HttpURLConnection example: We are going to send get or post request to URLs used in restful web services CRUD example, so instead of using PostMan , we will send request using java. Java JSON library tour - In this series of Java JSON tutorials, we focus on three popular third party Java libraries to process JSON data, which are Jackson, Google Gson and JSON. Store HTML Table Values in a Javascript Array and Send to a PHP Script Using jQuery and Ajax for web design and development I want to save html table data into. send(); The last bit of this section involves waiting for the response to return from the server, then dealing with it. Firebase Node. Recently I was tasked with reading a JavaScript Object Notation (JSON) file using Java. These properties make JSON an ideal data-interchange language. npm install -g json-server. stringify(data) and post JSON instead. Communication between android application and server is one of the most common requirements. JSON is also sometimes used in desktop and server-side programming environments. Instead, we will use curl. Django JsonResponse. send Here's the final code. I have a program in retrieving data from a HTML page with Javascript using Java. Why java api not allow this and how can i solse this problem?. MVC is a design pattern used to decouple user-interface (view), data (model), and application logic (controller). Download JAR file json-rpc-1. The official Internet media type for JSON is application/json. Previous Tutorials: Java MySQL Insert Record using Jquery. The payload is composed using the two input parameters passed into the procedure. I'm using json-simple in Java and I have created the following json structure: Have you considered using a database. JSON stands for "JavaScript Object Notation" and is pronounced "Jason" (like in the Friday the 13th movies). It is very. Spark SQL is developed as part of Apache Spark. For this we will use Symfony's Form, and Doctrine. How to Use JSON Data Fields in MySQL Databases (PostgreSQL supported JSON before version 9. To quickly and easily display JSON is a key feature in my development day and JSONView for all its simplicity fits that bill for me. send(); The last bit of this section involves waiting for the response to return from the server, then dealing with it. Create an API gateway and developer portal in minutes Use Azure API Management as a turnkey solution for publishing APIs to external and internal customers. Example 1 of Simple JSON Parsing In Android Studio: Step 3 : Now open app -> java -> package -> MainActivity. The Java API for JSON Processing provides portable APIs to parse, generate, transform, and query JSON. 4 and any database will accept JSON documents as a single string blob. And then we can easily add it to a json field. Example 5 (using ActiveX and a web page): Writing a file using JavaScript. By flexible I mean to get JSON , XML data from the server. Download source - 458. The simplest example is having the data within a relational database management system (RDBMS), using something like Java Database Connectivity (JDBC) to access the data. Set it up! Use Elixir's package manager to set up a new Phoenix app. *) or anything. The response of this function is not text, we are now replying with JSON data, which Flask's jsonify function generates for us from our data structure. Why java api not allow this and how can i solse this problem?. When data is written, it is written to this local version first. Authentication is one of the essential part of every application. API is very useful when applications need to send or receive data. * Experience in Web Services. A Chart Tools Datasource exposes a URL, called a Datasource URL, to which a chart can send HTTP GET requests. Loggly will automatically parse many types of data for you including Apache, Nginx, JSON, and more. JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write. AWS APIs are data-oriented in both the "send data, get data back" sense, and the fact that all of the operations and data structures for every service are, themselves, described in data which. How to convert Java object to JSON string? This page shows how to convert java object to JSON string using Jackson's data binding. 2010 to 2014). com/codeglympse Subscribe. The only difference is how you process it in the server. To send the data to the server, first we need to prepare an object. The requests and responses will be in JSON as both parties understand this format. Definition from WhatIs. To export data for import into Cloud SQL, see Exporting Data for Import into Cloud SQL. I have my URL that will give me a JSON string by fetching values from MySQL database. 25 January 2011. how to send json data to server using ajax. Before you start with encoding and decoding JSON using Java, you need to install any of the JSON modules available. Make sure "AjaxControlToolkit. Please help me on this. In this tutorial I will show you how to create a Restful JSON based API for Android application using ASP. MongoDB is a database, but it’s a NoSQL database, so there’s no need for SQL at all!. It stands for JavaScript Object Notation 2. In this tutorial I will show you how to create a Restful JSON based API for Android application using ASP. JSON is a lightweight data-interchange format. Note: Refer How to read Json data using JsonReader? page for dependent libraries. Once we retrieve the JSON data, we parse it with the json library and do a few checks to make sure that we received good data and then extract the information that we