https://github.com/riennevaplus/gtin-manager

🏷️ Generates a list of EANs / GTINs for a given Global Company Prefix (GPC / Basisnummer)
https://github.com/riennevaplus/gtin-manager

ean ean-code ean-list ean13 generator gtin gtin-codes gtin-generator gtin-list gtin-toolkit node-js

Last synced: over 1 year ago
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🏷️ Generates a list of EANs / GTINs for a given Global Company Prefix (GPC / Basisnummer)

• Host: GitHub
• URL: https://github.com/riennevaplus/gtin-manager
• Owner: RienNeVaPlus
• License: mit
• Created: 2020-09-24T02:39:33.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2021-11-06T03:30:40.000Z (over 4 years ago)
• Last Synced: 2025-03-13T08:08:57.111Z (over 1 year ago)
• Topics: ean, ean-code, ean-list, ean13, generator, gtin, gtin-codes, gtin-generator, gtin-list, gtin-toolkit, node-js
• Language: JavaScript
• Homepage:
• Size: 1.25 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
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🏷️ GTIN Manager




  Generates Global Trade Item Numbers (formerly known as EANs) for a given Global Company Prefix.





  

  

  

  



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### Setup

```ts

npm install gtin-manager

// or

yarn add gtin-manager

```

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### Usage

Create a generator instance using a GCP ([Global Company Prefix](https://www.gs1ie.org/standards/identification/global-company-prefix-gcp/)) provided by [GS1](https://www.gs1-germany.de/).

```ts

import Manager from 'gtin-manager'

const manager = new Manager('12345678')

```



`manager.contingent`

---

Returns the amount of possible GTINs that can be created from the current GCP.

```ts

manager.contingent === 10000 // true

```



`manager.index(number)`

---

Returns GTIN / EAN for an index (which has to be inside the bounds of `manager.contingent`)

```ts

manager.index(0) === '1234567800004'    // true

manager.index(9999) === '1234567899992' // true

manager.index(10000)                    // Error: Index out of bounds

manager.index(-1)                       // Error: Index out of bounds

```



`manager.all`

---

Returns an array of all possible GTINs / EANs for the GCP.

```ts

manager.all === ['1234567800011', '1234567800028', ... 9998 more items] // true

```

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*🌻 Thanks to [xbpf/gtin](https://github.com/xbpf/gtin) for providing functions used in this repository.*