Build A Complete JSON API In Golang in 2023
Welcome to this tutorial on building a complete JSON API in Golang that includes CRUD operation. In this video, we'll walk through the steps of creating a robust API using the Go programming language. We'll leverage the power of Golang's standard library and the Gorilla Mux package to handle HTTP routing and JSON encoding. So, let's get started!
Table of Contents:
Setting up the Project
Defining the Data Structures
Creating the Routes
Implementing CRUD Operations
Handling JSON Encoding and Decoding
Testing the API on POSTMAN
Conclusion
Section 1: Setting up the Project
To begin, we'll set up a new Go module and initialize the necessary dependencies. We'll also create the main entry point for our application.
Section 2: Defining the Data Structures
In this section, we'll define the data structures that our API will work with. We'll create structs to represent the objects we'll be storing and manipulating, such as users, products, or any other entity relevant to your application.
Section 3: Creating the Routes
Using the Gorilla Mux package, we'll define the routes for our API. We'll map each endpoint to the corresponding handler function, which will handle incoming requests and return appropriate responses.
Section 4: Implementing CRUD Operations
Now, we'll implement the CRUD (Create, Read, Update, Delete) operations for our API. We'll create functions to handle each operation for our data structures, interacting with a storage mechanism, such as an in-memory slice or a database.
Section 5: Handling JSON Encoding and Decoding
To work with JSON data, we'll need to encode our response data into JSON format and decode incoming JSON payloads into Go structs. We'll explore how to use the encoding/json package to achieve this seamlessly.
Section 6: Testing the API
Testing is a crucial part of building a reliable API. In this section, we'll cover unit testing for our API endpoints. We'll use the built-in testing package in Go to write test cases and ensure that our API functions as expected.
Section 7: Conclusion
In conclusion, we have successfully built a complete JSON API in Golang. We covered setting up the project, defining data structures, creating routes, implementing CRUD operations, handling JSON encoding and decoding, and testing the API. By following along with this tutorial, you should have a solid foundation for building your own JSON API using Golang.
Thank you for watching this tutorial. I hope you found it informative and useful. If you have any questions or suggestions, please leave a comment below. Happy coding!
Timecodes
0:00 - Introduction and Demo of the final results
4:19 - Building and creating the structure of the project
5:47 - Create a Hello World Application using Golang
9:06 - Create a User model and its functions
14:46 - Create the Server and all it's routes and functions
24:07 - Create a GetUsers in golang to retrieve all users in json format
25:48 - Run the server for the first time and debug
28:16 - Open Postman and test the get users endpoint
29:49 - Create GetUserByID function
34:49 - Restart the app and open postman to test the endpoint
35:34 - Create DeleteUser function
38:52 - Restart the app and test delete endpoint and debug
40:45 - Create UpdateUser function
45:25 - Create PostUser or CreateUser function
47:11 - Open Postman and test edit and create functions and debug
52:57 - Conclusion and thank you for watching
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