In Go (also known as Golang), we can parse JSON data using the amazing package, which provides functions for encoding and decoding JSON data. Here's a step-by-step guide on how to parse JSON in Go: encoding/json Step 1 Create a struct that represents the structure of the JSON you want to parse. Every field in the struct should have a corresponding JSON field tag to map it to the JSON keys. type Person struct {
	Name  string `json:"name"`
	Age   int    `json:"age"`
	City  string `json:"city"`
	Email string `json:"email"`
} Step 2 Use the function package to parse the JSON data into your provided Go struct. json.Unmarshal() encoding/json err := json.Unmarshal(jsonData, &person) A Complete Example of How to Parse JSON in Go package main

import (
	"encoding/json"
	"fmt"
)

// Struct to represent the JSON data
type Person struct {
	Name  string `json:"name"`
	Age   int    `json:"age"`
	City  string `json:"city"`
	Email string `json:"email"`
}


// main function
func main() {
	// JSON data as a byte slice
	jsonData := []byte(`{
		"name": "Jimmy",
		"age": 28,
		"city": "New York",
		"email": "Jimmy@example.com"
	}`)

	// Create an instance of the struct to hold the parsed data
	var person Person

	// Parse the JSON data into the struct
	err := json.Unmarshal(jsonData, &person)
	if err != nil {
		fmt.Println("Error:", err)
		return
	}

	// Access the parsed data
	fmt.Println("Name:", person.Name)
	fmt.Println("Age:", person.Age)
	fmt.Println("City:", person.City)
	fmt.Println("Email:", person.Email)
} : If you're looking to parse, you can use an online . Online Tool to parse JSON data JSON Formatter In the above example, we defined a struct that represents the JSON data. Fields in the struct are tagged with the corresponding JSON keys. Then we use to perform parsing JSON data and assign it to variable. Person json.Unmarshal() person When parsing is done using the above approach, you can access individual properties of struct to work with JSON data, and make sure to handle errors properly where something goes wrong or provides JSON is not valid as per struct's structure. person Time Complexity of json.Unmarshal The function needs to iterate through each byte in the JSON data in order to be parsed. json.Unmarshal If we discuss the time complexity of , it is generally Where n is the size of the provided JSON data. json.Unmarshal O(n). Explore the package`s official documentation and more details about it on . encoding/json pkg.go.dev

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Golang - How to Parse JSON Data in Go

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