sarin/docs/templating.md

Templating

Sarin supports Go templates in URL paths, methods, bodies, headers, params, cookies, and values.

Note: Templating in URL host and scheme is not supported. Only the path portion of the URL can contain templates.

Note: Template rendering happens before the request is sent. The request timeout (-T / timeout) only governs the HTTP request itself and starts after templates have finished rendering, so slow template functions (e.g. captcha solvers, remote file_Read) cannot cause a request timeout no matter how long they take.

Table of Contents

• Using Values
• General Functions
  • String Functions
  • Collection Functions
  • JSON Functions
  • Time Functions
  • Crypto Functions
  • Body Functions
  • File Functions
• Captcha Functions
  • 2Captcha
  • Anti-Captcha
  • CapSolver
• Fake Data Functions
  • File
  • ID
  • Product
  • Person
  • Generate
  • Auth
  • Address
  • Game
  • Beer
  • Car
  • Words
  • Text
  • Foods
  • Misc
  • Color
  • Image
  • Internet
  • HTML
  • Date/Time
  • Payment
  • Finance
  • Company
  • Hacker
  • Hipster
  • App
  • Animal
  • Emoji
  • Language
  • Number
  • String
  • Celebrity
  • Minecraft
  • Book
  • Movie
  • Error
  • School
  • Song

Using Values

Values are generated once per request and can be referenced in multiple fields using {{ .Values.KEY }} syntax. This is useful when you need to use the same generated value (e.g., a UUID) in both headers and body within the same request.

Example:

values: |
    REQUEST_ID={{ fakeit_UUID }}
    USER_ID={{ fakeit_UUID }}

headers:
    X-Request-ID: "{{ .Values.REQUEST_ID }}"
body: |
    {
      "requestId": "{{ .Values.REQUEST_ID }}",
      "userId": "{{ .Values.USER_ID }}"
    }

In this example, REQUEST_ID is generated once and the same value is used in both the header and body. Each new request generates a new REQUEST_ID.

CLI example:

sarin -U http://example.com/users \
  -V "ID={{ fakeit_UUID }}" \
  -H "X-Request-ID: {{ .Values.ID }}" \
  -B '{"id": "{{ .Values.ID }}"}'

General Functions

String Functions

Function	Description	Example
strings_ToUpper	Convert string to uppercase	{{ strings_ToUpper "hello" }} → HELLO
strings_ToLower	Convert string to lowercase	{{ strings_ToLower "HELLO" }} → hello
strings_RemoveSpaces	Remove all spaces from string	{{ strings_RemoveSpaces "hello world" }} → helloworld
strings_Replace(s string, old string, new string, n int)	Replace first n occurrences of old with new. Use -1 for all	{{ strings_Replace "hello" "l" "L" -1 }} → heLLo
strings_ToDate(date string)	Parse date string (YYYY-MM-DD format)	{{ strings_ToDate "2024-01-15" }}
strings_First(s string, n int)	Get first n characters	{{ strings_First "hello" 2 }} → he
strings_Last(s string, n int)	Get last n characters	{{ strings_Last "hello" 2 }} → lo
strings_Truncate(s string, n int)	Truncate to n characters with ellipsis	{{ strings_Truncate "hello world" 5 }} → hello...
strings_TrimPrefix(s string, prefix string)	Remove prefix from string	{{ strings_TrimPrefix "hello" "he" }} → llo
strings_TrimSuffix(s string, suffix string)	Remove suffix from string	{{ strings_TrimSuffix "hello" "lo" }} → hel

Collection Functions

Function	Description	Example
dict_Str(pairs ...string)	Create string dictionary from key-value pairs	{{ dict_Str "key1" "val1" "key2" "val2" }}
slice_Str(values ...string)	Create string slice	{{ slice_Str "a" "b" "c" }}
slice_Join(slice []string, sep string)	Join string slice with separator	{{ slice_Join (slice_Str "a" "b" "c") "-" }} → a-b-c
slice_Int(values ...int)	Create int slice	{{ slice_Int 1 2 3 }}
slice_Uint(values ...uint)	Create uint slice	{{ slice_Uint 1 2 3 }}

JSON Functions

Build JSON payloads programmatically without manual quoting or escaping. json_Object is the ergonomic shortcut for flat objects; json_Encode marshals any value (slice, map, etc.) to a JSON string.

