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xid

Globally unique sortable id generator. A Rust port of https://github.com/rs/xid.

The binary representation is compatible with the Mongo DB 12-byte ObjectId. The value consists of:

• a 4-byte timestamp value in seconds since the Unix epoch
• a 3-byte value based on the machine identifier
• a 2-byte value based on the process id
• a 3-byte incrementing counter, initialized to a random value

The string representation is 20 bytes, using a base32 hex variant with characters [0-9a-v] to retain the sortable property of the id.

See the original xid project for more details.

Usage

println!("{}", xid::new()); //=> bva9lbqn1bt68k8mj62g

Examples

• cargo run --example gen: Generate xid