tutorials.NGSI-v2

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tutorials.NGSI-v2

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:department_store: :handbag: NGSI-v2 Tutorials based around a Smart Supermarket

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# Smart Supermarket Tutorials[<img src="https://img.shields.io/badge/NGSI-v2-5dc0cf.svg" width="90" align="left" />]("https://fiware-ges.github.io/orion/api/v2/stable/)[<img src="docs/img/logo.png" align="left" width="162">](https://www.fiware.org/)

[![Documentation](https://fiware.github.io/catalogue/badges/chapters/documentation.svg)](https://fiware-tutorials.rtfd.io)
[![License: MIT](https://img.shields.io/github/license/fiware/tutorials.Step-by-Step.svg)](https://opensource.org/licenses/MIT)
[![Support badge](https://img.shields.io/badge/tag-fiware-orange.svg?logo=stackoverflow)](https://stackoverflow.com/questions/tagged/fiware)
[![Docker badge](https://img.shields.io/badge/quay.io-fiware%2Ftutorials.context--provider-grey?logo=red%20hat&labelColor=EE0000)](https://quay.io/repository/fiware/tutorials.context-provider)
 [![Documentation](https://img.shields.io/readthedocs/fiware-tutorials.svg)](https://fiware-tutorials.rtfd.io)
[![CI](https://github.com/FIWARE/tutorials.NGSI-v2/workflows/CI/badge.svg)](https://github.com/FIWARE/tutorials.NGSI-v2/actions?query=workflow%3ACI)

This is a collection of tutorials for the FIWARE ecosystem designed for **NGSI-v2** developers. Each tutorial consists
of a series of exercises to demonstrate the correct use of individual FIWARE components and shows the flow of context
data within a simple Smart Solution either by connecting to a series of dummy IoT devices or manipulating the context
directly or programmatically.

| :books: [NGSI-v2 Documentation](https://fiware-tutorials.rtfd.io) | <img src="https://assets.getpostman.com/common-share/postman-logo-stacked.svg" align="center" height="25"> [Postman Collections](https://explore.postman.com/team/3mM5EY6ChBYp9D) | [![Docker Hub](https://fiware.github.io/catalogue/badges/docker/fiware.svg)](https://hub.docker.com/u/fiware) [![Quay.io](https://img.shields.io/badge/quay.io-fiware-grey?logo=red%20hat&labelColor=EE0000)](https://quay.io/organization/fiware) [![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/fiware)](https://artifacthub.io/packages/search?repo=fiware) | <img src="https://fiware.github.io/catalogue/img/fiware-emoji.png" height="20px" width="20px"/> [**developer&ZeroWidthSpace;.fiware.org**](https://www.fiware.org/developers/) |
| -------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

🇯🇵 このチュートリアルは[日本語](https://fiware-tutorials.letsfiware.jp/)でもご覧いただけます。

> [!NOTE]
>
> **Should I use NGSI-v2 or NGSI-LD?**
>
> FIWARE offers two flavours of the NGSI interfaces:
>
>
> - **NGSI-v2** offers JSON based interoperability used in individual Smart Systems
> - **NGSI-LD** offers JSON-LD based interoperability used for Federations and Data Spaces
>
> NGSI-v2 is ideal for creating individual applications offering interoperable interfaces for web services
> or IoT devices. It is easier to understand than NGSI-LD and does not require a JSON-LD `@context`
>
> However, NGSI-LD and Linked Data is necessary when creating a data space or introducing a system of
> systems aproach, and in situations requiring  interoperability across apps and organisations.
>
> More information about NGSI-LD can be found [here](https://ngsi-ld-tutorials.readthedocs.io)

<h3>Data models</h3>

The following NGSI-v2 and NGSI-LD Data models are used within the tutorials:

- <img src="https://json-ld.org/favicon.ico" align="center" height="25"/>
 <a href="https://fiware.github.io/tutorials.Step-by-Step/schema/)">Tutorial-specific Data Models</a>
- <img src="https://json-ld.org/favicon.ico" align="center" height="25"/>
 <a href="https://smartdatamodels.org">Smart Data Models</a>

## Install

To download the full set of tutorials, simply clone this repository:

```console
git clone https://github.com/FIWARE/tutorials.NGSI-v2.git
cd tutorials.NGSI-v2/
git submodule update --init --recursive
```

[![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://github.com/codespaces/new?template_repository=FIWARE/tutorials.NGSI-v2)

### Docker and Docker Compose <img src="https://www.docker.com/favicon.ico" align="left" height="30" width="30">

The NGSI-v2 tutorials are designed to run under any Unix environment, the tested configuration and
[GitPod](https://github.com/gitpod-io/gitpod) environment is currently based on Ubuntu 22.04.2 LTS. However, there may
be some minor issues when running the tutorials directly on Windows machines or Apple M1 Silicon `amd64` systems, and
the following [Virtual Box set-up](docs/virtual-box.md) or [WSL set-up](docs/wsl.md) can be used when facing issues.

