2024-10-21
4094
#node
Geshan Manandhar
34779
Oct 21, 2024 ⋅ 14 min read

Build a REST API with Node.js, Express, and MySQL

Geshan Manandhar Geshan is a seasoned software engineer with more than a decade of software engineering experience. He has a keen interest in REST architecture, microservices, and cloud computing. He also blogs at geshan.com.np.

Recent posts:

i tried kiro and here is what i learned

I tried out Kiro: Here’s what I learned

Check out Kiro, AWS’s AI-powered IDE, see what makes it different from other AI coding tools, and explore whether it lives up to the hype.

Elijah Asaolu
Aug 28, 2025 ⋅ 5 min read
Go Design Pattern Article Image With Logo

Why Go design patterns still matter

Here’s how three design patterns solved our Go microservices scaling problems without sacrificing simplicity.

Peter Aideloje
Aug 28, 2025 ⋅ 2 min read
how to protect your ai agent from prompt injection attacks

How to protect your AI agent from prompt injection attacks

Explore six principled design patterns (with real-world examples) to help you protect your LLM agents from prompt injection attacks.

Rosario De Chiara
Aug 27, 2025 ⋅ 5 min read
Don’t Let AI Erase The Next Generation Of Dev Leaders

Don’t let AI erase the next generation of dev leaders

As AI tools take over more routine coding work, some companies are cutting early-career dev roles — a short-sighted move that could quietly erode the next generation of tech leaders if we aren’t careful.

Jack Herrington
Aug 26, 2025 ⋅ 6 min read
View all posts

22 Replies to "Build a REST API with Node.js, Express, and MySQL"

  1. async function create(newwSession){

    const result = await db.query(

    `INSERT INTO newsession
    (req_datettime )
    VALUES
    (? )`,
    [
    newwSession.req_datettime
    ]
    );
    can you please guide what i am missing i have created a new router and its says “message”: “Bind parameters must not contain undefined. To pass SQL NULL specify JS null”

    1. Found out that with MySQL 8.0.22+ the args need to be passed as a string. Changing the line in programmingLanguages.js from:

      `SELECT id, name, released_year, githut_rank, pypl_rank, tiobe_rank
      FROM programming_languages LIMIT ?,?`,
      [offset, config.listPerPage]

      to:

      `SELECT id, name, released_year, githut_rank, pypl_rank, tiobe_rank
      FROM programming_languages LIMIT ?,?`,
      [offset + “”, config.listPerPage + “”]

      Corrected this error.

  2. Hi, I am calling the API using axios in my react project but its showing 500 internal server error, I can’t figure why. Please Help

  3. Hello, Thank you so much for this perfect Tutorial ! I just have a question on get parts. I make a query to have some post with comments. But in the result I have one object for each comments (for all informations post +comment) . I would like to have the result like a tree. So 1 object per post which includes the 1 list of comments. Do you know how can I do ?

  4. When you are trying to do a POST request then the parameters that are strings needs to be wrapped with “”.

    So ${programmingLanguage.name} should be “${programmingLanguage.name}” 😊

    1. Thank you, I was getting an error while doing the POST request because of that: “Unknown column ‘dart’ in ‘field list'”. If anyone else encounters the same error, this is the reason why.

  5. Thank you for the tutorial. When creating the connection to de db, you commented “don’t expose password or any sensitive info”. Does that mean that there is another way to set the password for this connection? Could you please share how else to do it? Thanks very much.

  6. This tutorial is awesome, really assisted me to piece together something I needed to train on and I have never created my own API setup before, I always use mysql and nodejs for my own projects so this is the cherry for me, thanks a bunch, appreciated.

Leave a Reply