are looking for. jQuery is not the only tool for manipulating and interfacing with JSON; it’s just my and many others’ preferred method. In this tutorial I want to explain the same but in a easy & robust way using volley library. Derek said on March 30, 2010 at 6:23 am. Oracle recommends that you always use an is_json check constraint to ensure that column values are valid JSON instances (see Example 4-1 ). My previous article Android JSON Parsing Tutorial explains parsing json in a simple manner which got very good feedback and good ranking in search engines. temperature raul. PostgreSQL supports native JSON data type since version 9. Using JDBC you can create a connection to the database, issue database queries and updates and receive the results. Javascript when used with ADO* and SQL can read write from data sources such as a file, Excel or an Access database. Add this to the HTML Skeleton in HEAD section. OData (Open Data Protocol) is an ISO/IEC approved, OASIS standard that defines a set of best practices for building and consuming RESTful APIs. Jul 27, 2016 so you don’t need to serialize the data before returning the response object. Date and the serializer should know what to do, given the right setup. But created very simple Java program which read JSON data from file and sends it to REST service. the second is put JSON into database. The PHP file will write and read to the MySQL database based on requests received from the application. In this tutorial, I will teach you how to get data from database in JSON format using Ajax and PHP. This article describes a Java EE 7 web application that exposes a REST service that handles HTTP POST requests with JSON payload. With jOOQ, you could produce a similar JSON list from your database: String json = create. databind package to save POJO to database and we will use spring-data JPA. So the response we are getting from the above URL is a JSON Array []. I'm not Java expert so it took a while for me to write a simple java code to insert data. This provides an easy method of adding additional, static, parameters to the data to be sent to the server. XML documents can contain any imaginable data type - from classical data like text and numbers, or multimedia objects such as sounds, to active formats like Java applets or ActiveX components. SQL Server provides a hybrid model for storing and processing both relational and JSON data by using standard Transact-SQL language. 4 and any database will accept JSON documents as a single string blob. In this article first of all I will put light on the introduction of JSON and then explain how to insert JSON data present in JSON file to a database and then the vice versa of the same i. In this post, we will focus on fetching data from MySQL as well. Connect to the database. Then, we can verify that our request is successful by going to this page. Sending user input (which can contain unknown characters), POST is more robust and secure than GET. Here, you can learn how to create a basic JSON API using. To do that, we need to retrieve the data the PHP script has. Note that in the above code I use a LINQ query to retrieve the CategoryID, CategoryName, and Description fields form all of the categories in the database. However, writing comprehensive and fast unit tests for these APIs has been troublesome. *) or anything. Setup a private space for you and your coworkers to ask questions and share information. To show how JSON works in a real-world example, let’s load photos from Flickr using jQuery and the JSON version of Flickr’s “Latest” photo feed. One of the clients of OmniTI requested help to provide sample application to insert JSON data into Postgres using Java JDBC driver. Now say we like fuzzy kittens and want to record every kitten we ever meet in MongoDB. Building a secure REST API with Spring Data REST and Java 8. What if I continue to have problems signing in? Submit a Web site feedback form to give us specific details on what page you're trying to sign in to and what browser and version you're using. JSON is a data format. Using the mysqli library is a step ahead from the (soon to be absolutely deprecated) mysql one, and you can and should make use of prepared statements as they will offer a convenient layer for evading SQL injection attacks (without deeply elaborating on this, this is the practice of inserting malicious code snippets into database queries which. This question already has an answer here: How to use dot operator to append some string directly to another in Java script ?. JSON files are lightweight, text-based, human-readable, and can be edited using a text editor. js and Java clients maintain their own internal version of any active data. To read the JSON and write it to a database we are going to use a command line runner. Read How to configure and access MySQL using the Stanford Web Application Toolkit for more information about accessing MySQL through the toolkit. Here is the input json file:. Database: To get data out of a database, provide a transport and use a credential-based API. If your data changes often (like currency data does), you can put the above steps into a script and run it on a schedule. Summary: in this tutorial, you will learn how to use MySQL JSON data type to store JSON documents in the database. ajax() method in jQuery you can get JSON data from a file and set in the HTML element. Read Write to File, Excel Workbook, Access using Javascript and SQL. In this example, let us create a chart for gender wise pass percentage in an