We can use **OAuth2** to build that with **FastAPI**.

But let's save you the time of reading the full long specification just to find those little pieces of information you need.

Let's use the tools provided by **FastAPI** to handle security.

## How it looks

  // Initializes context for the local worker and no contexts will be created
  // for remote workers. Currently this only works for resetting context.
  // TODO(b/289445025): Consider removing this when we find a proper fix.
  virtual absl::Status InitializeLocalOnlyContext(const ServerDef& server_def,
                                                  int keep_alive_secs) = 0;

        }

        int maxUaLength = -1;
        Directive matchedDirective = null;
        for (final Map.Entry<Pattern, Directive> entry : directiveMap.entrySet()) {
            if (entry.getKey().matcher(target).find()) {
                final Directive directive = entry.getValue();
                final String ua = directive.getUserAgent();
                int uaLength = 0;
                if (!ALL_BOTS.equals(ua)) {

import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;

/**
 * Use a regular expression search to find and resolve expressions within the POM.
 *
 * TODO Consolidate this logic with the PluginParameterExpressionEvaluator, minus deprecations/bans.
 */
@Deprecated

  CONNECT_ERROR(0xa),

  ENHANCE_YOUR_CALM(0xb),

  INADEQUATE_SECURITY(0xc),

  HTTP_1_1_REQUIRED(0xd),
  ;

  companion object {
    fun fromHttp2(code: Int): ErrorCode? = values().find { it.httpCode == code }
  }

// Standard path where an app would find cross domain policy information.
const crossDomainXMLEntity = "/crossdomain.xml"

// A cross-domain policy file is an XML document that grants a web client, such as Adobe Flash Player

                boolean daemon = active.isDaemon();
                assertTrue(daemon, name + " is no daemon Thread.");
            }
        }

        assertTrue(seen, "Could not find ThreadGroup: " + DefaultArtifactResolver.DaemonThreadCreator.THREADGROUP_NAME);
    }

    @Test
    void testLookup() throws Exception {

     * <li>have .. parent directory references</li>
     * <li>point either at file or directory</li>
     * </ul>
     * If the given path points at a directory, the provided {@code ModelLocator} will be used
     * to find the POM file, else if no locator is provided, a file named 'pom.xml' needs to be
     * used by the requested model source.
     *
     * @param locator locator used to locate the pom file

          List<? extends E> list,
          int foundIndex) {
        // Of course, we have to use binary search to find the precise
        // breakpoint...
        int lower = 0;
        int upper = foundIndex;
        // Of course, we have to use binary search to find the precise breakpoint...
        // Everything between lower and upper inclusive compares at <= 0.
        while (lower < upper) {

```Python
from .dependencies import get_token_header
```

would mean:

* Starting in the same package that this module (the file `app/routers/items.py`) lives in (the directory `app/routers/`)...
* find the module `dependencies` (an imaginary file at `app/routers/dependencies.py`)...
* and from it, import the function `get_token_header`.

But that file doesn't exist, our dependencies are in a file at `app/dependencies.py`.