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directory.tm.json
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directory.tm.json
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{
"@context": [
"http://www.w3.org/ns/td",
"https://w3c.github.io/wot-discovery/context/discovery-context.jsonld"
],
"@type": [
"tm:ThingModel",
"ThingDirectory"
],
"title": "Thing Description Directory (TDD) Thing Model",
"version": {
"model": "1.0.0-beta.3"
},
"base": "{{DIRECTORY_BASE_URL}}",
"tm:optional": [
"/actions/createThing",
"/actions/createAnonymousThing",
"/actions/retrieveThing",
"/actions/updateThing",
"/actions/partiallyUpdateThing",
"/actions/deleteThing",
"/actions/searchJSONPath",
"/actions/searchXPath",
"/actions/searchSPARQL",
"/events/thingCreated",
"/events/thingUpdated",
"/events/thingDeleted"
],
"properties": {
"things": {
"description": "Retrieve all Thing Descriptions",
"uriVariables": {
"offset": {
"title": "Number of TDs to skip before the page",
"type": "number",
"default": 0
},
"limit": {
"title": "Number of TDs in a page",
"type": "number"
},
"format": {
"title": "Payload format",
"type": "string",
"enum": [
"array",
"collection"
],
"default": "array"
},
"sort_by": {
"title": "Comparator TD attribute for collection sorting",
"type": "string",
"default": "id"
},
"sort_order": {
"title": "Sorting order",
"type": "string",
"enum": [
"asc",
"desc"
],
"default": "asc"
}
},
"forms": [
{
"href": "/things{?offset,limit,format,sort_by,sort_order}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"htv:statusCodeValue": 200,
"contentType": "application/ld+json",
"htv:headers": [
{
"htv:fieldName": "Link"
}
]
},
"additionalResponses": [
{
"description": "Invalid query arguments",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
}
},
"actions": {
"createThing": {
"description": "Create a Thing Description",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"input": {
"description": "The schema is implied by the content type",
"type": "object"
},
"forms": [
{
"href": "/things/{id}",
"htv:methodName": "PUT",
"contentType": "application/td+json",
"response": {
"description": "Success response",
"htv:statusCodeValue": 201
},
"additionalResponses": [
{
"description": "Invalid serialization or TD",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
},
"createAnonymousThing": {
"description": "Create an anonymous Thing Description",
"input": {
"description": "The schema is implied by the content type",
"type": "object"
},
"forms": [
{
"href": "/things",
"htv:methodName": "POST",
"contentType": "application/td+json",
"response": {
"description": "Success response including the system-generated URI",
"htv:headers": [
{
"description": "System-generated URI",
"htv:fieldName": "Location"
}
],
"htv:statusCodeValue": 201
},
"additionalResponses": [
{
"description": "Invalid serialization or TD",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
},
"retrieveThing": {
"description": "Retrieve a Thing Description",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"output": {
"description": "The schema is implied by the content type",
"type": "object"
},
"safe": true,
"idempotent": true,
"forms": [
{
"href": "/things/{id}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"htv:statusCodeValue": 200,
"contentType": "application/td+json"
},
"additionalResponses": [
{
"description": "TD with the given id not found",
"contentType": "application/problem+json",
"htv:statusCodeValue": 404
}
]
}
]
},
"updateThing": {
"description": "Update a Thing Description",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"input": {
"description": "The schema is implied by the content type",
"type": "object"
},
"forms": [
{
"href": "/things/{id}",
"htv:methodName": "PUT",
"contentType": "application/td+json",
"response": {
"description": "Success response",
"htv:statusCodeValue": 204
},
"additionalResponses": [
{
"description": "Invalid serialization or TD",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
},
"partiallyUpdateThing": {
"description": "Partially update a Thing Description",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"input": {
"description": "The schema is implied by the content type",
"type": "object"
},
"forms": [
{
"href": "/things/{id}",
"htv:methodName": "PATCH",
"contentType": "application/merge-patch+json",
"response": {
"description": "Success response",
"htv:statusCodeValue": 204
},
"additionalResponses": [
{
