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Rust Web Programming

You're reading from   Rust Web Programming A hands-on guide to Rust for modern web development, with microservices and nanoservices

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Product type Paperback
Published in Nov 2025
Last Updated in Sep 2025
Publisher Packt
ISBN-13 9781835887769
Length 733 pages
Edition 3rd Edition
Languages
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Author (1):
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Maxwell Flitton Maxwell Flitton
Author Profile Icon Maxwell Flitton
Maxwell Flitton
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Table of Contents (14) Chapters Close

Rust Web Programming, Third Edition: A hands-on guide to Rust for modern web development, with microservices and nanoservices FREE CHAPTER
1 A Quick Introduction to Rust 2 Useful Rust Patterns for Web Programming 3 Designing Your Web Application in Rust 4 Async Rust 5 Handling HTTP Requests 6 Processing HTTP Requests 7 Displaying Content in the Browser 8 Injecting Rust in the Frontend with WASM 9 Data Persistence with PostgreSQL 10 Managing user sessions 11 Communicating Between Servers 12 Caching auth sessions 13 Observability through logging

Answers

  1. A String is a fixed-size reference stored in the stack that points to string-type data on the heap. A str is an immutable sequence of bytes stored somewhere in memory. Because the size of the str is unknown, it can only be handled by a pointer &str.
  2. Since we do not know the size of the string slice at compile time, we cannot allocate the correct amount of memory for it. Strings, on the other hand, have a fixed-size reference stored on the stack that points to the string slice on the heap. Because we know this fixed size of the string reference, we can allocate the correct amount of memory and pass it through to a function.
  3. We use the HashMap's get function. However, we must remember that the get function merely returns an Option struct. If we are confident that there is something there or we want the program to crash if nothing is found, we can directly unwrap it. However, if we don't want that, we can use a match statement and handle the Some and None output as...
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