Quick Learn | FAQ's | Technical Solutions

Key steps to improving Rest API performance: Optimize Database Queries Use indexing effectively Implement query caching Optimize SQL statements Use database connection pooling Implement Caching Strategies Use in-memory caching (e.g. Redis, Memcached) Implement HTTP caching headers Use content delivery networks (CDN) for static contents Compress API Responses Use GZip compression Implement Brotli compression for modern browsers Use Efficient Data Formats Use JSON for most of use-cases Consider protocol buffers or message pack for binary data Implement Pagination Limit the amount of data returned in a single request Use cursor based pagination for large datasets using limit, offset etc. Asynchronous Processing Use message queue for time consuming tasks Implement WebHooks for long-running operations Rate Limiting Implement rate limiting to prevent abuse Use token bucket or leaky bucket algorithms Optimize Network Settings Use HTTP/2 or HTTP/3 Enable Keep-Alive connections Optimize TCP set...

Caching is a powerful optimization methods that improves the efficiency, scalability and performance of Rest APIs. It helps reduce the load on database, minimizes redundant computations and speed up response times by storing frequently request data closer to the client or server. 1. Application Layer Caching - Using Redis for Fast data retrieval Store frequently used data at in memory database (Redis) for faster retrieval of data or Quick access Maintain the unique key value identified pair for uniqueness data e.g. : Sample Java program import redis.clients.jedis.Jedis; public class UserService { private Jedis redisClient = new Jedis("localhost"); public String getUserProfile(String userId) { //Check if the user profile exist in the cache String cachedProfile = redisClient.get(userId);      if(cachedProfile != null) {          System.out.println("Cache found!");           return cachedProfile;   ...

API security is the single biggest challenge organizations want to see solved in the years ahead.  SECTION 1 What is a RESTful API? An Application Programming Interface (API) is a set of clearly defined methods of communication between various software components. A good API makes it easier to develop a computer program by providing all the building blocks. While the specifications vary between various APIs, the end goal is to provide value to the programmer through utilization of the services gained from using an API. REST (or REpresentational State Transfer) is an architectural style that evolved as Fielding wrote the HTTP/1.1 and URI specs and has proven to be well-suited for developing distributed hypermedia applications. While REST is more widely applicable, it is most commonly used within the context of communicating with services via HTTP. SECTION 2 Why Does Security Matter? Security aspects should be a serious consideration when designing and deploying a RESTful API. Organi...

REST Principles and Architectural Constraints REST stands for  Re presentational  S tate  T ransfer, a term coined by  Roy Fielding  in 2000. It is an  architecture style  for designing loosely coupled applications over HTTP, that is often used in the development of web services. REST does not enforce any rule regarding how it should be implemented at lower level, it just put high level design guidelines and leave you to think of your own implementation. Let’s start with standard design specific stuff to clear what ‘Roy Fielding’ wants us to build. Then we will discuss my thoughts, which will be more towards finer points while you design your RESTful APIs. Architectural Constraints REST defines  6 architectural constraints  which make any web service – a true RESTful API. 1.     Uniform interface 2.     Client–server 3.     Stateless 4.     Cacheable 5.   ...

What is SOAP? SOAP  is a protocol which was designed before REST and came into the picture. The main idea behind designing SOAP was to ensure that programs built on different platforms and programming languages could exchange data in an easy manner. SOAP stands for Simple Object Access Protocol. KEY DIFFERENCE SOAP stands for Simple Object Access Protocol whereas REST stands for Representational State Transfer. SOAP is a protocol whereas REST is an architectural pattern. SOAP uses service interfaces to expose its functionality to client applications while REST uses Uniform Service locators to access to the components on the hardware device. SOAP needs more bandwidth for its usage whereas REST doesn’t need much bandwidth. SOAP only works with XML formats whereas REST work with plain text, XML, HTML and JSON. SOAP cannot make use of REST whereas REST can make use of SOAP. Difference Between SOAP and REST Each technique has its own advantages and disadvantages. Hence, it's always...