Each tutorial runs all components using [Docker](https://www.docker.com). **Docker** is a container technology which
allows to different components isolated into their respective environments.

-   To install Docker on Windows follow the instructions [here](https://docs.docker.com/docker-for-windows/)
-   To install Docker on Mac follow the instructions [here](https://docs.docker.com/docker-for-mac/)
-   To install Docker on Linux follow the instructions [here](https://docs.docker.com/install/)

**Docker Compose** is a tool for defining and running multi-container Docker applications. A series of `*.yaml` files
are used configure the required services for the application. This means all container services can be brought up in a
single command. Docker Compose is installed by default as part of Docker for Windows and Docker for Mac, however Linux
users will need to follow the instructions found [here](https://docs.docker.com/compose/install/)

You can check your current **Docker** and **Docker Compose** versions using the following commands:

```console
docker-compose -v
docker version
```

Please ensure that you are using Docker version 24.0.x or higher and Docker Compose 2.24.x or higher and upgrade if
necessary.

### Postman <img src="./docs/img/postman.png" align="left" height="25" width="25">

The tutorials which use HTTP requests supply a collection for use with the Postman utility. Postman is a testing
framework for REST APIs. The tool can be downloaded from [www.postman.com](https://www.postman.com/downloads/). All the
FIWARE Postman collections can be downloaded directly from the
[Postman API network](https://explore.postman.com/team/3mM5EY6ChBYp9D)

### GitPod <img src="https://gitpod.io/favicon.ico" align="left" height="30" width="30">

[Gitpod](https://github.com/gitpod-io/gitpod) is an open-source Kubernetes application for ready-to-code cloud
development environments that spins up an automated dev environment for each task, in the cloud. It enables you to run
the tutorials in a cloud development environment directly from your browser or your Desktop IDE.

### Apache Maven <img src="https://maven.apache.org/favicon.ico" align="left" height="30" width="30" style="border-right-style:solid; border-right-width:10px; border-color:transparent; background: transparent">

[Apache Maven](https://maven.apache.org/download.cgi) is a software project management and comprehension tool. Based on
the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a
central piece of information. Maven can be used to define and download our dependencies and to build and package Java or
Scala code into a JAR file.

### Windows Subsystem for Linux

We will start up our services using a simple bash script. Windows users should download the
[Windows Subsystem for Linux](https://learn.microsoft.com/en-us/windows/wsl/install) to provide a command-line
functionality similar to a Linux distribution on Windows.

## Tutorials List [<img src="https://img.shields.io/badge/NGSI-v2-5dc0cf.svg" width="90" align="left" />]("https://fiware-ges.github.io/orion/api/v2/stable/)

### Core Context Management: NGSI-v2 Fundamentals

&nbsp; 101. [Getting Started](https://github.com/FIWARE/tutorials.Getting-Started/tree/NGSI-v2) &nbsp; 102.
[Entity Relationships](https://github.com/FIWARE/tutorials.Entity-Relationships/tree/NGSI-v2) &nbsp; 103.
[CRUD Operations](https://github.com/FIWARE/tutorials.CRUD-Operations/tree/NGSI-v2) &nbsp; 104.
[Context Providers](https://github.com/FIWARE/tutorials.Context-Providers/tree/NGSI-v2) &nbsp; 105.
[Altering the Context Programmatically](https://github.com/FIWARE/tutorials.Accessing-Context/tree/NGSI-v2) 
&nbsp; 106. [Subscribing to Changes in Context](https://github.com/FIWARE/tutorials.Subscriptions/tree/NGSI-v2)

