parameterized REST request is not working
JeffJochems opened this issue · 3 comments
Issue
When contructing a REST dataset, I would like to use a paramter in my request body.
According to the documentation, this is possible with the standard syntax $P{parameter_name}. When doing so however, knowage does not respond as expected.
It either produces an error when the (number) parameter is passed literaly in this way e.g. {"year":$P{year}}: 400 Bad request
Or, when the parameter is passed as a string, it results in knowage sending a request with $P{parameter_name} directly to the API. E.g. when sending {"year":"$P{year}"}, my API recieves {"year":"$P{year}"}.
How to reproduce
To reproduce this, let's use the publicly available API: dummy.restapiexample.com
- Create a knowage dataset with a non paramterized request body for the example API [screenshots 1,2]
- The preview results in the correct API response [screenshot 3]
- Set the paramter in Knowage and parameterize the request body with "$P{paramter_name}" [screenshot 4,5]
- See the hardcoded string sent to the API with preview [screenshot 6]
Expected behavior
When using a parameter in the request body it should result in the same response as when these parameters are specified explicitly. (Screenshot 6 should be the same as screenshot 3)
Screenshots
Screenshot 1 and 2:
Screenshot 3:
Screenshot 4 and 5:
Screenshot 6:
The error i recieve when trying to post a numerical parameter is:
Hi @JeffJochems, it's a known problem and I have an assigned issue about it in our internal tracker. Actually, i don't know when I will have time to schedule the fix, I hope to work on it before September.
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