# Issue coupons

# Interface call request specification

Http request method: POST

# Request Parameter Sample

    "openid": "xxxx",
    "coupon_id": 123

# Return Package Example

    "errcode": 0,
    "errmsg": "ok"

# Request Parameter Dxplaination

parameter type Is it necessary to fill out Introductions
openid string yes User openid
coupon_id number yes Coupon ID, available from Get Coupons

# Return parameter specification

parameter type Introductions
Errcode number Error code
errmsg string Error message

# Return code

Return code Type of error
-1 System exception
-2 Token is too long
9401020 Wrong parameter
109100 Coupon status is wrong
109101 Insufficient inventory of coupons
109102 The coupon hasn't expired yet.
109103 Coupon Limited