Hotchocolate: Querying a type with multiple variables ( variables based on Fields )

[AALGate]

Good morning,

it is my first time to try GraphQL and i came to this repo, which i can find it's great !

I have a project that i am working on, and i need to query an Entity based on multiple parameters which are their properties.

for example, i have an Entity called ( Booking ) , this Entity has multiple properties like

Booking
{
Id : int
ContactEmail : string
RoomsBookingDetails : (type RoomsBookingDetails )
{
number : int
.....
}

List Persons : (type Person)
{
id : int
name : string
}
}

i want to be able to query this object ( Booking ) / maybe also some sub objects, with multiple parameters

for example :

my query will be something like this

{
query {
booking(id:5, email: "" )
}
}

Sometimes, i want to query with only one parameters

This means that i want to pass dynamic parameters ( based on the Entity Fields ) to my query type,
and i want to resolve this in a single generic Resolver

this could be possible to do ?

i mean with a single resolver, i want to pass multiple params (those params are the Fields of the Entity )

i'm using Code-First approach with .NET Core

i have tried graphql.net, but it seems like i should handle all the passed arguments with multiple resolvers

[AALGate]

PS: i managed to get the solution using the help of Filtering after installing it from Nuget Package

But unfortunately, i couldn't manage to apply the IQueryable on NEST client of Elastic Search

what i did, is to retrieve the whole data from Elastic Search server within the implementation of my Repository, and then apply the IQueryable at the top layer in my QueryType

it looks like i am in need of a Middleware to convert the Queries from GraphQL to NEST client of Elastic Search.

So, this could be possible ? the approach i used puts a large overhead, because it retrieves the whole bunch of data from the ElasticSearch

I believe that you put a huge effort in this project, i really appreciate the hard work you did,
Thanks in advance

[michaelstaib]

So, you want to query an elastic search server?

What you can do if elastic search does not support IQueryable is to implement a query rewriter. The Filter API can be extended by implementing a query visitor.

Here is an example how we did it for queryable.
https://github.com/ChilliCream/hotchocolate/blob/master/src/Core/Types.Filters/QueryableFilterVisitor.cs

[michaelstaib]

If you need help to implement it for nest head over to our slack channel.

[AALGate]

That's fantastic, i really appreciate your great help.
Thank you very very much

@michaelstaib ,Please let me know the Slack channel as the Invitation link on your homepage's footer, is no longer active

https://hotchocolategraphql.slack.com/join/shared_invite/enQtNTA4NjA0ODYwOTQ0LTBkZjNjZWIzMmNlZjQ5MDQyNDNjMmY3NzYzZjgyYTVmZDU2YjVmNDlhNjNlNTk2ZWRiYzIxMTkwYzA4ODA5Yzg

This invite link is no longer active.

[michaelstaib]

OK, fixed the invite link.

https://join.slack.com/t/hotchocolategraphql/shared_invite/enQtNTA4NjA0ODYwOTQ0LTViMzA2MTM4OWYwYjIxYzViYmM0YmZhYjdiNzBjOTg2ZmU1YmMwNDZiYjUyZWZlMzNiMTk1OWUxNWZhMzQwY2Q

[michaelstaib]

@AALGate Can I close this issue?

[AALGate]

Yes, thanks a lot @michaelstaib

I will use another approach to complete the project as soon as possible, due to time constrain :(

[RomanVashchegin]

Hello everyone, I also looking for a way to convert Queries to ElasticSearch Nest client.