KV
Work in progress, not ready for prime time.
A simple key/value store on top of SQLite or MySQL (Go port of GitHub's KV).
Aims to be 100% compatible with that implementation.
Initialization
Import the module first:
import "github.com/rubiojr/kv"
MySQL
db, err := kv.New("mysql", "root:toor@tcp(127.0.0.1:3306)/gokv")
Creates the gokv database and a key_values table to store key/values.
SQLite
db, err := kv.New("sqlite", "my.db")
Creates a key_values table in my.db file database to store key/values.
Getting and setting keys
Single keys:
// set a couple of keys
err = db.Set("foo", []byte("bar"), nil)
if err != nil {
panic(err)
}
err = db.Set("stuff", []byte("staff"), nil)
if err != nil {
panic(err)
}
// Get one key
v, err := db.Get("foo")
if err != nil {
panic(err)
}
fmt.Println(string(v)) // prints bar
// Deleting a single key
err := db.Del("foo")
if err != nil {
panic(err)
}
Multiple keys:
// Get multiple keys
values, err := db.MGet("foo", "staff")
if err != nil {
panic(err)
}
// iterate the results
for _, v := range values {
fmt.Println(string(v))
}
// Set multiple keys
values := types.KeyValues{}
values["mset1"] = "msetv1"
values["mset2"] = "msetv2"
err = db.MSet(values, nil)
// Deleting multiple keys
err := db.MDel("mset1", "mset2")
if err != nil {
panic(err)
}
Storing binary values
An example using vmihailenco/msgpack to serialize data.
// store a string as a binary blob
b, err := msgpack.Marshal("blob")
if err != nil {
panic(err)
}
err = db.Set("bin", b, nil)
if err != nil {
panic(err)
}
v, err = db.Get("bin")
if err != nil {
fmt.Println(err)
}
var blobStr string
err = msgpack.Unmarshal(b, &blobStr)
if err != nil {
panic(err)
}
fmt.Println(blobStr)
TODO
- Custom driver options for both MySQL and SQLite
- expiration times
- exists
- mexists
- setnx
- increment
- ttl
- mttl
