Regular expressions

Use regular expressions as a value for your step properties to check whether a search value contains a string that matches the regular expression.

API simulation uses the .NET Framework syntax for regular expressions.

Define regular expressions using the syntax {REGEX["<regular expression>"]} with the Verify or Trigger step properties.

In this example, you run a service named Service03:

  1. With the trigger inbound step property, the service waits for a message that contains telephone numbers in various possible formats as the value of the Path property.

    The pattern includes:

    • (((00|\+)(420|43))|0): finds 00420, 0043, +420, +43, or 0

    • \s?: possible space

    • \d+: one or more digits

    • /?: possible forward slash

    • (\s?\d)+: string of digits with possible whitespace in between

    The possible search results include +43664 1234567, 0699 1234 5678 9, or 00420669/1 23 456 7.

  2. If the telephone number matches, the insert outbound step property writes the value valid phone number to the payload.

Copy 
schema: SimV1

- name: Service08 
  steps:
  - direction: In
    trigger:
      - type: Path
        value: '{REGEX["(((00|\+)(420|43))|0)\s?\d+/?(\s?\d)+"]}'
  - direction: Out
    insert:
      - value: 'valid phone number'

The expression {REGEX["^\d{1,2}[ /.-]\d{1,2}[ /.-](\d{4}|\d{2})$"]} searches for dates in various formats.

The pattern includes:

  • ^: beginning of the line

  • \d{1,2}: day (one or two digits long)

  • [ /.-]: separators (space, forward slash, dot, or hyphen)

  • \d{1,2}: month (one or two digits)

  • [ /.-]: separators (space, forward slash, dot, or hyphen)

  • (\d{4}|\d{2}): year (two or four digits)

  • $: end of line

Possible search results are 9/3, 12.12.87, 1-1-1999, 11.1986, 04/23/2007, or 01.03.2000, 4.8.

Use the expression {REGEX["^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z$"]} to search for a date and time in the ISO 8601 format of Universal Time Coordinated (UTC).

The pattern includes:

  • ^: beginning of line

  • \d{4}: year (four digits)

  • -: separator (hyphen)

  • \d{2}: month (two digits)

  • -: separator (hyphen)

  • \d{2}: day (two digits)

  • T: delimiter between date and time

  • \d{2}: exactly two digits

  • :: separator (colon)

  • \d{2}: hour (two digits)

  • :: separator (colon)

  • \d{2}: second (two digits)

  • Z: time zone designator (UTC)

  • $: end of line

Possible search results are 2013-10-03T12:00:00Z, 1776-07-04T13:37:11Z, or 1993-01-01T00:00:00Z.