*
   * This will be invoked for route selection regardless of whether the client
   * is configured with a single proxy, a proxy selector, or neither.
   *
   * @param url a URL with only the scheme, hostname, and port specified.
   */
  open fun proxySelectStart(
    call: Call,
    url: HttpUrl,
  ) {
  }

  /**
   * Invoked after proxy selection.
   *

        String href = element.attr("href");
        HttpUrl link = response.request().url().resolve(href);
        if (link == null) continue; // URL is either invalid or its scheme isn't http/https.
        HttpUrl linkWithoutFragment = link.newBuilder().fragment(null).build();
        if (!queue.offer(linkWithoutFragment)) break; // Queue is full.
      }
    }
  }

Es wird die Validierung dieser zusammengesetzten Daten übernehmen, und sie im OpenAPI-Schema und der automatischen Dokumentation dokumentieren.

## Einzelne Werte im Body

So wie `Query` und `Path` für Query- und Pfad-Parameter, hat **FastAPI** auch das Äquivalent `Body`, um Extra-Daten für Body-Parameter zu definieren.

**FastAPI** will do the automatic conversion from the request, so that the parameter `item` receives its specific content and the same for `user`.

It will perform the validation of the compound data, and will document it like that for the OpenAPI schema and automatic docs.

## Singular values in body { #singular-values-in-body }

The same way there is a `Query` and `Path` to define extra data for query and path parameters, **FastAPI** provides an equivalent `Body`.

	TransferDuration time.Duration
	Endpoint         string
	Secure           bool
	Err              error
}

func (rs *replStat) endpoint() string {
	scheme := "http"
	if rs.Secure {
		scheme = "https"
	}
	return scheme + "://" + rs.Endpoint
}

package schema

import (
	"reflect"
	"testing"
)

func TestRemoveSettingFromTag(t *testing.T) {
	tags := map[string]string{
		`gorm:"before:value;column:db;after:value" other:"before:value;column:db;after:value"`:  `gorm:"before:value;after:value" other:"before:value;column:db;after:value"`,
		`gorm:"before:value;column:db;" other:"before:value;column:db;after:value"`:             `gorm:"before:value;" other:"before:value;column:db;after:value"`,

	host := globalLocalNodeName
	secure := globalIsTLS
	if globalMinioEndpointURL != nil {
		host = globalMinioEndpointURL.Host
		secure = globalMinioEndpointURL.Scheme == "https"
	}

	duration := time.Until(cred.Expiration)
	if duration > time.Hour || duration < time.Hour {
		// Always limit to 1 hour.
		duration = time.Hour
	}

/// note | Technical Details

It will actually internally create a *path operation* for each *path operation* that was declared in the `APIRouter`.

So, behind the scenes, it will actually work as if everything was the same single app.

///

/// check

You don't have to worry about performance when including routers.

    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o targetProcedureSchemaList: (NotRequired - Default list:{})
    #  You can specify target schema of generated parameter bean for procedure.
    #  This property is valid only when generateProcedureParameterBean is valid.
    #   e.g. list:{PROCEDUREDB}
    #

Também, a melhor abordagem era usar padrões já existentes.

Então, antes mesmo de começar a codificar o **FastAPI**, eu investi vários meses estudando as especificações do OpenAPI, JSON Schema, OAuth2 etc. Entendendo suas relações, sobreposições e diferenças.

## Design

Eu então dediquei algum tempo projetando a "API" de desenvolvimento que eu queria como usuário (como um desenvolvedor usando o FastAPI).