Dataloader Query Variables

[alexmarmon]

Is there any way to access query variables inside of the dataloader? I've tried utilizing IResolverContext and IHttpContextAccessor with no luck. It also doesn't seem to be possible to pass more than one variable into the dataloader.

In my model:

        public async Task<bool> isOnHold([Parent] Package parent, IsOnHoldDataLoader dataLoader) {
            return await dataLoader.LoadAsync(parent.Id);
        }

The dataloader:

public class IsOnHoldDataLoader : BatchDataLoader<string, bool> {
        private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
        private IHttpContextAccessor _contextAccessor;
        private IResolverContext _resolverContext;

        public IsOnHoldDataLoader(
            IDbContextFactory<AppDbContext> dbContextFactory,
            IHttpContextAccessor contextAccessor,
            IBatchScheduler batchScheduler,
            IResolverContext resolverContext,
            DataLoaderOptions options = null)
            : base(batchScheduler, options) {
            _dbContextFactory = dbContextFactory;
            _contextAccessor = contextAccessor;
            _resolverContext = resolverContext;
        }
        
        protected override async Task<IReadOnlyDictionary<string, bool>> LoadBatchAsync(
            IReadOnlyList<string> ids,
            CancellationToken cancellationToken) {
            await using AppDbContext dbContext =
                _dbContextFactory.CreateDbContext();

            // _resolverContext = null; :(

            return ids.ToDictionary(x => x, x => true);
        }
}

[PascalSenn]

You currently have to pass them in through the key. You can use tuples or records as the key.

public record struct Example(string Key, Variables Variables)

public class IsOnHoldDataLoader : BatchDataLoader< Example, bool> {
        private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
        private IHttpContextAccessor _contextAccessor;
        private IResolverContext _resolverContext;

        public IsOnHoldDataLoader(
            IDbContextFactory<AppDbContext> dbContextFactory,
            IBatchScheduler batchScheduler,
            DataLoaderOptions options = null)
            : base(batchScheduler, options) {
            _dbContextFactory = dbContextFactory;
        }
        
        protected override async Task<IReadOnlyDictionary< Example, bool>> LoadBatchAsync(
            IReadOnlyList< Example> ids,
            CancellationToken cancellationToken) {
            await using AppDbContext dbContext =
                _dbContextFactory.CreateDbContext();


            return ids.ToDictionary(x => x, x => true);
        }
}```

[alexmarmon]

Thank you!