* **Sin comprometerse** con bases de datos, frontend, etc. Pero permitiendo integración fácil con todos ellos.

### "Plug-ins" ilimitados

O dicho de otra manera, no hay necesidad para "plug-ins". Importa y usa el código que necesites.

The `security_scopes` object (of class `SecurityScopes`) also provides a `scope_str` attribute with a single string, containing those scopes separated by spaces (we are going to use it).

We create an `HTTPException` that we can re-use (`raise`) later at several points.

  private var nextQueueName = 10000
  private var coordinatorWaiting = false
  private var coordinatorWakeUpAt = 0L

  /**
   * When we need a new thread to run tasks, we call [Backend.execute]. A few microseconds later we
   * expect a newly-started thread to call [Runnable.run]. We shouldn't request new threads until
   * the already-requested ones are in service, otherwise we might create more threads than we need.
   *

   * }
   * ```
   *
   * RFC 5280, section 4.1.2.5:
   *
   * > CAs conforming to this profile MUST always encode certificate validity dates through the year
   * > 2049 as UTCTime; certificate validity dates in 2050 or later MUST be encoded as
   * > GeneralizedTime.
   */
  internal val time: DerAdapter<Long> =
    object : DerAdapter<Long> {
      override fun matches(header: DerHeader): Boolean {

#### Endpoints

Endpoints have an optimized code path, as they are by far the most frequently updated resource - in a steady cluster, this will often be the *only* change, caused by scale up/down.

## Main **FastAPI** app

And now in the file `sql_app/main.py` let's integrate and use all the other parts we created before.

### Create the database tables

        requireMultiplexed = planToReplace != null && planToReplace.isReady,
      ) ?: return null

    // If we coalesced our connection, remember the replaced connection's route. That way if the
    // coalesced connection later fails we don't waste a valid route.
    if (planToReplace != null) {
      nextRouteToTry = planToReplace.route
      planToReplace.closeQuietly()
    }

    connectionUser.connectionAcquired(result)

    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. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without

 *  Fix: Don't drop uncaught exceptions thrown in async calls.
 *  Fix: Throw an exception eagerly when a request body is not legal. Previously
    we ignored the problem at request-building time, only to crash later with a
    `NullPointerException`.
 *  Fix: Include a backwards-compatible `OkHttp-Response-Source` header with
    `OkUrlFactory `responses.
 *  Fix: Don't include a default User-Agent header in requests made with the Call

```Python hl_lines="2"
@app.get('/')
def results():
    results = some_library()
    return results
```

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Si tu aplicación (de alguna manera) no tiene que comunicarse con nada más y en consecuencia esperar a que responda, usa `async def`.

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