主题：api调用

老师，请教一下这个API调用怎么写，对json不懂，请修改一下，验证成功提示验证成功，不通过返回验证不通过。

https://market.aliyun.com/products/57000002/cmapi028399.html?spm=5176.2020520132.101.2.760c7218RLClrX#sku=yuncode2239900000

‘代码如下

Dim hc As New HttpClient("http://verinvoice.sinosecu.com.cn/verapi/verInvoice.Do")
hc.Headers.Add("Authorization","APPCODE" & "输入你的appode********")
hc.FormData.Add("invoiceCode",e.Form.Controls("fa piao代码").Text)     
hc.FormData.Add("invoiceNumber",e.Form.Controls("fa piao号码").Text)
hc.FormData.Add("billingDate",e.Form.Controls("开piao日期").Text)     
hc.FormData.Add("totalAmount",e.Form.Controls("合计金额").Text)     
hc.FormData.Add("checkCode",e.Form.Controls("校验码").Text)         
Dim jo As JObject = Jobject.Parse(hc.GetData)
If jo IsNot Nothing Then
    'MessageBox.Show("验证通过")
End If