Twitter, oauth and coldfusion

I am trying to post to twitter. I have the app already authenticated and now want to post an update.

This is what my http post is at:

<cfhttp url="http://api.twitter.com/1/statuses/update.json" method="post">
 <cfhttpparam type="header" name="status" value="#urlEncodedFormat('my test post')#" />
 <cfhttpparam type="header" name="oauth_consumer_key" value="xx开发者_如何学JAVAx" />
 <cfhttpparam type="header" name="oauth_nonce" value="xxx" />
 <cfhttpparam type="header" name="oauth_signature_method" value="#urlEncodedFormat('HMAC-SHA1')#" />
 <cfhttpparam type="header" name="oauth_token" value="xxx" />
 <cfhttpparam type="header" name="oauth_timestamp" value="#GetTickCount()#" />
 <cfhttpparam type="header" name="oauth_version" value="1.0" />
</cfhttp>

Has anyone done this? Am I going down the right route?

have you read this?

http://dev.twitter.com/pages/auth#auth-request

you need to construct the "signature base string" and post as body (warning: untested code, for CF8+)

<cffunction name="makeSignatureBaseString" returntype="string" output="false">
  <cfargument name="httpMethod" type="string" required="true">
  <cfargument name="baseUri" type="string" required="true">
  <cfargument name="values" type="struct" required="true">

  <cfset var signatureBaseString = "#httpMethod#&#URLEncodedFormat(baseUri)#&">
  <cfset var keys = StructKeyArray(values)>
  <cfset var key = "">

  <cfset ArraySort(keys, "textNoCase")>
  <cfloop array="#keys#" index="key">
    <cfset signatureBaseString &= URLEncodedFormat("&#key#=#values[key]#")>
  </cfloop>

  <cfreturn signatureBaseString>
</cffunction>

-

<!--- using values from http://dev.twitter.com/pages/auth#auth-request --->
<cfset params = {
  oauth_consumer_key = "GDdmIQH6jhtmLUypg82gる",
  oauth_nonce = "oElnnMTQIZvqvlfXM56aBLAf5noGD0AQR3Fmi7Q6Y",
  oauth_signature_method = "HMAC-SHA1",
  oauth_token = "819797-Jxq8aYUDRmykzVKrgoLhXSq67TEa5ruc4GJC2rWimw",
  oauth_timestamp = "1272325550",
  oauth_version = "1.0"
}>

<cfhttp url="http://api.twitter.com/1/statuses/update.json" method="POST">
 <cfloop collection="#params#" item="key">
   <cfheader type="header" name="#key#" value="#params[key]#">
 </cfloop>

 <!--- add status to the params for makeSignatureBaseString() --->
 <cfset params.status = "setting up my twitter 私のさえずりを設定する">

 <cfhttpparam type="body"
   value="#makeSignatureBaseString('POST', 'http://api.twitter.com/1/statuses/update.json', params)#">
</cfhttp>