By Ryan Boyd
ISBN-10: 1449311601
ISBN-13: 9781449311605
No matter if you boost internet functions or cellular apps, the OAuth 2.0 protocol will keep loads of complications. This concise creation indicates you the way OAuth offers a unmarried authorization know-how throughout a variety of APIs on the net, so that you can securely entry clients info - resembling consumer profiles, photographs, movies, and make contact with lists - to enhance their adventure of your application.
Through code examples, step by step directions, and use-case examples, you'll observe OAuth 2.0 on your server-side internet program, client-side app, or cellular app. discover what it takes to entry social graphs, shop information in a user's on-line filesystem, and practice many different projects.
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Extra info for Getting Started with OAuth 2.0: Programming clients for secure web API authorization and authentication
Example text
Photo Viewer application lets the user know that it needs access to her Contacts. 2. The OAuth authorization server used by the Contact app’s API prompts the user to grant permission for the Photo Viewer application to read her contacts. 3. After the user has approved, she is redirected back to the Photo Viewer application, which now has access to her contacts. Step-by-Step Like in the case of the flow for Server-side Web Applications described in Chapter 2, you’ll first need to register your application with the API provider (see “Developer and Application Registration” on page 7).
Since requesting data access requires redirecting your users to the authorization server, it’s a best practice to let them know in advance what will happen. You can do this by displaying a message, along with a link that directs the user to the OAuth authorization endpoint. You can find the URL for the OAuth authorization endpoint in the API provider’s documentation. com/o/oauth2/auth You will need to specify a few query parameters with this link: client_id The value provided to you when you registered your application.
It is extremely critical that the credentials used to authenticate the client be kept highly confidential. Ideally, these credentials would also be regularly rotated. Step-by-Step To demonstrate this flow, we’ll use Facebook’s implementation of App Login with the App Insights service. info Step 1: Exchange the application’s credentials for an access token The application needs to request an access token from the authorization server, authenticating the request with its client credentials. You can find the authorization server’s token URL in the API provider’s documentation.
Getting Started with OAuth 2.0: Programming clients for secure web API authorization and authentication by Ryan Boyd
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