Function	Description	Example
json_Object(pairs ...any)	Build an object from interleaved key-value pairs and return it as a JSON string. Keys must be strings.	{{ json_Object "name" "Alice" "age" 30 }}
json_Encode(v any)	Marshal any value (slice, map, etc.) to a JSON string.	{{ json_Encode (slice_Str "a" "b") }} → ["a","b"]

Examples:

# Flat object with fake data
body: '{{ json_Object "name" (fakeit_FirstName) "email" (fakeit_Email) }}'

# Embed a solved captcha token
body: '{{ json_Object "g-recaptcha-response" (twocaptcha_RecaptchaV2 "API_KEY" "SITE_KEY" "https://example.com") }}'

# Encode a slice as a JSON array
body: '{{ json_Encode (slice_Str "a" "b" "c") }}'

# Encode a string dictionary (map[string]string)
body: '{{ json_Encode (dict_Str "key1" "value1" "key2" "value2") }}'

Note: Object keys are serialized in alphabetical order (Go's encoding/json default), not insertion order. For API payloads this is almost always fine because JSON key order is semantically irrelevant.

Time Functions

Function	Description	Example
time_NowUnix	Current Unix timestamp (seconds)	{{ time_NowUnix }} → 1735689600
time_NowUnixMilli	Current Unix timestamp (milliseconds)	{{ time_NowUnixMilli }} → 1735689600123
time_NowRFC3339	Current time in RFC3339 format	{{ time_NowRFC3339 }} → "2026-02-26T21:00:00Z"
time_Format(layout, t)	Format a time.Time value with a Go layout	{{ time_Format "2006-01-02" (strings_ToDate "2024-05-10") }} → "2024-05-10"

Crypto Functions

Function	Description	Example
crypto_SHA256(s string)	SHA-256 hash (hex-encoded)	{{ crypto_SHA256 "hello" }}
crypto_MD5(s string)	MD5 hash (hex-encoded)	{{ crypto_MD5 "hello" }}
crypto_HMACSHA256(key, msg string)	HMAC-SHA256 signature (hex-encoded)	{{ crypto_HMACSHA256 "secret" "payload" }}
crypto_Base64URL(s string)	Base64 URL-safe encoding (without padding)	{{ crypto_Base64URL "hello world" }}

Body Functions

Function	Description	Example
body_FormData(pairs ...string)	Create multipart form data from key-value pairs. Automatically sets the Content-Type header. Values starting with @ are treated as file references (local path or URL). Use @@ to escape literal @.	{{ body_FormData "field1" "value1" "file" "@/path/to/file.pdf" }}

body_FormData Details:

# Text fields only
body: '{{ body_FormData "username" "john" "email" "john@example.com" }}'

# Single file upload
body: '{{ body_FormData "document" "@/path/to/file.pdf" }}'

# File from URL
body: '{{ body_FormData "image" "@https://example.com/photo.jpg" }}'

# Mixed text fields and files
body: |
  {{ body_FormData
     "title" "My Report"
     "author" "John Doe"
     "cover" "@/path/to/cover.jpg"
     "document" "@/path/to/report.pdf"
  }}

# Multiple files with same field name
body: |
  {{ body_FormData
     "files" "@/path/to/file1.pdf"
     "files" "@/path/to/file2.pdf"
  }}

# Escape @ for literal value (sends "@username")
body: '{{ body_FormData "twitter" "@@username" }}'

Note: Files are cached in memory after the first read. Subsequent requests reuse the cached content, avoiding repeated disk/network I/O.

File Functions

Function	Description	Example
file_Read(source string)	Read a file (local path or URL) and return raw content as string. Files are cached after first read.	{{ file_Read "/path/to/file.txt" }}
file_Base64(source string)	Read a file (local path or URL) and return its Base64 encoded content. Files are cached after first read.	{{ file_Base64 "/path/to/file.pdf" }}

file_Read and file_Base64 Details:

# Local file as plain text
body: '{{ file_Read "/path/to/template.json" }}'

# Remote text file
body: '{{ file_Read "https://example.com/payload.txt" }}'

# Local file as Base64 in JSON body
body: '{"file": "{{ file_Base64 "/path/to/document.pdf" }}", "filename": "document.pdf"}'

# Remote file as Base64
body: '{"image": "{{ file_Base64 "https://example.com/photo.jpg" }}"}'

# Combined with values for reuse
values: "FILE_DATA={{ file_Base64 \"/path/to/file.bin\" }}"
body: '{"data": "{{ .Values.FILE_DATA }}"}'

Captcha Functions

Captcha functions solve a captcha challenge through a third-party solving service and return the resulting token, which can then be embedded directly into a request. They are intended for load testing endpoints protected by reCAPTCHA, hCaptcha, or Cloudflare Turnstile.

The functions are organized by service: twocaptcha_*, anticaptcha_*, and capsolver_*. Each accepts the API key as the first argument so no global configuration is required — bring your own key and use any of the supported services per template.

