Ethereum: Binance API. Duplicate values for parameter ‘symbols’

Ethereum API Error: Duplicate values ​​for ‘symbols’ parameters The Ethereum API error occurs when a specific parameter, in this case symbols, has duplicate values. This can happen if you are trying to retrieve prices for multiple symbols at once using the same API endpoint. Cause: There are several reasons why your code might encounter this […]

Metamask: Using metamask to sign ERC20 approvals

Using Metamask for Secure Smart Contract Interactions As a developer building a frontend UI and NodeJS backend with Web3.js, you’re likely familiar with the importance of secure interactions between your application and the Ethereum blockchain. One often overlooked aspect of this process is the use of MetaMask, a popular browser extension that allows users to […]

Metamask: Metamask sees contract address as personal address

Here is the article: MetaMask: Warning – Contract Address as Personal Address As many users of MetaMask, a popular Ethereum browser extension, have discovered, I wanted to share my experience when I accidentally transferred NFT from a wallet address to a contract address. While this may seem like a minor issue at first glance, it […]

Metamask: How to get free ether

Getting Free Ether in Metamask: A Beginner’s Guide As an aspiring Ethereum developer, you’re likely eager to start building your own projects on the Ethereum blockchain. However, one of the biggest hurdles you may face is getting started with MetaMask, the popular Ethereum wallet. One common issue beginners experience is that their MetaMask wallet isn’t […]

Ethereum: REST API vs Websocket for device purchase

How ​​to Choose Between REST APIs and WebSocket for Purchasing Assets: A Comparison As an e-commerce platform owner looking to integrate cryptocurrency purchasing functionality into your application, you may have considered using either a Rest API or a WebSocket-based solution. While both options offer advantages, they serve different use cases and trade-offs between speed, reliability, […]

Metamask: Performing operations directly from React vs. performing operations from Nodejs Backend.

Directly Transacting with Blockchain in a React Application: The Case for Making Transactions from Node.js As blockchain developers, we’re constantly exploring ways to simplify the development process while still leveraging the unique benefits of each technology stack. Recently, I’ve been learning about Metamask and its role in facilitating direct transaction processing within a React application. […]

The Future of RegTech: The Impact of AI on Cryptocurrency Compliance

The Future of RegTech: AI’s Impact on Crypto Compliance As the world becomes increasingly digital, regulatory requirements are evolving to keep up with technological advances. One area of  concern is compliance, particularly in cryptocurrency trading. With the rise of decentralized finance (DeFi) and blockchain technology, regulators are struggling to keep up. In this article, we look […]

Ethereum: Merkle tree structure for 9 transactions

Ethereum: Understanding the Merkle Tree Structure As the second largest cryptocurrency by market capitalization, Ethereum has sparked a lot of questions and discussions among developers, enthusiasts, and even newcomers to the world of blockchain technology. One aspect that often sparks curiosity is the underlying architecture of Ethereum, specifically the use of the Merkle tree structure […]

Metamask: Where do I find my public key in Metamask?

About your public key on MetaMask When using MetaMask, a popular cryptocurrency wallet for Ethereum, finding your public key is a crucial step in managing and transferring funds. However, some users may wonder where to find their public key in the first place. What is a public key? A public key is a unique string […]

Ethereum: Can I use my wallet on different computers?

Ethereum Wallet Compatibility: Using Your Wallet Across Multiple Computers As a frequent user of multiple devices and apps, you’re probably familiar with the concept of syncing your data across multiple machines. This is a common practice, especially with cloud storage services like SVN, Dropbox, or SSH (Unison). However, you may be wondering if this process […]