# Other formulas

This section covers formulas that work with a number of data types.

# null

Gives a null/nil value. Note: passing this into an input field will not update the field value as null. Use clear formula to update a field value to null. Remember to toggle the field to formula mode.

Null formula in input field


# clear

Clears the value of the field in the target app to null/nil. Remember to toggle the field to formula mode.

Clear formula in input field Use clear formula instead of null when looking to clear field in target app


# skip

Passes nothing to the destination app for this field. If the field has an existing value, it will be left untouched.

# Example

This example attempts use an updated Salesforce record to update a lead in Marketo. It checks if the Salesforce Company is present. If yes, it will output the Salesforce Company into Marketo. Otherwise, the Marketo record is left untouched.

skip formula in input field Skip formula example use case

Skip this field if update datapill is empty

Use skip formula to leave existing values untouched in an update action.


# uuid

Generates an UUID.

# Example

Example Result
uuid "c52d735a-aee4-4d44-ba1e-bcfa3734f553"

# encrypt

Encrypts the input string with a secret key using AES-256-CBC algorithm. Encrypted output string is packed in RNCryptor V3 (opens new window) format and base64 encoded.

Note: The encryption key should not be hard coded in the recipe. Use account properties (with key or password in the name) to store the encryption keys.

# Example

encrypt([ssn], [encryption_key])


# decrypt

Decrypts the encrypted input string with a secret key using AES-256-CBC algorithm. Encrypted input string should be packed in RNCryptor V3 (opens new window) format and base64 encoded.

Note: The encryption key should not be hard coded in the recipe. Use account properties (with key or password in the name) to store the encryption keys.

# Example

decrypt([encrypted_ssn], [encryption_key])


# encode_sha256

Encodes a string or binary array using SHA256 algorithm

# Example

"hello".encode_sha256


# encode_hex

Converts binary string to its hex representation

# Example

Example Result
"0101010101011010".encode_hex "30313031303130313031303131303130"

# decode_hex

Decode hexadecimal into binary string

# Example

Example Result
"30313031303130313031303131303130".decode_hex "0101010101011010"

# decode_url

URL decode a string. This formula uses CGI.unescape to URL decoding.

# Example

Example Result
'https%3A%2F%2Fworkato.com%2Ffoo%3Fbar%3Dat%23anchor'.decode_url "https://workato.com/foo?bar=at#anchor (opens new window)"
'%27Stop%21%27+said+Fred"'.decode_url "'Stop!' said Fred"

# encode_base64

Encode using Base64 algorithm

# Example

Example Result
"Hello World!".encode_base64 "aGVsbG8gd29ybGQh"

# decode_base64

Decode using Base64 algorithm

# Example

Example Result
"aGVsbG8gd29ybGQh".decode_base64 "Hello World!"

# encode_url

URL encode a string

# Example

Example Result
"Hello World".encode_url "Hello%20World"

# encode_urlsafe_base64

Encode using urlsafe modification of Base64 algorithm

# Example

Example Result
"Hello World".encode_urlsafe_base64 "SGVsbG8gV29ybGQ="

# decode_urlsafe_base64

Decode using urlsafe modification of Base64 algorithm

# Example

Example Result
"SGVsbG8gV29ybGQ".decode_urlsafe_base64 "Hello World"

# as_string

Decode byte sequence as string in given encoding

# Example

Example Result
"SGVsbG8gV29ybGQ=".decode_base64.as_string('utf-8') "Hello World"

# as_utf8

Decode byte sequence as UTF-8 string

# Example

Example Result
"SGVsbG8gV29ybGQ=".decode_base64.as_utf8 "Hello World"

# to_hex

Converts binary string to its hex representation

# Example

Example Result
"SGVsbG8gV29ybGQ=".decode_base64.to_hex "48656c6c6f20576f726c64"

# SHA1

Encrypts a given string using the SHA1 encryption algorithm. Details here (opens new window)

# Example

Example Result
"abcdef".sha1.encode_base64 "H4rBDyPFtbwRZ72oS4M+XAV6d9I="

