groupon design

By | August 27, 2021
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rule: {
    rule_id,
    type: discount/one-time
    value: 30%/50$
    limited_user: [usr1, usr2]
    limited_user_grp: [grp1, grp2]
    number_of_usage: 1,
    service: [LYFT, CHIPOTLE]
}

groupon: {
    g_id,
    code: XMASCODE
    rule_id: xxx
    expire_date: 2021/12/31
}

usage: {
    user_id,
    groupon_id,
    time
}