400 Bad request Error on Click

[WillStrohl]

I'm able to get this working using Postman super-easy. I can use JS too, but that requires CORS. This module does the service call server-side, but I think I'm missing something super-obvious.

CloudFlare API Endpoint: https://api.cloudflare.com/#zone-purge-all-files

2020-09-08 17:51:25.664-04:00 [SERVERNAME][D:8][T:108][ERROR] Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper - 
	The remote server returned an error: (400) Bad Request. System.Net.WebException: The remote server returned an error: (400) Bad Request.
	at System.Net.HttpWebRequest.GetResponse()
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendRequest(String serviceUrl, String method, String data, String contentType, Dictionary`2 customHeaders, WebProxy proxy, Int32 timeout) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 167
2020-09-08 17:51:25.680-04:00 [SERVERNAME][D:8][T:108][ERROR] Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper - 
	Error SendRequest: The remote server returned an error: (400) Bad Request. System
	System.ArgumentException: Error SendRequest: The remote server returned an error: (400) Bad Request. System
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendRequest(String serviceUrl, String method, String data, String contentType, Dictionary`2 customHeaders, WebProxy proxy, Int32 timeout) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 177
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendWithData[T](String uri, String method, String data, String contentType, Dictionary`2 customHeaders) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 82
2020-09-08 17:51:25.680-04:00 [SERVERNAME][D:8][T:108][DEBUG] Upendo.Modules.CloudFlareClearCache.Services.CloudFlareController - 
	Upendo.Modules.CloudFlareClearCache.Services.ServiceResponse`1[Upendo.Modules.CloudFlareClearCache.Models.CloudFlareResponse]
2020-09-08 17:51:25.680-04:00 [SERVERNAME][D:8][T:108][ERROR] Upendo.Modules.CloudFlareClearCache.Services.CloudFlareController - 
	EXCEPTION: Error SendRequest: The remote server returned an error: (400) Bad Request. System |    
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendRequest(String serviceUrl, String method, String data, String contentType, Dictionary`2 customHeaders, WebProxy proxy, Int32 timeout) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 177
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendWithData[T](String uri, String method, String data, String contentType, Dictionary`2 customHeaders) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 82
	System.Exception: EXCEPTION: Error SendRequest: The remote server returned an error: (400) Bad Request. System |    
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendRequest(String serviceUrl, String method, String data, String contentType, Dictionary`2 customHeaders, WebProxy proxy, Int32 timeout) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 177
	at Upendo.Modules.CloudFlareClearCache.Services.ServiceHelper.SendWithData[T](String uri, String method, String data, String contentType, Dictionary`2 customHeaders) 
	in C:\Work\DNN.Modules\CloudFlareCache\Modules\CloudFlareClearCache\Services\ServiceHelper.cs:line 82