For example, it was clear that ideally it should be based on standard Python type hints.

Also, the best approach was to use already existing standards.

So, before even starting to code **FastAPI**, I spent several months studying the specs for OpenAPI, JSON Schema, OAuth2, etc. Understanding their relationship, overlap, and differences.

## Design

Events
======

Events allow you to capture metrics on your application’s HTTP calls. Use events to monitor:

 * The size and frequency of the HTTP calls your application makes. If you’re making too many calls, or your calls are too large, you should know about it!
 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

crawler.data.env.param.key.pattern=^FESS_ENV_.*
crawler.ignore.robots.txt=false
crawler.ignore.robots.tags=false
crawler.ignore.content.exception=true
crawler.failure.url.status.codes=404
crawler.system.monitor.interval=60
crawler.hotthread.ignore_idle_threads=true
crawler.hotthread.interval=500ms
crawler.hotthread.snapshots=10
crawler.hotthread.threads=3
crawler.hotthread.timeout=30s
crawler.hotthread.type=cpu

                    wagon.removeTransferListener(sha1ChecksumObserver);
                }

                if (downloaded) {
                    // keep the checksum files from showing up on the download monitor...
                    if (downloadMonitor != null) {
                        wagon.removeTransferListener(downloadMonitor);
                    }

                    // try to verify the SHA-1 checksum for this file.

</a>

---

Istio is an open source service mesh that layers transparently onto existing distributed applications. Istio’s powerful features provide a uniform and more efficient way to secure, connect, and monitor services. Istio is the path to load balancing, service-to-service authentication, and monitoring – with few or no service code changes.

- For in-depth information about how to use Istio, visit [istio.io](https://istio.io)

Esse desacoplamento de partes, e sendo um "microframework" que pode ser extendido para cobrir exatamente o que é necessário era um recurso chave que eu queria manter.

Dada a simplicidade do Flask, parecia uma ótima opção para construção de APIs. A próxima coisa a procurar era um "Django REST Framework" para Flask.

/// check | "**FastAPI** inspirado para"

/**
 * termynal.js
 * A lightweight, modern and extensible animated terminal window, using
 * async/await.
 *
 * @author Ines Montani <******@****.***>
 * @version 0.0.1
 * @license MIT
 */

'use strict';

/** Generate a terminal widget. */
class Termynal {
    /**
     * Construct the widget's settings.
     * @param {(string|Node)=} container - Query selector or container element.
     * @param {Object=} options - Custom settings.

--key object \
--restore-request Days=3
```

### 4.1 Monitoring transition events

`s3:ObjectTransition:Complete` and `s3:ObjectTransition:Failed` events can be used to monitor transition events between the source cluster and transition tier. To watch lifecycle events, you can enable bucket notification on the source bucket with `mc event add`  and specify `--event ilm` flag.

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///

/// tip | "Dica"

Interceptors
============

Interceptors are a powerful mechanism that can monitor, rewrite, and retry calls. Here's a simple interceptor that logs the outgoing request and the incoming response.

```java
class LoggingInterceptor implements Interceptor {
  @Override public Response intercept(Interceptor.Chain chain) throws IOException {
    Request request = chain.request();

    long t1 = System.nanoTime();