A simple query returning all nodes connected to node 1, returning the node and the name property, if it exists, otherwise null:

START x  = node(3)
MATCH x -[r]-> n
RETURN type(r), n.name?, n.age?

Figure 18.70. Final Graph

Example request

{"query": "start x  = node(3) match x -[r]-> n return type(r), n.name?, n.age?","params": {}},

Example response

{
  "data" : [ [ "know", "him", 25 ], [ "know", "you", null ] ],
  "columns" : [ "TYPE(r)", "n.name", "n.age" ]
}

Paths can be returned together with other return types by just specifying returns.

START x  = node(%I%)
MATCH path = (x--friend)
RETURN path, friend.name

Figure 18.71. Final Graph

Example request

{"query": "start x  = node(7) match path = (x--friend) return path, friend.name","params": {}},

Example response

{
  "data" : [ [ {
    "start" : "http://localhost:7474/db/data/node/7",
    "nodes" : [ "http://localhost:7474/db/data/node/7", "http://localhost:7474/db/data/node/6" ],
    "length" : 1,
    "relationships" : [ "http://localhost:7474/db/data/relationship/3" ],
    "end" : "http://localhost:7474/db/data/node/6"
  }, "you" ] ],
  "columns" : [ "path", "friend.name" ]
}

Cypher supports queries with parameters which are submitted as a JSON map.

START x  = node:node_auto_index(name={STARTName})
MATCH path = (x-[r]-friend)
WHERE friend.name = {name}
RETURN TYPE(r)

Figure 18.72. Final Graph

Example request

{"query": "start x  = node:node_auto_index(name={startName}) match path = (x-[r]-friend) where friend.name = {name} return TYPE(r)","params": {"startName":"I","name":"you"}},

Example response

{
  "data" : [ [ "know" ] ],
  "columns" : [ "TYPE(r)" ]
}

Errors on the server will be reported as a JSON-formatted stacktrace and message.

START x = node(%I%)
RETURN x.dummy

Figure 18.73. Final Graph

Example request

{"query": "start x = node(5) return x.dummy","params": {}},

Example response

{
  "message" : "The property 'dummy' does not exist on Node[5]",
  "exception" : "org.neo4j.server.rest.repr.BadInputException: The property 'dummy' does not exist on Node[5]",
  "stacktrace" : [ "org.neo4j.server.plugin.cypher.CypherPlugin.executeScript(CypherPlugin.java:81)", "sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)", "sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)", "sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)", "java.lang.reflect.Method.invoke(Method.java:597)", "org.neo4j.server.plugins.PluginMethod.invoke(PluginMethod.java:57)", "org.neo4j.server.plugins.PluginManager.invoke(PluginManager.java:168)", "org.neo4j.server.rest.web.ExtensionService.invokeGraphDatabaseExtension(ExtensionService.java:300)", "org.neo4j.server.rest.web.ExtensionService.invokeGraphDatabaseExtension(ExtensionService.java:122)", "sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)", "sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)", "sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)", "java.lang.reflect.Method.invoke(Method.java:597)", "com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:187)", "com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:71)", "com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:280)", "com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)", "com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)", "com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)", "com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)", "com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1341)", "com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1273)", "com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1223)", "com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1213)", "com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:414)", "com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)", "com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699)", "javax.servlet.http.HttpServlet.service(HttpServlet.java:820)", "org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)", "org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)", "org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)", "org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)", "org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)", "org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)", "org.mortbay.jetty.Server.handle(Server.java:326)", "org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)", "org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:943)", "org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)", "org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)", "org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)", "org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)", "org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)" ]
}