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slice in Rust
December 19, 2024 / Last updated : December 19, 2024 admin Rust Programming

Understanding .as_slice() vs &[ ] in Rust

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 […]

A UTXO represents an output of a transaction that has not yet been spent
December 16, 2024 / Last updated : December 16, 2024 admin Bitcoin Programming

UTXO References in Transactions with Rust

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 […]

NLO2SQL
December 9, 2024 / Last updated : December 12, 2024 admin AI ML

Querying a database directly with natural language

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 […]

Transforming and Collecting into a Vector
December 6, 2024 / Last updated : December 6, 2024 admin Rust Programming

Transforming and Collecting into a Vector

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). […]

December 2, 2024 / Last updated : December 2, 2024 admin Rust Programming

Closures in Rust: Static vs. Dynamic Dispatch with impl Fn and Box

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) […]

Rust & Qdrant
November 28, 2024 / Last updated : December 4, 2024 admin AI ML

Qdrant & Rust – embeddings

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
November 26, 2024 / Last updated : November 27, 2024 admin Rust Programming

tokio::spawn

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 […]

Many threads and primarily read-heavy operations? RwLock minimizes contention by allowing multiple threads to read in parallel.
November 25, 2024 / Last updated : November 26, 2024 admin Rust Programming

When or why should I use a Mutex over an RwLock?

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 […]

upsert
November 21, 2024 / Last updated : November 26, 2024 admin Rust Programming

Displaying Secret Data in Binary Format (Rust Code)

In this article, we will explore how to format and display byte data in Rust. Specifically, we’ll focus on a simple program that formats a secret (a Vec<u8>, or vector of bytes) as a binary string. Understanding the Code Here is the Rust code that we will break down: 1. Defining the Struct In this […]

bitwise in rust
November 21, 2024 / Last updated : November 21, 2024 admin Rust Programming

Bitwise operations – Combining 1D Arrays into 4-Byte Variables in Rust

Bitwise operations When working with data processing in Rust, there are times you may need to efficiently combine elements from an array into a single variable. This tutorial explains how to take four elements from a 1D array of bytes (u8) at a time and pack them into a single 4-byte variable (u32). This approach […]

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