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openapi.yaml
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openapi.yaml
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openapi: "3.0.0"
info:
description: ""
version: "2.1.0"
title: "Cayley API"
license:
name: "Apache 2.0"
url: "http://www.apache.org/licenses/LICENSE-2.0.html"
servers:
- url: "http://{host}:{port}"
variables:
"host":
default: "localhost"
"port":
default: "64210"
tags:
- name: "data"
description: "Reading and writing data"
- name: "queries"
description: "Querying the graph"
paths:
/api/v2/formats:
get:
tags:
- "data"
summary: "Returns a list of supported data formats"
description: ""
operationId: "listFormats"
responses:
200:
description: "success"
content:
"application/json":
schema:
type: "object"
properties:
id:
description: "unique name of the format"
type: "string"
read:
description: "format is supported for loading quads"
type: "boolean"
write:
description: "format is supported for exporting quads"
type: "boolean"
nodes:
description: "format can be used to describe nodes"
type: "boolean"
ext:
description: "typical file extensions for this format"
type: "array"
items:
type: "string"
mime:
description: "typical content types for this format"
type: "array"
items:
type: "string"
binary:
description: "format uses binary encoding"
type: "boolean"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/api/v2/read:
get:
tags:
- "data"
summary: "Reads all quads from the database"
description: ""
operationId: "readQuads"
parameters:
- name: "format"
in: "query"
description: "Data encoder to use for response. Overrides Accept header."
required: false
schema:
type: "string"
enum:
- "nquads"
- "jsonld"
- "json"
- "json-stream"
- "pquads"
- "graphviz"
- "gml"
- "graphml"
default: "nquads"
- name: "sub"
in: "query"
description: "Subjects to filter quads by"
required: false
schema:
type: "string"
- name: "pred"
in: "query"
description: "Predicates to filter quads by"
required: false
schema:
type: "string"
- name: "obj"
in: "query"
description: "Objects to filter quads by"
required: false
schema:
type: "string"
- name: "label"
in: "query"
description: "Labels to filter quads by"
required: false
schema:
type: "string"
- name: "iri"
in: "query"
description: "IRI format to use"
required: false
schema:
type: "string"
enum: ["short", "full"]
responses:
200:
description: "read successful"
content:
"application/n-quads":
schema:
$ref: "#/components/schemas/NQuads"
"application/ld+json":
schema:
$ref: "#/components/schemas/JSONLD"
"application/json":
schema:
$ref: "#/components/schemas/JsonQuads"
"application/x-json-stream":
schema:
$ref: "#/components/schemas/JsonQuadsStream"
"application/x-protobuf":
schema:
$ref: "#/components/schemas/PQuads"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/api/v2/write:
post:
tags:
- "data"
summary: "Writes quads to the database"
description: ""
operationId: "writeQuads"
requestBody:
description: "File in one of formats specified in Content-Type."
required: true
content:
"application/n-quads":
schema:
$ref: "#/components/schemas/NQuads"
"application/ld+json":
schema:
$ref: "#/components/schemas/JSONLD"
"application/json":
schema:
$ref: "#/components/schemas/JsonQuads"
"application/x-json-stream":
schema:
$ref: "#/components/schemas/JsonQuadsStream"
"application/x-protobuf":
schema:
$ref: "#/components/schemas/PQuads"
parameters:
- name: "format"
in: "query"
description: "Data decoder to use for request. Overrides Content-Type."
required: false
schema:
type: "string"
responses:
200:
description: "write successful"
content:
application/json:
schema:
type: "object"
properties:
result:
type: "string"
description: "legacy success message"
count:
type: "integer"
description: "number of quads received"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/api/v2/node/delete:
post:
tags:
- "data"
summary: "Removes a node add all associated quads"
description: ""
operationId: "deleteNode"
requestBody:
description: "File in one of formats specified in Content-Type."
required: true
content:
"application/n-quads":
schema:
$ref: "#/components/schemas/NQuadsNode"
"application/json":
schema:
$ref: "#/components/schemas/JsonNode"
"application/x-protobuf":
schema:
$ref: "#/components/schemas/PNode"
parameters:
- name: "format"
in: "query"
description: "Data decoder to use for request. Overrides Content-Type."
required: false
schema:
type: "string"
responses:
200:
description: "delete successful"
content:
application/json:
schema:
type: "object"
properties:
result:
type: "string"
description: "legacy success message"
count:
type: "integer"
description: "number of nodes deleted"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/api/v2/delete:
post:
tags:
- "data"
summary: "Delete quads from the database"
description: ""
operationId: "deleteQuads"
requestBody:
description: "File in one of formats specified in Content-Type."
