add a fun<List> to support FT._LIST

redisearch/client.go

@@ -2,11 +2,12 @@ package redisearch
 
 import (
 	"errors"
-	"github.com/gomodule/redigo/redis"
 	"log"
 	"reflect"
 	"strconv"
 	"strings"
+
+	"github.com/gomodule/redigo/redis"
 )
 
 // Client is an interface to redisearch's redis commands
@@ -665,3 +666,24 @@ func (i *Client) AddHash(docId string, score float32, language string, replace b
 	}
 	return redis.String(conn.Do("FT.ADDHASH", args...))
 }
+
+// Returns a list of all existing indexes.
+func (i *Client) List() ([]string, error) {
+	conn := i.pool.Get()
+	defer conn.Close()
+
+	res, err := redis.Values(conn.Do("FT._LIST"))
+	if err != nil {
+		return nil, err
+	}
+
+	var indexes []string
+
+	// Iterate over the values
+	for ii := 0; ii < len(res); ii += 1 {
+		key, _ := redis.String(res[ii], nil)
+		indexes = append(indexes, key)
+	}
+
+	return indexes, nil
+}

redisearch/client_test.go

@@ -965,3 +965,29 @@ func TestClient_DropIndex(t *testing.T) {
 	assert.Equal(t, int64(0), result)
 
 }
+
+func TestClient_ListIndex(t *testing.T) {
+	c := createClient("index-list-test")
+	version, err := c.getRediSearchVersion()
+	assert.Nil(t, err)
+	if version <= 10699 {
+		// IndexDefinition is available for RediSearch 2.0+
+		return
+	}
+	// Create a schema
+	schema := NewSchema(DefaultOptions).
+		AddField(NewTextFieldOptions("name", TextFieldOptions{Sortable: true, PhoneticMatcher: PhoneticDoubleMetaphoneEnglish})).
+		AddField(NewNumericField("age"))
+
+	// IndexDefinition is available for RediSearch 2.0+
+	// In this example we will only index keys started by product:
+	indexDefinition := NewIndexDefinition().AddPrefix("index-list-test:")
+
+	// Add the Index Definition
+	c.CreateIndexWithIndexDefinition(schema, indexDefinition)
+	assert.Nil(t, err)
+
+	indexes, err := c.List()
+	assert.Nil(t, err)
+	assert.Equal(t, "index-list-test", indexes[0])
+}