ssdb

SSDB client for golang

Derive from the official client is more in line with the golang style and supports connection pooling.

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• 简体中文

example

package main

import (
	"fmt"

	"github.com/wzshiming/ssdb"
)

func main() {
	db, err := ssdb.Connect(
		ssdb.Addr("127.0.0.1:8888"),
		ssdb.Auth("password"),
		// or ssdb.URL("ssdb://127.0.0.1:8888?Auth=password"),
	)
	if err != nil {
		fmt.Println(err)
		return
	}

	err = db.Set("a", "xxx")
	if err != nil {
		fmt.Println(err)
		return
	}

	val, err := db.Get("a")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(val)

	err = db.Del("a")
	if err != nil {
		fmt.Println(err)
		return
	}

	val, err = db.Get("a")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(val)

	err = db.ZSet("z", "a", 3)
	if err != nil {
		fmt.Println(err)
		return
	}

	err = db.MultiZSet("z", map[string]int64{
		"b": -1,
		"c": 5,
		"d": 3,
	})
	if err != nil {
		fmt.Println(err)
		return
	}

	resp, err := db.ZRange("z", 0, 10)
	if err != nil {
		fmt.Println(err)
		return
	}

	for k, v := range resp {
		fmt.Printf("  %v : %v\n", k, v)
	}

	return
}

API Support

Official Documents
API Documents

• Server
  • auth password - Authenticate the connection.
  • dbsize - Return the approximate size of the database.
  • flushdb [type] - Delete all data in ssdb server.
  • info [opt] - Return the information of server.
  • slaveof id host port [auth last_seq last_key] - Start a replication slave.
• IP Filter
• Key Value
  • set key value - Set the value of the key.
  • setx key value ttl - Set the value of the key, with a time to live.
  • setnx key value - Set the string value in argument as value of the key only if the key doesn"t exist.
  • expire key ttl - Set the time left to live in seconds, only for keys of KV type.
  • ttl key - Returns the time left to live in seconds, only for keys of KV type.
  • get key - Get the value related to the specified key
  • getset key value - Sets a value and returns the previous entry at that key.
  • del key - Delete specified key.
  • incr key [num] - Increment the number stored at key by num.
  • exists key - Verify if the specified key exists.
  • getbit key offset - Return a single bit out of a string.
  • setbit key offset val - Changes a single bit of a string. The string is auto expanded.
  • bitcount key [start] [end] - Count the number of set bits (population counting) in part of a string.
  • countbit key start size - Count the number of set bits (population counting) in part of a string.
  • substr key start size - Return part of a string.
  • strlen key - Return the number of bytes of a string.
  • keys key_start key_end limit - List keys in range (key_start, key_end].
  • rkeys key_start key_end limit - List keys in range (key_start, key_end], in reverse order.
  • scan key_start key_end limit - List key-value pairs with keys in range (key_start, key_end].
  • rscan key_start key_end limit - List key-value pairs with keys in range (key_start, key_end], in reverse order.
  • multi_set key1 value1 key2 value2 ... - Set multiple key-value pairs(kvs) in one method call.
  • multi_get key1 key2 ... - Get the values related to the specified multiple keys
  • multi_del key1 key2 ... - Delete specified multiple keys.
• Hashmap
  • hset name key value - Set the string value in argument as value of the key of a hashmap.
  • hget name key - Get the value related to the specified key of a hashmap
  • hdel name key - Delete specified key in a hashmap.
  • hincr name key [num] - Increment the number stored at key in a hashmap by num
  • hexists name key - Verify if the specified key exists in a hashmap.
  • hsize name - Return the number of key-value pairs in the hashmap.
  • hlist name_start name_end limit - List hashmap names in range (name_start, name_end].
  • hrlist name_start name_end limit - List hashmap names in range (name_start, name_end].
  • hkeys name key_start key_end - List keys of a hashmap in range (key_start, key_end].
  • hgetall name - Returns the whole hash, as an array of strings indexed by strings.
  • hscan name key_start key_end limit - List key-value pairs of a hashmap with keys in range (key_start, key_end].
  • hrscan name key_start key_end limit - List key-value pairs with keys in range (key_start, key_end], in reverse order.