# HMAC formulae

Creates a HMAC signatures with a variety of signing algorithms

# Example

Signing algorithm Example
SHA-256 "username:password:nonce".hmac_sha256("key")
SHA-1 "username:password:nonce".hmac_sha1("key")
SHA-512 "username:password:nonce".hmac_sha512("key")
MD5 "username:password:nonce".hmac_md5("key")

# md5_hexdigest

Accepts a string and creates message digest using the MD5 Message-Digest Algorithm

# Example

Example Result
"hello".md5_hexdigest "5d41402abc4b2a76b9719d911017c592"

# jwt_encode

Creates a Jason web token (JWT) using one of the following algorithms - RS256, RS384, RS512, HS256, ES256, ES384, or ES512. Adds other named parameters to the header, such as kid in the following example:

# Example

Example Result
workato.jwt_encode({ name: "John Doe" }, "PEM key", 'RS256') "eyJhbGciO..."
workato.jwt_encode({ name: "John Doe" }, "PEM key", 'RS512', kid: "24668") "eyJ0eXAiO..."
workato.jwt_encode({ name: "John Doe" }, "my$ecretK3y", 'HS256', kid: "24668") "eyJ0eXAiO..."
workato.jwt_encode({ name: "John Doe" }, "my$ecretK3y", 'HS256') "eyJ0eXAiO..."
workato.jwt_encode({ name: "John Doe" }, "ECDSA Key", 'ES256') "eyJhbGciOiJ..."

# parse_yaml

Parse a YAML string. Supports true, false, nil, numbers, strings, arrays, hashes

# Example

Example Result
workato.parse_yaml("---\nfoo: bar") "{ "foo" => "bar" }"
workato.parse_yaml("---\n- 1\n- 2\n- 3\n") "[1, 2, 3]"

# render_yaml

Render an object into a YAML string.

# Example

Example Result
workato.render_yaml({ "foo" => "bar" }) "---\nfoo: bar\n"
workato.render_yaml([1,2,3]) "---\n- 1\n- 2\n- 3\n"

# lookup

This formula allows you to lookup values from your Workato lookup tables via a key. It is case sensitive and data type sensitive.

If you use a data pill in the lookup formula, it is recommended that the data is converted to the right format. For example, integer-type data pills should be converted to string with a .to_s formula if comparing to a column containing both integers and strings.

# Example

For example, let's use the following lookup table with name Department Codes with an ID of 6:

Sample department codes lookup table Sample department codes lookup table

Example Result
lookup('Department Lookup table', 'Department code': 'ACC')['Department'] "Accounting"
lookup('Department Lookup table', 'Department code': 'SLS')['Department'] "Sales"
lookup('Department Lookup table', 'Department': 'Marketing')['Department code'] "MKT"
lookup('Department Lookup table', 'Department': 'marketing')['Department code'] nil
Matching is case sensitive, unable to find value "Marketing"
lookup('Department Lookup table', 'Department': 'Marketing')['Department Code'] nil
Matching is case sensitive, unable to find column "Department Code"
lookup('6', 'Department code': 'ACC')['Department'] "Accounting"
Note: Remember to enclose the lookup table ID in quotes "".

Using Lookup ID

You can using the lookup table name and lookup table ID interchangeability. You can find the lookup table ID in the URL.

For example:

https://app.workato.com/lookup_tables/<lookup_table_id>

# lookup_table

This formula allows you to create a static lookup table and define the keys and values. It is case-sensitive and datatype-sensitive.

# Example

Example Result
{"key1" => "value1", "key2" => "value2", "key3" => "value3"}["key2"] "value2"
{"High" => "urgent", "Medium" => "mid", "Low" => "normal"}["Low"] "normal"
{"High" => "urgent", "Medium" => "mid", "Low" => "normal"}["low"] nil
{"High" => "urgent", "Medium" => "mid", "Low" => "normal"}["normal"] nil
{1 => "1", 2 => "2", 3 => "3"}[2] "2"
{1 => "1", 2 => "2", 3 => "3"}[2.0] nil
{1 => "1", 2 => "2", 3 => "3"}["2"] nil