Linq to get a list of models per Make into DTO - entity-framework

Question

I have a DTO class like this
public string Make { get; set; };
public List<string> Models { get; set; }
Then there is a table which contains a list of vehicles, with make and model columns.
My API endpoint accepts a list of strings (the Makes)
I need to return a list of the DTO class with each make and the list of models.
public async Task<ActionResult<List<MakeModelDTO>>> GetModelsByMakes([FromQuery] List<string> make_list)
{
return await _context.Vehicles.Where(x => x.Make.????).Select(x => x.Model).Distinct().ToListAsync();
}
I don't even want to show the code I've tried, because all versions turned out to be a mess.
I know this is suppose to be a very simple task, I just can't figure it out.

Answer 1

Firstly, In condition you can do this
Where(x => make_list.Contains(x.Make)
or
Where(x => make_list.Any(m => m == x.Make)
Secondly, the method is returning List<MakeModelDTO>, So you should adjust select result like below
.GroupBy(p => p.Make).Select(g =>
new MakeModelDTO { Make = g.Key, Models = g.Select(p => p.Model).ToList() }).ToListAsync();
FullCode
public async Task<ActionResult<List<MakeModelDTO>>> GetModelsByMakes([FromQuery] List<string> make_list)
{
return await _context.Vehicles.Where(x => make_list.Contains(x.Make)).GroupBy(p => p.Make).Select(g =>
new MakeModelDTO { Make = g.Key, Models = g.Select(p => p.Model).ToList() }).ToListAsync();
}

Answer 2

As #Fabio suggested you can filter the make like that. Adding to it convert to your DTO you need to group by that also.
You could try something like this
public async Task<ActionResult<List<MakeModelDTO>>> GetModelsByMakes([FromQuery] List<string> make_list)
{
var resultAsDto = await _context.Vehicles
.Where(vehicle => makeList.Contains(vehicle.Make))
.GroupBy(v=>v.Make)
.Select(g=> new YourDto
{
Make= g.Key -- As it grouped by make
Models = g.Select(v=>v.Model)
}).ToListAsync()
return resultAsDto
}