So, it was a complete additional system.

It is not very popular or used nowadays.

## OpenAPI { #openapi }

OpenAPI (previously known as Swagger) is the open specification for building APIs (now part of the Linux Foundation).

**FastAPI** is based on **OpenAPI**.

That's what makes it possible to have multiple automatic interactive documentation interfaces, code generation, etc.

//	    logger.LogIf(ctx, err)
//	}
type objSweeper struct {
	Object              string
	Bucket              string
	VersionID           string // version ID set by application, applies only to DeleteObject and DeleteObjects APIs
	Versioned           bool
	Suspended           bool
	TransitionStatus    string
	TransitionTier      string
	TransitionVersionID string
	RemoteObject        string
}

import okhttp3.internal.http.RecordingProxySelector
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.internal.TlsUtil.localhost

/**
 * OkHttp is usually tested with functional tests: these use public APIs to confirm behavior against
 * MockWebServer. In cases where logic is particularly tricky, we use unit tests. This class makes
 * it easy to get sample values to use in such tests.
 *

    } catch (e: NoSuchMethodException) {
      super.buildTrustRootIndex(trustManager)
    }

  override fun getHandshakeServerNames(sslSocket: SSLSocket): List<String> {
    // The superclass implementation requires APIs not available until API 25+.
    if (Build.VERSION.SDK_INT <= 24) return listOf()
    return super.getHandshakeServerNames(sslSocket)
  }

  override fun log(
    message: String,
    level: Int,

    img: https://fastapi.tiangolo.com/img/sponsors/lambdatest.png
  - url: https://requestly.com/fastapi
    title: All-in-one platform to Test, Mock and Intercept APIs. Built for speed, privacy and offline support.

                    "API Compatibility Report",
                    "$HIDDEN_ARTIFACT_DESTINATION/report-architecture-test-binary-compatibility-report.html",
                )
                buildReportTab("Incubating APIs Report", "incubation-reports/all-incubating.html")
            }
            if (stage.performanceTests.isNotEmpty()) {
                buildReportTab("Performance", "performance-test-results.zip!report/index.html")
            }

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

### OpenAPI { #openapi }

**FastAPI** genera un "esquema" con toda tu API utilizando el estándar **OpenAPI** para definir APIs.

#### "Esquema" { #schema }

Un "esquema" es una definición o descripción de algo. No el código que lo implementa, sino solo una descripción abstracta.

#### Esquema de la API { #api-schema }

Entonces, era un sistema completo adicional.

No es muy popular o usado hoy en día.

## OpenAPI { #openapi }

OpenAPI (anteriormente conocido como Swagger) es la especificación abierta para construir APIs (ahora parte de la Linux Foundation).

**FastAPI** se basa en **OpenAPI**.

Eso es lo que hace posible tener múltiples interfaces de documentación interactiva automática, generación de código, etc.

> ¿Cuál es la historia de este proyecto? Parece haber surgido de la nada y ser increíble en pocas semanas [...]

Aquí hay un poquito de esa historia.

## Alternativas { #alternatives }

He estado creando APIs con requisitos complejos durante varios años (Machine Learning, sistemas distribuidos, trabajos asíncronos, bases de datos NoSQL, etc.), liderando varios equipos de desarrolladores.

> What’s the history of this project? It seems to have come from nowhere to awesome in a few weeks [...]

Here's a little bit of that history.

## Alternatives { #alternatives }

I have been creating APIs with complex requirements for several years (Machine Learning, distributed systems, asynchronous jobs, NoSQL databases, etc), leading several teams of developers.

As part of that, I needed to investigate, test and use many alternatives.