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zeekay
6994cf05aa
We do not use Redis. The client was a go-redis fork and still said so
everywhere: `package redis`, `redis.NewClient`, `redis://`, `extra/redisotel`.
Consumers wrote `redis.Client` against a Valkey-backed store called KV.
package redis -> package kv (93 decls)
redis.X -> kv.X (2,794 call sites)
"redis: …" errors -> "kv: …" (206)
extra/redis{otel,cmd,prometheus,census} -> extra/kv{otel,cmd,prometheus,census}
redis:// , rediss:// -> kv:// , kvs:// (ParseURL)
Redis*/*Redis* idents -> KV*/*KV*
REDIS_VERSION, REDIS_ENDPOINTS_CONFIG_PATH -> KV_*
I previously argued this rename was unsafe because much of it was "wire
contract". That was wrong, and the categorisation shows why: RESP command names
are GET/SET/HSET — they never contain the word. Of 5,771 occurrences only two
kinds were server-visible at all: the ParseURL scheme (we choose what we pass;
our configs already use kv://) and the CLIENT SETINFO lib-name label, which the
server merely records. Nothing here changes a byte of protocol.
Two things deliberately keep the old spelling:
RediSearch — names a specific external module the FT.* commands map to.
StoreDist — contains the letters by accident (sto-reDis-t), not the word.
Breaking for consumers by design: every import site must move redis.X -> kv.X.
Minor bump, never a major — this module stays v9 forever.
229 lines
3.9 KiB
Go
229 lines
3.9 KiB
Go
// EXAMPLE: cmds_sorted_set
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// HIDE_START
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package example_commands_test
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import (
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"context"
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"fmt"
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"github.com/hanzokv/go/v9"
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)
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// HIDE_END
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func ExampleClient_zadd_cmd() {
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ctx := context.Background()
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rdb := kv.NewClient(&kv.Options{
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Addr: "localhost:6379",
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Password: "", // no password docs
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DB: 0, // use default DB
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})
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// REMOVE_START
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// make sure we are working with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "myzset")
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// REMOVE_END
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// STEP_START zadd
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zAddResult1, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "one", Score: 1},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zAddResult1) // >>> 1
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zAddResult2, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "uno", Score: 1},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zAddResult2)
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zAddResult3, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "two", Score: 2},
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kv.Z{Member: "three", Score: 3},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zAddResult3) // >>> 2
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zAddResult4, err := rdb.ZRangeWithScores(ctx, "myzset", 0, -1).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zAddResult4) // >>> [{1 one} {1 uno} {2 two} {3 three}]
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// STEP_END
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// Output:
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// 1
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// 1
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// 2
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// [{1 one} {1 uno} {2 two} {3 three}]
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}
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func ExampleClient_zrange1() {
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ctx := context.Background()
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rdb := kv.NewClient(&kv.Options{
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Addr: "localhost:6379",
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Password: "", // no password docs
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DB: 0, // use default DB
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})
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// REMOVE_START
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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "myzset")
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// REMOVE_END
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// STEP_START zrange1
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zrangeResult1, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "one", Score: 1},
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kv.Z{Member: "two", Score: 2},
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kv.Z{Member: "three", Score: 3},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zrangeResult1) // >>> 3
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zrangeResult2, err := rdb.ZRange(ctx, "myzset", 0, -1).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zrangeResult2) // >>> [one two three]
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zrangeResult3, err := rdb.ZRange(ctx, "myzset", 2, 3).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zrangeResult3) // >>> [three]
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zrangeResult4, err := rdb.ZRange(ctx, "myzset", -2, -1).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zrangeResult4) // >>> [two three]
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// STEP_END
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// Output:
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// 3
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// [one two three]
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// [three]
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// [two three]
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}
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func ExampleClient_zrange2() {
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ctx := context.Background()
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rdb := kv.NewClient(&kv.Options{
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Addr: "localhost:6379",
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Password: "", // no password docs
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DB: 0, // use default DB
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})
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// REMOVE_START
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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "myzset")
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// REMOVE_END
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// STEP_START zrange2
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zRangeResult5, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "one", Score: 1},
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kv.Z{Member: "two", Score: 2},
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kv.Z{Member: "three", Score: 3},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zRangeResult5) // >>> 3
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zRangeResult6, err := rdb.ZRangeWithScores(ctx, "myzset", 0, 1).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zRangeResult6) // >>> [{1 one} {2 two}]
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// STEP_END
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// Output:
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// 3
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// [{1 one} {2 two}]
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}
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func ExampleClient_zrange3() {
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ctx := context.Background()
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rdb := kv.NewClient(&kv.Options{
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Addr: "localhost:6379",
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Password: "", // no password docs
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DB: 0, // use default DB
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})
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// REMOVE_START
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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "myzset")
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// REMOVE_END
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// STEP_START zrange3
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zRangeResult7, err := rdb.ZAdd(ctx, "myzset",
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kv.Z{Member: "one", Score: 1},
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kv.Z{Member: "two", Score: 2},
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kv.Z{Member: "three", Score: 3},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zRangeResult7) // >>> 3
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zRangeResult8, err := rdb.ZRangeArgs(ctx,
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kv.ZRangeArgs{
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Key: "myzset",
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ByScore: true,
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Start: "(1",
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Stop: "+inf",
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Offset: 1,
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Count: 1,
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},
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(zRangeResult8) // >>> [three]
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// STEP_END
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// Output:
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// 3
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// [three]
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}
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