ynn-ms-idalloc/src/controller/flake.js

Ynn micro-service module for ID allocation. Supported FlakeID and UUID.

const Flake = require( 'flake-idgen' );
const intformat = require( 'biguint-format' );

module.exports = class extends require( 'ynn' ).Controller {
    /**
     * to generate a flake id
     * @get {string} format - the format of the return value, supporting dec, bin, hex and oct. to get more information from https://github.com/T-PWK/biguint-format
     *
     * @resoponse {json} - {
     *     id : {string}
     * }
     */
    async indexAction() {
        const flake = new Flake( this.config( 'flake' ) );
        const { format = 'dec' } = this.ctx.query;
        const id = intformat( flake.next(), format ); 

        if( !id ) {
            this.throw( 400, 'unsupported format' );
        }

        return { id };
    }
}