Merkle trees are a fundamental component in many blockchain and cryptographic systems. They allow for efficient and secure verification of large datasets. In this article, we’ll walk through how to build a Merkle tree in Rust, step-by-step, and provide the complete code at the end. Understanding the Process Here’s how the construction of a Merkle […]
In cryptography and computer science, a hash tree or Merkle tree is a tree in which every “leaf” node is labelled with the cryptographic hash of a data block, and every node that is not a leaf (called a branch, inner node, or inode) is labelled with the cryptographic hash of the labels of its […]
When working with Rust, you’ll often encounter scenarios where you need to interact with slices. Two common approaches for converting data structures to slices are using .as_slice() and the &[ ] syntax. While both can often achieve the same result, there are subtle differences in intent, safety, and compatibility that make each appropriate for different […]
Understanding UTXO References in Transactions with Rust: A Practical Guide In blockchain and cryptocurrency systems, UTXO (Unspent Transaction Output) is a critical concept. Transactions consume UTXOs from previous transactions and create new ones for future use. This tutorial will guide you through using Rust to search for transactions referencing specific UTXOs using efficient data structures […]
No SQL, no hunting through Stack Overflow for the syntax you forgot—just type in what you want, and let the LLM handle your query. We’ll use LangChain to hook up to a MySQL database with ChatGPT doing the heavy lifting. Here’s the setup: I’ve got a MySQL database full of employee data—names, hire dates, that […]
Let’s assume we have a list of numbers, and we want to transform them into a list of structs: into_iter(): Consumes the original collection, turning it into an iterator. enumerate(): Adds an index (id) to each item. map(): Applies a closure to transform each item. collect(): Gathers the transformed items into a collection (e.g., Vec). […]
Comparison: impl Fn vs Box<dyn Fn> 1. Using impl Fn (Static Dispatch) Explanation: 2. Using Box<dyn Fn> (Dynamic Dispatch) Explanation: Key Differences: Feature impl Fn (Static Dispatch) Box<dyn Fn> (Dynamic Dispatch) Dispatch Type Compile-time (Static Dispatch) Run-time (Dynamic Dispatch) Performance Faster (No heap allocation) Slower (Heap allocation + Indirection) Flexibility Less flexible (Fixed closure type) […]
While most examples for performing embeddings will be Python code, Rust is better when performance, safety, and scalability are critical. Most examples/tutorials stick to Python, maybe it’s easier to start with but let’s look beyond “getting started”. Let’s explore Qdrant some more, this time we’ll delve into the Rust client plus fastembed. (Note: If you […]
Tokio is an asynchronous runtime for Rust. “It provides the building blocks needed for writing network applications.” – It’s pretty much the de-facto standard for Rust! Before we look at “spawn” let’s review what tokio is, how to use it, and look at what tasks are. tokio::main The #[tokio::main] function is a macro. It transforms […]
TL;DR – use the “R” in RwLock as “R” for READ – i.e when there are lots of reads/Read mostly, use RwLock Choosing between a Mutex and an RwLock in Rust depends on the nature of the access patterns and the trade-offs you’re willing to make in your program’s concurrency model. Here’s a detailed breakdown […]