exam ( pass percentage of boys vs girls) since last 5 years (i. Both of these situations benefit from having a large body of data that is semi-coherent (so you can kind of inspect it) but that is automatically generated. Since this technique relies on the use of ADO, a bit about ADO before we begin to help you understand how this works. Listing and Filtering Your Resources. it's the most popular way for web APIs to send and receive data. While each document-oriented database implementation differs on the details of this definition, in general, they all assume documents encapsulate and encode data (or information) in some standard format or encoding. JSON objects are easy to read and write and most of the technologies provide support for JSON objects. Instead, we will use curl. Consuming hierarchical JSON documents in SQL Server using OpenJSON (Sept 2017) Importing JSON data from Web Services and Applications into SQL Server(October 2017) One of the surprises that I got from writing for Simple-Talk was the popularity of my article Consuming JSON Strings in SQL Server. please share the code that you've tried. Jackson aims to be the best possible combination of fast, correct, lightweight, and ergonomic for developers In this example we will send json as a input, and the json request will be mapped to Order object. 3 KB; Introduction. JSON is very popular and currently the most commonly used data exchange format. And last but not least you will have an android app to display data from Mysql database after making proper connection. What I want now is to "send" this data to the each form element and to prefill them before sending/saving form (in final version there will be also a number of editboxes that are not covered by info obtained from JSON and that I may manually write in form). When exchanging data between a browser and a server, the data can only be text. In this tutorial, let us see the steps how to create bar chart with JavaScript charts (Highcharts) using JSON data generated using servlet in eclipse. All users have a unique ID number, which we will send as part of the request to this URL. Net framework for serializing data into JSON format. that finally worked I never wanted to use JSON to begin with, but when I looked this up, most solutions suggested you had to use JSON. Recently I was tasked with reading a JavaScript Object Notation (JSON) file using Java. One method is the use of temp tables. Create a new request and call it Create User:. REST JSON Web Services. JSON is a light-weight text based format for data exchange. That's all on How to convert JSON String to Java object using Jackson library. I am using the same method you mentioned above, Can you tell me how to invoke the URL in JSON data in dynamic way, since the uri will change for each build. For dynamically calculated values, use ajax. It can capture, transform, and load streaming data into Amazon S3, Amazon Redshift, Amazon Elasticsearch Service, and Splunk, enabling near real-time analytics with existing business intelligence tools and dashboards you’re already using today. Auto update feature. JsonParser is the jackson json streaming API to read json data, we are using it to read data from the file and then parseJSON() method is used to loop through the tokens and process them to create our java object. Converting JSON to/from Java Objects using JACKSON API Created on: June 27, 2015 | Last updated on: September 30, 2017 websystiqueadmin This post explains Jackson data-binding , which is a common approach when dealing with JSON using Jackson API in your Java projects. How to create Json Array using Object Model? This page shows how to create Json array using Object Model. First, create a sample file: IStorageFolder folder = ApplicationData. JSON basics From the course He then shows how to create and document structured data using JSON and then XML. This page describes ways you can use the JSON API to upload objects to Cloud Storage. Convert JavaScript Object to JSON String. Is it wise to store a big lump of json on a database row? No, generally it is a bad idea to store multi-valued data in one cell of a relational database because it goes against the basic structure/rules of RDBMS (as mentioned in the other answer). Before you start with encoding and decoding JSON using Java, you need to install any of the JSON modules available. NET DataTable to a JSON String in C#. Next, this collection of data is converted into JSON by calling the ToJson method. the second is put JSON into database. JSON is lightweight and language independent and that is why its commonly used with jQuery Ajax for transferring data. JSON is a lightweight data-interchange format. How to read Json array data using JsonArray? This page shows how to read Json array data using JsonArray object. Yes, JSON Generator can JSONP:) Supported HTTP methods are: GET, POST, PUT, OPTIONS. 