Elli.Api.OAuth.Client.ApiException : Unexpected character encountered while parsing value: <. Path '', line 0, position 0. #20
Comments
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Hey there Ryan. You may need to manually url-encode your client secret, if it has one or several special characters in it (I know ours does, and I got a similar error initially). Certain special characters (e.g. ^) need to be replaced with their escaped values (^, for example, needs to be replaced with the string %5E).
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From: Ryan Johnson <notifications@github.com>
Sent: Wednesday, September 26, 2018 8:43 PM
To: EllieMae/developerconnect-dotnet-bindings <developerconnect-dotnet-bindings@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Subject: [EllieMae/developerconnect-dotnet-bindings] Elli.Api.OAuth.Client.ApiException : Unexpected character encountered while parsing value: <. Path '', line 0, position 0. (#20)
[External Email]
Hello,
When trying to retrieve the access token I get this exception with the below stack trace:
Client Code:
var credentials = new UserCredential
{
Password = "MyPassword",
IdentityType = IdentityType.Lender,
InstanceId = "MyInstanceId",
UserName = "MyUserName",
};
ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true;
var accessToken = AccessToken.GetAccessToken(credentials);
StackTrace:
Elli.Api.OAuth.Client.ApiException : Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
at Elli.Api.OAuth.Client.ApiClient.Deserialize(IRestResponse response, Type type)
at Elli.Api.OAuth.Api.TokenApi.GenerateTokenWithHttpInfo(String grantType, String username, String password, String scope, String redirectUri, String code, String session)
at Elli.Api.Base.AccessToken.GetAccessToken(UserCredential credentials, String apiClientId, String clientSecret)
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Thank you for the quick reply @paulmoseley . I url encoded the secret as well as the password, but I am still getting the same exception. It seems to do the API web request, but can't deserialize the response correctly. Should the Authorization header have a space in the value? ie "Basic " Also in the config file I noticed the apiHost value I got from this repo has "https://api.elliemae.com.com". Should the value be "https://api.elliemae.com" instead? Not sure if this is a typo. If I do the same API call with "https://api.elliemae.com" I get this APIException (below) so I'm not sure if I'm dealing with an actual authentication issue or some parsing issue in the deserializer. Thanks again. |
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Hmm. The apiHost value should definitely be ‘https://api.elliemae.com’, no doubling of the .com 😊. Given that, the response you’re getting below (the ‘invalid client’ one) is probably the correct response. Not sure whether you also need to url-encode the password (mine doesn’t need url-encoding), so you could try un-encoding that, I guess (?).
Just noticed the most important thing, though, maybe. My successful access token call has 3 arguments in the GetAccessToken method call, not one. I think you need to include the client key and client secret in your call, like this:
var accessToken = AccessToken.GetAccessToken(credentials, encApiKeyClient, encApiKeySecret);
I got this 3-argument call from the sample code Ellie Mae included on its GitHub site. The related stuff in my web.config file looks like this:
<configSections>
<section name="ElliApiConfig" type="Elli.Api.Base.ApiConfiguration, Elli.Api.Base" />
</configSections>
<ElliApiConfig apiHost="https://api.elliemae.com" apiClientId="" clientSecret="" idpHost="idp.elliemae.com" redirectUrl="" />
When I used Postman to play around with this, and check things out, I saw that the Authorization Header that got auto-created when I used the ‘Authorization’ section to enter the client key and secret started with ‘Basic ‘. Not sure how or if that applies to direct calls from code.
Hope this helps!
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paul moseley
software engineer
tag – application and data engineering (ade) – integration systems
mobile: 503-915-6163
Web<http://www.umpquabank.com/> | Facebook<http://www.facebook.com/umpquabank> | Twitter<http://www.twitter.com/umpquabank>
From: Ryan Johnson <notifications@github.com>
Sent: Thursday, September 27, 2018 9:58 AM
To: EllieMae/developerconnect-dotnet-bindings <developerconnect-dotnet-bindings@noreply.github.com>
Cc: Paul Moseley <PaulMoseley@UmpquaBank.com>; Mention <mention@noreply.github.com>
Subject: Re: [EllieMae/developerconnect-dotnet-bindings] Elli.Api.OAuth.Client.ApiException : Unexpected character encountered while parsing value: <. Path '', line 0, position 0. (#20)
[External Email]
Thank you for the quick reply @paulmoseley<https://github.com/paulmoseley> .
I url encoded the secret as well as the password, but I am still getting the same exception. It seems to do the API web request, but can't deserialize the response correctly.
Should the Authorization header have a space in the value? ie "Basic "
Also in the config file I noticed the apiHost value I got from this repo has "https://api.elliemae.com.com". Should the value be "https://api.elliemae.com" instead? Not sure if this is a typo.
If I do the same API call with "https://api.elliemae.com" I get this APIException (below) so I'm not sure if I'm dealing with an actual authentication issue or some parsing issue in the deserializer.
Elli.Api.OAuth.Client.ApiException: 'Error calling GenerateToken: {"error_description":"Invalid client or client credentials","error":"invalid_client"}
'
Thanks again.
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Thank you for clearing up the URL issue. That helped narrow down the issue to an actual authentication error with our token, which we have now resolved. This issue can be closed! |
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@ryanxjohnson |
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Hello,
When trying to retrieve the access token I get this exception with the below stack trace:
Client Code:
StackTrace:
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