### Kompakt

Es gibt für alles sensible **Defaultwerte**, mit optionaler Konfiguration überall. Alle Parameter können feinjustiert werden, damit sie tun, was Sie benötigen, und die API definieren, die Sie brauchen.

Aber standardmäßig **„funktioniert einfach alles“**.

### Validierung

* Validierung für die meisten (oder alle?) Python-**Datentypen**, hierzu gehören:

## Create the tables

In this case, we are creating the tables in the same Python file, but in production, you would probably want to create them with Alembic, integrated with migrations, etc.

Here, this section would run directly, right before starting your **FastAPI** application.

* Create an `engine`.
* Create all the tables from the `metadata` object.

```Python hl_lines="25-28"

      <id>kenney</id>
      <email>******@****.***</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Carlos Sanchez</name>
      <id>carlos</id>
      <email>carlos@codehaus.org</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Brett Porter</name>
      <id>brett</id>

      <id>kenney</id>
      <email>******@****.***</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Carlos Sanchez</name>
      <id>carlos</id>
      <email>carlos@codehaus.org</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Brett Porter</name>
      <id>brett</id>

      <id>kenney</id>
      <email>******@****.***</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Carlos Sanchez</name>
      <id>carlos</id>
      <email>carlos@codehaus.org</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Brett Porter</name>
      <id>brett</id>

      <id>kenney</id>
      <email>******@****.***</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Carlos Sanchez</name>
      <id>carlos</id>
      <email>carlos@codehaus.org</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Brett Porter</name>
      <id>brett</id>

      <id>kenney</id>
      <email>******@****.***</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Carlos Sanchez</name>
      <id>carlos</id>
      <email>carlos@codehaus.org</email>
      <roles>
        <role>Developer</role>
      </roles>
    </developer>
    <developer>
      <name>Brett Porter</name>
      <id>brett</id>

      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>-5</timezone>
    </developer>
    <developer>
      <id>carlos</id>
      <name>Carlos Sanchez</name>
      <email>carlos@apache.org</email>
      <organization>ASF</organization>
      <roles>
        <role>PMC Member</role>
      </roles>
      <timezone>+1</timezone>
    </developer>

 * The easiest way to pin a host is turn on pinning with a broken configuration and read the
 * expected configuration when the connection fails. Be sure to do this on a trusted network, and
 * without man-in-the-middle tools like [Charles][charles] or [Fiddler][fiddler].
 *
 * For example, to pin `https://publicobject.com`, start with a broken configuration:
 *
 * ```java
 * String hostname = "publicobject.com";

 with its <<<DefaultArtifact>>> implementation ({{{./xref/org/apache/maven/artifact/DefaultArtifact.html}source}}).

 The jar file is executable and provides a little tool to display how Maven parses and compares versions:

+----+
$ java -jar maven-artifact-*.jar 3.2.4-alpha-1 3.2.4-SNAPSHOT 3.2.4.0
Display parameters as parsed by Maven (in canonical form) and comparison result:
1. 3.2.4-alpha-1 == 3.2.4.alpha.1