Support inputting arguments for GraphQL Variables

Moved from GitHub ratel/65

Posted by danielmai:

In Ratel, the only way to run queries with GraphQL Variables is to pass the arguments as default values (e.g., $a: int = 10). It’d be useful to input arguments to a query without modifying the query itself.

felixfbecker commented :

Yes, this makes it really difficult to copy-paste queries (need to manually replace all the variables with values)

paulftw commented :

Query Variables UI is available in the dev builds. Please post feedback here

paulftw commented :

Fixed in Query vars (WIP) by paulftw · Pull Request #210 · dgraph-io/ratel · GitHub