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directory.td.json
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{
"@context": [
"http://www.w3.org/ns/td",
"https://w3c.github.io/wot-discovery/context/discovery-context.jsonld"
],
"@type": "DirectoryDescription",
"title": "Thing Description Directory (TDD)",
"version": {
"instance": "1.0.0-alpha"
},
"securityDefinitions": {
"oauth2_code": {
"scheme": "oauth2",
"flow": "code",
"authorization": "https://auth.example.com/authorization",
"token": "https://auth.example.com/token",
"scopes": [
"write",
"read",
"search"
]
},
"oauth2_client": {
"scheme": "oauth2",
"flow": "client",
"token": "https://auth.example.com/token",
"scopes": [
"write",
"read",
"search"
]
},
"oauth2_device": {
"scheme": "oauth2",
"flow": "device",
"authorization": "https://auth.example.com/device_authorization",
"token": "https://auth.example.com/token",
"scopes": [
"write",
"read",
"search"
]
},
"combo_sc": {
"scheme": "combo",
"oneOf": [
"oauth2_code",
"oauth2_client",
"oauth2_device"
]
}
},
"security": "combo_sc",
"base": "https://tdd.example.com",
"actions": {
"createTD": {
"description": "Create a Thing Description",
"uriVariables": {
"id": {
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"forms": [
{
"href": "/td/{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
}
],
"scopes": "write"
},
{
"href": "/td",
"htv:methodName": "POST",
"contentType": "application/td+json",
"response": {
"description": "Success response",
"htv:headers": [
{
"description": "System-generated UUID (version 4) URN",
"htv:fieldName": "Location",
"htv:fieldValue": ""
}
],
"htv:statusCodeValue": 201
},
"additionalResponses": [
{
"description": "Invalid serialization or TD",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
],
"scopes": "write"
}
]
},
"updateTD": {
"description": "Update a Thing Description",
"uriVariables": {
"id": {
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"forms": [
{
"href": "/td/{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
}
],
"scopes": "write"
}
]
},
"updatePartialTD": {
"description": "Update parts of a Thing Description",
"uriVariables": {
"id": {
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"forms": [
{
"href": "/td/{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
}
],
"scopes": "write"
}
]
},
"deleteTD": {
"description": "Delete a Thing Description",
"uriVariables": {
"id": {
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
}
},
"forms": [
{
"href": "/td/{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
}
],
"scopes": "write"
}
]
}
},
"properties": {
"things": {
"@type": "ThingListProperty",
"description": "Collection of Thing Descriptions in the directory",
"uriVariables": {
"id": {
"@type": "ThingID",
"title": "Thing Description ID",
"type": "string",
"format": "iri-reference"
},
"jsonpath": {
"@type": "JSONPathExpression",
"title": "A valid JSONPath expression",
"type": "string"
},
"xpath": {
"@type": "XPathExpression",
"title": "A valid XPath expression",
"type": "string"
},
"offset": {
"@type": "PageOffset",
"title": "Number of TDs to skip before the page",
"type": "number",
"default": 0
},
"limit": {
"@type": "PageLimit",
"title": "Number of TDs in a page",
"type": "number"
},
"sort_by": {
"@type": "SortAttribute",
"title": "Comparator TD attribute for collection sorting",
"type": "string",
"default": "id"
},
"sort_order": {
"@type": "SortOrder",
"title": "Sorting order",
"type": "string",
"enum": ["asc", "desc"],
"default": "asc"
}
},
"forms": [
{
"href": "/things",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"htv:statusCodeValue": 200,
"contentType": "application/td+json"
},
"scopes": "readAll"
},
{
"href": "/things{?offset,limit,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
}
],
"scopes": "readAll"
},
{
"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
}
],
"scopes": "read"
},
{
"href": "/things?jsonpath={jsonpath}",
"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
}
],
"scopes": "search"
},
{
"href": "/things?xpath={xpath}",
"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
}
],
"scopes": "search"
}
]
},
"sparql": {
"@type": "SPARQLProperty",
"description": "Endpoint for querying the directory with SPARQL",
"uriVariables": {
"query": {
"@type": "SPARQLQuery",
"title": "A valid SPARQL 1.1. query",
"type": "string"
}
},
"forms": [
{
"href": "/sparql?query={query}",
"htv:methodName": "GET",
"response": {
"description": "Success response",
"htv:statusCodeValue": 200
},
"additionalResponses": [
{
"description": "SPARQL query not provided or contains syntax errors",
"contentType": "application/problem+json",
"htv:statusCodeValue": 400
}
],
"scopes": "search"
},
{
"href": "/sparql",
"htv:methodName": "POST",
"contentType:": "application/x-www-form-urlencoded",
"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
}
],
"scopes": "search"
},
{
"href": "/sparql",
"htv:methodName": "POST",
"contentType:": "application/sparql-query",
"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
}
],
"scopes": "search"
}
]
}
},
"events": {
"registration": {
"description": "TD registration events",
"uriVariables": {
"type": {
"title": "Event type(s)",
"description": "Multiple types passed as type={type} pairs for SSE",
"type": "string",
"enum": [
"create",
"update",
"delete"
]
},
"full": {
"title": "Include TD changes inside event data",
"type": "boolean"
}
},
"forms": [
{
"op": "subscribeevent",
"href": "/events{?type,full}",
"subprotocol": "sse",
"contentType": "text/event-stream",
"htv:headers": [
{
"description": "ID of the last event provided by reconnecting clients",
"htv:fieldName": "Last-Event-ID"
}
],
"data": {
"description": "Partial or complete TD",
"type": "object"
},
"scopes": "notifications"
}
]
}
}
}