Securing your Rest API application with Typescript | CodeSignal Learn

intermediate

Securing your Rest API application with Typescript

Application Security

4 courses

51 practices

7 hours

Learning Security Basics with TypeScript is a hands-on course path for aspiring Application Security Engineers. You’ll learn to identify, exploit, and defend against common web security threats using TypeScript and modern web frameworks.

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Earn a shareable

Certificate of Achievement

Verified skills you'll gain

DEVELOPING

Security Architecture and Threat Modeling

DEVELOPING

Vulnerability Management and Remediation

INTERMEDIATE

API and Web Services Security

Tools you'll use

Express.js

TypeScript

Trusted by learners working at top companies

Course 1

Implementing Rate Limiting

4 lessons

13 practices

Learn to secure your TypeScript REST API by implementing rate limiting, request throttling, CORS configuration, and robust refresh token management to prevent abuse and enhance application security.

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Course 2

Throttling API Requests

4 lessons

13 practices

Throttling manages high request volumes by slowing down requests instead of blocking them. Unlike rate limiting, which rejects excess requests, throttling adds delays when thresholds are exceeded. This keeps your API responsive and stable during traffic spikes.

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Course 3

Enabling & Customizing CORS in Your TypeScript REST API

4 lessons

10 practices

Modern web apps often need to fetch resources from different domains. **CORS** defines how servers declare which origins can make requests. By default, browsers block cross-origin requests, so you'll configure your Express server to respond with the necessary headers.

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Course 4

Preventing Refresh Token Abuse in Your TypeScript REST API

4 lessons

15 practices

Modern web applications frequently rely on **refresh tokens** to seamlessly re-authenticate users without forcing them to log in repeatedly. While convenient, **mishandling refresh tokens** can grant attackers near-permanent access.

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