Best JSON Mapping Tools to Buy in October 2025

2Pcs Fast Drawing Eyebrow Design Ruler Microblading Mapping Tool Shaping Permanent Makeup Drawing Guide Ruler Tattoo Supplies Reuse
- ACHIEVE PERFECT BROWS IN JUST ONE MINUTE-IDEAL FOR BUSY LIVES!
- CUSTOMIZABLE TEMPLATES ENSURE ACCURATE SHAPES FOR EVERY FACE.
- DURABLE, PORTABLE, AND NON-TOXIC FOR BEAUTY ON-THE-GO!



Frienda 5 Pieces Eyebrow Measuring Ruler Brow Mapping Tool Mini Vernier Caliper Double Scale Plastic Sliding Gauge Ruler for Micro Blading Eyebrow Tattoo Brow Artists(Bright Colors)
- PRECISE DUAL-SCALE DESIGN: MEASURE WITH EASE USING MM & INCHES.
- FIVE RULERS IN ONE SET: PERFECT FOR HOME, OFFICE, AND ON-THE-GO NEEDS.
- DURABLE & LIGHTWEIGHT MATERIAL: COMFORTABLE, SAFE, AND LONG-LASTING USE.



BRAWNA 1 Pc Brow Pro Measuring Tool - Double Scale Eyebrow Ruler for Microblading - Eyebrow Mapping - Caliper Vernier - PMU Supplies - Eyebrow Calipers Ruler Plastic- Pink
- ACHIEVE PERFECTLY SHAPED BROWS WITH PRECISION MEASUREMENTS!
- DURABLE AND COMFORTABLE: MADE FROM HIGH-QUALITY MATERIALS!
- VERSATILE TOOL: IDEAL FOR BROWS, CRAFTS, AND PRECISION NEEDS!



Eyebrow Mapping Kit, 4Pcs Eyebrow Microblading Marker Pens with 4 Replacement Refills and 2 Ruler, Eyebrow Makeup Position Mapping Mark Tools for Eyebrow Lip Skin
- COMPLETE BROW MAPPING KIT: 4 PENCILS, 4 CORES, 2 RULERS FOR ALL NEEDS.
- PRECISE, SILKY DESIGN FOR PERFECTLY SYMMETRICAL AND CLEAR EYEBROWS.
- WATERPROOF AND SMUDGE-PROOF FOR LONG-LASTING, FLAWLESS MAKEUP LOOKS.



Microblading Three Point Ruler – Pack of 2 Reusable Eyebrow Mapping Tools – Lightweight Precision Eyebrow Ruler for Symmetrical Brows – Eyebrow Measuring Tool for Microblading and Shaping
- PRECISE MEASUREMENTS FOR FLAWLESS, SYMMETRICAL EYEBROW MAPPING.
- LIGHTWEIGHT COMFORT FOR EFFORTLESS USE DURING MAPPING SESSIONS.
- CONVENIENT PACK OF 2 RULERS-PERFECT FOR HOME OR SALON USE!



Konohan 11 Pcs Eyebrow Mapping Kit Eyebrow Shaping Tools Eye Brow Measuring Ruler Double Scale Vernier Caliper 3 Point Positioning Ruler Golden Ratio Caliper Brow Trimming Knives(White)
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ALL-IN-ONE KIT: INCLUDES ESSENTIAL TOOLS FOR FLAWLESS EYEBROW DESIGN.
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USER-FRIENDLY: PERFECT FOR BEGINNERS AND PROS TO ACHIEVE PERFECT SHAPE.
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PRECISION FOCUSED: ENSURES SYMMETRY AND ENHANCES YOUR NATURAL BEAUTY.



PMU Products THE ORIGINAL Pre-Inked Microblading String for Brow Mapping - Measuring Tool for Marking Symmetrical Eyebrows (Pack of 1)
- SAVE TIME WITH PRE-INKED STRINGS: STRESS-FREE, MESS-FREE, GUESS-FREE!
- SURGICAL PRECISION: DURABLE, SAFE BAMBOO CHARCOAL FOR FINE BROWS!
- VERSATILE USE: IDEAL FOR ALL COSMETIC PROCEDURES AND BROW MAPPING!


To map each column of a JSON array in Kotlin, you can use the Gson library to parse the JSON string into a data class representing the structure of the JSON object. You can then iterate over the array and access each column by its corresponding property in the data class. Alternatively, you can use the kotlinx.serialization library to deserialize the JSON string into a Kotlin data class. Once you have the data class representing the JSON structure, you can easily access each column in the array using the properties of the data class.
How to serialize a JSON array in Kotlin?
To serialize a JSON array in Kotlin, you can use the Gson library. First, you need to add the Gson library to your project. You can do this by adding the following dependency in your build.gradle file:
implementation 'com.google.code.gson:gson:2.8.5'
Next, you can create a data class to represent the structure of your JSON array. For example:
data class Person(val name: String, val age: Int)
Then, you can create a list of Person objects and convert it to a JSON array using Gson:
val personList = listOf( Person("John", 30), Person("Jane", 25) )
val gson = Gson() val jsonArray = gson.toJsonTree(personList).asJsonArray
println(jsonArray)
This will print the JSON array representation of the list of Person objects.
What is JSON mapping in Kotlin?
JSON mapping in Kotlin refers to the process of converting a JSON string (or object) into a Kotlin data class or vice versa. This is often done using a library such as Gson or Moshi, which provide the necessary functionality to serialize and deserialize JSON data. By mapping JSON data to Kotlin data classes, developers can easily work with JSON data in a type-safe manner, making it easier to manipulate and use the data within their Kotlin code.
How to map JSON objects in Kotlin?
To map JSON objects in Kotlin, you can use libraries such as Gson or Jackson. Here's a simple example using Gson:
- Add Gson dependency to your app's build.gradle file:
dependencies { implementation 'com.google.code.gson:gson:2.8.8' }
- Create a data class that represents the structure of the JSON object:
data class Person(val name: String, val age: Int)
- Convert JSON string to Kotlin object using Gson:
import com.google.gson.Gson
fun main() { val json = """{"name": "John", "age": 30}""" val person = Gson().fromJson(json, Person::class.java) println("Name: ${person.name}, Age: ${person.age}") }
This will output:
Name: John, Age: 30
You can also convert Kotlin object to JSON string using Gson:
fun main() { val person = Person("Jane", 25) val json = Gson().toJson(person) println(json) }
This will output:
{"name":"Jane","age":25}
This is just a basic example, but Gson and Jackson provide many more features for mapping JSON objects and handling different data structures. You can refer to their official documentation for more information on how to use them.