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util_api.go
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/
util_api.go
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package alipay
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"github.com/SuperH-0630/gopay"
)
// alipay.open.app.alipaycert.download(应用支付宝公钥证书下载)
// 文档地址:https://opendocs.alipay.com/apis/api_9/alipay.open.app.alipaycert.download
func (a *Client) PublicCertDownload(ctx context.Context, bm gopay.BodyMap) (aliRsp *PublicCertDownloadRsp, err error) {
err = bm.CheckEmptyError("alipay_cert_sn")
if err != nil {
return nil, err
}
var bs []byte
if bs, err = a.doAliPay(ctx, bm, "alipay.open.app.alipaycert.download"); err != nil {
return nil, err
}
aliRsp = new(PublicCertDownloadRsp)
if err = json.Unmarshal(bs, aliRsp); err != nil || aliRsp.Response == nil {
return nil, fmt.Errorf("[%w], bytes: %s", gopay.UnmarshalErr, string(bs))
}
if err = bizErrCheck(aliRsp.Response.ErrorResponse); err != nil {
return aliRsp, err
}
certBs, err := base64.StdEncoding.DecodeString(aliRsp.Response.AlipayCertContent)
if err != nil {
return nil, fmt.Errorf("AlipayCertContent(%s)_DecodeErr:%+v", aliRsp.Response.AlipayCertContent, err)
}
aliRsp.Response.AlipayCertContent = string(certBs)
return aliRsp, nil
}