Important — performance and cost:

• Each call is slow. Solving typically takes ~5–60 seconds because the function blocks the template render until the third-party service returns a token. Internally the solver polls every 1s and gives up after 120s.
• Each call costs money. Every successful solve is billed by the captcha service (typically $0.001–$0.003 per solve). For high-volume tests, your captcha bill grows linearly with request count.

Common parameters across all captcha functions:

• apiKey - Your API key for the chosen captcha solving service
• siteKey - The captcha sitekey extracted from the target page (e.g. the data-sitekey attribute on a reCAPTCHA, hCaptcha, or Turnstile element)
• pageURL - The URL of the page where the captcha is hosted

2Captcha

Functions for the 2Captcha service. Note: 2Captcha does not currently support hCaptcha through their API.

Function	Description
twocaptcha_RecaptchaV2(apiKey, siteKey, pageURL string)	Solve a Google reCAPTCHA v2 challenge
twocaptcha_RecaptchaV3(apiKey, siteKey, pageURL, pageAction string)	Solve a Google reCAPTCHA v3 challenge. Pass "" for pageAction to omit
twocaptcha_Turnstile(apiKey, siteKey, pageURL string, cData ...string)	Solve a Cloudflare Turnstile challenge. Optional cData argument

Anti-Captcha

Functions for the Anti-Captcha service. This is currently the only service that supports all four captcha types end-to-end.

Function	Description
anticaptcha_RecaptchaV2(apiKey, siteKey, pageURL string)	Solve a Google reCAPTCHA v2 challenge
anticaptcha_RecaptchaV3(apiKey, siteKey, pageURL, pageAction string)	Solve a Google reCAPTCHA v3 challenge. minScore is hardcoded to 0.3 (Anti-Captcha rejects the request without it)
anticaptcha_HCaptcha(apiKey, siteKey, pageURL string)	Solve an hCaptcha challenge
anticaptcha_Turnstile(apiKey, siteKey, pageURL string, cData ...string)	Solve a Cloudflare Turnstile challenge. Optional cData argument

CapSolver

Functions for the CapSolver service. Note: CapSolver no longer supports hCaptcha.

Function	Description
capsolver_RecaptchaV2(apiKey, siteKey, pageURL string)	Solve a Google reCAPTCHA v2 challenge
capsolver_RecaptchaV3(apiKey, siteKey, pageURL, pageAction string)	Solve a Google reCAPTCHA v3 challenge. Pass "" for pageAction to omit
capsolver_Turnstile(apiKey, siteKey, pageURL string, cData ...string)	Solve a Cloudflare Turnstile challenge. Optional cData argument

Examples:

# reCAPTCHA v2 in a JSON body via 2Captcha
method: POST
url: https://example.com/login
body: |
    {
      "username": "test",
      "g-recaptcha-response": "{{ twocaptcha_RecaptchaV2 "YOUR_API_KEY" "6LfD3PIb..." "https://example.com/login" }}"
    }

# Turnstile via Anti-Captcha with cData
method: POST
url: https://example.com/submit
body: |
    {
      "cf-turnstile-response": "{{ anticaptcha_Turnstile "YOUR_API_KEY" "0x4AAAAAAA..." "https://example.com/submit" "session-cdata" }}"
    }

# hCaptcha via Anti-Captcha (the only service that still supports it)
method: POST
url: https://example.com/protected
body: |
    {
      "h-captcha-response": "{{ anticaptcha_HCaptcha "YOUR_API_KEY" "338af34c-..." "https://example.com/protected" }}"
    }

# Share a single solved token across body and headers via values
values: 'TOKEN={{ capsolver_Turnstile "YOUR_API_KEY" "0x4AAAAAAA..." "https://example.com" }}'
headers:
    X-Turnstile-Token: "{{ .Values.TOKEN }}"
body: '{"token": "{{ .Values.TOKEN }}"}'

Fake Data Functions

These functions are powered by gofakeit library.