required: true
content:
"application/n-quads":
schema:
$ref: "#/components/schemas/NQuads"
"application/ld+json":
schema:
$ref: "#/components/schemas/JSONLD"
"application/json":
schema:
$ref: "#/components/schemas/JsonQuads"
"application/x-json-stream":
schema:
$ref: "#/components/schemas/JsonQuadsStream"
"application/x-protobuf":
schema:
$ref: "#/components/schemas/PQuads"
parameters:
- name: "format"
in: "query"
description: "Data decoder to use for request. Overrides Content-Type."
required: false
schema:
type: "string"
responses:
200:
description: "write successful"
content:
application/json:
schema:
type: "object"
properties:
result:
type: "string"
description: "legacy success message"
count:
type: "integer"
description: "number of quads received"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/api/v2/query:
get:
tags:
- "queries"
summary: "Query the graph"
description: ""
operationId: "query-get"
parameters:
- name: "lang"
in: "query"
description: "Query language to use"
required: true
schema:
type: "string"
enum:
- "gizmo"
- "graphql"
- "mql"
- "sexp"
- name: "qu"
in: "query"
description: "Query text"
required: true
schema:
type: "string"
responses:
200:
description: "query succesful"
content:
"application/json":
schema:
$ref: "#/components/schemas/QueryResult"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
post:
tags:
- "queries"
summary: "Query the graph"
description: ""
operationId: "query"
parameters:
- name: "lang"
in: "query"
description: "Query language to use"
required: true
schema:
type: "string"
enum:
- "gizmo"
- "graphql"
- "mql"
- "sexp"
requestBody:
description: "Query text"
required: true
content:
"*/*":
schema:
type: "string"
examples:
gizmo:
summary: "Gizmo: first 10 nodes"
value: "g.V().getLimit(10)"
graphql:
summary: "GraphQL: first 10 nodes"
value: "{\n nodes(first: 10){\n id\n }\n}"
responses:
200:
description: "query succesful"
content:
"application/json":
schema:
$ref: "#/components/schemas/QueryResult"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
/gephi/gs:
get:
tags:
- "queries"
summary: "Gephi GraphStream endpoint"
description: ""
operationId: "gephiGraphStream"
parameters:
- name: "mode"
in: "query"
description: "Streamer mode"
required: false
schema:
type: "string"
enum:
- "raw"
- "nodes"
default: "raw"
- name: "limit"
in: "query"
description: "Limit the number of nodes or quads"
required: false
schema:
type: "integer"
- name: "sub"
in: "query"
description: "Subjects to filter quads by"
required: false
schema:
type: "string"
- name: "pred"
in: "query"
description: "Predicates to filter quads by"
required: false
schema:
type: "string"
- name: "obj"
in: "query"
description: "Objects to filter quads by"
required: false
schema:
type: "string"
- name: "label"
in: "query"
description: "Labels to filter quads by"
required: false
schema:
type: "string"
responses:
200:
description: "success"
content:
"application/stream+json":
schema:
type: "string"
format: "binary"
description: "stream of JSON objects"
default:
description: "Unexpected error"
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
components:
schemas:
QueryResult:
type: object
properties:
result:
type: array
nullable: true
items:
type: object
NQuads:
type: "string"
format: "binary"
example: |
<alice> <follows> <bob> .
<bob> <follows> <fred> .
<bob> <status> "cool_person" .
<charlie> <follows> <bob> .
<charlie> <follows> <dani> .
<dani> <follows> <bob> .
<dani> <follows> <greg> .
<dani> <status> "cool_person" .
<emily> <follows> <fred> .
<fred> <follows> <greg> .
<greg> <status> "cool_person" .
<predicates> <are> <follows> .
<predicates> <are> <status> .
<emily> <status> "smart_person" <smart_graph> .
<greg> <status> "smart_person" <smart_graph> .
NQuadsNode:
type: "string"
format: "binary"
example: "<alice>"
JSONLD:
type: "string"
format: "binary"
example:
{
"@context": "http://schema.org/",
"@type": "Person",
"name": "Jane Doe",
"jobTitle": "Professor",
"telephone": "(425) 123-4567",
"url": "http://www.janedoe.com",
}
externalDocs:
url: "https://json-ld.org"
JsonQuad:
type: "object"
properties:
subject:
type: "string"
predicate:
type: "string"
object:
type: "string"
label:
type: "string"
JsonQuads:
type: "array"
items:
type: "object"
properties:
subject:
type: "string"
predicate:
type: "string"
object:
type: "string"
label:
type: "string"
JsonNode:
type: "string"
JsonQuadsStream:
type: "string"
format: "binary"
description: "stream of JsonQuad objects"
PQuads:
type: "string"
format: "binary"
description: "Cayley-specific binary encoding of quads based on protobuf"
PNode:
type: "string"
format: "binary"
description: "Cayley-specific binary encoding of node value based on protobuf"
Error:
type: "object"
properties:
error:
type: "string"
description: "error message"