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24 mins read image
sheikh irshad September 29, 2021
Spring Security Oauth2- JWT Authentication in a resource server

Spring security provides a minimal setup required to implement the JWT authentication in a resource server

16 mins read image
sheikh irshad September 01, 2021
Spring Bean Scopes and Lookup method injection

Spring Bean Scope defines the lifecycle and the visibility of the instances created from the bean definitions

7 mins read image
sheikh irshad August 24, 2021
@Transactional Rollback options in Spring Data

@Transactional provides rollbackOn and noRollbackOn options to control the rollback for exceptions

10 mins read image
sheikh irshad August 24, 2021
Implement Firebase custom tokens with Spring security

Firebase custom tokens allows us to authenticate users with JWT tokens generated in our own servers.

15 mins read image
sheikh irshad August 18, 2021
Spring Security - JPA implemenation of UserDetailsService For DaoAuthenticationProvider

JPA based AuthenticationProvider to provider username and password authentication

3 mins read image
sheikh irshad August 18, 2021
Spring Security - In-Memory Authentication using DaoAuthenticationProvider

DaoAuthenticationProvider uses UserDetailsService and a password encoder to authentication username password based authentication

12 mins read image
sheikh irshad August 18, 2021
Spring Security- How to implement username and password authentication

Username and password authentication is one of most commonly used methods. Spring security provides API's to configure form-based login, basic authentication and many more with storage options such as JDBC authentication, in-memory authentication as well as custom authentication providers

10 mins read image
sheikh irshad August 17, 2021
Spring Security Architecture fundamentals

Spring Security provides a ready to use framework for authentication as well as authorization. It provides AuthenticationProviders for Username and password and basic authentication, LDAP authentication, JWT authentication and provides apis for building custom AuthenticationProviders

19 mins read image
sheikh irshad February 17, 2019
Select values in criteria query - select, multiselect, tuple query

JPA specification provides different ways to select values in criteria query. select, multiselect and tuple queries are used to select single or multiple values from one or more entities

38 mins read image
sheikh irshad February 11, 2019
Programmatic Criteria Queries using JPA Criteria API

Criteria Queries in JPA are type-safe and portable way of fetching data. It provides methods such as Criteria Join, Fetch Join, aggregate functions and sub queries to fetch data.