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@@ -25,7 +25,6 @@ The tutorial uses [cUrl](https://ec.haxx.se/) commands throughout, but is also a
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[português](https://github.com/FIWARE/tutorials.Getting-Started/blob/master/README.pt.md) <br/> 🇪🇸 Este tutorial también
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está disponible en [español](https://github.com/FIWARE/tutorials.Getting-Started/blob/master/README.es.md)
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## Contents
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<details>
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> "Begin at the beginning," the King said, very gravely, "and go on till you come to the end: then stop."
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>
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> — Lewis Carroll, Alice in Wonderland
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> — Lewis Carroll, Alice in Wonderland
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**NGSI-v2** is a JSON-based interoperability interface for use in individual Smart Systems. It is ideal for creating individual applications offering interoperable interfaces
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for web services or IoT devices. It is easier to understand than NGSI-LD and does not require a [JSON-LD `@context`](https://www.w3.org/TR/json-ld11/#the-context).
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**NGSI-v2** is a JSON-based interoperability interface for use in individual Smart Systems. It is ideal for creating
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individual applications offering interoperable interfaces for web services or IoT devices. It is easier to understand
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than NGSI-LD and does not require a [JSON-LD `@context`](https://www.w3.org/TR/json-ld11/#the-context).
> If you want to clean up and start again you can do so with the following commands
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>
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> ```
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```
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> [!NOTE]
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>
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> If you want to clean up and start again you can do so with the following command:
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>
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> ```
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}
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```
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> [!TIP]
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> **What if I get a `Failed to connect to localhost port 1026: Connection refused` Response?**
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> [!TIP] > **What if I get a `Failed to connect to localhost port 1026: Connection refused` Response?**
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>
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> If you get a `Connection refused` response, the Orion Content Broker cannot be found where expected for this
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> tutorial - you will need to substitute the URL and port in each cUrl command with the corrected IP address. All the
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defined `type` and a `value` attribute.
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> [!NOTE]
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> The `type` attribute should be used to describe the **Datatype** of the Entity and its Properties
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>
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> - For Native JSON Properties, the `type` can align with a well-known **Datatype** schema, such as [schema.org](https://schema.org/DataType) or
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> [XML Schema](https://www.w3.org/TR/2004/REC-xmlschema-2-20041028/) - typically values such as: `Time`, `Boolean`, `DateTime`, `Number`,
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> `Text`, `Date`, `Float`, `Integer` etc.
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> - For other JSON Objects, where possible use a datatype from an existing ontology - for example `PostalAddress` aligns with `https://schema.org/PostalAddress`.
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> - `"type": "Property"` can also be used if maintenance of a detailed datatype is not important.
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> - For GeoProperties, define the position using [GeoJSON](https://geojson.org/) and use the attribute type: `"type": "geo:json"`
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> - Use of [NGSI-LD](https://ngsi-ld-tutorials.readthedocs.io/) Property sub-classes such `LanguageProperty`, `VocabularyProperty`, `JsonProperty` and `ListProperty`
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> can be useful if it is enviaged that an NGSI-v2 system is expected to later connect with NGSI-LD systems for Federations and Data Spaces
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> - By convention `"type": "Relationship"` is used for [Relationships](https://github.com/FIWARE/tutorials.Entity-Relationships/tree/NGSI-v2)
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>
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> The `type` attribute should be used to describe the **Datatype** of the Entity and its Properties
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>
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> - For Native JSON Properties, the `type` can align with a well-known **Datatype** schema, such as
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> [schema.org](https://schema.org/DataType) or [XML Schema](https://www.w3.org/TR/2004/REC-xmlschema-2-20041028/) -
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> typically values such as: `Time`, `Boolean`, `DateTime`, `Number`, `Text`, `Date`, `Float`, `Integer` etc.
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> - For other JSON Objects, where possible use a datatype from an existing ontology - for example `PostalAddress`
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> aligns with `https://schema.org/PostalAddress`.
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> - `"type": "Property"` can also be used if maintenance of a detailed datatype is not important.
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> - For GeoProperties, define the position using [GeoJSON](https://geojson.org/) and use the attribute type:
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> `"type": "geo:json"`
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> - Use of [NGSI-LD](https://ngsi-ld-tutorials.readthedocs.io/) Property sub-classes such `LanguageProperty`,
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> `VocabularyProperty`, `JsonProperty` and `ListProperty` can be useful if it is enviaged that an NGSI-v2 system is
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> expected to later connect with NGSI-LD systems for Federations and Data Spaces
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> - By convention `"type": "Relationship"` is used for
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