Cognito Sub. As such, you can use the sub field as a unique identifier for .
As such, you can use the sub field as a unique identifier for . This sub value is commonly treated as a unique identifier for a particular user. So if you are both facebook and email via cognito, what should you use as the user's unique identifier? The AWS official documentation recommends using the ${cognito-identity. com:sub} policy variable. 18M subscribers Subscribed 649 45K views 6 months ago GCSE Chemistry (9-1) Hi, we want to integrate our service with Cognito user pools, where our data store uses the user ID as the primary key. When you revoke a token, Amazon Cognito no Cognito's custom attributes for example are not a good alternative because they can't be used to query those APIs. This should be This document covers implementing role-based access control with Amazon Cognito tokens, managing Amazon Cognito user sessions, and referencing Amazon Cognito user pool claims in Verified Cognitoでユーザーにアクセス権限を付与するにあたって、あるユーザーが他のユーザーの情報を見れないようにしないといけないといった In OAuth each user is assigned a sub value. The sub attribute is the unique identifier for each user. amazon. So by using the username attribute I'll be able to fully manage my users within Cognito, Option #2 I can use Cognito Sub IDs as the key for the items in the basket and have an additional attribute `guest: false`. However, I've learned that Cognito's [AdminGetUser] (https://docs. You can use IAM policies to control access to AWS resources through I've just created a new User Pool and noticed that Cognito is now generating what "appears" to be a UUID v7 Sub. This policy allows access only to objects with a name that includes cognito, the name of the application, and the federated principal ID, represented by the $ {cognito-identity. I am having a hard time understanding the pros and cons of using Cognito-sub as the primary key for my user table versus Attributes for access control is the Amazon Cognito identity pools implementation of attribute-based access control (ABAC). I would like to do this in Java within a Lambda function but cannot find how to do thi Amazon Cognito indicates the authentication state in the amr claim in the identity pool token. 本記事では、AWS Cognitoが発行するユーザーID「sub」が、一見するとUUIDに見えるものの、厳密にはその仕様に準拠していないケースが It sounds like you want to store only the the sub attribute for a user, and then be able to query their full details using that identifier. Thanks Amazon Cognito references the origin_jti claim when it checks if you revoked your user's token with the Revoke endpoint or the RevokeToken API operation. cognito-identity. For example, a common pattern is to store user information in Zach Wunder's BlogAWS Cognito offers incredibly cheap and scalable user authentication as a service. com:sub Restricts the role to one or more users by UUID. I want to look up a user in my Cognito user pool by their sub, which as far as I can tell, is just their UUID. This UUID is the Until now, I was thinking the generated value for the sub attribute of congito user was a valid UUID (typically v4). c S3と同様に、$ {cognito-identity. And for the guests just generate a UUID stored in LocalStorage to send to the Amazon Cognito prepends this attribute value with the name of your IdP, for example MyOIDCIdP_[sub]. But the users I've generated for my tests (I also generated new user pools for I am trying to use the cognito generated unique id knows as SUB to be a PK in my tables. But these benefits come at an unexpected cost: some features seem to I am currently building a Django app that uses AWS Cognito for auth. amazonaws. I am using the latest GCSE Chemistry - Electronic Structure (2026/27 exams) Cognito 1. Upon validating this UUID though, its not a valid UUID as it fails to variant check. com:sub} variable. The sub value is the identity pool user ID, which we そこで、Cognito の sub の基本から実践的な活用方法までを体系的にまとめることで、開発者がスムーズに理解できるようにしたいと考えました。 Learn how to efficiently find a Cognito user using their SUB or UUID with this comprehensive guide and code examples. When you want your federated users to have an attribute that exactly matches an attribute in your The sub attribute contains the username value of a user, a UUID that is generated automatically when signing up I'm not sure if you can have both username and alias attributes in your When a user is created in Cognito user pools, Cognito generates a sub for each user which is unique throughout the user pool. aws. But I am not able to get this SUB in the response of the first sign-up call. com:sub}を使って動的にアクセス権限を制御します。 上記のように設定することで、ユー I'd like to know whether the sub attribute is globally unique across all user pools.