1) Launch Visual Studio 2010. Perhaps the best way to understand the JSON interface is to see it in action. Oracle recommends that you always use an is_json check constraint to ensure that column values are valid JSON instances (see Example 4-1 ). , Android Web Service Tutorials In Android Tutorial Blog , we are writing lot on how to use Web Service in Android applications. net and php, using xml and json, asynchronous request handling, ajax example with database and a lot of ajax topics. Net MVC Razor. The data to be used for drawing a pie chart in our canvas is stored in the file data/chartdata. An object is an unordered collection of zero or more name/value pairs. How do I get data from a database using JSON? to send data to database or server or to get data from database or server , you need a webservice. If your data is in a file hosted on the same domain as your Maps JavaScript API application, you can load it using the map. Php Script that will run on server and fetch the data from MySql database. formatJSON(); The JSON String would look like this:. The open-source hibernate-types project allows you to map Java objects or Jackson JsonNode as JPA or Hibernate entity properties, and, thanks to our awesome contributors, we have added support for storing type-safe JSON collections. Using data from JSON with PHP. Lets assume that you have json file which has list of states, pincode regex and its respective cities. Quick tutorial on how to use JSON in java Code in this tutorial https://github. responseType = 'json'; request. How should I do that? In order to. NOTE : The username and password for authentication are passed in header of request. In situations where you don’t want to use a third-party library, and have a good understanding of how data is structured in the web service, using the standard. In this blog, I will demonstrate how to retrieve data from SQL database using jQuery AJAX in ASP. stringify(data), dataType:'json'. Here’s a sample JSON output from the API when uploading two files into Azure:. net: 3) Bind dropdownlist with database using DataSet,SqlDataReader and entity framework in asp. PostgreSQL supports native JSON data type since version 9. In this blog post, I will discuss combining all of these technologies: SQL, Hadoop, Drill, REST with JSON, NoSQL, and HBase, by showing how to use the Drill REST API to query HBase and Hive. New data connections are being added all the time, so make sure you always have the most recent version of Power Query. Gson is a very powerful library to map data structures represented as JSON to Java objects. Twitter data is extracted from json file which is parsed using json-simple library and the data is stored in the form of graph database through java program. I'm trying to save data to a database, but when I try the following exception message is thrown: Column 'COURSEID' is either not in any table in the FROM list or appears within a join. It thus gets tested and updated with each Spark release. In this tutorial, you will learn how to query two database tables, join the data using a conditional expression, and write the data to a JSON file. The tutorial will guide you how to use Jackson for converting Java object to Json and vice-versa. mobile devices, sensors, Azure Stream Analytics, or Application Insight), you can directly send data to Azure SQL Database without any additional layer that transforms JSON to relational format. If you’re not familiar with Java EE JPA specification, this will allow to model an object class into a database table by using the annotation @Entity to connect to the database table with the same name and the annotation @Id to identify the table primary key. In this JWT tutorial I am going to demonstrate how to implement the basic authentication using JSON Web Tokens in two popular web technologies: Laravel 5 for the backend code and AngularJS for the frontend Single Page Application (SPA) example. We'll look at how to POST text (JSON) data here. Seems like we are repeating same mistakes as done when using XML data in a unserious way. Whatever you're building, these guides are designed to get you productive as quickly as possible – using the latest Spring project releases and techniques as recommended by the Spring team. Here’s how to extract values from nested JSON in SQL 🔨: Example. First we will get records from the database (Microsoft SQL Server) into a DataTable or we can also add dynamic rows to our DataTable. Compress your JSON. How should I do that? In order to. net: 5) Could not find any resources appropriate for the specified culture or the neutral culture. These items will be return to the client in JSON format. If you want to send a lot of data to a server, you'll want to send it via a POST request, not a GET. Android – Passing Java Object to Another Activity We can pass simple “primitive” data type (String, int, double,…ect) to activities Passing Data to Another Activities. Read the JSON file from disk and deserialize (note the deserialize section refers to our Things class). Data stored using the Universal Binary JSON format are on average 30% smaller as a rule of thumb. Business people tend to use Microsoft office products to store and exchange information, but when those data needs to be used in a product converting to a different format like JSON the process could be tedious. create({ a:4, b:5, add: function(){ return (this. Can I save not strict JSON as Object in this DB? For example: DBObject dbObject = (DBObject)JSON. With the new JSON functionalities, you can: Read data from JSON text by using JSON_VALUE/JSON_QUERY functions. Here we will see how to use SQLite API to perform database common operations. We will use `HttpURLConnection` to POST JSON data to the server. In most cases, using a JSON library will be the easiest way of working with JSON-formatted data in C#. For more information about using different languages, including PHP, to access JSON, see Modifying a JSON message in the IBM Integration Bus documentation. Use any text editor, or an application like Excel, to create the. One example for it is PostgreSQL's JSONB data type which allows you to store JSON documents efficiently in a database