What is a REST API Gateway
Introduction
REST API Gateway sits in front of a database and provides a REST API interface. This service acts as an intermediary between clients (like a web or mobile application) and your (SQL Server, Oracle or Sybase) database, and often includes additional features for security, scaling, and management. The service accepts HTTP requests (following the REST principles), performs necessary operations such as authentication and business logic, and then communicates with the database to fulfill the request. The results are then sent back to the client in the form of HTTP responses, often formatted as JSON or XML.
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REST API Gateway is beneficial for a number of reasons:
Decoupling
By providing a separate layer between the client and the database, you can change the underlying database or its structure without impacting the client.
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You can implement security features like authentication and authorization at the API layer, preventing direct access to the database.
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The API service can also validate incoming data before it is written to the database, protecting against incorrect or malicious inputs.
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Complex database operations can be encapsulated in simpler API endpoints, which can be more easily understood and used by client developers.
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