"description": "Invalid serialization or TD",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
},
{
"description": "TD with the given id not found",
"contentType": "application/problem+json",
"htv:statusCodeValue": 404
}
]
}
]
},
"deleteThing": {
"description": "Delete a Thing Description",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"forms": [
{
"href": "/things/{id}",
"htv:methodName": "DELETE",
"response": {
"description": "Success response",
"htv:statusCodeValue": 204
},
"additionalResponses": [
{
"description": "TD with the given id not found",
"contentType": "application/problem+json",
"htv:statusCodeValue": 404
}
]
}
]
},
"searchJSONPath": {
"description": "JSONPath syntactic search. This affordance is not normative and is provided for information only.",
"uriVariables": {
"query": {
"title": "A valid JSONPath expression",
"type": "string"
}
},
"output": {
"description": "The schema depends on the given query",
"type": "object"
},
"safe": true,
"idempotent": true,
"forms": [
{
"href": "/search/jsonpath?query={query}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"contentType": "application/json",
"htv:statusCodeValue": 200
},
"additionalResponses": [
{
"description": "JSONPath expression not provided or contains syntax errors",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
},
"searchXPath": {
"description": "XPath syntactic search. This affordance is not normative and is provided for information only.",
"uriVariables": {
"query": {
"title": "A valid XPath expression",
"type": "string"
}
},
"output": {
"description": "The schema depends on the given query",
"type": "object"
},
"safe": true,
"idempotent": true,
"forms": [
{
"href": "/search/xpath?query={query}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"contentType": "application/json",
"htv:statusCodeValue": 200
},
"additionalResponses": [
{
"description": "XPath expression not provided or contains syntax errors",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
},
"searchSPARQL": {
"description": "SPARQL semantic search",
"uriVariables": {
"query": {
"title": "A valid SPARQL 1.1. query",
"type": "string"
}
},
"output": {
"description": "The schema depends on the given query",
"type": "object"
},
"safe": true,
"idempotent": true,
"forms": [
{
"href": "/search/sparql?query={query}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"contentType": "application/json",
"htv:statusCodeValue": 200
},
"additionalResponses": [
{
"description": "SPARQL query not provided or contains syntax errors",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
},
{
"href": "/search/sparql",
"htv:methodName": "POST",
"response": {
"description": "Success response",
"contentType": "application/json",
"htv:statusCodeValue": 200
},
"additionalResponses": [
{
"description": "SPARQL query not provided or contains syntax errors",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
]
}
]
}
},
"events": {
"thingCreated": {
"description": "Registration of Thing Descriptions inside the directory",
"uriVariables": {
"diff": {
"description": "Receive the full created TD as event data",
"type": "boolean"
}
},
"data": {
"title": "Partial/Full TD",
"type": "object"
},
"forms": [
{
"op": "subscribeevent",
"href": "/events/thing_created{?diff}",
"subprotocol": "sse",
"htv:headers": [
{
"description": "ID of the last event for reconnection",
"htv:fieldName": "Last-Event-ID"
}
],
"response": {
"contentType": "text/event-stream"
}
}
]
},
"thingUpdated": {
"description": "Updates to Thing Descriptions within the directory",
"uriVariables": {
"diff": {
"description": "Include TD changes inside event data",
"type": "boolean"
}
},
"data": {
"title": "Partial TD",
"type": "object",
"contentMediaType": "application/merge-patch+json"
},
"forms": [
{
"op": "subscribeevent",
"href": "/events/thing_updated{?diff}",
"subprotocol": "sse",
"htv:headers": [
{
"description": "ID of the last event for reconnection",
"htv:fieldName": "Last-Event-ID"
}
],
"response": {
"contentType": "text/event-stream"
}
}
]
},
"thingDeleted": {
"description": "Deletion of Thing Descriptions from the directory",
"data": {
"title": "Partial TD",
"type": "object"
},
"forms": [
{
"op": "subscribeevent",
"href": "/events/thing_deleted",
"subprotocol": "sse",
"htv:headers": [
{
"description": "ID of the last event for reconnection",
"htv:fieldName": "Last-Event-ID"
}
],
"response": {
"contentType": "text/event-stream"
}
}
]
}
}
}