Arangodb

APIs for Arangodb : http://127.0.0.1:8016/docs#/arangodb

This API makes it possible to use collection and anonymous graph with the help of edge collection.

Supported types

int : an integer value.
float : a float value.
text : an array of character.
timestamp : a date supported by the dateparser library (https://pypi.org/project/dateparser/)
relationship : it is a special attribute to connect a Document to other Documents
[int] : a list of integer value
[float] : a list of float value
[text] : a list of string
json : a json object

Supported index options

Indexes in Arangodb are defined at the collection level (global options).

Supported global options

indexes : a list of index defined with a “name”, “index_type” and “fields”

index_type : it supports the following index “persistent”, “fulltext”, “hash”

name : it would be the index name in Arangodb

fields : the list of fields for this index

edge_collection : a boolean that defined if this collection is for edge documents.

Examples

curl -X 'POST' \
'http://127.0.0.1:8016/collection/arangodb' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
        "collection": "collection1",
        "namespace": "namespace1",
        "global_options": {
            "indexes":[
                {
                    "index_type": "fulltext",
                    "name": "test_index",
                    "fields": ["test"]
                }
            ],
            "edge_collection": false
        },
        "fields":
        {
            "test": {
                "type": "text"
            },
            "test2": {
                "type": "text"
            }
        }
    }'

How to create an annonymous graph ?

First create a collection :

curl -X 'POST' \
'http://127.0.0.1:8016/collection/arangodb' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
        "collection": "collection1",
        "namespace": "namespace1",
        "global_options": {
            "indexes":[],
            "edge_collection": false
        },
        "fields":
        {
            "test": {
                "type": "text"
            }
        }
    }'

Then create the edge collection. We need to set edge_collection to true and add two fields “from” and “to” of type “relationship”:

curl -X 'POST' \
'http://127.0.0.1:8016/collection/arangodb' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
        "collection": "collection2",
        "namespace": "namespace1",
        "global_options": {
            "indexes":[],
            "edge_collection": true
        },
        "fields":
        {
            "from": {
                "type": "relationship"
            },
            "to": {
                "type": "relationship"
            },
            "label": {
                "type": "text"
            }
        }
    }'

After these steps, you can add nodes and create relationships :

import requests
import json

response1 = requests.post("http://127.0.0.1:8016/collection/arangodb/nodes", json={
    "collection": "collection1",
    "namespace": "test",
    "nodes":[
        {
            "test": "test"
        },
        {
            "test": "test2"
        }
    ]
    })
nodes_id = json.loads(response1.text)["nodes_id"]
response2 = requests.put("http://127.0.0.1:8016/collection/arangodb/relationship", json={
"collection": "collection2",
"namespace": "test",
"edge": {
        "from": nodes_id[0]["_id"],
        "to": nodes_id[1]["_id"],
        "label": "label"
    }
})