File

Function	Description	Example Output
fakeit_FileExtension	File extension	"nes"
fakeit_FileMimeType	MIME type	"application/json"

ID

Function	Description	Example Output
fakeit_ID	Generate random unique identifier	"pfsfktb87rcmj6bqha2fz9"
fakeit_UUID	Generate UUID v4	"b4ddf623-4ea6-48e5-9292-541f028d1fdb"

Product

Function	Description	Example Output
fakeit_ProductName	Product name	"olive copper monitor"
fakeit_ProductDescription	Product description	"Backwards caused quarterly..."
fakeit_ProductCategory	Product category	"clothing"
fakeit_ProductFeature	Product feature	"ultra-lightweight"
fakeit_ProductMaterial	Product material	"brass"
fakeit_ProductUPC	UPC code	"012780949980"
fakeit_ProductAudience	Target audience	["adults"]
fakeit_ProductDimension	Product dimension	"medium"
fakeit_ProductUseCase	Use case	"home"
fakeit_ProductBenefit	Product benefit	"comfort"
fakeit_ProductSuffix	Product suffix	"pro"
fakeit_ProductISBN	ISBN number	"978-1-4028-9462-6"

Person

Function	Description	Example Output
fakeit_Name	Full name	"Markus Moen"
fakeit_NamePrefix	Name prefix	"Mr."
fakeit_NameSuffix	Name suffix	"Jr."
fakeit_FirstName	First name	"Markus"
fakeit_MiddleName	Middle name	"Belinda"
fakeit_LastName	Last name	"Daniel"
fakeit_Gender	Gender	"male"
fakeit_Age	Age	40
fakeit_Ethnicity	Ethnicity	"German"
fakeit_SSN	Social Security Number	"296446360"
fakeit_EIN	Employer ID Number	"12-3456789"
fakeit_Hobby	Hobby	"Swimming"
fakeit_Email	Email address	"markusmoen@pagac.net"
fakeit_Phone	Phone number	"6136459948"
fakeit_PhoneFormatted	Formatted phone	"136-459-9489"

Generate

Function	Description	Example
fakeit_Regex(pattern string)	Generate string matching regex pattern	{{ fakeit_Regex "[a-z]{5}[0-9]{3}" }} → "abcde123"

Auth

Function	Description	Example
fakeit_Username	Username	"Daniel1364"
fakeit_Password(upper bool, lower bool, numeric bool, special bool, space bool, length int)	Generate password with specified character types and length	{{ fakeit_Password true true true false false 16 }}

Address

Function	Description	Example Output
fakeit_City	City name	"Marcelside"
fakeit_Country	Country name	"United States of America"
fakeit_CountryAbr	Country abbreviation	"US"
fakeit_State	State name	"Illinois"
fakeit_StateAbr	State abbreviation	"IL"
fakeit_Street	Full street	"364 East Rapidsborough"
fakeit_StreetName	Street name	"View"
fakeit_StreetNumber	Street number	"13645"
fakeit_StreetPrefix	Street prefix	"East"
fakeit_StreetSuffix	Street suffix	"Ave"
fakeit_Unit	Unit	"Apt 123"
fakeit_Zip	ZIP code	"13645"
fakeit_Latitude	Random latitude	-73.534056
fakeit_Longitude	Random longitude	-147.068112
fakeit_LatitudeInRange(min float64, max float64)	Latitude in specified range	{{ fakeit_LatitudeInRange 0 90 }} → 22.921026
fakeit_LongitudeInRange(min float64, max float64)	Longitude in specified range	{{ fakeit_LongitudeInRange 0 180 }} → 122.471830

Game

Function	Description	Example Output
fakeit_Gamertag	Gamer tag	"footinterpret63"

Beer

Function	Description	Example Output
fakeit_BeerAlcohol	Alcohol content	"2.7%"
fakeit_BeerBlg	Blg	"6.4°Blg"
fakeit_BeerHop	Hop	"Glacier"
fakeit_BeerIbu	IBU	"29 IBU"
fakeit_BeerMalt	Malt	"Munich"
fakeit_BeerName	Beer name	"Duvel"
fakeit_BeerStyle	Beer style	"European Amber Lager"
fakeit_BeerYeast	Yeast	"1388 - Belgian Strong Ale"

Car

Function	Description	Example Output
fakeit_CarMaker	Car maker	"Nissan"
fakeit_CarModel	Car model	"Aveo"
fakeit_CarType	Car type	"Passenger car mini"
fakeit_CarFuelType	Fuel type	"CNG"
fakeit_CarTransmissionType	Transmission	"Manual"

