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Description
A reference example can be found here: https://github.com/FalkorDB/docs/blob/main/index.md
No need to include in all the examples include in all the examples a full working example but only the relevant code snippet for the page, like the code example that is in the page already.
here is an reference example:
{% capture python_code %}
from falkordb import FalkorDB
# Connect to FalkorDB
db = FalkorDB(host='localhost', port=6379)
# Create the 'MotoGP' graph
g = db.select_graph('MotoGP')
# Clear out this graph in case you've run this script before.
g.delete()
g.query("""CREATE
(:Rider {name:'Valentino Rossi'})-[:rides]->(:Team {name:'Yamaha'}),
(:Rider {name:'Dani Pedrosa'})-[:rides]->(:Team {name:'Honda'}),
(:Rider {name:'Andrea Dovizioso'})-[:rides]->(:Team {name:'Ducati'})""")
# Query which riders represents Yamaha?
res = g.query("""MATCH (r:Rider)-[:rides]->(t:Team)
WHERE t.name = 'Yamaha'
RETURN r.name""")
for row in res.result_set:
print(row[0]) # Prints: "Valentino Rossi"
# Query how many riders represent team Ducati ?
res = g.query("""MATCH (r:Rider)-[:rides]->(t:Team {name:'Ducati'}) RETURN count(r)""")
print(res.result_set[0][0]) # Prints: 1
{% endcapture %}
{% capture javascript_code %}
import { FalkorDB } from 'falkordb';
const db = await FalkorDB.connect({
// username: 'myUsername',
// password: 'myPassword',
socket: {
host: 'localhost',
port: 6379
}
})
console.log('Connected to FalkorDB')
const graph = db.selectGraph('MotoGP')
await graph.query(`CREATE (:Rider {name:'Valentino Rossi'})-[:rides]->(:Team {name:'Yamaha'}),
(:Rider {name:'Dani Pedrosa'})-[:rides]->(:Team {name:'Honda'}),
(:Rider {name:'Andrea Dovizioso'})-[:rides]->(:Team {name:'Ducati'})`)
result = await graph.query(`MATCH (r:Rider)-[:rides]->(t:Team)
WHERE t.name = $name RETURN r.name`,
{params: {name: 'Yamaha'}})
console.log(result) // Valentino Rossi
console.log(await db.list())
console.log(await db.info())
db.close()
{% endcapture %}
{% capture java_code %}
package com.falkordb;
import com.falkordb.*;
import java.util.*;
public class FalkorDBExample {
public static void main(String[] args) {
// Connect to FalkorDB
Driver driver = FalkorDB.driver("localhost", 6379);
// Select the graph
Graph graph = driver.graph("MotoGP");
// Create graph data
graph.query("CREATE (:Rider {name:'Valentino Rossi'})-[:rides]->(:Team {name:'Yamaha'}), " +
"(:Rider {name:'Dani Pedrosa'})-[:rides]->(:Team {name:'Honda'}), " +
"(:Rider {name:'Andrea Dovizioso'})-[:rides]->(:Team {name:'Ducati'})");
// Query with parameters
Map<String, Object> params = new HashMap<>();
params.put("name", "Yamaha");
ResultSet resultSet = graph.query(
"MATCH (r:Rider)-[:rides]->(t:Team) " +
"WHERE t.name = $name RETURN r.name", params);
// Process query results
for (Record record : resultSet) {
String riderName = record.getValue("r.name").toString();
System.out.println(riderName); // Valentino Rossi
}
// Close the connection
driver.close();
}
}
{% endcapture %}
{% capture rust_code %}
use falkordb::{FalkorClientBuilder, FalkorConnectionInfo};
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
// Connect to FalkorDB
let connection_info: FalkorConnectionInfo = "falkor://127.0.0.1:6379"
.try_into()
.expect("Invalid connection info");
let client = FalkorClientBuilder::new_async()
.with_connection_info(connection_info)
.build()
.await?;
// Select the 'MotoGP' graph
let mut graph = client.select_graph("MotoGP");
// Clear out this graph in case you've run this script before.
graph.delete().await?;
graph
.query(
r#"CREATE
(:Rider {name:'Valentino Rossi'})-[:rides]->(:Team {name:'Yamaha'}),
(:Rider {name:'Dani Pedrosa'})-[:rides]->(:Team {name:'Honda'}),
(:Rider {name:'Andrea Dovizioso'})-[:rides]->(:Team {name:'Ducati'})"#,
)
.execute()
.await?;
// Query which riders represent Yamaha?
let mut nodes = graph
.query(
r#"MATCH (r:Rider)-[:rides]->(t:Team)
WHERE t.name = 'Yamaha'
RETURN r.name"#,
)
.execute()
.await?;
for node in nodes.data.by_ref() {
println!("{:?}", node);
}
// Query how many riders represent team Ducati?
let mut nodes = graph
.query(r#"MATCH (r:Rider)-[:rides]->(t:Team {name:'Ducati'}) RETURN count(r)"#)
.execute()
.await?;
for node in nodes.data.by_ref() {
println!("{:?}", node);
}
Ok(())
}
{% endcapture %}
{% capture shell_code %}
$ redis-cli -h localhost -p 6379
127.0.0.1:6379> GRAPH.QUERY MotoGP "CREATE (:Rider {name:'Valentino Rossi'})-[:rides]->(:Team {name:'Yamaha'}), (:Rider {name:'Dani Pedrosa'})-[:rides]->(:Team {name:'Honda'}), (:Rider {name:'Andrea Dovizioso'})-[:rides]->(:Team {name:'Ducati'})"
1) 1) "Labels added: 2"
2) "Nodes created: 6"
3) "Properties set: 6"
4) "Relationships created: 3"
5) "Cached execution: 0"
6) "Query internal execution time: 9.155705 milliseconds"
127.0.0.1:6379> GRAPH.QUERY MotoGP "MATCH (r:Rider)-[:rides]->(t:Team) WHERE t.name = 'Yamaha' RETURN r.name"
1) 1) "r.name"
2) 1) 1) "Valentino Rossi"
3) 1) "Cached execution: 0"
2) "Query internal execution time: 5.389149 milliseconds"
127.0.0.1:6379> GRAPH.QUERY MotoGP "MATCH (r:Rider)-[:rides]->(t:Team {name:'Ducati'}) RETURN count(r)"
1) 1) "count(r)"
2) 1) 1) (integer) 1
3) 1) "Cached execution: 0"
2) "Query internal execution time: 1.153678 milliseconds"
{% endcapture %}
{% include code_tabs.html id="code_tabs_0" python=python_code javascript=javascript_code java=java_code rust=rust_code shell=shell_code %}