# POST request using client SSL Certificate **URL:** \ **Category:** Ignition\ **Created:** [January 12, 2017, 12:01am UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551 "2017-01-12T00:01:31Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Jonathan](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Post date:** [January 12, 2017, 12:01am UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/1 "2017-01-12T00:01:31Z")
I am trying to connect to PG&E through their share my data program. They require the client to connect to their web service using a SSL Certificate. I cannot figure out how to use system.net.httpPost with the keystore file I have. Any help would be appreciated. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [January 12, 2017, 12:18am UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/2 "2017-01-12T00:18:05Z")
You’re going to have to do this using Java classes/library instead of system.net.httpPost() This Stack Overflow post should get you going: [stackoverflow.com/questions/3734 … entication](http://stackoverflow.com/questions/3734613/how-to-request-a-url-that-requires-a-client-certificate-for-authentication) ---
**Author:** ![Jonathan](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Post date:** [January 12, 2017, 12:48am UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/3 "2017-01-12T00:48:21Z")
is Apache HTTP Client available in Ignition? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [January 12, 2017, 12:53am UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/4 "2017-01-12T00:53:22Z")
No, but you can add it with a module if you want. You’d be able to create your own HTTP scripting functions that way too. The built-in scripting functions all use HttpURLConnection underneath. ---
**Author:** ![Jonathan](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Post date:** [January 12, 2017, 4:44pm UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/5 "2017-01-12T16:44:42Z")
out of curiosity what library is being used in the function system.net.httpPost? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [January 12, 2017, 5:04pm UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/6 "2017-01-12T17:04:49Z")
[quote=“Kevin.Herron”] The built-in scripting functions all use HttpURLConnection underneath.[/quote] 😃 ---
**Author:** ![Jonathan](https://avatars.discourse-cdn.com/v4/letter/j/aeb1de/32.png) [@Jonathan](https://forum.inductiveautomation.com/u/Jonathan)\ **Post date:** [January 13, 2017, 6:41pm UTC](https://forum.inductiveautomation.com/t/post-request-using-client-ssl-certificate/12551/7 "2017-01-13T18:41:59Z")
I figured how to do this with the libraries already available in java using HttpsURLConnection [code]from [java.net](http://java.net) import URL from java.security import KeyStore from [java.io](http://java.io) import FileInputStream from javax.net.ssl import SSLContext from javax.net.ssl import SSLSocketFactory from [java.io](http://java.io) import BufferedReader from [java.io](http://java.io) import InputStreamReader from [java.io](http://java.io) import OutputStreamWriter from java.lang import String from javax.net.ssl import KeyManagerFactory ksCACert = KeyStore.getInstance(KeyStore.getDefaultType()) password = String(“Put Your Keystore Password HERE”) ksCACert.load(FileInputStream(“Put your file path to your .jks Keystore file HERE”), password.toCharArray()) kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm()) kmf.init(ksCACert, password.toCharArray()) context = SSLContext.getInstance(“TLS”) context.init(kmf.getKeyManagers(), None, None) sslSocketFactory = context.getSocketFactory() url = URL(“[https://URL](https://URL) your are trying to access HERE”) urlConnection = url.openConnection() urlConnection.setDoOutput(1) urlConnection.setDoInput(1) urlConnection.setUseCaches(0) urlConnection.setSSLSocketFactory(sslSocketFactory) #THIS IS WHERE YOU ADD HEADER INFORMATION #may be different headers for you application urlConnection.setRequestProperty(“Authorization”,“Put access code here”) urlConnection.setRequestProperty(“Content-Type”, “application/x-www-form-urlencoded”) urlConnection.setRequestMethod(“POST”) #this is where parameters go #may not need this for your application urlParameters = String(“param1=paraminput”) os = urlConnection.getOutputStream() osw = OutputStreamWriter(os) osw.write(urlParameters) osw.flush() osw.close() os.close() urlConnection.connect() responseCode = urlConnection.getResponseCode() print "Sending ‘POST’ request to URL : " , url print "Post parameters : " , urlParameters print "Response Code : " , responseCode isr = InputStreamReader(urlConnection.getInputStream()) br = BufferedReader(isr) line = br.readLine() while(line != None): print line line = br.readLine() br.close()[/code]