Fix return types.

Signed-off-by: Yury-Fridlyand <yury.fridlyand@improving.com>

Author: Yury-Fridlyand

go/api/base_client.go

@@ -258,7 +258,7 @@ func (client *baseClient) MGet(keys []string) ([]Result[string], error) {
 		return nil, err
 	}
 
-	return handleStringArrayResponse(result)
+	return handleStringOrNilArrayResponse(result)
 }
 
 func (client *baseClient) Incr(key string) (int64, error) {
@@ -391,7 +391,7 @@ func (client *baseClient) HMGet(key string, fields []string) ([]Result[string],
 		return nil, err
 	}
 
-	return handleStringArrayResponse(result)
+	return handleStringOrNilArrayResponse(result)
 }
 
 func (client *baseClient) HSet(key string, values map[string]string) (int64, error) {
@@ -430,7 +430,7 @@ func (client *baseClient) HLen(key string) (int64, error) {
 	return handleIntResponse(result)
 }
 
-func (client *baseClient) HVals(key string) ([]Result[string], error) {
+func (client *baseClient) HVals(key string) ([]string, error) {
 	result, err := client.executeCommand(C.HVals, []string{key})
 	if err != nil {
 		return nil, err
@@ -448,7 +448,7 @@ func (client *baseClient) HExists(key string, field string) (bool, error) {
 	return handleBoolResponse(result)
 }
 
-func (client *baseClient) HKeys(key string) ([]Result[string], error) {
+func (client *baseClient) HKeys(key string) ([]string, error) {
 	result, err := client.executeCommand(C.HKeys, []string{key})
 	if err != nil {
 		return nil, err
@@ -527,13 +527,13 @@ func (client *baseClient) LPop(key string) (Result[string], error) {
 	return handleStringOrNilResponse(result)
 }
 
-func (client *baseClient) LPopCount(key string, count int64) ([]Result[string], error) {
+func (client *baseClient) LPopCount(key string, count int64) ([]string, error) {
 	result, err := client.executeCommand(C.LPop, []string{key, utils.IntToString(count)})
 	if err != nil {
 		return nil, err
 	}
 
-	return handleStringArrayOrNullResponse(result)
+	return handleStringArrayOrNilResponse(result)
 }
 
 func (client *baseClient) LPos(key string, element string) (Result[int64], error) {
@@ -554,7 +554,7 @@ func (client *baseClient) LPosWithOptions(key string, element string, options *L
 	return handleIntOrNilResponse(result)
 }
 
-func (client *baseClient) LPosCount(key string, element string, count int64) ([]Result[int64], error) {
+func (client *baseClient) LPosCount(key string, element string, count int64) ([]int64, error) {
 	result, err := client.executeCommand(C.LPos, []string{key, element, CountKeyword, utils.IntToString(count)})
 	if err != nil {
 		return nil, err
@@ -568,7 +568,7 @@ func (client *baseClient) LPosCountWithOptions(
 	element string,
 	count int64,
 	options *LPosOptions,
-) ([]Result[int64], error) {
+) ([]int64, error) {
 	result, err := client.executeCommand(
 		C.LPos,
 		append([]string{key, element, CountKeyword, utils.IntToString(count)}, options.toArgs()...),
@@ -768,7 +768,7 @@ func (client *baseClient) SMove(source string, destination string, member string
 	return handleBoolResponse(result)
 }
 
-func (client *baseClient) LRange(key string, start int64, end int64) ([]Result[string], error) {
+func (client *baseClient) LRange(key string, start int64, end int64) ([]string, error) {
 	result, err := client.executeCommand(C.LRange, []string{key, utils.IntToString(start), utils.IntToString(end)})
 	if err != nil {
 		return nil, err
@@ -822,13 +822,13 @@ func (client *baseClient) RPop(key string) (Result[string], error) {
 	return handleStringOrNilResponse(result)
 }
 
-func (client *baseClient) RPopCount(key string, count int64) ([]Result[string], error) {
+func (client *baseClient) RPopCount(key string, count int64) ([]string, error) {
 	result, err := client.executeCommand(C.RPop, []string{key, utils.IntToString(count)})
 	if err != nil {
 		return nil, err
 	}
 
-	return handleStringArrayOrNullResponse(result)
+	return handleStringArrayOrNilResponse(result)
 }
 
 func (client *baseClient) LInsert(
@@ -853,22 +853,22 @@ func (client *baseClient) LInsert(
 	return handleIntResponse(result)
 }
 
