Hashids

• niieani/hashids.js
  • 用于混淆 IDs
  • 数字+salt -> hash
  • 不支持负数
  • 默认 alphabet - abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890
  • 默认不会相邻 - 分隔符 - cfhistuCFHISTU

// salt, minLength, alphabet, curses
var hashids = new Hashids('this is my salt', 8, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890');
var id = hashids.encode(12345);
// id = "NkK9gjkv"
// 结果均为 array
console.log(`${id} -> ${hashids.decode(id)[0]}`);

PostgreSQL

create extension if not exists pg_hashids;
-- id_encode(number,salt,min_length,alphabet)
select id_encode(1234567, 'This is my salt', /*min length*/ 10, /* alphabet */ 'abcdefghijABCDxFGHIJ1234567890');
-- id_decode

• iCyberon/pg_hashids

chars	len	range	note
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890	62	a-zA-Z0-9
abcdefghijklmnopqrstuvwxyz1234567890	36	a-z0-9
abcdefghijklmnopqrstuvwxyz1234567890-	37	-a-z0-9	域名有效
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-._~	64	-._~a-zA-Z0-9	URL Safe, RFC 3986