OAuth1AuthorizationFlow (Jersey 2.11 API)

```
public interface OAuth1AuthorizationFlow
```
The interface of the OAuth 1 Authorization Flow utility.
The implementation of this interface is capable of performing of the user authorization defined in the OAuth1 specification. The result of the authorization is the access token. The user authorization is called also Authorization Flow. The implementation initiates the authorization process with the Authorization server, then provides redirect URI to which the user should be redirected (the URI points to authorization consent page hosted by Service Provider). The user grants an access using this page. Service Provider redirects the user back to the our server and the authorization process is finished using the implementation.

To perform the authorization follow these steps:
Get the instance of this interface using OAuth1ClientSupport.
Call start() method. The method returns redirection uri as a String. Note: the method internally makes a request to the request token uri and gets Request Token which will be used for the authorization process.
Redirect user to the redirect uri returned from the start method. If your application deployment does not allow redirection (for example the app is a console application), then provide the redirection URI to the user in other ways.
User should authorize your application on the redirect URI.
After authorization the Authorization Server redirects the user back to the URI specified by OAuth1Builder.FlowBuilder.callbackUri(String) and provide the oauth_verifier as a request query parameter. Extract this parameter from the request. If your deployment does not support redirection (your app is not a web server) then Authorization Server will provide the user with verifier in other ways (for example display on the html page). You need to get this verifier from the user.
Use the verifier to finish the authorization process by calling the method finish(String) supplying the verifier. The method will internally request the access token from the Authorization Server and return it.
You can use AccessToken together with ConsumerCredentials to perform the authenticated requests to the Service Provider. You can also call methods getAuthorizedClient() to get client already configured with support for authentication from consumer credentials and access token received during authorization process.

Important note: one instance of the interface can be used only for one authorization process. The methods must be called exactly in the order specified by the list above. Therefore the instance is also not thread safe and no concurrent access is expected.

start

finish

Since:: 2.3
Author:: Miroslav Fuksa (miroslav.fuksa at oracle.com)

Method Summary

Methods
Modifier and Type	Method and Description
`AccessToken`	`finish()` Finish the authorization process and return the `AccessToken`.
`AccessToken`	`finish(String verifier)` Finish the authorization process and return the `AccessToken`.
`javax.ws.rs.client.Client`	`getAuthorizedClient()` Return the client configured for performing authorized requests to the Service Provider.
`javax.ws.rs.core.Feature`	`getOAuth1Feature()` Return the `oauth filter feature` that can be used to configure `client` instances to perform authenticated requests to the Service Provider.
`String`	`start()` Start the authorization process and return redirection URI on which the user should give a consent for our application to access resources.

- Method Detail
  - start
```
String start()
```
    Start the authorization process and return redirection URI on which the user should give a consent for our application to access resources.
    Note: the method makes a request to the Authorization Server in order to get request token.
    
    Returns:
    URI to which user should be redirected.
  - finish
```
AccessToken finish()
```
    Finish the authorization process and return the AccessToken. The method must be called on the same instance after the start() method was called and user granted access to this application.
    The method makes a request to the Authorization Server but does not exchange verifier for access token. This method is intended only for some flows/cases in OAuth1.
    
    Returns:
    Access token.
    Since:
    
    2.7
  - finish
```
AccessToken finish(String verifier)
```
    Finish the authorization process and return the AccessToken. The method must be called on the same instance after the start() method was called and user granted access to this application.
    The method makes a request to the Authorization Server in order to exchange verifier for access token.
    
    Parameters:
    verifier - Verifier provided from the user authorization.
    
    Returns:
    Access token.
  - getAuthorizedClient
```
javax.ws.rs.client.Client getAuthorizedClient()
```
    Return the client configured for performing authorized requests to the Service Provider. The authorization process must be successfully finished by instance by calling methods start() and finish(String).
    
    Returns:
    Client configured to add correct Authorization header to requests.
  - getOAuth1Feature
```
javax.ws.rs.core.Feature getOAuth1Feature()
```
    Return the oauth filter feature that can be used to configure client instances to perform authenticated requests to the Service Provider.
    The authorization process must be successfully finished by instance by calling methods start() and finish(String).
    
    Returns:
    oauth filter feature configured with received AccessToken.

Interface OAuth1AuthorizationFlow

Method Summary

Method Detail

start

finish

finish

getAuthorizedClient

getOAuth1Feature