Type Reference

Complete reference for all available data types in FakeDataDSL.

Basic Types

Identifiers

uuid - UUID v4 identifier

id: uuid
id: uuid(version: 6)  # UUID v6
id: uuid(version: 7)  # UUID v7

ulid - ULID identifier
```
id: ulid
```

id_sequence - Sequential numeric IDs

id: id_sequence
id: id_sequence(start: 1000)

Strings

name - Full person name
```
name: name
```

text - Random text

description: text
bio: text(100..500)  # Length range

email - Email address
```
email: email
```

phone - Phone number

phone: phone
phone: phone(country: :us)

url - Web URL
```
website: url
```

Numbers

number - Numeric value

age: number(18..65)
price: number(min: 10, max: 100)

boolean - True/false
```
active: boolean
```

Dates and Times

date - Calendar date

birth_date: date
birth_date: date(2020-01-01..2024-12-31)

past_date - Date in the past

created_at: past_date
created_at: past_date(days: 30)

future_date - Date in the future

expires_at: future_date
expires_at: future_date(days: 90)

timestamp - Unix timestamp
```
created_at: timestamp
```
now - Current timestamp
```
updated_at: now
```

Personal Information Types

first_name - Given name
last_name - Family name
full_name - Combined first and last name
gender - Gender identity
age - Age value
username - Username identifier
national_id - Government ID (SSN, etc.)

Location Types

country - Country name
country_code - ISO country code (US, GB, etc.)
city - City name
state - State/province name
address - Full street address
postal_code - Postal/ZIP code
latitude - Geographic latitude
longitude - Geographic longitude
timezone - IANA timezone identifier

Commerce Types

product_name - Product name
product_category - Product category
sku - Stock keeping unit
money - Monetary amount
discount - Discount value
tax_rate - Tax rate percentage

Finance Types

credit_card - Credit card number (Luhn-valid)
bank_name - Bank name
account_number - Bank account number
iban - International Bank Account Number
transaction_amount - Financial transaction amount

Internet/IT Types

ip - IPv4 address
ipv6 - IPv6 address
mac_address - MAC address
domain - Domain name
user_agent - Browser user agent string

Crypto Types

hash - Cryptographic hash
bitcoin_address - Bitcoin wallet address
ethereum_address - Ethereum wallet address
private_key - Cryptographic private key

Health Types

blood_type - Blood group (A+, B-, etc.)
bmi - Body Mass Index
heart_rate - Heart beats per minute
medical_code - Medical classification code

Travel Types

airport_code - IATA airport code
airline - Airline name
flight_number - Flight identifier
seat_number - Aircraft seat number

Advanced Types

enum - Enumeration with values

status: enum(active, inactive, pending)
status: enum(active: 80%, inactive: 15%, pending: 5%)

array - Array of values

tags: array(text, 3..10)
scores: array(number(0..100), 5)

object - Nested object

address: object(
street: text,
city: city,
zip: postal_code
)

reference - Reference another schema
```
user_id: reference(User, id)
```
custom - Custom function
```
slug: custom(:generate_slug)
```
formula - Computed value
```
total: formula(price * quantity)
```

template - String interpolation

greeting: template("Hello {first_name}!")

sequence - Sequential values
```
order: sequence(start: 1, step: 1)
```

default_value - Default value with probability

status: default_value(value: "active", probability: 0.9)