-func (client *baseClient) BLPop(keys []string, timeoutSecs float64) ([]Result[string], error) {
+func (client *baseClient) BLPop(keys []string, timeoutSecs float64) ([]string, error) {
 	result, err := client.executeCommand(C.BLPop, append(keys, utils.FloatToString(timeoutSecs)))
 	if err != nil {
 		return nil, err
 	}
 
-	return handleStringArrayOrNullResponse(result)
+	return handleStringArrayOrNilResponse(result)
 }
 
-func (client *baseClient) BRPop(keys []string, timeoutSecs float64) ([]Result[string], error) {
+func (client *baseClient) BRPop(keys []string, timeoutSecs float64) ([]string, error) {
 	result, err := client.executeCommand(C.BRPop, append(keys, utils.FloatToString(timeoutSecs)))
 	if err != nil {
 		return nil, err
 	}
 
-	return handleStringArrayOrNullResponse(result)
+	return handleStringArrayOrNilResponse(result)
 }
 
 func (client *baseClient) RPushX(key string, elements []string) (int64, error) {
@@ -1258,12 +1258,12 @@ func (client *baseClient) Unlink(keys []string) (int64, error) {
 	return handleIntResponse(result)
 }
 
-func (client *baseClient) Type(key string) (Result[string], error) {
+func (client *baseClient) Type(key string) (string, error) {
 	result, err := client.executeCommand(C.Type, []string{key})
 	if err != nil {
-		return CreateNilStringResult(), err
+		return defaultStringResponse, err
 	}
-	return handleStringOrNilResponse(result)
+	return handleStringResponse(result)
 }
 
 func (client *baseClient) Touch(keys []string) (int64, error) {
@@ -1275,12 +1275,12 @@ func (client *baseClient) Touch(keys []string) (int64, error) {
 	return handleIntResponse(result)
 }
 
-func (client *baseClient) Rename(key string, newKey string) (Result[string], error) {
+func (client *baseClient) Rename(key string, newKey string) (string, error) {
 	result, err := client.executeCommand(C.Rename, []string{key, newKey})
 	if err != nil {
-		return CreateNilStringResult(), err
+		return defaultStringResponse, err
 	}
-	return handleStringOrNilResponse(result)
+	return handleStringResponse(result)
 }
 
 func (client *baseClient) Renamenx(key string, newKey string) (bool, error) {
@@ -1575,20 +1575,19 @@ func (client *baseClient) BZPopMin(keys []string, timeoutSecs float64) (Result[K
 //
 // Example:
 //
-//	// Retrieve all members of a sorted set in ascending order
-//	result, err := client.ZRange("my_sorted_set", options.NewRangeByIndexQuery(0, -1))
-//
-//	// Retrieve members within a score range in descending order
+//		// Retrieve all members of a sorted set in ascending order
+//		result, err := client.ZRange("my_sorted_set", options.NewRangeByIndexQuery(0, -1))
 //
-// query := options.NewRangeByScoreQuery(options.NewScoreBoundary(3, false),
-// options.NewInfiniteScoreBoundary(options.NegativeInfinity)).
-//
-//	  .SetReverse()
-//	result, err := client.ZRange("my_sorted_set", query)
-//	// `result` contains members which have scores within the range of negative infinity to 3, in descending order
+//		// Retrieve members within a score range in descending order
+//	 query := options.NewRangeByScoreQuery(
+//	     options.NewScoreBoundary(3, false),
+//	     options.NewInfiniteScoreBoundary(options.NegativeInfinity)).
+//	   SetReverse()
+//		result, err := client.ZRange("my_sorted_set", query)
+//		// `result` contains members which have scores within the range of negative infinity to 3, in descending order
 //
 // [valkey.io]: https://valkey.io/commands/zrange/
-func (client *baseClient) ZRange(key string, rangeQuery options.ZRangeQuery) ([]Result[string], error) {
+func (client *baseClient) ZRange(key string, rangeQuery options.ZRangeQuery) ([]string, error) {
 	args := make([]string, 0, 10)
 	args = append(args, key)
 	args = append(args, rangeQuery.ToArgs()...)
@@ -1619,17 +1618,16 @@ func (client *baseClient) ZRange(key string, rangeQuery options.ZRangeQuery) ([]
 //
 // Example:
 //
-//	// Retrieve all members of a sorted set in ascending order
-//	result, err := client.ZRangeWithScores("my_sorted_set", options.NewRangeByIndexQuery(0, -1))
-//
-//	// Retrieve members within a score range in descending order
-//
-// query := options.NewRangeByScoreQuery(options.NewScoreBoundary(3, false),
-// options.NewInfiniteScoreBoundary(options.NegativeInfinity)).
+//		// Retrieve all members of a sorted set in ascending order
+//		result, err := client.ZRangeWithScores("my_sorted_set", options.NewRangeByIndexQuery(0, -1))
 //
-//	  SetReverse()
-//	result, err := client.ZRangeWithScores("my_sorted_set", query)
-//	// `result` contains members with scores within the range of negative infinity to 3, in descending order
+//		// Retrieve members within a score range in descending order
+//	 query := options.NewRangeByScoreQuery(
+//	     options.NewScoreBoundary(3, false),
+//	     options.NewInfiniteScoreBoundary(options.NegativeInfinity)).
+//	   SetReverse()
+//		result, err := client.ZRangeWithScores("my_sorted_set", query)
+//		// `result` contains members with scores within the range of negative infinity to 3, in descending order
 //
 // [valkey.io]: https://valkey.io/commands/zrange/
 func (client *baseClient) ZRangeWithScores(

