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What Is Backend Development?
Building the server logic, data, and APIs behind apps.
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AiTechWorlds
AiTechWorlds
Backend development builds the server-side logic, databases, and APIs that power applications. This visual guide covers servers, databases, REST APIs, authentication, caching, and how the backend serves data to the frontend.
Building the server logic, data, and APIs behind apps.
Frontend is seen; backend powers it.
A computer that responds to requests.
Clients ask; servers answer.
Node.js, Python, Java, Go, and more.
Lets clients request and send data.
Resource-based endpoints over HTTP.
Store users, posts, and app data.
Structured tables vs flexible documents.
Create, read, update, delete data.
Verify who a user is.
Control what users can do.
Keep users logged in securely.
Speed up responses with stored data.
Manage secrets and settings safely.
Return clear, safe error responses.
Track health and debug issues.
Handle more users with load balancing.
Validate input and protect data.
Build a small REST API with a database.
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