Words

Function	Description	Example Output
fakeit_Word	Random word	"example"
fakeit_Noun	Random noun	"computer"
fakeit_NounCommon	Common noun	"table"
fakeit_NounConcrete	Concrete noun	"chair"
fakeit_NounAbstract	Abstract noun	"freedom"
fakeit_NounCollectivePeople	Collective noun (people)	"team"
fakeit_NounCollectiveAnimal	Collective noun (animal)	"herd"
fakeit_NounCollectiveThing	Collective noun (thing)	"bunch"
fakeit_NounCountable	Countable noun	"book"
fakeit_NounUncountable	Uncountable noun	"water"
fakeit_Verb	Random verb	"run"
fakeit_VerbAction	Action verb	"jump"
fakeit_VerbLinking	Linking verb	"is"
fakeit_VerbHelping	Helping verb	"can"
fakeit_Adverb	Random adverb	"quickly"
fakeit_AdverbManner	Manner adverb	"carefully"
fakeit_AdverbDegree	Degree adverb	"very"
fakeit_AdverbPlace	Place adverb	"here"
fakeit_AdverbTimeDefinite	Definite time adverb	"yesterday"
fakeit_AdverbTimeIndefinite	Indefinite time adverb	"soon"
fakeit_AdverbFrequencyDefinite	Definite frequency adverb	"daily"
fakeit_AdverbFrequencyIndefinite	Indefinite frequency adverb	"often"
fakeit_Preposition	Random preposition	"on"
fakeit_PrepositionSimple	Simple preposition	"in"
fakeit_PrepositionDouble	Double preposition	"out of"
fakeit_PrepositionCompound	Compound preposition	"according to"
fakeit_Adjective	Random adjective	"beautiful"
fakeit_AdjectiveDescriptive	Descriptive adjective	"large"
fakeit_AdjectiveQuantitative	Quantitative adjective	"many"
fakeit_AdjectiveProper	Proper adjective	"American"
fakeit_AdjectiveDemonstrative	Demonstrative adjective	"this"
fakeit_AdjectivePossessive	Possessive adjective	"my"
fakeit_AdjectiveInterrogative	Interrogative adjective	"which"
fakeit_AdjectiveIndefinite	Indefinite adjective	"some"
fakeit_Pronoun	Random pronoun	"he"
fakeit_PronounPersonal	Personal pronoun	"I"
fakeit_PronounObject	Object pronoun	"him"
fakeit_PronounPossessive	Possessive pronoun	"mine"
fakeit_PronounReflective	Reflective pronoun	"myself"
fakeit_PronounDemonstrative	Demonstrative pronoun	"that"
fakeit_PronounInterrogative	Interrogative pronoun	"who"
fakeit_PronounRelative	Relative pronoun	"which"
fakeit_Connective	Random connective	"however"
fakeit_ConnectiveTime	Time connective	"then"
fakeit_ConnectiveComparative	Comparative connective	"similarly"
fakeit_ConnectiveComplaint	Complaint connective	"although"
fakeit_ConnectiveListing	Listing connective	"firstly"
fakeit_ConnectiveCasual	Casual connective	"because"
fakeit_ConnectiveExamplify	Examplify connective	"for example"

Text

Function	Description	Example
fakeit_Sentence(wordCount ...int)	Random sentence (optional word count)	{{ fakeit_Sentence }} or {{ fakeit_Sentence 10 }}
fakeit_Paragraph	Random paragraph	{{ fakeit_Paragraph }}
fakeit_LoremIpsumWord	Lorem ipsum word	"lorem"
fakeit_LoremIpsumSentence(wordCount int)	Lorem ipsum sentence with specified word count	{{ fakeit_LoremIpsumSentence 5 }}
fakeit_LoremIpsumParagraph(paragraphs int, sentences int, words int, separator string)	Lorem ipsum paragraphs with specified structure	{{ fakeit_LoremIpsumParagraph 1 3 5 "\n" }}
fakeit_Question	Random question	"What is your name?"
fakeit_Quote	Random quote	"Life is what happens..."
fakeit_Phrase	Random phrase	"a piece of cake"

Foods

Function	Description	Example Output
fakeit_Fruit	Fruit	"Peach"
fakeit_Vegetable	Vegetable	"Amaranth Leaves"
fakeit_Breakfast	Breakfast food	"Blueberry banana happy face pancakes"
fakeit_Lunch	Lunch food	"No bake hersheys bar pie"
fakeit_Dinner	Dinner food	"Wild addicting dip"
fakeit_Snack	Snack	"Trail mix"
fakeit_Dessert	Dessert	"French napoleons"

Misc

Function	Description	Example Output
fakeit_Bool	Random boolean	true
fakeit_FlipACoin	Flip a coin	"Heads"

Color

Function	Description	Example Output
fakeit_Color	Color name	"MediumOrchid"
fakeit_HexColor	Hex color	"#a99fb4"
fakeit_RGBColor	RGB color	[85, 224, 195]
fakeit_SafeColor	Safe color	"black"
fakeit_NiceColors	Nice color palette	["#cfffdd", "#b4dec1", "#5c5863", "#a85163", "#ff1f4c"]

