# Sobre as versões do FastAPI { #about-fastapi-versions }

**FastAPI** já está sendo usado em produção em muitas aplicações e sistemas. E a cobertura de testes é mantida em 100%. Mas seu desenvolvimento ainda está avançando rapidamente.

Novas funcionalidades são adicionadas com frequência, bugs são corrigidos regularmente e o código continua melhorando continuamente.

But if we use the same model for another *path operation*, we could be sending our user's passwords to every client.

/// danger

Never store the plain password of a user or send it in a response like this, unless you know all the caveats and you know what you are doing.

///

## Add an output model { #add-an-output-model }

            }

            if (log.isTraceEnabled()) {
                log.trace("Sending NtTransNotifyChange for " + this.handle);
            }
            try {
                resp = th.send(req, resp, RequestParam.NO_TIMEOUT, RequestParam.NO_RETRY);
            } catch (final SmbException e) {
                if (e.getNtStatus() == 0xC0000120) {
                    // cancelled

```java
RecordedRequest request = server.takeRequest();
assertEquals("POST /v1/chat/send HTTP/1.1", request.getRequestLine());
assertEquals("application/json; charset=utf-8", request.getHeaders().get("Content-Type"));
assertEquals("{}", request.getBody().readUtf8());
```

### Kotlin
```kotlin
val request = server.takeRequest()
assertEquals("POST /v1/chat/send HTTP/1.1", request.requestLine)

				// The context of the lock is canceled, this can happen
				// if one lock lost quorum due to cluster instability
				// in that case, try to lock again.
				break keepLock
			case ld.lockContext <- lkctx:
				// Send the lock context to anyone asking for it
			}
		}
	}
}

func mergeContext(ctx1, ctx2 context.Context) (context.Context, context.CancelFunc) {
	ctx, cancel := context.WithCancel(context.Background())
	go func() {

We are going to use **FastAPI** security utilities to get the `username` and `password`.

OAuth2 specifies that when using the "password flow" (that we are using) the client/user must send a `username` and `password` fields as form data.

And the spec says that the fields have to be named like that. So `user-name` or `email` wouldn't work.

		return
	}

	if err = validateConfig(ctx, cfg, subSys); err != nil {
		var validationErr ldap.Validation
		if errors.As(err, &validationErr) {
			// If we got an LDAP validation error, we need to send appropriate
			// error message back to client (likely mc).
			writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPValidation),
				validationErr.FormatError(), r.URL)
			return
		}

### Conditional Cache Hit
 
When cache flags require checking the cache results are still valid an early cacheConditionalHit event is
received followed by a cache hit or miss.  Critically in the cache hit scenario the server won’t send the response body.

The response will have non-null `cacheResponse` and `networkResponse`. The cacheResponse will be used as the top level
response only if the response code is HTTP/1.1 304 Not Modified.
 
 - CallStart

    message: String,
    stackTrace: Any?,
  ) {
    if (Build.VERSION.SDK_INT >= 30) {
      (stackTrace as CloseGuard).warnIfOpen()
    } else {
      // Unable to report via CloseGuard. As a last-ditch effort, send it to the logger.
      super.logCloseableLeak(message, stackTrace)
    }
  }

  @SuppressLint("NewApi")
  override fun isCleartextTrafficPermitted(hostname: String): Boolean =

import okio.Buffer
import okio.BufferedSource
import okio.ByteString
import okio.Source
import okio.Timeout

/**
 * Reads HTTP/2 transport frames.
 *
 * This implementation assumes we do not send an increased [frame][Settings.getMaxFrameSize] to the
 * peer. Hence, we expect all frames to have a max length of [Http2.INITIAL_MAX_FRAME_SIZE].
 */
class Http2Reader(