close #43. Changed graph creation and docs.

Author: DvirDukhan

Diff for: examples/ConnectionConfigurationExample.js

@@ -0,0 +1,51 @@
+/* Executed with:
+redis-server --loadmodule path_to_redisgraph.so --port 8080
+
+In Redis-CLI:
+CONFIG SET requirepass "1234"
+*/
+
+const RedisGraph = require("redisgraph.js").Graph;
+let graph = new RedisGraph("social", {port:8080, options:{password:1234}});
+
+try {
+	(async () => {
+		await graph.query("CREATE (:person{name:'roi',age:32})");
+		await graph.query("CREATE (:person{name:'amit',age:30})");
+		await graph.query(
+			"MATCH (a:person), (b:person) WHERE (a.name = 'roi' AND b.name='amit') CREATE (a)-[:knows]->(b)"
+		);
+
+		// Match query.
+		let res = await graph.query(
+			"MATCH (a:person)-[:knows]->(:person) RETURN a.name"
+		);
+		while (res.hasNext()) {
+			let record = res.next();
+			console.log(record.get("a.name"));
+		}
+		console.log(res.getStatistics().queryExecutionTime());
+
+		// Match with parameters.
+		let param = { age: 30 };
+		res = await graph.query("MATCH (a {age: $age}) return a.name", param);
+		while (res.hasNext()) {
+			let record = res.next();
+			console.log(record.get("a.name"));
+		}
+
+		// Named paths matching.
+		res = await graph.query(
+			"MATCH p = (a:person)-[:knows]->(:person) RETURN p"
+		);
+		while (res.hasNext()) {
+			let record = res.next();
+			// See path.js for more path API.
+			console.log(record.get("p").nodeCount);
+			graph.deleteGraph();
+			process.exit();
+		}
+	})();
+} catch (err) {
+	console.log(err);
+}

Diff for: examples/ConnectionFromNodeRedisExample.js

@@ -0,0 +1,58 @@
+/* Executed with:
+redis-server --loadmodule path_to_redisgraph.so --port 8080
+
+In Redis-CLI:
+CONFIG SET requirepass "1234"
+*/
+
+const RedisGraph = require("redisgraph.js").Graph;
+const redis = require("redis")
+
+let options = {
+    port:8080, 
+    password:1234
+};
+let rc = redis.createClient(options)
+let graph = new RedisGraph("social", {host:rc});
+
+try {
+	(async () => {
+		await graph.query("CREATE (:person{name:'roi',age:32})");
+		await graph.query("CREATE (:person{name:'amit',age:30})");
+		await graph.query(
+			"MATCH (a:person), (b:person) WHERE (a.name = 'roi' AND b.name='amit') CREATE (a)-[:knows]->(b)"
+		);
+
+		// Match query.
+		let res = await graph.query(
+			"MATCH (a:person)-[:knows]->(:person) RETURN a.name"
+		);
+		while (res.hasNext()) {
+			let record = res.next();
+			console.log(record.get("a.name"));
+		}
+		console.log(res.getStatistics().queryExecutionTime());
+
+		// Match with parameters.
+		let param = { age: 30 };
+		res = await graph.query("MATCH (a {age: $age}) return a.name", param);
+		while (res.hasNext()) {
+			let record = res.next();
+			console.log(record.get("a.name"));
+		}
+
+		// Named paths matching.
+		res = await graph.query(
+			"MATCH p = (a:person)-[:knows]->(:person) RETURN p"
+		);
+		while (res.hasNext()) {
+			let record = res.next();
+			// See path.js for more path API.
+			console.log(record.get("p").nodeCount);
+			graph.deleteGraph();
+			process.exit();
+		}
+	})();
+} catch (err) {
+	console.log(err);
+}

Diff for: src/graph.js

@@ -7,16 +7,18 @@ const redis = require("redis"),
  * RedisGraph client
  */
 class Graph {
-	/**
-	 * Creates a client to a specific graph running on the specific host/post
-	 * See: node_redis for more options on createClient
-	 *
-	 * @param {string} graphId the graph id
-	 * @param {string | RedisClient} [host] Redis host or node_redis client
-	 * @param {string} [port] Redis port
-	 * @param {ClientOpts} [options] node_redis options
-	 */
-	constructor(graphId, host, port, options) {
+     /**
+      * Creates a client to a specific graph running on the specific host/post
+      * See: node_redis for more options on createClient 
+      * 
+      * @param {string} graphId the graph id
+      * @param {object} [configuration] - a map of:    
+      * @param {string | RedisClient} [configuration.host] Redis host or node_redis client
+	  * @param {string | int} [configuration.port] Redis port
+      * @param {ClientOpts} [configuration.options] node_redis options
+      */
+	constructor(graphId, {host, port, options} ={}) {
+        console.log("host = " + host + " port = " + port + " options = "+ options);
 		this._graphId = graphId;        // Graph ID
 		this._labels = [];              // List of node labels.
 		this._relationshipTypes = [];   // List of relation types.
@@ -29,7 +31,7 @@ class Graph {
 		let client =
 			host instanceof redis.RedisClient
 				? host
-				: redis.createClient.apply(redis, [].slice.call(arguments, 1));
+				: redis.createClient(port, host, options);
 		this._sendCommand = util.promisify(client.send_command).bind(client);
 	}