io.vertx.ext.web.handler

## Interface OAuth2AuthHandler

- All Superinterfaces:
    AuthenticationHandler, Handler<RoutingContext>

      public interface OAuth2AuthHandler
      extends AuthenticationHandler

  An auth handler that provides OAuth2 Authentication support. This handler is suitable for AuthCode flows.
  Author:
    Paulo Lopes

- - ### Method Summary

    All Methods Static Methods Instance Methods Abstract Methods Default Methods
    Modifier and Type | Method and Description
    --- | ---
    `static OAuth2AuthHandler` | `create(Vertx vertx, OAuth2Auth authProvider)` Create a OAuth2 auth handler without host pinning.
    `static OAuth2AuthHandler` | `create(Vertx vertx, OAuth2Auth authProvider, String callbackURL)` Create a OAuth2 auth handler with host pinning
    `OAuth2AuthHandler` | `extraParams(JsonObject extraParams)` Extra parameters needed to be passed while requesting a token.
    `OAuth2AuthHandler` | `pkceVerifierLength(int length)` PKCE (RFC 7636) is an extension to the Authorization Code flow to prevent several attacks and to be able to securely perform the OAuth exchange from public clients.
    `OAuth2AuthHandler` | `prompt(String prompt)` Indicates the type of user interaction that is required.
    `OAuth2AuthHandler` | `setupCallback(Route route)` add the callback handler to a given route.
    `OAuth2AuthHandler` | `withScope(String scope)` Return a new instance with the internal state copied from the caller but the scopes to be requested during a token request are unique to the instance.
    `OAuth2AuthHandler` | `withScopes(List<String> scopes)` Return a new instance with the internal state copied from the caller but the scopes to be requested during a token request are unique to the instance.

    - ### Methods inherited from interface io.vertx.core.Handler

      `handle`

- - ### Method Detail

    - #### create

          static OAuth2AuthHandler create(Vertx vertx,
                                          OAuth2Auth authProvider,
                                          String callbackURL)

      Create a OAuth2 auth handler with host pinning
      Parameters:
        `vertx` - the vertx instance
        `authProvider` - the auth provider to use
        `callbackURL` - the callback URL you entered in your provider admin console, usually it should be something like: `https://myserver:8888/callback`
      Returns:
        the auth handler

    - #### create

          static OAuth2AuthHandler create(Vertx vertx,
                                          OAuth2Auth authProvider)

      Create a OAuth2 auth handler without host pinning. Most providers will not look to the redirect url but always redirect to the preconfigured callback. So this factory does not provide a callback url.
      Parameters:
        `vertx` - the vertx instance
        `authProvider` - the auth provider to use
      Returns:
        the auth handler

    - #### extraParams

          OAuth2AuthHandler extraParams(JsonObject extraParams)

      Extra parameters needed to be passed while requesting a token.
      Parameters:
        `extraParams` - extra optional parameters.
      Returns:
        self

    - #### withScope

          OAuth2AuthHandler withScope(String scope)

      Return a new instance with the internal state copied from the caller but the scopes to be requested during a token request are unique to the instance.
      Parameters:
        `scope` - scope.
      Returns:
        new instance of this interface.

    - #### withScopes

          OAuth2AuthHandler withScopes(List<String> scopes)

      Return a new instance with the internal state copied from the caller but the scopes to be requested during a token request are unique to the instance.
      Parameters:
        `scopes` - scopes.
      Returns:
        new instance of this interface.

    - #### prompt

          OAuth2AuthHandler prompt(String prompt)

      Indicates the type of user interaction that is required. Not all providers support this or the full list. Well known values are:
      - login will force the user to enter their credentials on that request, negating single-sign on.
      - none is the opposite - it will ensure that the user isn't presented with any interactive prompt whatsoever. If the request can't be completed silently via single-sign on, the Microsoft identity platform endpoint will return an interaction_required error.
      - consent will trigger the OAuth consent dialog after the user signs in, asking the user to grant permissions to the app.
      - select_account will interrupt single sign-on providing account selection experience listing all the accounts either in session or any remembered account or an option to choose to use a different account altogether.
      Parameters:
        `prompt` - the prompt choice.
      Returns:
        self

    - #### pkceVerifierLength

          OAuth2AuthHandler pkceVerifierLength(int length)

      PKCE (RFC 7636) is an extension to the Authorization Code flow to prevent several attacks and to be able to securely perform the OAuth exchange from public clients. It was originally designed to protect mobile apps, but its ability to prevent authorization code injection makes it useful for every OAuth client, even web apps that use a client secret.
      Parameters:
        `length` - A number between 43 and 128. Or -1 to disable.
      Returns:
        self

    - #### setupCallback

          OAuth2AuthHandler setupCallback(Route route)

      add the callback handler to a given route.
      Parameters:
        `route` - a given route e.g.: `/callback`
      Returns:
        self

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