support default values in c# methods

[bzbetty]

believe this makes default values in mutaitons work

eg

        [GraphQLMutation]

        public int DefaultValueTest(int valueWithDefault = 8)
        {
            return valueWithDefault;
        }

[bzbetty]

Think this is failing due to another merge. Gets the same Reuse slot error (which seem familiar to me, something about trying to add an Expression type or potentially Task<> to a graphql type.

eg

    public System.Threading.Tasks.Task<int?> FirstUserId => System.Threading.Tasks.Task.FromResult(Users.FirstOrDefault()?.Id);

[lukemurray]

Can we add a test/check that the schema/introspection is generating the default values too?

[bzbetty]

added in tests/code for sdl/introspection default values

[bzbetty]

added a couple more SDL default values checks which requires some form of serialisation, used a json serialiser but it's not quite right, so need another method.

eg
schema.Query().AddField("user", new { user = new UserInputObject() { Name = "Steve" } }, (ctx, param) => ctx.Users.FirstOrDefault(), "Return a user by ID");
should become

Assert.Contains("user(user: userInput = { name:\"Steve\"}): User", schema.ToGraphQLSchemaString());
but is currently

Assert.Contains("user(user: userInput = { \"name\":\"Steve\"}): User", schema.ToGraphQLSchemaString());
which isn't valid SDL.

seems to work for enums, integers, booleans, and empty arrays though.

Are you aware of a serializer more suitable?

[lukemurray]

My most hated test too :P Need to look at changing it some how..

Thanks though