redisgraph-go is a Golang client for the RedisGraph module. It relies on redigo for Redis connection management and provides support for RedisGraph's QUERY, EXPLAIN, and DELETE commands.
Simply do:
$ go get github.com/redislabs/redisgraph-goThe complete redisgraph-go API is documented on GoDoc.
package main
import (
"fmt"
"os"
"github.com/gomodule/redigo/redis"
rg "github.com/redislabs/redisgraph-go"
)
func main() {
conn, _ := redis.Dial("tcp", "127.0.0.1:6379")
defer conn.Close()
graph := rg.GraphNew("social", conn)
graph.Delete()
john := rg.Node{
Label: "person",
Properties: map[string]interface{}{
"name": "John Doe",
"age": 33,
"gender": "male",
"status": "single",
},
}
graph.AddNode(&john)
japan := rg.Node{
Label: "country",
Properties: map[string]interface{}{
"name": "Japan",
},
}
graph.AddNode(&japan)
edge := rg.Edge{
Source: &john,
Relation: "visited",
Destination: &japan,
}
graph.AddEdge(&edge)
graph.Commit()
query := `MATCH (p:person)-[v:visited]->(c:country)
RETURN p.name, p.age, c.name`
// result is a QueryResult struct containing the query's generated records and statistics.
result, _ := graph.Query(query)
// Pretty-print the full result set as a table.
result.PrettyPrint()
// Iterate over each individual Record in the result.
fmt.Println("Visited countries by person:")
for result.Next() { // Next returns true until the iterator is depleted.
// Get the current Record.
r := result.Record()
// Entries in the Record can be accessed by index or key.
pName := r.GetByIndex(0)
fmt.Printf("\nName: %s\n", pName)
pAge, _ := r.Get("p.age")
fmt.Printf("\nAge: %d\n", pAge)
}
// Path matching example.
query = "MATCH p = (:person)-[:visited]->(:country) RETURN p"
result, err := graph.Query(query)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
fmt.Println("Pathes of persons visiting countries:")
for result.Next() {
r := result.Record()
p, ok := r.GetByIndex(0).(rg.Path)
fmt.Printf("%s %v\n", p, ok)
}
}Running the above produces the output:
+----------+-------+--------+
| p.name | p.age | c.name |
+----------+-------+--------+
| John Doe | 33 | Japan |
+----------+-------+--------+
Query internal execution time 1.623063
Name: John Doe
Age: 33Queries can be run with a millisecond-level timeout as described in the module documentation. To take advantage of this feature, the QueryOptions struct should be used:
options := NewQueryOptions().SetTimeout(10) // 10-millisecond timeout
res, err := graph.QueryWithOptions("MATCH (src {name: 'John Doe'})-[*]->(dest) RETURN dest", options)ParameterizedQueryWithOptions and ROQueryWithOptions endpoints are also exposed by the client.
A simple test suite is provided, and can be run with:
$ go testThe tests expect a Redis server with the RedisGraph module loaded to be available at localhost:6379
redisgraph-go is distributed under the BSD3 license - see LICENSE
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