onlyshk/gist:2692802

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    neo4j http api

Node api:
Create empty node:
httpc:request(post, {"http://127.0.0.1:7474/db/data/node", ["application/json"], "application/json", []}, [], []). 

Create node with some properties
httpc:request(post, {"http://127.0.0.1:7474/db/data/node", ["application/json"], "application/json", "{\"name\":\"Sasha\"}"}, [], []).

Get node
httpc:request("http://127.0.0.1:7474/db/data/node/4"). 

Where 4 - nodeId


Set properties on node
httpc:request(put, {"http://127.0.0.1:7474/db/data/node/2/properties", ["application/json"], "application/json", "{\"name\":\"Sasha5\"}"}, [], []).
Where:

2 - node id
*"{\"name\":\"Sasha5\"}" - set new property value


Delete properties in node
httpc:request(delete, {"http://127.0.0.1:7474/db/data/node/2/properties",[]}, [], []).

Get property on node
httpc:request(get, {"http://127.0.0.1:7474/db/data/node/3/properties/name",[]}, [], []).
Where:

3 - nodeId
name - properties key


Delete node
httpc:request(delete, {"http://127.0.0.1:7474/db/data/node/2",[]}, [], []).
Where:

2 - nodeId


Relationships

Create relationship
httpc:request(post, {"http://127.0.0.1:7474/db/data/node/5/relationships", ["application/json"], "application/json", "{\"to\": \"http://localhost:7474/db/data/node/4\", \"type\": \"follow\"}"}, [], []). 
Where:

5 - from relationship
type - type of relation
to - to relationship


Delete relationship
httpc:request(delete, {"http://127.0.0.1:7474/db/data/relationships/5", []}, [], []). 
Where:

5 - relation id

Batch

Create more node for 1 time
If we want to make more that 1 node (or other entities) for 1 http request we must use batch request:
Example request

POST http://localhost:7474/db/data/batch
Accept: application/json
Content-Type: application/json

[ {
  "method" : "PUT",
  "to" : "/node/77/properties",
  "body" : {
    "age" : 1
  },
  "id" : 0
}, {
  "method" : "GET",
  "to" : "/node/77",
  "id" : 1
}, {
  "method" : "POST",
  "to" : "/node",
  "body" : {
    "age" : 1
  },
  "id" : 2
}, {
  "method" : "POST",
  "to" : "/node",
  "body" : {
    "age" : 1
  },
  "id" : 3
} ]
Request in erlang
httpc:request(post, {"http://127.0.0.1:7474/db/data/batch/", ["application/json"], "application/json", "[{\"method\" : \"POST\",\"to\" : \"/node\", \"body\" : {\"name\" : \"User1\"},\"id\" : 0},{\"method\" : \"POST\",\"to\" : \"/node\", \"body\" : {\"name\" : \"User2\"},\"id\" : 1}]"}, [], []). 
Links

http://components.neo4j.org/neo4j-server/1.3.M02/rest.html#Create_node_with_properties
http://www.hacksparrow.com/neo4j-tutorial-rest-api.html