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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.
182 lines
2.9 KiB
Go
182 lines
2.9 KiB
Go
// EXAMPLE: set_tutorial
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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_set_get() {
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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, "bike:1")
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// REMOVE_END
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// STEP_START set_get
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res1, err := rdb.Set(ctx, "bike:1", "Deimos", 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(res1) // >>> OK
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res2, err := rdb.Get(ctx, "bike: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(res2) // >>> Deimos
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// STEP_END
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// Output:
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// OK
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// Deimos
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}
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func ExampleClient_setnx_xx() {
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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.Set(ctx, "bike:1", "Deimos", 0)
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// REMOVE_END
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// STEP_START setnx_xx
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res3, err := rdb.SetNX(ctx, "bike:1", "bike", 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(res3) // >>> false
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res4, err := rdb.Get(ctx, "bike: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(res4) // >>> Deimos
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res5, err := rdb.SetXX(ctx, "bike:1", "bike", 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(res5) // >>> OK
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// STEP_END
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// Output:
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// false
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// Deimos
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// true
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}
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func ExampleClient_mset() {
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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, "bike:1", "bike:2", "bike:3")
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// REMOVE_END
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// STEP_START mset
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res6, err := rdb.MSet(ctx, "bike:1", "Deimos", "bike:2", "Ares", "bike:3", "Vanth").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res6) // >>> OK
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res7, err := rdb.MGet(ctx, "bike:1", "bike:2", "bike: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(res7) // >>> [Deimos Ares Vanth]
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// STEP_END
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// Output:
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// OK
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// [Deimos Ares Vanth]
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}
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func ExampleClient_incr() {
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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, "total_crashes")
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// REMOVE_END
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// STEP_START incr
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res8, err := rdb.Set(ctx, "total_crashes", "0", 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(res8) // >>> OK
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res9, err := rdb.Incr(ctx, "total_crashes").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res9) // >>> 1
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res10, err := rdb.IncrBy(ctx, "total_crashes", 10).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res10) // >>> 11
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// STEP_END
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// Output:
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// OK
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// 1
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// 11
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}
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