Can i use input filter type as argument?

[john2094]

It's posible use a where input as argument of query/mutation?. I need apply this filter before resolvers done.

Something like this:

        public async UsersMutationResult UpdateUsers(UpdateUsersInput data, [GraphQLType(typeof(FilterInputType<User>))] object where)
        {
            /// here I need apply where filter input
        }

Another example is how the @neo4j/graphql library does it with its mutations to update, they accept where as a parameter.

https://neo4j.com/docs/graphql-manual/current/mutations/update/

cheers

[zliebersbach]

Edit: @john2094 I found a solution!

You can use the UseFiltering attribute on a mutation and then call the Filter extension method on IQueryable to apply the filter from the context. See example below!

[UseFiltering(typeof(Sample))] // This sets up the filtering
public async Task<IUpdateSamplesResult?> UpdateSamples(Guid id,
        UpdateSampleInput input,
        IResolverContext resolverContext, // Required to read filter context
        [Service] DbShardingManager dbShardingManager)
{
    await using var dbContext = dbShardingManager.ResolveDbContext(id);
    var query = await dbContext.Samples.Filter(resolverContext).ToListAsync(); // This applies the filter from the resolverContext

    // rest of resolver code here
}

[john2094]

Hello!, No, I did not find a solution. I spent a lot of time understanding how the usefilter attribute works and how hot chocolate builds a query, but to no avail. Finally, due to the delivery deadlines of the product I'm working on, I had to put this idea aside, and make my mutation receive a list of ids instead of a query.

[zliebersbach]

@john2094 See my edited response! This solves the issue for me, hope you find it useful. 😄

[john2094]

@zliebersbach, this is Awesone! 🎉. Thanks.