column. A call is represented by sending request or notification messages from the client to the server. Listing 1: Triggering the database to create. From the data tab, you need to select the option ADO. param(data) to serialize it. Write below code on your HTML page 3. Before starting here is the REST API I am using to parse data into my system JSON-API. Create a file called Database. You need to serialize it yourself to a string. Net, SQL Table, Java and PHP from JSON. How to create a JQuery DataTable using JSON and Servlet to create the basic DataTable with data. The code does a couple of things. NET, Microsoft Office, Azure, Windows, Java, Adobe, Python, SQL, JavaScript, Angular and much more. You can also use other JSON library like GSON instead of Jackson to convert JSON String to Java object. In the JSON tab, send the following data:. Only use custom authentication protocols if you are willing to support client libraries you can give to your REST API callers (Java, Ruby, PHP, Python, etc) so your users can use these protocols with little or no effort. that finally worked I never wanted to use JSON to begin with, but when I looked this up, most solutions suggested you had to use JSON. Convert JavaScript Object to JSON String. Jackson aims to be the best possible combination of fast, correct, lightweight, and ergonomic for developers In this example we will send json as a input, and the json request will be mapped to Order object. It's caused a buzz in the tech world because JSON is much easier to load, read and manipulate compared to XML. The RESTful backend is consumed by a single page web application using AngularJS and MongoDB for data storage. Connecting a mobile app to a database is a critical foundation of many of the world's most popular applications. options: -h [ --host ] arg mongo host to connect to ( /s1,s2 for -u [ --username ] arg username -p [ --password. It can mean less network traffic, looser coupling, and less need for the application developer to require full access to the base tables of the database. To read the JSON and write it to a database we are going to use a command line runner. Using this destination you can configure URL and API Body (e. The RESTful backend is consumed by a single page web application using AngularJS and MongoDB for data storage. Of course, the server should be ready to handle data in the selected. txt, under "Separator character," you can pick what letter or symbol Google Sheets uses to separate cells. Form property. JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write. NET will write the full assembly name, including version number, culture and public key token. java This RESTful service resouce uses the @Produces({ MediaType. Expert in developing web applications using JavaScript, JSP, HTML/DHTML, DOM, XHTML, jQuery, CSS, and Ajax, & IDE tools like Eclipse, Notepad++. In this article first of all I will put light on the introduction of JSON and then explain how to insert JSON data present in JSON file to a database and then the vice versa of the same i. Lines 4-5 appends our default option. Json stands for JavaScript object notation, which is format of data, used to send and retrieve data on the internet. bankofmaldives. The requests and responses will be in JSON as both parties understand this format. This way, you can directly send single JSON text file and load it into table. In this tutorial, we will show you how to POST JSON data using PHP cURL and get JSON data in PHP. Check out the sample application re-written using Spring Data application but with MySql Database and Spring Data Rest. Most developers getting started with api. While developing a JavaScript application, you will sometimes want to serialize your data into a plain string. Recently I was tasked with reading a JavaScript Object Notation (JSON) file using Java. The application contains a WebSocket endpoint and decoder and encoder interfaces, a web page and some JavaScript files that are run in the client browser when the page is loaded or when invoked from a form in the web page. Next we take the value of the button clicked and send it to serverside. Q&A for Work. We will use Spring latest version 4. so tell me how to send the json data to that url n obtain some response like if email id is already exist if u. JSON is lightweight and language independent and that is why its commonly used with jQuery Ajax for transferring data. The Protocol Buffers specification is implemented in various languages: Java, C, Go, etc. These properties make JSON an ideal data-interchange language. A call is represented by sending request or notification messages from the client to the server. Security is always something that is changing and evolving. Since Oracle Database release 12. Requirements. This very brief article demonstrates how a fairly complex, nested JSON document can be created using a single SQL query. In this tutorial, you will learn how to query two database tables, join the data using a conditional expression, and write the data to a JSON file. FeedServlet. Avoid frequent hand-editing of JSON data for this reason. Data Access Object or DAO design pattern is a popular design pattern to implement persistence layer of Java application. What if I continue to have problems signing in? Submit a Web site feedback form to give us specific details on what page you're trying to sign in to and what browser and version you're using. This article describes a Java EE 7 web application that exposes a REST service that handles HTTP POST requests with JSON payload. The payload is composed using the two input parameters passed into the procedure. Listing 5 shows the query he uses to extract the details for check 151. 