What is OAuth and how does it secure REST API calls?

What is OAuth and how does it secure REST API calls?

Since most of providers use OAuth 2.0 and OAuth 1.0 has been deprecated by major providers, I will explain OAuth2.0 What is OAuth?

What does the authorization code in OAuth mean?

Authorization code: A code that the auth server returns to the client which can be exchanged for an access token at the api server. Access Token: A string that identifies a user, usually comes with an expiry period.

How does OAuth work in Azure DevOps Services?

Authenticate your web app users for REST API access, so your app doesn’t continue to ask for usernames and passwords. Azure DevOps Services uses the OAuth 2.0 protocol to authorize your app for a user and generate an access token. Use this token when you call the REST APIs from your app.

How to access Facebook data with OAuth server?

To access the data: please login with facebook to access the page User clicks on the login with Facbook button, a new popup OAuth dialog opens. asking for facebook username and password. User enters his username and password, then allow access to your app. auth server redirects the user to your website with a code as parameter in URL.

Is the OAuth token opaque to the client?

In OAuth, the token is designed to be opaque to the client, but in the context of a user authentication, the client needs to be able to derive some information from the token. This problem stems from the fact that the client is not the intended audience of the OAuth access token.

What does OAuth tell the application about the user?

However, OAuth tells the application none of that. OAuth says absolutely nothing about the user, nor does it say how the user proved their presence or even if they’re still there. As far as an OAuth client is concerned, it asked for a token, got a token, and eventually used that token to access some API.

How does an Auth server respond to an API request?

Auth Server returns details about user, profile pic, email etc. API server identifies the user, sends him the response along with access token. client sends the access token to the api server on next request.

How to get OAuth access token for Microsoft Graph?

In OAuth, when a client application wants to access a resource (for example our Graph API), the first thing it needs to do is to authenticate itself (meaning which client application is calling the service, not which user is using it). This is done by sending the Client ID and it’s matching Client Secret.

How is a timestamp used in OAuth 2.0?

TimeStamp is used identify the time the token or nonce is created which is used to expire the token or nonce in a limited time frame (1-2seconds), the time needed for a request to complete. Not the answer you’re looking for? Browse other questions tagged api rest authentication oauth oauth-2.0 or ask your own question.

What is consumer key and how does it secure REST API calls?

Consumer Key or APP_ID: a public key used by auth server to identify your application. Consumer Secret or APP_SECRET: a private key which should be kept confidential. the below terms has nothing to do with OAuth but are used with OAuth to make it more secure. Timestamp: a string that tells date and time.