Arbitrary string as an ID

[akornatskyy]

Allow an arbitrary string to be used as an id for collection and job. Drop UUID restriction.

[akornatskyy]

While UUID can be supported, the service will generate IDs per the following:

import (
	"crypto/rand"
	"encoding/base64"
	"io"
)

func NewID() string {
	id := make([]byte, 8)
	_, err := io.ReadAtLeast(rand.Reader, id, 8)
	if err != nil {
		return ""
	}
        if id[0] >= 248 { // Exclude '-' and '_'
		id[0] -= 248
	}
	return base64.RawURLEncoding.EncodeToString(id)
}

[akornatskyy]

Required to match URL safe characters only:

const idPattern = "^[A-Za-z0-9][A-Za-z0-9_\\-]*$"