Attempting to test Docusign REST API in ColdFusion - coldfusion

Question

I found this example and am using it to test the DocuSign REST API in my ColdFusion app. It is the whole of it. I am not not very familiar with the ColdFusion language and am pretty sure I am not handling a response from the server in any way through this request. I do not receive an error and I think that is why and the document/email are not sent.
Can anyone point out where my errors are and help me build in code that will return the error so that I can further troubleshoot the issue? Thanks!
<cffile action="READBINARY" file="875487865.pdf" variable="docData">
<cfset docData = BinaryEncode(docData,"Base64")>
<cfset envelope = "<envelopeDefinition xmlns=""http://www.docusign.com/restapi"">
<status>Sent</status>
<emailSubject>eSignature request</emailSubject>
<emailBlurb>Please sign the document</emailBlurb>
<recipients>
<signers>
<signer>
<recipientId>1</recipientId>
<name>John Doe>john#doe.com</email>
<tabs>
<signHereTabs>
<signHere>
<anchorString>1SI</anchorString>
<documentId>1</documentId>
</signHere>
</signHereTabs>
</tabs>
</signer>
</signers>
</recipients>
<documents>
<document>
<name>875487865.pdf</name>
<documentId>1</documentId>
<fileExtension>pdf</fileExtension>
<documentBase64>#docData#</documentBase64>
</document>
</documents>
</envelopeDefinition>">
<cfhttp url="https://demo.docusign.net/restapi/v2/login_information/envelopes" method="POST" resolveurl="Yes" throwonerror="No">
<cfhttpparam name="X-DocuSign-Authentication" type="HEADER" value=" <DocuSignCredentials><Username>MY_USER_NAME</Username><Password>MY_PASSWORD</Password><IntegratorKey>MY_INT_KEY</IntegratorKey></DocuSignCredentials>">
<cfhttpparam name="Content-Type" type="HEADER" value="application/xml">
<cfhttpparam name="Accept" type="HEADER" value="application/xml">
<cfhttpparam name="Content-Length" type="HEADER" value="#Len(envelope)#">
<cfhttpparam name="request_body" type="BODY" value="#envelope#">
</cfhttp>

Answer 1

Just as Leigh suspected, you are not hitting a valid DocuSign endpoint. I see your POST URL set to this:
https://demo.docusign.net/restapi/v2/login_information/envelopes
Where did you get this URL from as it's not valid? You need to go through the "Making your First API call" section of the DocuSign Developer Center to learn how to properly login (authenticate) and create an envelope / signature request.
https://www.docusign.com/developer-center/quick-start/first-api-call