Get a local json file on NativeScript

nativescript file-system-example
nativescript download file
nativescript open file
nativescript get
nativescript file size
nativescript folder structure
consider using '--resolvejsonmodule' to import module with '.json' extension
nativescript save blob

How to get a local big json data?

I have tried this, but I had no success:

var sa = require("./shared/resources/sa.json");
var array = new observableArrayModule.ObservableArray(sa);

Use the file-system module to read the file and then parse it with JSON.parse():

var fs = require('file-system');

var documents = fs.knownFolders.currentApp();
var jsonFile = documents.getFile('shared/resources/sa.json');
var array;
var jsonData;

jsonFile.readText()
.then(function (content) {
    try {
        jsonData = JSON.parse(content);
        array = new observableArrayModule.ObservableArray(jsonData);
    } catch (err) {
        throw new Error('Could not parse JSON file');
    }
}, function (error) {
    throw new Error('Could not read JSON file');
});

Here's a real life example of how I'm doing it in a NativeScript app to read a 75kb/250 000 characters big JSON file.

Reading A Local JSON File With NativeScript · GitHub, That work is intended to be done by the file reader. It's pretty simple to read a local file and parse its contents as JSON. This is the TypeScript/Promise version of  The correct method – Create A New XMLHttpRequest. The clue here is the jQuery method $.getJSON() which is shorthand for $.ajax().It may seem an odd way requesting a local file in this way but it offers the most flexibility with least confusion.

TypeScript:

import {knownFolders} from "tns-core-modules/file-system";

export class Something {
    loadFile() {
        let appFolder = knownFolders.currentApp();
        let cfgFile = appFolder.getFile("config/config.json");
        console.log(cfgFile.readTextSync());
    }
}

Local JSON files in NativeScript with TypeScript's resolveJsonModule, parse. The headaches from using the file system can be avoided with the highly desired option called resolveJsonModule . The feature was  Reading local JSON files in Offline Angular Applications; Reading local JSON files in Angular 7 and Angular 6.1. Angular framework supports TypeScript 2.9 from 6.1 version onwards.In typescript 2.9 with the help of resolveJsonModule we can import local JSON files just like modules. I have added a sample JSON file in assets folder of Angular App.

As of TypeScript version 2.9.x and above (in NativeScript 5.x.x is using versions 3.1.1 and above) we can now use resovleJsonModule option for tsconfig.json. With this option, the JSON files can now be imported just as modules and the code is simpler to use, read and maintain.

For example, we can do:

import config from "./config.json";

console.log(config.count); // 42
console.log(config.env); // "debug"

All we need to do is to use TypeScript 2.9.x and above and enable the propety in tsconfig.json

// tsconfig.json
{
    "compilerOptions": {
        "module": "commonjs",
        "resolveJsonModule": true,
        "esModuleInterop": true
    }
}

A sample project demonstrating the above can be found here

Get a local json file on NativeScript - json - html, How to get a local big json data? I have tried this, but I had no success: var sa = require("./shared/resources/sa.json"); var array = new observableArrayModule. As of TypeScript version 2.9.x and above (in NativeScript 5.x.x is using versions 3.1.1 and above) we can now use resovleJsonModule option for tsconfig.json. With this option, the JSON files can now be imported just as modules and the code is simpler to use, read and maintain.

I just wanted to add one more thing, which might be even easier. You can simply write the content of your JSON file in a data.js file, or whatever name you would like to use, and export it as an array. Then you can just require the data.js module.

Reading a local JSON file from Angular/Nativescript, I have a local json file and trying to read from Http get method.The application throwing an exception on console(404). I have read if you use webpack the  However, you will need to import the NativeScript wrapper (NativeScriptHttpClientModule) to be able to work with the HttpClient module. Usage HTTP Get. Using the GET method by creating a service file to keep the HTTP logic separated from the component file (which does not need to know details on how you fetch the data). http-get.service.ts

File System, const documents = fileSystemModule.knownFolders.documents(); const folder = documents.getFolder(vm.get("folderName") || "testFolder"); const file = folder. Get data from local json file Under the logic.ts it will all your logic code, retrieving and getting data from local json file and send data to other pages so if you love to work with observables like me you'll need to create an interface file, that's why I'll create a folder inside the src/ folder and I'll name it interfaces/ and inside it I

Create an array from a local JSON file, Ho to get a local big json data? information about it, you can find here https://​docs.nativescript.org/ApiReference/file-system/HOW-TO.html . Http. The HTTP module provides a functionality, which allows submitting GET and POST requests for both platforms (iOS and Android). With its methods, we could request a data from a remote server and to represent the received response in different formats.

Pro Tip: With Angular 7 you can import json files directly into , getting them now, causing an extra unnecessary network request! All you have to do is find your central tsconfig.json file in the root of your proyect and add this  Hi, I need to log the entries of the user in a .txt file and save it in my local system through angular2. I have tried using fs module, but it doesn't workout. So can anyone help me with any example to create and write file thru angular2