How Integration Object works

Question

Hi, 
 How Integration object is different from httpQuery? I'm trying to create an Integration object to get some data from external system. It is returning some proxy error where as I've got the response when I use httpQuery. Any idea how these functions are working ? what are the core logic behind these two. 
 
 Thanks in Advance 
 Ravikumar.

aloks0189 · Answer

Hi V V Ravikumar Lingupanda couple of questions here: 
 
1. May i know, what version of Appian you are working with? 
2. If you are working with 17.2 or higher then you are not recommended to use httpQuery() function because this was deprecated in Appian v 17.2 and will be removed in future. 
 
Now, if you have used this, just for the test purpose then this shouldn't be an issue. 
 
Now coming to your point. 
 
There are few differences between httpQuery and Integration Object as mention below: 
 
1. While working with httpQuery() function, you need to write good amount of coding whereas Integration Object provides you this feature using few clicks. 
 
2. httpQuery() used for invoking read-only web service operations where as Integration Object can be used for various Web-Service Operation depending on our need as well as configure and this can be done just by changing the method and their respective content (Parameters, Headers , Body) 
 
3. Integration Object allows you to use Connected System Object as well whereas httpQuery() doesn't. 
 
4. Integration Object provides an feature of Automatic Output Parsing, Error Handling OOTB where as while using httpQuery() we need to write our custom code to do so. 
 
5. Because Integration Object can use Connected Systems, hence this has increased the capabilities of interacting with various services having different Authentication Mechanism e.g. OAuth 
 
6. httpQuery can access Third Party Credentials using a!httpAuthenticationBasic() whereas Integration Object cannot, because now the same can be done by using Connected System. 
 
7. While testing a service, it's easy to segregate the Request vs Response while working with Integration Object

Now coming to the problem statement which you are facing: 
 
I believe, this might be because of some mismatch in the configuration. You need to make sure that the configurations (including, Auth Type, Parameters, Headers (if any)) must be same as what you have passed under httpQuery() 
 
Also, is it possible for you to attach the screenshot of your Integration Object and the httpQuery() so that it will be easy for the practitioner to identify the issue.

Hope this helps.