HTTP protocol and authentication

[JoseL]

Hello,

I downloaded the HTTP protocol example: http://www.ni.com/example/28153/en/

However, I am not sure where to put the authentication (base64 username:password).

thanks in advance.

[Sam_Sharp]

Which version of LabVIEW are you using?

Newer versions have the HTTP Client library which includes the ability to use HTTP Authorisation:

You can wire a username/password into the Open Handle VI.

[JoseL]

Hello Sam,

Your response is of great help! I will try to see if this helps me and report back.

Joseph

[JoseL]

Hello Sam,

I have coded the GET.vi. I first "open handle", then GET, then close the handle.  I am getting "301Moved Permanently".   I understand this is a redirection. I try the redirected URL and still no luck. I get "could not verify authenticity". 

However, when I insert "www.ni.com" with the above code, I get a 200 Ok.

Also, when I used this site: https://www.hurl.it/ to check out the website for my project, I get a 200 Ok (both redirected URL and original URL is used).

[NIYiran]

Hi Joseph,

What are you trying to GET from? That interaction sounds like something coming from the web service end. 

Regards, 

[JoseL]

Hello Vitsen,

I am trying to do a simple test for now.  Obtain a "200 OK" when excuting the GET.VI.  I have used www.ni.com with sucess. But when I use the website for my project, I get a 301. I use the redirected website I get "could not verify authenticity".

thanks in advance.

[JoseL]

Hello Vitsen,

In my opinion, I think it is on the LabVIEW end because, I have used https://www.hurl.it/ to see if the GET command fails. I does not. But with LabVIEW it fails.  

[NIYiran]

Hi Joseph,

It definitely is strange that your website isn't working. However in most scenarios, OpenHandle.vi from the HTTP client palette works for basic access authorization. Is that what you have set up with your website? Would the base64 representation make any difference?

[JoseL]

Hello Yiran,

I don't think it is an authentication issue. I say this because in the the following website:  https://www.hurl.it/  I can insert the website and get a "200 OK".

[JoseL]

Yiran,

I forgot to mention, that website,  https://www.hurl.it/ , I don't use any authentication.