GraphQL query

[ajerni]

I tried to use the GET Request node to receive the result of a GraphQL query, but this did not work.

Any idea how I can execute a GraphQL query? Is there a node in KNIME for this?

This would be my test URL:

https://swapi.graph.cool/?query={allFilms{title}}

[quaeler]

Hi and welcome -

It seems like it is immaterial whether this is a GraphQL query - it seems like you’re interesting in posting a GET and wanting to parse the JSON object(s) that return (i.e there is nothing here that has to do with GraphQL - no?)

If that is the case, the Hub has several examples of processing JSON:

JSON parsing – KNIME Hub

[ajerni]

JSON parsing is not the problem. My question is how I can get the JSON data from above URL into KNIME. The execution step of the GraphQL query is somehow missing…

[quaeler]

Your above URL is not a RESTful call - it produces a pretty web page that includes UI elements to then run a query. I would imagine you could find the RESTful call by monitoring the network connections in your browser, and once you have found the RESTful call, use it in a GET or POST node.

[ajerni]

My understanding is that a GraphQL endpoint is not a RESTful endpoint. Therefore my question: How can I get data from a GraphGL request in to KNIME? There should be an own node where the GraphQL endpoint and the GraphQL query could be configured.

[quaeler]

Eh… the QL is ‘query language’ as you know, it’s not a new alternative to HTTP lest it be named GraphTP instead… plus, the other dead give away is that there is a large button in the middle of a web page that, when clicked, has the web browser perform a network transaction and return results. So we can be sure there is a RESTful call - it might be nice were there a node that formatted whatever that RESTful call is in the payload required, i agree.

Looking at the network connections for you, i see:

Seems like the POST node for you - good luck.

[ajerni]

Thanks a lot for your help.