Angular 14 ngx-json-viewer Example to Build JSON Viewer With Syntax Highlighter inside Browser Using TypeScript

Welcome folks today in this blog post we will be using the ngx-json-viewer library to build json doc viewer with syntax highlighting using typescript in browser. All the full source code of the application is shown below.

Get Started

In order to get started you need to make a new angular project using the below command as shown below

ng new sampleproject

cd sampleproject

And after that you need to install the below libraries using the below command as shown below

npm i ngx-json-viewer

And after that you will see the below directory structure of the angular app as shown below

And first of all you need to go to app.module.ts file inside your project and copy paste the below code to include the NgxJsonViewerModule inside the imports array as shown below

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { NgxJsonViewerModule } from 'ngx-json-viewer';


@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    NgxJsonViewerModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})

export class AppModule{}

import { BrowserModule } from '@angular/platform-browser';

import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';

import { NgxJsonViewerModule } from 'ngx-json-viewer';

@NgModule({

declarations: [

AppComponent

imports: [

BrowserModule,

NgxJsonViewerModule

providers: [],

bootstrap: [AppComponent]

})

export class AppModule{}

And now we need to go to app.component.html file and copy paste the following code

app.component.html

<ngx-json-viewer [json]="data" [depth]="3"></ngx-json-viewer>

1	<ngx-json-viewer [json]="data" [depth]="3"></ngx-json-viewer>

As you can see in the above html code we have the json parameter in which we are assigning the dynamic json object which will contain the data that we need to render inside the browser. And then we have the depth attribute for the json viewer.

And now we need to go to app.component.ts file and copy paste the below code

app.component.ts

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css'],
})
export class AppComponent {
  title = 'dsf';
  
  data = {
    countries:[
      "India",
      "New Zealand",
      "Australia",
      "England",
    ],
    users:['John','Latham'],
    address:{
      country:{
        value:"India",
        cities:['Delhi','Chennai'],
        pincodes:[11,23]
      }
    }
  }
}

import { Component } from '@angular/core';

@Component({

selector: 'app-root',

templateUrl: './app.component.html',

styleUrls: ['./app.component.css'],

})

export class AppComponent {

title = 'dsf';

data = {

countries:[

"India",

"New Zealand",

"Australia",

"England",

users:['John','Latham'],

address:{

country:{

value:"India",

cities:['Delhi','Chennai'],

pincodes:[11,23]

}

As you can see in the above typescript code we have defined the json object which contains various things such as nested objects and arrays and it is highlighted as shown below.