DOC-4345 added JSON samples for home page (#3183)

doctests/home_json_example_test.go

@@ -0,0 +1,199 @@
+// EXAMPLE: go_home_json
+// HIDE_START
+package example_commands_test
+
+// HIDE_END
+// STEP_START import
+import (
+	"context"
+	"fmt"
+	"sort"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// STEP_END
+
+func ExampleClient_search_json() {
+	// STEP_START connect
+	ctx := context.Background()
+
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     "localhost:6379",
+		Password: "", // no password docs
+		DB:       0,  // use default DB
+		Protocol: 2,
+	})
+	// STEP_END
+	// REMOVE_START
+	rdb.Del(ctx, "user:1", "user:2", "user:3")
+	rdb.FTDropIndex(ctx, "idx:users")
+	// REMOVE_END
+
+	// STEP_START create_data
+	user1 := map[string]interface{}{
+		"name":  "Paul John",
+		"email": "paul.john@example.com",
+		"age":   42,
+		"city":  "London",
+	}
+
+	user2 := map[string]interface{}{
+		"name":  "Eden Zamir",
+		"email": "eden.zamir@example.com",
+		"age":   29,
+		"city":  "Tel Aviv",
+	}
+
+	user3 := map[string]interface{}{
+		"name":  "Paul Zamir",
+		"email": "paul.zamir@example.com",
+		"age":   35,
+		"city":  "Tel Aviv",
+	}
+	// STEP_END
+
+	// STEP_START make_index
+	_, err := rdb.FTCreate(
+		ctx,
+		"idx:users",
+		// Options:
+		&redis.FTCreateOptions{
+			OnJSON: true,
+			Prefix: []interface{}{"user:"},
+		},
+		// Index schema fields:
+		&redis.FieldSchema{
+			FieldName: "$.name",
+			As:        "name",
+			FieldType: redis.SearchFieldTypeText,
+		},
+		&redis.FieldSchema{
+			FieldName: "$.city",
+			As:        "city",
+			FieldType: redis.SearchFieldTypeTag,
+		},
+		&redis.FieldSchema{
+			FieldName: "$.age",
+			As:        "age",
+			FieldType: redis.SearchFieldTypeNumeric,
+		},
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+	// STEP_END
+
+	// STEP_START add_data
+	_, err = rdb.JSONSet(ctx, "user:1", "$", user1).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = rdb.JSONSet(ctx, "user:2", "$", user2).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	_, err = rdb.JSONSet(ctx, "user:3", "$", user3).Result()
+
+	if err != nil {
+		panic(err)
+	}
+	// STEP_END
+
+	// STEP_START query1
+	findPaulResult, err := rdb.FTSearch(
+		ctx,
+		"idx:users",
+		"Paul @age:[30 40]",
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(findPaulResult)
+	// >>> {1 [{user:3 <nil> <nil> <nil> map[$:{"age":35,"city":"Tel Aviv"...
+	// STEP_END
+
+	// STEP_START query2
+	citiesResult, err := rdb.FTSearchWithArgs(
+		ctx,
+		"idx:users",
+		"Paul",
+		&redis.FTSearchOptions{
+			Return: []redis.FTSearchReturn{
+				{
+					FieldName: "$.city",
+					As:        "city",
+				},
+			},
+		},
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	sort.Slice(citiesResult.Docs, func(i, j int) bool {
+		return citiesResult.Docs[i].Fields["city"] < citiesResult.Docs[j].Fields["city"]
+	})
+
+	for _, result := range citiesResult.Docs {
+		fmt.Println(result.Fields["city"])
+	}
+	// >>> London
+	// >>> Tel Aviv
+	// STEP_END
+
+	// STEP_START query3
+	aggOptions := redis.FTAggregateOptions{
+		GroupBy: []redis.FTAggregateGroupBy{
+			{
+				Fields: []interface{}{"@city"},
+				Reduce: []redis.FTAggregateReducer{
+					{
+						Reducer: redis.SearchCount,
+						As:      "count",
+					},
+				},
+			},
+		},
+	}
+
+	aggResult, err := rdb.FTAggregateWithArgs(
+		ctx,
+		"idx:users",
+		"*",
+		&aggOptions,
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	sort.Slice(aggResult.Rows, func(i, j int) bool {
+		return aggResult.Rows[i].Fields["city"].(string) <
+			aggResult.Rows[j].Fields["city"].(string)
+	})
+
+	for _, row := range aggResult.Rows {
+		fmt.Printf("%v - %v\n",
+			row.Fields["city"], row.Fields["count"],
+		)
+	}
+	// >>> City: London - 1
+	// >>> City: Tel Aviv - 2
+	// STEP_END
+
+	// Output:
+	// {1 [{user:3 <nil> <nil> <nil> map[$:{"age":35,"city":"Tel Aviv","email":"paul.zamir@example.com","name":"Paul Zamir"}]}]}
+	// London
+	// Tel Aviv
+	// London - 1
+	// Tel Aviv - 2
+}