How to use OAuth1,OAuth2 options in HttpRequest?

Hi Guys,

Now using HttpRequest activity , i just want to pass authentication token to URL. i can able to send via headers option. then what is the purpose of OAuth1,Oauth2 options. i tried to give authentication in every possible way ,but no use .please suggest me why Oauth1,Oauth2 options and how to use that.

Hi Sukesh,

We have recently started using UIPath and got stucked in a step where HTTP request is to be sent to retrieve data from web server. It looks like you were successful in sending the request through headers, would you mind elaborating that procedure so that we would try to implement that in our scenario?

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@sureshf1204 ,Could you explain what is the requirement and where you got stuck ? if i know that ,it would be very help full to me to explain the activity.

Hi Sukesh,

I Am trying to generate the Oauth 2 Token for google calendar API from the HTTP request activity in ui path I tried passing all the required parameters like Client Id, Client Secret in parameters but not successful, Can you suggest me any possible ways to generate the oauth 2 token.

Thanks
Maruthi

I realise this is an old post, but I’m going to leave this here in case anyone else is trying to do step one of the three-legged authentication process using OAuth1. It could also be handy for anyone else trying to do one-legged or two-legged authentication.

What I have found is that the properties in the HttpClient activity under “OAuth1” are effectively useless. I’m not sure why they are even there as they don’t appear to be passed in the http request headers and the documentation provides little information about how to properly construct a request using those properties.

The way around this is to ignore the properties under OAuth1 and simply use the header property under “Options” to send all authentication details.

In the three-legged process after determining the signature to sign the request (which is difficult enough in itself) we need to request a token by constructing the authorization header which looks something like the following:

Authorization Header:

OAuth oauth_callback=“http%3A%2F%2Fmyapp.com%3A3005%2Fdemo%2Fprocess_callback”,
oauth_consumer_key=“OqEqJeafRSF11jBMStrZz”,
oauth_nonce=“K7ny27JTpKVsTgdyLdDfmQQWVLERj2zAK5BslRsqyw”,
oauth_signature=“Pc%2BMLdv028fxCErFyi8KXFM%2BddU%3D”,
oauth_signature_method=“HMAC-SHA1”,
oauth_timestamp=“1300228849”,
oauth_version=“1.0”

Because many of the parameters need to be calculated before sending the request they can be stored in variables. Then it is simply a matter of adding a header with the name “Authorization” and a value containing all the comma separated parameters required as shown in the screenshot below.

This is what I ended up with in the value field in the end:

“OAuth oauth_callback=”"" & oauth_callback & “”", oauth_consumer_key=""" & oauth_consumer_key & “”", oauth_nonce=""" & oauth_nonce & “”", oauth_signature=""" & oauth_signature & “”", oauth_signature_method=""" & oauth_signature_method & “”", oauth_timestamp=""" & oauth_timestamp & “”", oauth_version="“1.0"”"

Hopefully that helps someone get over that hurdle.

Also, I found that using Fiddler was good for debugging this. It allowed me to see that no headers were being sent when using the properties under the “OAuth1” heading of the HttpClient activity. So it just became a question of creating a properly formed authorization request in Postman looking at what the headers should look like and then trying to recreate that using the Headers propery of the HttpClient activity.

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Looks good @Alex_Scott. I too am struggling to find reason for HTTP to be not working when executing the workflow. But same set of values fetch GET 200 St code when done in Preview option of Http Request Wizard in Uipath.

Surprisingly, the end-point e.g I am trying to excess is Yahoo Weather API using OAuth1 and so I passed the consumerKey and consumerSecret code in wizard and it previews fine with parameter values being passed to it. However, same activity us given error for invalid credentials from Yahoo when run in workflow. Attaching snapshots

See if you can please help with suggestions.

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