xid

xid provides a quality hash, based on MongoDB's object ID hash.

Features:

• Size: 12 bytes (96 bits), smaller than UUID, larger than snowflake
• Base32 hex encoded by default (20 chars when transported as printable string, still sortable)
• Non configured, you don't need set a unique machine and/or data center id
• K-ordered
• Embedded time with 1 second precision
• Unicity guaranteed for 16,777,216 (24 bits) unique ids per second and per host/process
• Lock-free (i.e.: unlike UUIDv1 and v2)

Best used with zerolog's RequestIDHandler.

(linking zerolog)

ported to many languages.