Guid

guid is a disributed uique id generation framework written in Go (Golang). guid supports two strategies to generate uniqu id: segment and snowflake

Required

• go1.16+

Get Start

go get github.com/ziidu/guid

snowflake

get a id by snowflake method. please see example/snowflakeuid_example.go

segment

you need to create a table, an insert some data. and see example/segmentuid_example.go. you need update connectURL in example/segmentuid_example.go

DROP TABLE IF EXISTS `guid`;
CREATE TABLE `guid` (
    -- business field
    `biz_tag` varchar(128) NOT NULL DEFAULT '',
    -- max id for current segment
    `max_id` bigint(20) NOT NULL DEFAULT '0',
    -- max_id increase by step
    `step` int(11) NOT NULL,
    `description` varchar(256) NOT NULL  DEFAULT '',
    `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    PRIMARY KEY (`biz_tag`)
) ENGINE=InnoDB;

insert into leaf_alloc 
(biz_tag, max_id, step, description) 
VALUES ('order', 10000, 10000, 'order tag')