feat: add hstrlen command for hash

Signed-off-by: rfyiamcool <rfyiamcool@163.com>

Author: rfyiamcool

commands_test.go

@@ -2414,6 +2414,22 @@ var _ = Describe("Commands", func() {
 				Equal([]redis.KeyValue{{Key: "key2", Value: "hello2"}}),
 			))
 		})
+
+		It("should HStrLen", func() {
+			hSet := client.HSet(ctx, "hash", "key", "hello")
+			Expect(hSet.Err()).NotTo(HaveOccurred())
+
+			hStrLen := client.HStrLen(ctx, "hash", "key")
+			Expect(hStrLen.Err()).NotTo(HaveOccurred())
+			Expect(hStrLen.Val()).NotTo(Equal(int64(len("hello"))))
+
+			nonHStrLen := client.HGet(ctx, "hash", "key1")
+			Expect(nonHStrLen.Val()).To(Equal(int64(0)))
+
+			hDel := client.HDel(ctx, "hash", "key")
+			Expect(hDel.Err()).NotTo(HaveOccurred())
+			Expect(hDel.Val()).To(Equal(int64(1)))
+		})
 	})
 
 	Describe("hyperloglog", func() {

hash_commands.go

@@ -6,6 +6,7 @@ type HashCmdable interface {
 	HDel(ctx context.Context, key string, fields ...string) *IntCmd
 	HExists(ctx context.Context, key, field string) *BoolCmd
 	HGet(ctx context.Context, key, field string) *StringCmd
+	HStrLen(ctx context.Context, key, field string) *IntCmd
 	HGetAll(ctx context.Context, key string) *MapStringStringCmd
 	HIncrBy(ctx context.Context, key, field string, incr int64) *IntCmd
 	HIncrByFloat(ctx context.Context, key, field string, incr float64) *FloatCmd
@@ -45,6 +46,12 @@ func (c cmdable) HGet(ctx context.Context, key, field string) *StringCmd {
 	return cmd
 }
 
+func (c cmdable) HStrLen(ctx context.Context, key, field string) *IntCmd {
+	cmd := NewIntCmd(ctx, "hstrlen", key, field)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
 func (c cmdable) HGetAll(ctx context.Context, key string) *MapStringStringCmd {
 	cmd := NewMapStringStringCmd(ctx, "hgetall", key)
 	_ = c(ctx, cmd)