SweIdNum

Validate swedish identity numbers

Installation

Add the GlobalPhone nuget package to your app. For example, using Package Manager Console:

PM> Install-Package SweIdNum

Examples

c#

First make sure to import the relevant namespaces

using SweIdNum;
using SweIdNum.Core;

Then you can parse swedish personal identity numbers

try{
  var tolvansson = PersonalIdentityNumbers.Parse("121212-1212");
  var birthdate = tolvansson.GetDate();
} catch (DoesNotMatchFormatException){
  // ...
} catch (InvalidChecksumException){
  // ...
}

If you don't want to handle potential exceptions then you use the TryParse method

if (PersonalIdentityNumbers.TryParse("121212-1212", out tolvansson)) 
{
  // to stuff
}

f#

First make sure to import the relevant namespaces. In the code below we import the module PersonalIdentityNumbers for brevity.

open SweIdNum;
open SweIdNum.Core.PersonalIdentityNumbers

Note that the parse below will throw an exception if you feed it an invalid value

let tolvansson = parse "121212-1212"
let birthdate = getDate tolvansson 

If you are unsure if it's correct and want to handle it in a more f#y way, then use tryParse

let maybeTolvansson = tryParse "121212-1212"
match maybeTolvansson with
| Choice1Of2 tolvansson -> 
    //...
| Choice2Of2 err ->
    match err with
    | DoesNotMatchFormat -> //...
    | InvalidChecksum (expected,actual) -> //...

Influences

R package sweidnumbr