Image

Function	Description	Example
fakeit_ImageJpeg(width int, height int)	Generate JPEG image bytes	{{ fakeit_ImageJpeg 100 100 }}
fakeit_ImagePng(width int, height int)	Generate PNG image bytes	{{ fakeit_ImagePng 100 100 }}

Internet

Function	Description	Example Output
fakeit_URL	Random URL	"http://www.principalproductize.biz/target"
fakeit_UrlSlug(words int)	URL slug with specified word count	{{ fakeit_UrlSlug 3 }} → "bathe-regularly-quiver"
fakeit_DomainName	Domain name	"centraltarget.biz"
fakeit_DomainSuffix	Domain suffix	"org"
fakeit_IPv4Address	IPv4 address	"222.83.191.222"
fakeit_IPv6Address	IPv6 address	"2001:cafe:8898:ee17:bc35:9064:5866:d019"
fakeit_MacAddress	MAC address	"cb:ce:06:94:22:e9"
fakeit_HTTPStatusCode	HTTP status code	200
fakeit_HTTPStatusCodeSimple	Simple status code	404
fakeit_LogLevel(logType string)	Log level (types: general, syslog, apache)	{{ fakeit_LogLevel "general" }} → "error"
fakeit_HTTPMethod	HTTP method	"HEAD"
fakeit_HTTPVersion	HTTP version	"HTTP/1.1"
fakeit_UserAgent	Random User-Agent	"Mozilla/5.0..."
fakeit_ChromeUserAgent	Chrome User-Agent	"Mozilla/5.0 (X11; Linux i686)..."
fakeit_FirefoxUserAgent	Firefox User-Agent	"Mozilla/5.0 (Macintosh; U;..."
fakeit_OperaUserAgent	Opera User-Agent	"Opera/8.39..."
fakeit_SafariUserAgent	Safari User-Agent	"Mozilla/5.0 (iPad;..."
fakeit_APIUserAgent	API User-Agent	"curl/8.2.5"

HTML

Function	Description	Example Output
fakeit_InputName	HTML input name	"email"
fakeit_Svg	SVG image	"<svg>...</svg>"

Date/Time

Function	Description	Example
fakeit_Date	Random date	2023-06-15 14:30:00
fakeit_PastDate	Past date	2022-03-10 09:15:00
fakeit_FutureDate	Future date	2025-12-20 18:45:00
fakeit_DateRange(start time.Time, end time.Time)	Random date between start and end	{{ fakeit_DateRange (strings_ToDate "2020-01-01") (strings_ToDate "2025-12-31") }}
fakeit_NanoSecond	Nanosecond	123456789
fakeit_Second	Second (0-59)	45
fakeit_Minute	Minute (0-59)	30
fakeit_Hour	Hour (0-23)	14
fakeit_Month	Month (1-12)	6
fakeit_MonthString	Month name	"June"
fakeit_Day	Day (1-31)	15
fakeit_WeekDay	Weekday	"Monday"
fakeit_Year	Year	2024
fakeit_TimeZone	Timezone	"America/New_York"
fakeit_TimeZoneAbv	Timezone abbreviation	"EST"
fakeit_TimeZoneFull	Full timezone	"Eastern Standard Time"
fakeit_TimeZoneOffset	Timezone offset	-5
fakeit_TimeZoneRegion	Timezone region	"America"

Payment

Function	Description	Example
fakeit_Price(min float64, max float64)	Random price in range	{{ fakeit_Price 1 100 }} → 92.26
fakeit_CreditCardCvv	CVV	"513"
fakeit_CreditCardExp	Expiration date	"01/27"
fakeit_CreditCardNumber(gaps bool)	Credit card number. gaps: add spaces between groups	{{ fakeit_CreditCardNumber true }} → "4111 1111 1111 1111"
fakeit_CreditCardType	Card type	"Visa"
fakeit_CurrencyLong	Currency name	"United States Dollar"
fakeit_CurrencyShort	Currency code	"USD"
fakeit_AchRouting	ACH routing number	"513715684"
fakeit_AchAccount	ACH account number	"491527954328"
fakeit_BitcoinAddress	Bitcoin address	"1BoatSLRHtKNngkdXEeobR76b53LETtpyT"
fakeit_BitcoinPrivateKey	Bitcoin private key	"5HueCGU8rMjxEXxiPuD5BDuG6o5xjA7QkbPp"
fakeit_BankName	Bank name	"Wells Fargo"
fakeit_BankType	Bank type	"Investment Bank"

Finance

Function	Description	Example Output
fakeit_Cusip	CUSIP identifier	"38259P508"
fakeit_Isin	ISIN identifier	"US38259P5089"

Company

Function	Description	Example Output
fakeit_BS	Business speak	"front-end"
fakeit_Blurb	Company blurb	"word"
fakeit_BuzzWord	Buzzword	"disintermediate"
fakeit_Company	Company name	"Moen, Pagac and Wuckert"
fakeit_CompanySuffix	Company suffix	"Inc"
fakeit_JobDescriptor	Job descriptor	"Central"
fakeit_JobLevel	Job level	"Assurance"
fakeit_JobTitle	Job title	"Director"
fakeit_Slogan	Company slogan	"Universal seamless Focus, interactive."