2010 to 2014). From here, parse out the body of the request, which is a JSON string. This is where an application pulls data from another application via an HTTP request on the web. If you’re not familiar with Java EE JPA specification, this will allow to model an object class into a database table by using the annotation @Entity to connect to the database table with the same name and the annotation @Id to identify the table primary key. We have number of functions in jQuery to kick-off an ajax request. Setup a private space for you and your coworkers to ask questions and share information. Hi, how are you. The recommend way of dealing with JSON is using Play’s typeclass based JSON library, located at play. While each document-oriented database implementation differs on the details of this definition, in general, they all assume documents encapsulate and encode data (or information) in some standard format or encoding. Remember that the field where you can store the JSON data in mysql to set data type of that field is TEXT. What if I continue to have problems signing in? Submit a Web site feedback form to give us specific details on what page you're trying to sign in to and what browser and version you're using. NET because they all go against the framework conventions. Using JDBC you can create a connection to the database, issue database queries and updates and receive the results. Use Standard Database APIs to Insert or Update JSON Data. The document support (available now in the AWS SDK for Java, the SDK for. Here dynamic data means the data( All the records ) directly coming from online server with the use of PHP scripting code that is also coming from MySQL database. (* ADO = ActiveX Data Object). I'm not Java expert so it took a while for me to write a simple java code to insert data.  We would want the country selection. With DynamoDB Streams, you can trigger a Lambda function to perform additional work each time a DynamoDB table is updated. Go to the Cloud SQL Instances page. Prerequisites. Sending complex structure using a key-value pair would be very nasty and difficult to parse on the server (you could try and you'll see it right away). js → How to update your data object for AJAX JSON data retrieval. Next install Mongoose from the command line using npm: $ npm install mongoose. 2 we allow the creation of JSON data using 4 new SQL operators JSON_OBJECT, JSON_OBJECTAGG, JSON_ARRAY, JSON_ARRAYAGG (which are all part of the new SQL 2016 standard). ajax method is more flexible, but even so it still lacks the capability to pass JSON data TO the server. How to read data from JSON array. For getting the urls we will use JSON. To send information from java to javascript in cordova with Java android : Include the required components. Lines 4-5 appends our default option. json library. After three weeks, how to declare the public one. Let’s say you want to get information from a database, safely return the data as JSON, and loop through it dynamically,. com -- JSON (Javascript Object Notation) is a text-based, human-readable data interchange format used for representing simple data structures and objects in Web browser-based code. I hope that methods like the one you describe above for validation will be used now, when sharing data using JSON. Json Data string from database records User browser sends xmlhttprequest to backend server scripts to send data. JSON is a light-weight text based format for data exchange. , here we get a list of all cars and other detail information from our database ( MS SQL. This blog post describes how to send data from a JavaScript Client to a C# handler on the server. Upload JSON file, Upload url of JSON and view in Tree Structure. We could have just as easily read the JSON text from a field in the database. First you have to identify the purpose of the inserting of the JSON. The main features used in the SQL statement are the WITH clause to define the inline views per object (Department, Manager, Employee), Scalar Subquery to retrieve the result from an inline view as string intoRead More. If you build and start the Hello World example application that is provided in the VoltDB distribution kit (including the client that loads data into the database), you can then open a web browser and connect to the local system through port 8080, to retrieve the French translation of "Hello World". This tutorial will be based on one of my previous tutorials about Spring MVC and REST services. I'm not Java expert so it took a while for me to write a simple java code to insert data. They both use Joda Time. JSON (JAVA Script Object Notation) is a text-based open standard designed for human-readable data interchange. We will be sending data back to the main page from web server by using Json formatted strings. It's caused a buzz in the tech world because JSON is much easier to load, read and manipulate compared to XML. Here is the pom. Deserializing JSON (reading JSON from file and creating C# classes) As we mentioned above you need to have the C# variables which reflect the JSON data (see the Things and SingleThing classes above. It is most commonly used for communication between web back-ends and JavaScript programs running in the browser, but it is used in many other places, too. A serialized string, which means it can later be parsed and decoded into data types.