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https://github.com/bombsimon/go-personnummer
🔢 Validate Swedish personal identity numbers
https://github.com/bombsimon/go-personnummer
Last synced: 17 days ago
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🔢 Validate Swedish personal identity numbers
- Host: GitHub
- URL: https://github.com/bombsimon/go-personnummer
- Owner: bombsimon
- License: mit
- Created: 2018-04-27T20:23:11.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2022-03-22T07:02:22.000Z (almost 3 years ago)
- Last Synced: 2024-12-24T01:50:16.164Z (26 days ago)
- Language: Go
- Homepage:
- Size: 50.8 KB
- Stars: 1
- Watchers: 2
- Forks: 4
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-sweden - Go
README
# Swedish Identification Numbers
[](https://github.com/bombsimon/go-personnummer/actions/workflows/go.yml)
[](https://godoc.org/github.com/bombsimon/go-personnummer)
This package aims to provide a toolbox to handle Swedish identification numbers
of three different types; social security numbers (or personal numbers),
coordination numbers and organization numbers. They are all validated using the
[Luhn algorithm](https://en.wikipedia.org/wiki/Luhn_algorithm) with some
exceptions to the coordination number.
In addition to the correct checksum calculated with the Luhn algorithm, the
following rules applies:
* Divider between digits and control numbers may only be divided with `-`, or
`+`
* A social security number must be a valid date
* An organization numbers third digit must be >= 2
* A coordination number must have a date where day value is > 60
## Extra data
Some extra data may be extracted from a social security number regarding the
person or the organization number regarding companies.
### Private person
The `Person` type holds and implements these things.
* `IsCoordination` tells if the person has a coordination number
* `Date` is a `time.Time` type with the birth date
* `County` holds the county code for people born before 1990
* `Gender` holds whether the person is a `Male` or `Female`
* `Zodiac` holds the persons zodiac sign (e.g. Aries)
* `Age()` can tell the persons age (in UTC timezone)
* `IsOfAge(n int)` can tell if the person is `n` (or above)
* `Male()` is true if it's a `Male`
* `Female()` is true if it's a `Female`
### Organization
The `Organization` type holds and implements these things.
* `CompanyForm` hods the guessed form for the company
## Validation
Just validate number with Luhn algorithm independent of type.
```go
parsed, err := Parse("552099-1122")
if err != nil {
panic("could not parse")
}
if !parsed.Valid() {
panic("this is not a valid luhn number")
}
```
Validate a social security number or coordination number. The interface supports
strings, integers and floats of the most common types.
```go
// I just care for validation
if IsValidPerson("800101-3294") {
return RealFood()
}
if !IsValidPerson(800101329) {
return MaybeMetal()
}
// But for these I actually care!
person, err := NewPerson("20090314-6603")
if err != nil {
panic("what now?!")
}
if !person.Valid() {
return NotEvenForBabies()
}
if person.Female() && person.IsOfAge(16) {
return TimeToStartDriving()
}
```
The interface to validate organizations is the same.
```go
if !IsValidOrganization("556703-7485") {
return NoGo()
}
```
If you want to skip parsing multiple times you can construct types from a parsed
type.
```go
parsed, err := Parse("800101-3294")
if err != nil {
panic("no?")
}
person, _ := NewPersonFromParsed(parsed)
org, _ := NewOrganizationFromParsed(parsed)
// Any valid goes!
return person.Valid() || org.Valid()
// Perform the validation without keeping the types and only parse once.
return parsed.ValidPerson() || parsed.ValidOrganization()
```
## Generation
In addition to validation this package also provide support to generate social
security numbers for private persons. This is great for testing purposes. There
are two interfaces, one where everything is random (age and sex) and one where
you provided it.
```go
// Just give me something!
validPerson, err := GenerateAny()
if err != nil {
panic("oh lord")
}
// Or maybe with some preferences.
t, _ := time.Parse("2006-01-02", "1999-02-20")
girlFrom99, err := Generate(t, Female)
if err != nil {
panic("no Spice Girl I guess?!")
}
```