Hacker

Function	Description	Example Output
fakeit_HackerAbbreviation	Hacker abbreviation	"ADP"
fakeit_HackerAdjective	Hacker adjective	"wireless"
fakeit_HackeringVerb	Hackering verb	"connecting"
fakeit_HackerNoun	Hacker noun	"driver"
fakeit_HackerPhrase	Hacker phrase	"If we calculate the program, we can get to the AI pixel through the redundant XSS matrix!"
fakeit_HackerVerb	Hacker verb	"synthesize"

Hipster

Function	Description	Example
fakeit_HipsterWord	Hipster word	"microdosing"
fakeit_HipsterSentence	Hipster sentence	"Soul loops with you probably haven't heard of them undertones."
fakeit_HipsterParagraph	Hipster paragraph	"Single-origin austin, double why. Tag it Yuccie, keep it any..."

App

Function	Description	Example Output
fakeit_AppName	App name	"Parkrespond"
fakeit_AppVersion	App version	"1.12.14"
fakeit_AppAuthor	App author	"Qado Energy, Inc."

Animal

Function	Description	Example Output
fakeit_PetName	Pet name	"Ozzy Pawsborne"
fakeit_Animal	Animal	"elk"
fakeit_AnimalType	Animal type	"amphibians"
fakeit_FarmAnimal	Farm animal	"Chicken"
fakeit_Cat	Cat breed	"Chausie"
fakeit_Dog	Dog breed	"Norwich Terrier"
fakeit_Bird	Bird	"goose"

Emoji

Function	Description	Example Output
fakeit_Emoji	Random emoji	"🤣"
fakeit_EmojiCategory	Emoji category	"Smileys & Emotion"
fakeit_EmojiAlias	Emoji alias	"smile"
fakeit_EmojiTag	Emoji tag	"happy"
fakeit_EmojiFlag	Flag emoji	"🇺🇸"
fakeit_EmojiAnimal	Animal emoji	"🐱"
fakeit_EmojiFood	Food emoji	"🍕"
fakeit_EmojiPlant	Plant emoji	"🌸"
fakeit_EmojiMusic	Music emoji	"🎵"
fakeit_EmojiVehicle	Vehicle emoji	"🚗"
fakeit_EmojiSport	Sport emoji	"⚽"
fakeit_EmojiFace	Face emoji	"😊"
fakeit_EmojiHand	Hand emoji	"👋"
fakeit_EmojiClothing	Clothing emoji	"👕"
fakeit_EmojiLandmark	Landmark emoji	"🗽"
fakeit_EmojiElectronics	Electronics emoji	"📱"
fakeit_EmojiGame	Game emoji	"🎮"
fakeit_EmojiTools	Tools emoji	"🔧"
fakeit_EmojiWeather	Weather emoji	"☀️"
fakeit_EmojiJob	Job emoji	"👨‍💻"
fakeit_EmojiPerson	Person emoji	"👤"
fakeit_EmojiGesture	Gesture emoji	"🙌"
fakeit_EmojiCostume	Costume emoji	"🎃"
fakeit_EmojiSentence	Emoji sentence with random emojis interspersed	"Weekends reserve time for 🖼️ Disc 🏨 golf and day."

Language

Function	Description	Example Output
fakeit_Language	Language	"English"
fakeit_LanguageAbbreviation	Language abbreviation	"en"
fakeit_ProgrammingLanguage	Programming language	"Go"