### Internet of Things, Robots and third-party systems

&nbsp; 201. [Introduction to IoT Sensors](https://github.com/FIWARE/tutorials.IoT-Sensors/tree/NGSI-v2) &nbsp; 202.
[Provisioning an IoT Agent](https://github.com/FIWARE/tutorials.IoT-Agent/tree/NGSI-v2) &nbsp; 203.
[IoT over an MQTT Transport](https://github.com/FIWARE/tutorials.IoT-over-MQTT/tree/NGSI-v2) &nbsp; 204.
[Using an alternative IoT Agent](https://github.com/FIWARE/tutorials.IoT-Agent-JSON/tree/NGSI-v2) &nbsp; 205.
[Creating a Custom IoT Agent](https://github.com/FIWARE/tutorials.Custom-IoT-Agent/tree/NGSI-v2) &nbsp; 206.
[IoT over an IOTA Tangle Transport](https://github.com/FIWARE/tutorials.IoT-over-IOTA/tree/NGSI-v2)

### Core Context Management: Manipulating Context Data and Persisting Historic Data

&nbsp; 301. [Persisting Context Data using Apache Flume](https://github.com/FIWARE/tutorials.Historic-Context-Flume) -
MongoDB, MySQL, PostgreSQL &nbsp; 302.
[Persisting Context Data using Apache NIFI](https://github.com/FIWARE/tutorials.Historic-Context-NIFI) - MongoDB, MySQL,
PostgreSQL &nbsp; 303.
[Querying Time Series Data (MongoDB)](https://github.com/FIWARE/tutorials.Short-Term-History/tree/NGSI-v2) 
&nbsp; 304.
[Querying Time Series Data (CrateDB)](https://github.com/FIWARE/tutorials.Time-Series-Data/tree/NGSI-v2) 
&nbsp; 305. [Big Data Analysis (Flink)](https://github.com/FIWARE/tutorials.Big-Data-Flink/tree/NGSI-v2) 
&nbsp; 306. [Big Data Analysis (Spark)](https://github.com/FIWARE/tutorials.Big-Data-Spark/tree/NGSI-v2)

### Security: Identity Management

&nbsp; 401.
[Managing Users and Organizations](https://github.com/FIWARE/tutorials.Identity-Management/tree/NGSI-v2) 
&nbsp; 402. [Roles and Permissions](https://github.com/FIWARE/tutorials.Roles-Permissions/tree/NGSI-v2) &nbsp; 403.
[Securing Application Access](https://github.com/FIWARE/tutorials.Securing-Access/tree/NGSI-v2) &nbsp; 404.
[Securing Microservices with a PEP Proxy](https://github.com/FIWARE/tutorials.PEP-Proxy/tree/NGSI-v2) &nbsp; 405.
[XACML Rules-based Permissions](https://github.com/FIWARE/tutorials.XACML-Access-Rules/tree/NGSI-v2) &nbsp; 406.
[Administrating XACML via a PAP](https://github.com/FIWARE/tutorials.Administrating-XACML/tree/NGSI-v2) &nbsp; 407.
[Authenticating Identities (Open-ID Connect)](https://github.com/FIWARE/tutorials.Securing-Access-OpenID-Connect/tree/NGSI-v2)

### Processing, Analysis and Visualization

&nbsp; 501. [Creating Application Mashups](https://github.com/FIWARE/tutorials.Application-Mashup/tree/NGSI-v2) 
&nbsp; 503. [Introduction to Media Streams](https://github.com/FIWARE/tutorials.Media-Streams/tree/NGSI-v2) 
&nbsp; 507. [Cloud-Edge Computing](https://github.com/FIWARE/tutorials.Edge-Computing/tree/NGSI-v2)

### NGSI-LD for NGSI-v2 Developers

&nbsp; 601. [Introduction to Linked Data](https://github.com/FIWARE/tutorials.Linked-Data/tree/NGSI-v2) &nbsp; 602.
[Linked Data Relationships and Data Models](https://github.com/FIWARE/tutorials.Relationships-Linked-Data/tree/NGSI-v2) 
&nbsp; 603.
[Traversing Linked Data Programmatically](https://github.com/FIWARE/tutorials.Accessing-Linked-Data/tree/NGSI-v2) 
&nbsp; 604.
[Linked Data Subscriptions and Registrations](https://github.com/FIWARE/tutorials.LD-Subscriptions-Registrations/tree/NGSI-v2)

## Usage

Most tutorials supply a `services` script to start the containers:

```console
cd <tutorial-name>
./services start
```

### Following the tutorial exercises via Postman

Each tutorial submodule contains one or more `docker-compose.yml` files, along with a Postman collection containing the
necessary HTTP requests: import the collection into Postman and follow the instructions.

### Following the tutorial exercises from the command-line

Each submodule contains full instructions in README which details the appropriate bash commands (cUrl and Docker
Compose) to run.

Full instructions can be found within the [documentation](https://fiware-tutorials.rtfd.io)

---

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