Easy-breezy Data Generator

This is a package which helps user to create a random dataset for any customized schema (Internally this package uses chance.js).

What's chance.js?

Chance is a generator of random strings, numbers etc. It helps reduce some mmonotony particulary while writing any automated tests or anywhere else you need anything random everytime.

How it works??

Generating data on the customized schema was a challenge earlier, But is no longer now :). In this package, we are going to see how you can generate a dataSet providing schema of your choice.!

How to configure your schema?

Simply customized your schema specifying your kinds (types). Types can be email, natural number, paragraph etc.. (find list of supported kinds at the end of this article.). Random data is an integral part of any testing or statistical modeling. They play an increasing important role in the system. And having control over the modelling/structuring of data would be cherry on the cake. So lets control the structuring of data by passing any variations of fields, arrays and objects in just one file. Below is the test schema.json for reference.

{
  "email": {
    "kind": "email",
    "params": {
      "domain": "test.com"
    }
  },
  "age": {
    "kind": "age",
    "params": {
      "type": "adult"
    }
  },
  "company": {
    "type": "object",
    "fields": {
      "companyName": {
        "kind": "company"
      },
      "companyAddress": {
        "kind": "address"
      },
      "companyDetails": {
        "type": "object",
        "fields": {
          "companyId": {
            "kind": "fbid"
          },
          "employeeCount": {
            "kind": "natural",
            "params": {
              "min": 1,
              "max": 20
            }
          },
          "subjects": {
            "type": "array",
            "count": 2,
            "fields": {
              "subjectName": {
                "kind": "word"
              },
              "marks": {
                "kind": "natural",
                "params": {
                  "min": 1,
                  "max": 100
                }
              }
            }
          }
        }
      }
    }
  },
  "firstName": {
    "kind": "first"
  },
  "lastName": {
    "kind": "last"
  },
  "subjects": {
    "type": "array",
    "count": 6,
    "fields": {
      "subjectName": {
        "kind": "word"
      },
      "marks": {
        "kind": "natural",
        "params": {
          "min": 1,
          "max": 100
        }
      }
    }
  }
}

You must be wondering what's this params parameter, these are optional parameters which chance.js uses for configuring you're kinds. Take the example of an email kind, it accepts domain parameter as params.

NOTE: By the way, this is just a sample schema.json, you can create your own using any combination of arrays or objects, which ever way you want it!

How to use?

1. Install easy-breezy-data-generator from npm:

npm install easy-breezy-data-generator

2. Import the package and schema, in whichever file you need it.

const DataGenerator = require('easy-breezy-data-generator');
const schema = require('./schema.json');

3. Finally initialize and generate the random dataSet

const dataGenerator = new DataGenerator(schema);
console.log(JSON.stringify(dataGenerator.generateData()));

Below are some most used kinds. Also don't forget to checkout, all the different kinds provided by [chance.js] (https://chancejs.com/).

1. bool
2. falsy
3. character
4. floating
5. integer
6. letter
7. natural
8. prime
9. string
10. paragraph
11. sentence
12. syllable
13. word
14. age
15. birthday
16. cf
17. cpf
18. first
19. gender
20. last
21. name
22. prefix
23. ssn
24. suffix
25. animal
26. android_id
27. apple_token
28. bb_pin
29. wp7_anid
30. wp8_anid2
31. avatar
32. color
33. company
34. domain
35. email
36. fbid
37. google_analytics
38. hashtag
39. ip
40. ipv6
41. klout
42. profession
43. tld
44. twitter
45. url
46. address
47. altitude
48. areacode
49. city
50. coordinates
51. country
52. depth
53. geohash
54. latitude
55. locale
56. longitude
57. phone
58. postal
59. postcode
60. province
61. state
62. street
63. zip
64. ampm
65. date
66. hammertime
67. hour
68. millisecond
69. minute
70. month
71. second
72. timestamp
73. timezone
74. weekday
75. year
76. cc
77. cc_type
78. currency
79. currency_pair
80. dollar
81. euro
82. exp
83. exp_month
84. exp_year
85. capitalize
86. mixin
87. pad
88. pick
89. pickone
90. pickset
91. set
92. shuffle
93. coin
94. dice
95. guid
96. hash
97. hidden
98. n
99. normal
100. radio
101. rpg
102. tv
103. unique
104. weighted