Authenticating with OAuth 2.0 Overview
The LinkedIn API uses OAuth 2.0 for user authorization and API authentication. Applications must be authorized and authenticated before they can fetch data from LinkedIn or get access to member data.
Follow one of the two authorization flows in Permissions to get started.
If you are developing an Android or iOS application, use one of LinkedIn's SDKs to handle the authentication process. There are also several third-party libraries in the open source community that abstract the OAuth 2.0 authentication process in every major programming language.
LinkedIn does not support TLS 1.0. You must use TLS 1.1 or 1.2 when calling LinkedIn APIs. All API requests to
api.linkedin.com must be made over HTTPS. Calls made over HTTP will fail.