Get a Parameter within a URL Using a Regular Expression in Nintex Workflow

Recently had a need to extract a parameter from within a URL string using Nintex Workflow.  Specifically, I needed to get the ID parameter from a URL.  In the example URL below, I needed to extract the number 987:

//mysite/mypage.aspx?ID=987&User=654

Follow these steps to get the ID number:

1. Open the Nintex Workflow designer and add a Regular Expression action.
2. Configure the Regular Expression action with the following settings:
   • Pattern =  (?<=ID=)[^&]+
   • Operation = Extract
   • Input Text = String, Inserted Reference or Workflow Variable
   • Store Result In = Collection workflow variable
   • Note: Your can use the “Run Now” option in the ribbon to test out the action.
3. Next add a Collection Operation Action with the following settings:
   • Target Collection = Collection workflow variable
   • Operation = Get
   • Index = Integer workflow variable (with “Default value” = 0)
   • Store Result In = Text workflow variable
4. The value (987 in the example) is stored in the Text workflow variable and can be used else where within your workflow.