24. OAuth 2.0: Explained with API Request and Response Sample | High Level System Design

➡️ Notes link: Shared in the Member Community Post (If you are Member of this channel, then pls check the Member community post, i have shared the Notes link there)

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[deepak-kuqq]

you videos made LLD and HLD so simple for me !!

[gowtham]

Great. Thank you for the Clear and Simple Explanation

[shubhamrajput]

Waiting for Spring Boot videos as covered all the topics of Java and LLD, currently going through HLD

[dhivyaviswanathan]

Recently I bought your LLD course from Udemy .The effort is awesome but the thing is some video's are in Hindi its hard to understand since I am from south. Please make upcoming videos in English so that everyone can make use of it.Thanks shreyansh.

[koteshwarraomaripudi]

For csrf, google could issue token only if the client that is requesting the token is matching with the client id that the code was given to

[prateek]

Hi Shrayansh, I think there is some mistake in the CSRF attack workflow here. When Insta sends request to the resource server with authorization_code (of the attacker), redirect_uri, id and secret the resource server after validation of the code sends the response with the requested data to the redirect_url (which is insta’s uri because this is what was present in the request) not the attacker. Just with the authorization code of the attacker, there is no way for the resource server to send the data to the attacker.

[adityaallam]

Hi Sir, great video! I have a question, all the sensitive information(client id, client secret, username, password) is sent via query parameters, how is security ensured so that these information is not stolen? Thanks in advance!

[DurgaShiva]

Eagerly Waiting for JWT video, as well as Spring boot implementation for O-AUTH as well as JWT from you.

[shubhamjumde]

When there is inter service communication, like Order service calls Delivery service, how OAuth is implemented? What would be resource owner, authentication server and all?
This video very well explains OAuth and helped me to understand OAuth . Thank you!

[gauravraj]

Hey Shreyansh,

Do you have any plan to create a video on fetching thread dump and analysing it for debugging purposes ?

Please reply if you see this. I have asked multiple things on different videos but unfortunately could not get reply to any.

[sitikantapanigrahi]

Hello bhaiya. I have one query. Should i have to pay monthly if i join the membership.

[khushgandhi]

Hey shreyansh, how many videos are pending for the hld playlist?

[ramprasadthakur]

Hi Shreyansh In CSRF attack attacker can know my state value as it's passed in request param if he intercepts my request he will get access to it as well right?

[ShubhamRajput]

Hello Shreyansh,

Regarding the authorization & token request, video mentions to include the redirect URI in the query parameter. Typically, for each REST API POST call, we expect a response. Could you clarify whether the authorization code will be included in the REST API call response, or if it will be sent separately by the authorization server via a webhook call to the client's redirect URI? If it is indeed a webhook call, does the client also need to expose an endpoint to receive the authorization code? I'm curious about the industry standard in this context.

[gauravraj]

Hey Shrayansh, posting 1 question related to LLD / HLD interview.
1. How are we supposed to create those block diagrams and demonstrate during interview? Asking as I can see interviewee is using some software in one of the mock interviews you took which might not be possible for others.
2. Also does it depend oncompany to company whether they will select an interviewee when he was unable to submit working code though was able to convey uml diagram?

[kartikeyrana]

eagerly waiting for the Springboot implementation !

[vikasrai]

Hello Shreyansh, I have been following since more than a year now, I have been binge watching your videos earlier even when I wasn't interviewing, a few months back I had some health issue and I had to take break from my work, now I am preparing for interviews and I am trying to watch your playlist, few videos are member only, and you also have a course on udemy, so my question is, Is your course on udemy and the playlist on youtube(with membership) any different or they both are same ? If not same what are the differences? Regards.

[tejasshaha]

Nice video. 1 question. For /authorization api why we are using GET request ? What if Gmail want to create/update entry at their side to make sure who has asked for code/token then it should be POST request right ?

[AbhishekKumar-kkqs]

Hi shreyansh,

Can you please suggest some books which u follow for learning these cool backend technology.

[hnmdrvw]

Can you cover use cases of each grant type