  • hclear name - Delete all keys in a hashmap.
  • multi_hset name key1 value1 key2 value2 ... - Set multiple key-value pairs(kvs) of a hashmap in one method call.
  • multi_hget name key1 key2 ... - Get the values related to the specified multiple keys of a hashmap.
  • multi_hdel name key1 key2 ... - Delete specified multiple keys in a hashmap.
• Sorted Set
  • zset name key score - Set the score of the key of a zset.
  • zget name key - Get the score related to the specified key of a zset
  • zdel name key - Delete specified key of a zset.
  • zincr name key num - Increment the number stored at key in a zset by num.
  • zexists name key - Verify if the specified key exists in a zset.
  • zsize name - Return the number of pairs of a zset.
  • zlist name_start name_end limit - List zset names in range (name_start, name_end].
  • zrlist name_start name_end limit - List zset names in range (name_start, name_end], in reverse order.
  • zkeys name key_start score_start score_end limit - List keys in a zset.
  • zscan name key_start score_start score_end limit - List key-score pairs where key-score in range (key_start+score_start, score_end].
  • zrscan name key_start score_start score_end limit - List key-score pairs of a zset, in reverse order. See method zkeys().
  • zrank name key - Returns the rank(index) of a given key in the specified sorted set.
  • zrrank name key - Returns the rank(index) of a given key in the specified sorted set, in reverse order.
  • zrange name offset limit - Returns a range of key-score pairs by index range [offset, offset + limit).
  • zrrange name offset limit - Returns a range of key-score pairs by index range [offset, offset + limit), in reverse order.
  • zclear name - Delete all keys in a zset.
  • zcount name score_start score_end - Returns the number of elements of the sorted set stored at the specified key which have scores in the range [score_start,score_end].
  • zsum name score_start score_end - Returns the sum of elements of the sorted set stored at the specified key which have scores in the range [score_start,score_end].
  • zavg name score_start score_end - Returns the average of elements of the sorted set stored at the specified key which have scores in the range [score_start,score_end].
  • zremrangebyrank name start end - Delete the elements of the zset which have rank in the range [start,end].
  • zremrangebyscore name start end - Delete the elements of the zset which have score in the range [start,end].
  • zpop_front name limit - Delete limit elements from front of the zset.
  • zpop_back name limit - Delete limit elements from back of the zset.
  • multi_zset name key1 score1 key2 score2 ... - Set multiple key-score pairs(kvs) of a zset in one method call.
  • multi_zget name key1 key2 ... - Get the values related to the specified multiple keys of a zset.
  • multi_zdel name key1 key2 ... - Delete specified multiple keys of a zset.
• List
  • qpush_front name item1 item2 ... - Adds one or more than one element to the head of the queue.
  • qpush_back name item1 item2 ... - Adds an or more than one element to the end of the queue.
  • qpop_front name size - Pop out one or more elements from the head of a queue.
  • qpop_back name size - Pop out one or more elements from the tail of a queue.
  • qpush name item1 item2 ... - Alias of qpush_back.
  • qpop name size - Alias of qpop_front.
  • qfront name - Returns the first element of a queue.
  • qback name - Returns the last element of a queue.
  • qsize name - Returns the number of items in the queue.
  • qclear name - Clear the queue.
  • qget name index - Returns the element a the specified index(position).
  • qset name index val - Description
  • qrange name offset limit - Returns a portion of elements from the queue at the specified range [offset, offset + limit].
  • qslice name begin end - Returns a portion of elements from the queue at the specified range [begin, end].
  • qtrim_front name size - Remove multi elements from the head of a queue.
  • qtrim_back name size - Remove multi elements from the tail of a queue.
  • qlist name_start name_end limit - List list/queue names in range (name_start, name_end].
  • qrlist name_start name_end limit - List list/queue names in range (name_start, name_end], in reverse order.

License

Pouch is licensed under the MIT License. See LICENSE for the full license text.