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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.
201 lines
3.3 KiB
Go
201 lines
3.3 KiB
Go
// EXAMPLE: cmds_generic
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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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"math"
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"time"
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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_del_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, "key1", "key2", "key3")
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// REMOVE_END
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// STEP_START del
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delResult1, err := rdb.Set(ctx, "key1", "Hello", 0).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(delResult1) // >>> OK
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delResult2, err := rdb.Set(ctx, "key2", "World", 0).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(delResult2) // >>> OK
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delResult3, err := rdb.Del(ctx, "key1", "key2", "key3").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(delResult3) // >>> 2
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// STEP_END
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// Output:
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// OK
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// OK
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// 2
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}
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func ExampleClient_expire_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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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "mykey")
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// REMOVE_END
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// STEP_START expire
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expireResult1, err := rdb.Set(ctx, "mykey", "Hello", 0).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult1) // >>> OK
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expireResult2, err := rdb.Expire(ctx, "mykey", 10*time.Second).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult2) // >>> true
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expireResult3, err := rdb.TTL(ctx, "mykey").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(math.Round(expireResult3.Seconds())) // >>> 10
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expireResult4, err := rdb.Set(ctx, "mykey", "Hello World", 0).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult4) // >>> OK
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expireResult5, err := rdb.TTL(ctx, "mykey").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult5) // >>> -1ns
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expireResult6, err := rdb.ExpireXX(ctx, "mykey", 10*time.Second).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult6) // >>> false
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expireResult7, err := rdb.TTL(ctx, "mykey").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult7) // >>> -1ns
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expireResult8, err := rdb.ExpireNX(ctx, "mykey", 10*time.Second).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(expireResult8) // >>> true
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expireResult9, err := rdb.TTL(ctx, "mykey").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(math.Round(expireResult9.Seconds())) // >>> 10
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// STEP_END
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// Output:
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// OK
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// true
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// 10
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// OK
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// -1ns
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// false
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// -1ns
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// true
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// 10
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}
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func ExampleClient_ttl_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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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "mykey")
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// REMOVE_END
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// STEP_START ttl
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ttlResult1, err := rdb.Set(ctx, "mykey", "Hello", 10*time.Second).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(ttlResult1) // >>> OK
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ttlResult2, err := rdb.TTL(ctx, "mykey").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(math.Round(ttlResult2.Seconds())) // >>> 10
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// STEP_END
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// Output:
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// OK
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// 10
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}
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