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Month: October 2021

OWASP Top 10 Vulnerabilities and its mitigations

Cyber Security, Java, Node.js / October 27, 2021 / TopCode / 1

Introduction: There is no one-size-fits-all answer to information security, but understanding the most common threats is a good place to start. The Open Web Application Security Project (OWASP) releases an annual report identifying the Top 10 vulnerabilities found in web applications. This year’s report covers dangers such as injection flaws, broken authentication and session management,

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How to append to a file in Node.js?

Node.js / October 15, 2021 / TopCode / 0

Introduction: In this blog post, We will learn how to append contents to the end of the file instead of overwriting the file’s content. Sometimes it is necessary to keep the previous content of a file for debugging purposes. For example, if you are logging into a file then in this case you don’t want

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Remote Code Injection in Node.js

Node.js / October 14, 2021 / TopCode / 0

Remote code injection is a type of attack that allows an attacker to inject malicious code into a web application while it is running. This code can be used to manipulate data, steal confidential information, or gain access to sensitive areas of the application. It is one of the most dangerous security vulnerabilities and can

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Monkey Patching in Node.js? Update code at runtime in Node.js

Node.js / October 12, 2021 / TopCode / 1

Introduction In this blog post, we will look at what Monkey patching is, what are the pros and cons of it, and also an example that illustrates this technique. What is Monkey patching? Monkey patching is a technique for dynamic modification of any module or function. By using Monkey patching one can add or modify

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How to build web server in Node.js? Node.js HTTP module

Node.js / October 5, 2021 / TopCode / 0

Introduction: When you view a website in your browser, you are making a request to another computer on the internet, which then provides you a webpage as a response. That computer which is serving your requests is a Web Server. A web server receives HTTP requests from a client and provides an HTTP response. Building

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Express Middleware: What and how to create middleware

Node.js / October 3, 2021 / TopCode / 0

Introduction: The Express middleware is a powerful tool for creating web applications in Node.js. It allows developers to quickly and easily add functionality to their applications by using a variety of pre-built functions. In this blog post, we will explore Express middleware and look at how to create custom middleware functions. Middleware is a function

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