Existing Data Exchanges

Existing Data Exchanges

1. JSON

   • JSON is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays.
     • JSON String: '{"name":"John", "age":30, "car":null}'

2. XML

   • Extensible Markup Language is a markup language and file format for storing, transmitting, and reconstructing arbitrary data.
     • <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note>

3. SOAP

   • A lightweight XML-based protocol that is used for the exchange of information in decentralized, distributed application environments.
     • POST /Quotation HTTP/1.0 Host: www.xyz.org Content-Type: text/xml; charset = utf-8 Content-Length: nnn <?xml version = "1.0"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV = "http://www.w3.org/2001/12/soap-envelope" SOAP-ENV:encodingStyle = "http://www.w3.org/2001/12/soap-encoding"> <SOAP-ENV:Body xmlns:m = "http://www.xyz.org/quotations"> <m:GetQuotation> <m:QuotationsName>MiscroSoft</m:QuotationsName> </m:GetQuotation> </SOAP-ENV:Body> </SOAP-ENV:Envelope>

4. Messaging

   • Messaging is a method of communication between software components or applications.

5. GraphQL

   • GraphQL is an open-source data query and manipulation language for APIs and a query runtime engine.
     • type Query { me: User } type User { id: ID name: String }

6. SQL

   • A programming language for storing and processing information in a relational database.
     • SELECT * FROM Customers;

7. Python

   • Python is an interpreted, object-oriented, high-level programming language with dynamic semantics.
     • import random print(random.randint(0,9))

8. HTML

   • Hypertext Markup Language, a standardized system for tagging text files to achieve font, colour, graphic, and hyperlink effects on World Wide Web pages.
     • <!DOCTYPE html> <html> <body> <h1>This is heading 1</h1> </body> </html>

9. CSS

   • CSS is used to define styles for your web pages, including the design, layout and variations in display for different devices and screen sizes.
     • <!DOCTYPE html> <html> <head> <style> body { background-color: linen; } h1 { color: maroon; margin-left: 40px; } </style> </head> <body> <h1>This is a heading</h1> <p>This is a paragraph.</p> </body> </html>

10. Data Tables

    • A data table is a document comprising columns, rows and cells that contain specific values.

11. Data Types

    • A data type is an attribute associated with a piece of data that tells a computer system how to interpret its value.
      • Interger, Floating Point, Character, String, Boolean, Array, Date and Time are common examples.

12. Constraints

    • A limitation or restriction.
      • A cost constraint means that you're limited to a specific project budget

13. Arrays

    • An array is a data structure, which can store a fixed-size collection of elements of the same data type.
      • String[] array = new String[100]

14. Keys

    • A key is a field, or combination of fields, in a database table used to retrieve and sort rows in the table based on certain requirements which could be public or private.

15. Values

    • A value is the representation of some entity that can be manipulated by a program.
      • x = 1 So X is the variable while 1 is the value.