Route queries to read cluster members

In a cluster environment, all queries are routed to writer members by default. To ensure efficient load balancing, you should send queries that contain only read statements to the cluster readers. You can do so by adding the header Access-Mode: READ to the request (the default is WRITE).

Query routing is only supported for implicit transactions (i.e. requests to the tx/commit endpoint).

Example request

POST http://localhost:7474/db/neo4j/tx/commit
Accept: application/json;charset=UTF-8
Content-Type: application/json
Authorization: Basic bmVvNGo6dmVyeXNlY3JldA==
Access-Mode: READ

{
  "statements": [
    { "statement": "MATCH (n) RETURN n LIMIT 2" }
  ]
}

Example response

200: OK
Content-Type: application/json;charset=utf-8

{
  "results": [ {
    "columns": [ "n" ],
    "data": [
      {
        "row": [ {
          "name": "Phil",
          "age": 21
        } ],
        "meta": [ {
          "id": 12,
          "elementId": "4:b7c0e943-1e73-474b-8ddc-e8ff3ae74cdd:12",
          "type": "node",
          "deleted": false
        } ]
      },
      {
        "row": [ {
          "name": "Lucy",
          "age": 20
        } ],
        "meta": [ {
          "id": 13,
          "elementId": "4:b7c0e943-1e73-474b-8ddc-e8ff3ae74cdd:13",
          "type": "node",
          "deleted": false
        } ]
      }
    ]
  } ],
  "errors": [],
  "lastBookmarks": [
      "FB:kcwQt8DpQx5zR0uN3Oj/OudM3RmQ"
  ]
}