What is it, how does it work, request examples

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Every day people use online services, buy goods in online stores, register in bonus systems and work with API. Program interfaces are an integral part of business. The capitalization of companies that have implemented API has grown by more than 12% in four years compared to enterprises without this technology. At the same time, 36% of e-commerce companies indicated that API is a strategic asset that creates value for business.

What is API
API is a set of methods and rules, according to which services and programs work with each other and transmit information to fulfill requests. Interaction is carried out using functions, classes, structures and protocols.

Example of interface operation
The client pays for the ride ticket with a bank card. At the Jordan Phone Number List time of purchase, the trading terminal accesses the banking API and sends a payment request. The service checks the account status and writes off the money automatically. Human participation in the process is minimized.

An API can be compared to a contract between a client and a seller. Only in the context of our topic, the client is an application that needs information, and the seller is a service that has the necessary information. The API regulates what and how will be transferred between both parties.

What is REST API
REST API is an architectural approach that sets some restrictions on the interface and defines the functionality of the software product. Sometimes developers use the term RESTful. The peculiarity of the approach is the unification of the API operation principle. It allows to simplify development and increase productivity.