>
  <version>1.0-beta-2</version>
  <description>Tools to manage artifacts and deployment</description>
  <url>http://maven.apache.org/wagon</url>

  <issueManagement>
    <system>jira</system>
    <url>http://jira.codehaus.org/browse/WAGON</url>
  </issueManagement>
  <inceptionYear>2003</inceptionYear>
  <mailingLists>
    <mailingList>
      <name>Maven Wagon User List</name>

If a conditional GET was successful, responses from the network and cache are merged as directed by the spec.

## Follow-up Requests

When your requested URL has moved, the webserver will return a response code like `302` to indicate the document’s new URL. OkHttp will follow the redirect to retrieve a final response.

  </description>
  <url>http://maven.apache.org/</url>
  <issueManagement>
    <system>jira</system>
    <url>http://jira.codehaus.org/browse/MPA</url>
  </issueManagement>
  <ciManagement>
    <system>continuum</system>
    <url>http://maven.zones.apache.org/continuum</url>
    <notifiers>
      <notifier>
        <type>mail</type>
        <configuration>

  <artifactId>maven-test-a</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <repositories>
    <repository>
      <id>central</id>
      <name>Fake Maven Central Repository</name>
      <url>file://dummy</url>
    </repository>
  </repositories>

   * check callers should also confirm that this cookie has not expired.
   */
  fun matches(url: HttpUrl): Boolean {
    val domainMatch =
      if (hostOnly) {
        url.host == domain
      } else {
        domainMatch(url.host, domain)
      }
    if (!domainMatch) return false

    if (!pathMatch(url, path)) return false

        !connection.noNewExchanges -> null

        !connection.route().address.url.canReuseConnectionFor(address.url) -> null

        else -> connection.route()
      }
    }
  }

  override fun sameHostAndPort(url: HttpUrl): Boolean {
    val routeUrl = address.url
    return url.port == routeUrl.port && url.host == routeUrl.host
  }

It will have a *path operation* that will receive an `Invoice` body, and a query parameter `callback_url` that will contain the URL for the callback.

This part is pretty normal, most of the code is probably already familiar to you:

```Python hl_lines="9-13  36-53"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip

supports both synchronous blocking calls and async calls with callbacks.


Get a URL
---------

This program downloads a URL and prints its contents as a string. [Full source][get_example].

```java
OkHttpClient client = new OkHttpClient();

String run(String url) throws IOException {
  Request request = new Request.Builder()
      .url(url)
      .build();

  try (Response response = client.newCall(request).execute()) {

```

La partie appelée requête (ou **query**) dans une URL est l'ensemble des paires clés-valeurs placées après le `?` , séparées par des `&`.

Par exemple, dans l'URL :

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

...les paramètres de requête sont :

* `skip` : avec une valeur de`0`
* `limit` : avec une valeur de `10`

Faisant partie de l'URL, ces valeurs sont des chaînes de caractères (`str`).