curl --location --request GET 'https://gldopenapi.keruyun.com/oauth2/accessToken?appKey=' \
--header 'Content-Type: application/json' \
--data-raw '{
"coupons":["123456789012345601"],
"shopId":810094162,
"tradeNo":1234567890
}'
{
"access_token": "89a4c9d3-b146-3b1a-8a3f-b3c67f1200db",
"expire_in": 604800
}