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La API de usuarios proporciona funciones para construir URL que le permitan al usuario acceder o salir y, luego, redireccionarse de nuevo a tu aplicación.
El servidor web de desarrollo simula Cuentas de Google con sus propias páginas para acceso y salida.
Cuando accedes a tu aplicación en el servidor web de desarrollador, el servidor te solicita una dirección de correo electrónico para usar en la sesión. Consulta la página sobre el servidor web de desarrollador para obtener más información.
Sugerencia: Una manera fácil de restringir el acceso de los usuarios que accedieron a una parte de tu aplicación es usar el elemento de configuración login: required para el controlador de URL.
Consulta Configura una app.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-09-04 (UTC)"],[[["\u003cp\u003eThe Users API provides functions to create URLs for user sign-in and sign-out actions, redirecting them back to your application afterward.\u003c/p\u003e\n"],["\u003cp\u003e\u003ca href=\"/appengine/docs/legacy/standard/python/refdocs/google.appengine.api.users#google.appengine.api.users.create_login_url\"\u003e\u003ccode\u003eusers.create_login_url()\u003c/code\u003e\u003c/a\u003e generates a sign-in URL, while \u003ca href=\"/appengine/docs/legacy/standard/python/refdocs/google.appengine.api.users#google.appengine.api.users.create_logout_url\"\u003e\u003ccode\u003eusers.create_logout_url()\u003c/code\u003e\u003c/a\u003e generates a sign-out URL, both returning users to a specified URL.\u003c/p\u003e\n"],["\u003cp\u003eThe development web server simulates Google Accounts by using its own sign-in and sign-out system, prompting users for an email address.\u003c/p\u003e\n"],["\u003cp\u003eThis API is for first-generation App Engine standard environment runtimes; migrating to App Engine Python 3 requires different options for legacy bundled services.\u003c/p\u003e\n"]]],[],null,["# Login URLs\n\nThe Users API provides functions for constructing URLs that allow the user to sign in or sign out,\nthen be redirected back to your application.\n| This page describes how to use the legacy bundled services and APIs. This API can only run in first-generation runtimes in the App Engine standard environment. If you are updating to the App Engine Python 3 runtime, refer to the [migration guide](/appengine/migration-center/standard/migrate-to-second-gen/python-differences) to learn about your migration options for legacy bundled services.\n\n[`users.create_login_url()`](/appengine/docs/legacy/standard/python/refdocs/google.appengine.api.users#google.appengine.api.users.create_login_url)\nand [users.create_logout_url()](/appengine/docs/legacy/standard/python/refdocs/google.appengine.api.users#google.appengine.api.users.create_logout_url)\neach take a destination URL for the application, and return a URL for signing in or signing out\nthat redirects back to the given URL afterward. \n\n class MainPage(webapp2.RequestHandler):\n def get(self):\n user = users.get_current_user()\n if user:\n nickname = user.nickname()\n logout_url = users.create_logout_url('/')\n greeting = 'Welcome, {}! (\u003ca href=\"{}\"\u003esign out\u003c/a\u003e)'.format(\n nickname, logout_url)\n else:\n login_url = users.create_login_url('/')\n greeting = '\u003ca href=\"{}\"\u003eSign in\u003c/a\u003e'.format(login_url)\n self.response.write(\n '\u003chtml\u003e\u003cbody\u003e{}\u003c/body\u003e\u003c/html\u003e'.format(greeting))\n\nThe development web server simulates Google Accounts using its own sign-in and sign-out facilities.\nWhen you sign in to your application on the development web server, the server prompts you for an\nemail address to use for the session. See [The\nDevelopment Web Server](/appengine/docs/legacy/standard/python/tools/using-local-server) for more information.\n\n**Tip:** An easy way to restrict access to a part of your application to\nsigned in users is to use the `login: required` configuration element for the URL handler.\nSee [Configuring an App](/appengine/docs/legacy/standard/python/config/appref)."]]