What is 3LO authentication?

 3LO (Three-Legged OAuth) flow is a secure authorization process—also known as the Authorization Code Flow—that lets a third-party application access user data without seeing the user's password. The three distinct parties involved are the end-user (resource owner), the client app, and the authorization server.How the Flow WorksUser Redirection: Your app sends the user to the server's login and consent page.Consent Grant: The user logs in and approves the requested permissions.Authorization Code: The server sends a temporary code back to your app.Token Exchange: Your app trades this code directly with the server for an access token.API Access: Use that token to fetch protected data on the user's behalf.If you want to implement this, tell me:Which platform or service (like Google, GitHub, or Atlassian) are you connecting to?Is your app a mobile app, single-page web app, or server-side app?I can give you the exact integration steps or code examples