go/api/generic_base_commands.go

@@ -367,17 +367,17 @@ type GenericBaseCommands interface {
 	//  key - string
 	//
 	// Return value:
-	//  If the key exists, the type of the stored value is returned. Otherwise, a none" string is returned.
+	//  If the key exists, the type of the stored value is returned. Otherwise, a "none" string is returned.
 	//
 	// Example:
 	//	result, err := client.Type([]string{"key"})
 	//	if err != nil {
 	//	    // handle error
 	//	}
-	//	fmt.Println(result.Value()) // Output: string
+	//	fmt.Println(result) // Output: string
 	//
 	// [valkey.io]: Https://valkey.io/commands/type/
-	Type(key string) (Result[string], error)
+	Type(key string) (string, error)
 
 	// Renames key to new key.
 	//  If new Key already exists it is overwritten.
@@ -397,10 +397,10 @@ type GenericBaseCommands interface {
 	//	if err != nil {
 	//	    // handle error
 	//	}
-	//	fmt.Println(result.Value()) // Output: OK
+	//	fmt.Println(result) // Output: OK
 	//
 	// [valkey.io]: https://valkey.io/commands/rename/
-	Rename(key string, newKey string) (Result[string], error)
+	Rename(key string, newKey string) (string, error)
 
 	// Renames key to newkey if newKey does not yet exist.
 	//

go/api/hash_commands.go

@@ -172,17 +172,14 @@ type HashCommands interface {
 	//  key - The key of the hash.
 	//
 	// Return value:
-	//  A slice of Result[string]s containing all the values in the hash, or an empty slice when key does not exist.
+	//  A slice containing all the values in the hash, or an empty slice when key does not exist.
 	//
 	// For example:
 	//  values, err := client.HVals("myHash")
-	//  // value1 equals api.CreateStringResult("value1")
-	//  // value2 equals api.CreateStringResult("value2")
-	//  // value3 equals api.CreateStringResult("value3")
-	//  // values equals []api.Result[string]{value1, value2, value3}
+	//  values: []string{"value1", "value2", "value3"}
 	//
 	// [valkey.io]: https://valkey.io/commands/hvals/
-	HVals(key string) ([]Result[string], error)
+	HVals(key string) ([]string, error)
 
 	// HExists returns if field is an existing field in the hash stored at key.
 	//
@@ -215,16 +212,14 @@ type HashCommands interface {
 	//  key - The key of the hash.
 	//
 	// Return value:
-	//  A slice of Result[string]s containing all the field names in the hash, or an empty slice when key does not exist.
+	//  A slice containing all the field names in the hash, or an empty slice when key does not exist.
 	//
 	// For example:
 	//  names, err := client.HKeys("my_hash")
-	//  // field1 equals api.CreateStringResult("field_1")
-	//  // field2 equals api.CreateStringResult("field_2")
-	//  // names equals []api.Result[string]{field1, field2}
+	//  names: []string{"field1", "field2"}
 	//
 	// [valkey.io]: https://valkey.io/commands/hkeys/
-	HKeys(key string) ([]Result[string], error)
+	HKeys(key string) ([]string, error)
 
 	// HStrLen returns the string length of the value associated with field in the hash stored at key.
 	// If the key or the field do not exist, 0 is returned.