Show Menu
Cheatography

The basic of JSON (JavaScript Object Notation) and BSON.

Example

{
  "id": "cb7d21b7-b1cf-4a15-af0a-40025f3543f9",
  "firstName": "John",
  "lastName": "Doe",
  "maxScore": 4912,
  "minScore": -123.14,
  "scoreHistory": [
    {
      "date": "2017-04-12",
      "score": 123
    },
    {
      "date": "2019-10-03",
      "score": 628
    },
    {
      "date": "2021-07-26",
      "score": 845
    }
  ],
  "address": {
    "number": 4,
    "street": "Privet Drive",
    "city": "Little Whinging",
    "zip": 4859,
    "country": "Great Britain"
  },
  "active": true,
  "selected": false,
  "selectedDate": null
}
 

JSON Types

String
Sequence of zero or more Unicode characters.
Strings are delimited with double quotation marks and support a backslash escaping syntax.
Number
Signed decimal number that may contain a fractional part and may use expone­ntial E notation.
Object
Collection of name–value pairs where the names (also called keys) are strings.
Array
Ordered list of zero or more elements, each of which may be of any type.
Arrays use square bracket notation with comma-­sep­arated elements.
Boolean
Either of the values true or false.
null
Empty value, using the word null.

BSON Types

Double
64-bit floating point number.
Binary Data
Byte array.
ObjectId
12-byte objectId consists of:
4-byte timestamp
5-byte random value
3-byte increm­enting counter.
Date
Datetime without time zone.
Regular Expression
Perl compatible regular expres­sion.
JavaScript
JavaScript code.
32bit integer
32-bit integer.
Timestamp
Timestamp.
64bit integer
64-bit integer.
Decimal128
128-bit decimal floating point.
These types complement JSON types.

Escaping Characters

\"
double quotes
\\
backslash
\/
slash
\b
backspace
\f
form feed
\n
newline
\r
carriage return
\t
horizontal tab
\uXXXX
XXXX is the 4-digit hexade­­cimal unicode code for the character
 

Metadata

  • Languages:
  • Published: 13th January, 2023
  • Last Updated: 15th January, 2023

Comments

No comments yet. Add yours below!

Add a Comment

Your Comment

Please enter your name.

    Please enter your email address

      Please enter your Comment.

          Related Cheat Sheets

          JSON Cheat Sheet
          JQ Cheat Sheet
          Suricata NSM: More than an IDS Cheat Sheet