To apply functions to a dynamic variable or a static variable you must wrap the chosen function in the double curly brackets syntax: {{}} , as seen in the following example. In the following example we are using the decode_base_64(s) string manipulation function to decode a Base64-encoded string (a static variable) and return the original decoded string.
You can also use Utility Actions to apply specific function logic to dynamic variables throughout the workflow.

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Supported Functions

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String Manipulation Functions

FunctionDescription
split(s, sep)Slices s into all substrings separated by sep and returns a slice of the substrings between those separators.
trim(s, cutset)Returns a slice of the string s with all leading and trailing Unicode code points contained in cutset removed.
trim_space(s)Returns a slice of the string s, with all leading and trailing white space removed, as defined by Unicode.
trim_prefix(s)Returns s without the provided leading prefix string. If s doesn’t start with prefix, s is returned unchanged.
trim_suffix(s)Returns s without the provided trailing suffix string. If s doesn’t end with suffix, s is returned unchanged.
str(input)Converts an input to a string value.
max_str(input)Receives a list of strings and returns the largest one (by lexicographical order.)
max_num(input)Receives a list of numbers and returns the largest one.
query_escape(input)Escapes the given string into URL query encoding.
Example: query_escape("hello world!") -> "hello-world%21
query_unescape(input)Decodes the given URL query encoded string.
Example: query_unescape("hello-world%21") -> "hello world!"
encode_base_64(input)Encodes any input value to a Base64-encoded string.
decode_base_64(s)Decodes a Base64-encoded string and returns the original decoded string.
is_uuid(input)Checks if the input string is a valid UUID.
Returns true if it’s a valid UUID format, false otherwise.

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Table Manipulation Functions

FunctionDescription
table_to_csv(input)Produces CSV output from a table format step output.
table_to_ascii(input)Produces ASCII table output from a table format step output.
table_to_html(input)Produces HTML table output from table step output.
prettify_json(input)Format a JSON with human-readable spacing.

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Array Functions

FunctionDescription
reverse(arr)Returns an array in reverse order of its indices.
empty(arr)Checks whether an array or string is empty.
not_empty(arr)Checks whether an array or string is not empty.

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Generator Function

FunctionDescription
random_uuid()Returns a randomly generated UUID.
For example b27c9b25-7af4-4f63-a7e0-46bfe92dd156
random(num1,num2)Returns a randomly generated number between two values.
For example random(1,7) -> 4

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Supported Date-Time Functions

Please note that the following date & time formats are accepted.
  1. Epoch time in seconds: 1725916800
  2. Epoch time in milliseconds: 1725916800000
  3. RFC3339: 2006-01-02T15:04:05Z07:00
  4. ISO: 2006-01-02T15:04:05Z0700
  5. RFC3339 Nano: 2006-01-02T15:04:05.999999999Z07:00
The default date format is dates in UTC timezone in RFC3339 format.

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Now | NowUnix | NowUnixMili | MaxDate

FunctionDescription
now()Returns the current time in timestamp format. Example output: 2022-07-28T15:02:26Z.
now_unix()Returns the elapsed epoch current time. Example output: 1659020794.
now_unix_mili()Returns the elapsed epoch current time in milliseconds format. Example output: 1659020794000.
max_date(input)MaxDate receives a list of dates and returns the most recent one.

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Date Arithmetic

To add and subtract time interval from another time use + and - 
to_date("2022-11-13T08:26:02Z") + "3h"  ==> 2022-11-13T11:26:02Z
to_date("2022-11-13T08:26:02Z") - "5m"  ==> 2022-11-13T08:21:02Z
Supported intervals: 
	"s":  Second
	"m":  Minute
	"h":  Hour
Note Day, Month and Year are not supported because they have variable lengths.

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To Date

Use to_date to transform date string representation or date represented as Epoch time (seconds since 1970-01-01) into date. This enables performing date operations on the date such as +/-. 
to_date("2022-11-13T08:26:02Z") + "3h"  ==> 2022-11-13T11:26:02Z
to_date(211863600) ==> 1976-09-18T03:00:00Z

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To Epoch

Transforms the date string into Epoch time (seconds since 1970-01-01). Also works with input which is already an Epoch, in which case it returns the input as is. 
to_epoch("1976-09-18T03:00:00Z") ==> 211863600
to_epoch("211863600") ==> 211863600

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To Epoch Mili

Transforms the date string into Epoch Milliseconds time (seconds since 1970-01-01). Also works with input which is already an Epoch Milliseconds, in which case it returns the input as is. 
to_epoch_mili("1976-09-18T03:00:00Z") ==> 211863600000
to_epoch_mili("211863600000") ==> 211863600000

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To Local Time

Format the date as local time in a given time zone. Accepts dates as Epoch time or string in RFC3339 format. 
to_local_time("2020-01-31T18:09:41Z", "UTC")
  ==>  2020-01-31T18:09:41Z
to_local_time("2020-01-31T18:09:41Z", "Europe/Berlin")
  ==> 2020-01-31T19:09:41+01:00
to_local_time("2020-01-31T18:09:41Z", "America/New_York")
  ==> 2020-01-31T13:09:41-05:00

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Date Format

Format the date in user requested format. Inputs are:
  1. Layout in Golang date format convention.
  2. Input date in RFC3339 format or as an Epoch time (seconds since 1970-01-01).
date_format("2006-01-02T15:04:05.000Z", "2022-07-07T15:14:12Z")
   ==>  2022-07-07T15:14:12.000Z
date_format("2006-01-02", "2022-07-07T15:14:12Z")
	 ==> 2022-07-07
date_format("2006-01-02", "2022-07-07T15:14:12Z") + "24h"
	 ==> 2022-07-08