Adding Edges in Batches

Function

This API is used to add edges in batches.

URI

POST /ges/v1.0/{project_id}/graphs/{graph_name}/edges/action?action_id=batch-add

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
graph_name	Yes	String	Graph name

Request Parameters

Parameter	Mandatory	Type	Description
edges	Yes	Object	Edge array to be added
parallelEdge	No	parallelEdge Object	Repetitive edge processing
createNotExists	No	Boolean	Whether to add source or target vertices that do not exist in the edges parameter before adding edges. The default value is false, which does not affect the original functions and semantics. If this parameter is set to true, source or target vertices that do not exist in the edges parameter are added prior to the edges.

Parameter

Mandatory

Type

Description

edges

Yes

Object

Edge array to be added

parallelEdge

parallelEdge Object

Repetitive edge processing

createNotExists

Boolean

Whether to add source or target vertices that do not exist in the edges parameter before adding edges. The default value is false, which does not affect the original functions and semantics.

If this parameter is set to true, source or target vertices that do not exist in the edges parameter are added prior to the edges.

**Table 2** edges parameter description
Parameter	Mandatory	Type	Description
source	Yes	String	Source vertex of an edge
target	Yes	String	Target vertex of an edge
label	Yes	String	Edge label
properties	No	Object	Value of each property

**Table 3** parallelEdge parameter description
Parameter	Mandatory	Type	Description
action	No	String	Processing mode of repetitive edges. The value can be allow, ignore, or override. The default value is allow. allow indicates that repetitive edges are allowed. ignore indicates that subsequent repetitive edges are ignored. override indicates that the previous repetitive edges are overwritten.
ignoreLabel	No	Boolean	Whether to ignore labels on repetitive edges. The value is true or false, and the default value is true. true: Indicates that the repetitive edge definition does not contain the label. That is, the <source vertex, target vertex> indicates an edge, excluding the label information. false: indicates that the repetitive edge definition contains the label. That is, <Source vertex, Target vertex, Label> indicates an edge.
targetProperties	No	targetProperties Array	Properties used to determine duplicate edges. If this parameter is specified, ignoreLabel is set to false to define repetitive edges that contain properties in the list specified by this parameter. (This parameter is mandatory only when action is set to override.) NOTE: The current version supports only overwriting by property and does not support ignoring by property. In addition, only one property takes effect for each label. Properties of the non-single type are considered unequal.

**Table 4** targetProperties parameter description
Parameter	Mandatory	Type	Description
label	Yes	String	Labels whose repetitive edges need to be determined by property
properties	Yes	Array	List of properties whose repetitive edges need to be determined by property. Currently, only one property is supported. If multiple properties are entered, the first property is used.

Response Parameters

**Table 5** Response body parameters
Parameter	Type	Description
errorMessage	String	System prompt. If execution succeeds, this parameter may be left blank. If execution fails, this parameter is used to display the error message.
errorCode	String	System prompt code. If execution succeeds, this parameter may be left blank. If execution fails, this parameter is used to display the error code.
result	String	Request result. If the request is successful, the value is success. If the request fails, the value is failed.

Example Request

Add edges in batches. The source vertex is 46, the target vertices are 39 and 38, and the edge label is rate.

POST http://{SERVER_URL}/ges/v1.0/{project_id}/graphs/{graph_name}/edges/action?action_id=batch-add
{
    "parallelEdge": {
        "action": "override",
        "ignoreLabel": false,
        "targetProperties": [
            {
                "label": "rate",
                "properties": [
                    "Datetime"
                ]
            },
            {
                "label": "superclassOf",
                "properties": [
                    "popularity"
                ]
            }
        ]
    },
    "createNotExists": true,
    "edges": [
        {
            "source": "46",
            "target": "39",
            "label": "rate",
            "properties": {
                "Rating": [
                    5
                ],
                "Datetime": [
                    "2018-01-01 20:30:05"
                ]
            }
        },
        {
            "source": "46",
            "target": "39",
            "label": "rate",
            "properties": {
                "Rating": [
                    4
                ],
                "Datetime": [
                    "2018-01-01 20:30:05"
                ]
            }
        }
    ]
}

SERVER_URL: Address for accessing a graph. For details about its value, see Using Service Plane APIs.
In the example, if vertices 666 and 777 are not in the original graph, create vertices 666 and 777, retain the default value of each label, and add an edge.

Example Response

Status code: 200

Example response for a successful request

Http Status Code: 200
{
 "result":"success",
 "data": {
     "edges": [
         {
             "index": "7",
             "source": "46",
             "target": "39"
         },
         {
             "index": "0",
             "source": "46",
             "target": "38"
         }
     ]
 }
}

Status code: 400

Example response for a failed request

Http Status Code: 400
{
 "errorMessage":"edge source vertex [Lily] does not exist",
 "errorCode":"GES.8000"
}

Status Codes

Return Value	Description
400 Bad Request	Request error.
401 Unauthorized	Authorization failed.
403 Forbidden	No operation permissions.
404 Not Found	No resources found.
500 Internal Server Error	Internal server error.
503 Service Unavailable	Service unavailable.