https://github.com/fiware/tutorials.relationships-linked-data

:blue_book: FIWARE 602: Linked Data Relationships and Data Models
https://github.com/fiware/tutorials.relationships-linked-data

entity-relationships fiware json-ld linked-data ngsi-ld tutorial

Last synced: 6 months ago
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:blue_book: FIWARE 602: Linked Data Relationships and Data Models

• Host: GitHub
• URL: https://github.com/fiware/tutorials.relationships-linked-data
• Owner: FIWARE
• License: mit
• Created: 2019-07-29T15:02:57.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2025-02-17T13:57:41.000Z (12 months ago)
• Last Synced: 2025-04-30T18:36:07.383Z (9 months ago)
• Topics: entity-relationships, fiware, json-ld, linked-data, ngsi-ld, tutorial
• Language: Shell
• Homepage: https://www.fiware.org/developers/
• Size: 498 KB
• Stars: 3
• Watchers: 3
• Forks: 6
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
[![FIWARE Banner](https://fiware.github.io/tutorials.Relationships-Linked-Data/img/fiware.png)](https://www.fiware.org/developers)

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[![License: MIT](https://img.shields.io/github/license/fiware/tutorials.Relationships-Linked-Data.svg)](https://opensource.org/licenses/MIT)

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[![JSON LD](https://img.shields.io/badge/JSON--LD-1.1-f06f38.svg)](https://w3c.github.io/json-ld-syntax/)

This tutorial discusses relationships between linked data entities and how the concepts of **JSON-LD** and **NGSI-LD**

can be used to interrogate entities and navigate from one entity to another. The tutorial discusses a series of simple

linked-data data models based around the supermarket chain’s store finder application, and demonstrates how to design

models holding one-to-one, one-to-many and many-to-many relationships. This **NGSI-LD** tutorial is a direct analogue to

the earlier _Understanding Entities and Relationships_ tutorial (which was based on the **NGSI v2** interface). The

differences in relationships created using **NGSI v2** and **NGSI-LD** are highlighted and discussed in detail.

The tutorial uses [cUrl](https://ec.haxx.se/) commands throughout, but is also available as

[Postman documentation](https://www.postman.com/downloads/).

# Start-Up

## NGSI-LD Smart Supermarket

**NGSI-LD** offers JSON-LD based interoperability used for Federations and Data Spaces. To run this **NGSI-LD** tutorial for **NGSI-v2** developers, use the `NGSI-v2` branch.

```console

git clone https://github.com/FIWARE/tutorials.Relationships-Linked-Data.git

cd tutorials.Relationships-Linked-Data

git checkout NGSI-v2

./services create

./services start

```

| [![NGSI LD](https://img.shields.io/badge/NGSI-LD-d6604d.svg)](https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.08.01_60/gs_cim009v010801p.pdf) | :books: [Documentation](https://github.com/FIWARE/tutorials.Relationships-Linked-Data/tree/NGSI-v2) |  [Postman Collection](https://fiware.github.io/tutorials.Relationships-Linked-Data/) |  ![](https://img.shields.io/github/last-commit/fiware/tutorials.Relationships-Linked-Data/NGSI-v2)

| --- | --- | --- | ---

---

## License

[MIT](LICENSE) © 2019-2024 FIWARE Foundation e.V.