Node.js integration with MS Exchange EWS

Question

I am attempting to use Node.js to call the SOAP Exchange EWS services. I have created a simple http client like so:

var https = require('https');

var username = 'user';
var password = 'password';
var auth = 'NTLM ' + new Buffer(username + ":" + password).toString('base64');

var options = {
    host : 'exchangehost',
    port : 443,
    method : 'post',
    path : '/Exchange.asmx',
    headers : { Authorization : auth }
};

var request = https.request(options, function(response) {
    console.log('Status: ' + response.statusCode);
};

request.write('<soapenv:Envelope  ...></soapenv:Envelope>');
request.end();

I receive a status code 401, I suspect because I am not doing the three steps involved for NTLM authentication (http://www.innovation.ch/personal/ronald/ntlm.html). Does anyone know of a Node.js module for communicating with Exchange EWS directly or for authenticating using NTLM, or am I going to need to implement that protocol for Node.js myself? Any assistance is greatly appreciated.

Unfortunately I did not. We decided to go with a Kerberos authentication instead in part because of the issues we were having here. — AngryMonkey, Apr 26 '14 at 17:23

score 1 · Accepted Answer · answered Oct 19 '16 at 13:48

1

I have used node-ews successfully to communicate with EWS.

node-ews uses httpntlm internally for NTLM authentication.

Personally, I think node-ews is your best bet, since its pretty much already implemented everything you need to interact with EWS.

answered Oct 19 '16 at 13:48

Aaron C

884
10
25

Hi Aaron, have you by any chance managed to use the GetRoom function? I'm trying to get the calendars for my works room to see which are available – Bidstrup Nov 25 '16 at 16:26
@RasmusBidstrup I have not, however, there are a few steps you must get right. 1) have a well formated JSON object for the request see [issue#27](https://github.com/nmarus/node-ews/issues/27) at `node-ews` project page. 2) make sure the parameters you are using are valid (like correct email address). Feel free to [create an issue](https://github.com/nmarus/node-ews/issues/new) and I will try to help as much as I can. – Aaron C Nov 25 '16 at 18:57
Thank you :-) Im a bit confused about the name EWS are using, Is it correct that its Appointments/meeting for a Room(by email or name) i need to find, and not a Calender? I will make a case trying to explain what I have done and where I'm stuck. – Bidstrup Nov 25 '16 at 19:58

score 0 · Answer 2 · answered Jun 16 '15 at 18:01

0

Have you tried the httpntlm module? https://github.com/SamDecrock/node-http-ntlm

answered Jun 16 '15 at 18:01

Jason

311
4
16

This looks promising and simple. I'm not trying to do this anymore but if someone can verify that it works I'll mark it as accepted since this appears to be a more general purpose NTLM connector. – AngryMonkey Sep 30 '15 at 15:48

score 0 · Answer 3 · answered May 01 '17 at 20:25

Have you tried ews-javascript-api npm module, it has all the features you are looking at + very simple ntlm authentication using ews-javascript-api-auth module. NTLMv2 is also supported.

I added this as answer as it would provide complete answer to question title (integration). These are github links, question is little generic so samples provided at github readme should work.

[disclaimer - I am the author]

score -1 · Answer 4 · answered Dec 18 '12 at 16:56

-1

I've found this one Node.js module that supports communicating with Exchange 2010, however I'm still trying to figure out how to use it personally, the documentation is light. https://npmjs.org/package/exchanger

answered Dec 18 '12 at 16:56

tdm00

89
5

Thanks, looking for more of a direct approach without the module. I'll check that out though and see if the module works as well. – AngryMonkey Jul 01 '13 at 21:49
I tryed to use `exchanger` but at the moment there is an error with `node-expat` that prevented me from further testing. `Error: Cannot find module '../build/Release/node_expat.node'` – Aaron C Oct 19 '16 at 13:40

Node.js integration with MS Exchange EWS

4 Answers4