Number

Function	Description	Example
fakeit_Number(min int, max int)	Random number in range	{{ fakeit_Number 1 100 }} → 42
fakeit_Int	Random int	{{ fakeit_Int }}
fakeit_IntN(n int)	Random int from 0 to n	{{ fakeit_IntN 100 }}
fakeit_Int8	Random int8	{{ fakeit_Int8 }}
fakeit_Int16	Random int16	{{ fakeit_Int16 }}
fakeit_Int32	Random int32	{{ fakeit_Int32 }}
fakeit_Int64	Random int64	{{ fakeit_Int64 }}
fakeit_Uint	Random uint	{{ fakeit_Uint }}
fakeit_UintN(n uint)	Random uint from 0 to n	{{ fakeit_UintN 100 }}
fakeit_Uint8	Random uint8	{{ fakeit_Uint8 }}
fakeit_Uint16	Random uint16	{{ fakeit_Uint16 }}
fakeit_Uint32	Random uint32	{{ fakeit_Uint32 }}
fakeit_Uint64	Random uint64	{{ fakeit_Uint64 }}
fakeit_Float32	Random float32	{{ fakeit_Float32 }}
fakeit_Float32Range(min float32, max float32)	Random float32 in range	{{ fakeit_Float32Range 0 100 }}
fakeit_Float64	Random float64	{{ fakeit_Float64 }}
fakeit_Float64Range(min float64, max float64)	Random float64 in range	{{ fakeit_Float64Range 0 100 }}
fakeit_RandomInt(slice []int)	Random int from slice	{{ fakeit_RandomInt (slice_Int 1 2 3) }}
fakeit_HexUint(bits int)	Random hex uint with specified bits	{{ fakeit_HexUint 8 }} → "0xff"

String

Function	Description	Example
fakeit_Digit	Single random digit	"0"
fakeit_DigitN(n uint)	Generate n random digits	{{ fakeit_DigitN 5 }} → "71364"
fakeit_Letter	Single random letter	"g"
fakeit_LetterN(n uint)	Generate n random letters	{{ fakeit_LetterN 10 }} → "gbRMaRxHki"
fakeit_Lexify(pattern string)	Replace ? with random letters	{{ fakeit_Lexify "?????@??????.com" }} → "billy@mister.com"
fakeit_Numerify(pattern string)	Replace # with random digits	{{ fakeit_Numerify "(###)###-####" }} → "(555)867-5309"
fakeit_RandomString(slice []string)	Random string from slice	{{ fakeit_RandomString (slice_Str "a" "b" "c") }}

Celebrity

Function	Description	Example Output
fakeit_CelebrityActor	Celebrity actor	"Brad Pitt"
fakeit_CelebrityBusiness	Celebrity business	"Elon Musk"
fakeit_CelebritySport	Celebrity sport	"Michael Phelps"

Minecraft

Function	Description	Example Output
fakeit_MinecraftOre	Minecraft ore	"coal"
fakeit_MinecraftWood	Minecraft wood	"oak"
fakeit_MinecraftArmorTier	Armor tier	"iron"
fakeit_MinecraftArmorPart	Armor part	"helmet"
fakeit_MinecraftWeapon	Minecraft weapon	"bow"
fakeit_MinecraftTool	Minecraft tool	"shovel"
fakeit_MinecraftDye	Minecraft dye	"white"
fakeit_MinecraftFood	Minecraft food	"apple"
fakeit_MinecraftAnimal	Minecraft animal	"chicken"
fakeit_MinecraftVillagerJob	Villager job	"farmer"
fakeit_MinecraftVillagerStation	Villager station	"furnace"
fakeit_MinecraftVillagerLevel	Villager level	"master"
fakeit_MinecraftMobPassive	Passive mob	"cow"
fakeit_MinecraftMobNeutral	Neutral mob	"bee"
fakeit_MinecraftMobHostile	Hostile mob	"spider"
fakeit_MinecraftMobBoss	Boss mob	"ender dragon"
fakeit_MinecraftBiome	Minecraft biome	"forest"
fakeit_MinecraftWeather	Minecraft weather	"rain"

Book

Function	Description	Example Output
fakeit_BookTitle	Book title	"Hamlet"
fakeit_BookAuthor	Book author	"Mark Twain"
fakeit_BookGenre	Book genre	"Adventure"

Movie

Function	Description	Example Output
fakeit_MovieName	Movie name	"Inception"
fakeit_MovieGenre	Movie genre	"Sci-Fi"

Error

Function	Description	Example Output
fakeit_Error	Random error	"connection refused"
fakeit_ErrorDatabase	Database error	"database connection failed"
fakeit_ErrorGRPC	gRPC error	"rpc error: code = Unavailable"
fakeit_ErrorHTTP	HTTP error	"HTTP 500 Internal Server Error"
fakeit_ErrorHTTPClient	HTTP client error	"HTTP 404 Not Found"
fakeit_ErrorHTTPServer	HTTP server error	"HTTP 503 Service Unavailable"
fakeit_ErrorRuntime	Runtime error	"panic: runtime error"

School

Function	Description	Example Output
fakeit_School	School name	"Harvard University"

Song

Function	Description	Example Output
fakeit_SongName	Song name	"Bohemian Rhapsody"
fakeit_SongArtist	Song artist	"Queen"
fakeit_SongGenre	Song genre	"Rock"