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GS1 parser and generator for C#

Encodes and decodes GTIN numbers (EAN-8 and EAN-13) with support for products having variable weight and price.

Documentation

Locales

Each member country of GS1 have their own specification for products with variable weight and price, magazines and coupons. This is handled by this library by defining encoding rules in "locales".

Currently only the Sweden locale is implemented.

Generate GTIN

Start by creating an entity:

Kekos.Gs1.Entity.WeightProduct entity = new Kekos.Gs1.Entity.WeightProduct(sku, weight);
Kekos.Gs1.Entity.PriceProduct entity = new Kekos.Gs1.Entity.PriceProduct(sku, price);
Kekos.Gs1.Entity.Publication entity = new Kekos.Gs1.Entity.Publication(sku, price);
Kekos.Gs1.Entity.Coupon entity = new Kekos.Gs1.Entity.Coupon(id, discount);

Use GtinFactory class by specifying which locale to use:

Kekos.Gs1.Gtin.Gtin code = Kekos.Gs1.GtinFactory.Get("Sweden", entity);
Console.WriteLine(code);

Parse GTIN

Create a GTIN entity:

Kekos.Gs1.Gtin.Gtin13 gtin = new Kekos.Gs1.Gtin.Gtin13(code);
Kekos.Gs1.Gtin.Gtin8 gtin = new Kekos.Gs1.Gtin.Gtin8(code);

Use EntityFactory class by specifying which locale to use:

Kekos.Gs1.Entity.AbstractEntity entity = Kekos.Gs1.EntityFactory.Get("Sweden", gtin);
if (entity is Kekos.Gs1.Entity.WeightProduct)
{
  Console.WriteLine("Weight: " + entity.Weight);
}

Product entity

Kekos.Gs1.Entity.Product product = new Kekos.Gs1.Entity.Product(string sku, string company_prefix);
// Properties
product.Sku;
product.CompanyPrefix;

Weight product entity

Kekos.Gs1.Entity.WeightProduct product = new Kekos.Gs1.Entity.WeightProduct(string sku, float weight);
// Properties
product.Sku;
product.Weight;

Price product entity

Kekos.Gs1.Entity.PriceProduct product = new Kekos.Gs1.Entity.PriceProduct(string sku, float price);
// Properties
product.Sku;
product.Price;

Coupon entity

Kekos.Gs1.Entity.Coupon coupon = new Kekos.Gs1.Entity.Coupon(string id, float value);
// Properties
coupon.Id;
coupon.Value;

Publication entity

Kekos.Gs1.Entity.Publication publication = new Kekos.Gs1.Entity.Publication(string sku, float price);
// Properties
publication.Sku;
publication.Price;

GTIN-13 entity (EAN-13) and GTIN-8 entity (EAN-8)

When setting the code you don't have to specify the checksum (digit 8 or 13). The Gtin classes will add the checksum automatically if needed.

Kekos.Gs1.Gtin.Gtin8 gtin = new Kekos.Gs1.Gtin.Gtin8(string code);
// ...or
Kekos.Gs1.Gtin.Gtin13 gtin = new Kekos.Gs1.Gtin.Gtin13(string code);

// Properties
gtin.Code;

// Methods
gtin.IsValid(); // returns int
gtin.GetChecksum(); // returns bool
gtin.ToString();

Bugs and improvements

Report bugs in GitHub issues or feel free to make a pull request :-)

License

MIT

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Encodes and decodes GTIN numbers (EAN-8 and EAN-13)

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