Core: Partially Update on Controller

[thangchung]

        [HttpPatch("{id:int}")]
        public IActionResult PartiallyUpdate(int id, [FromBody] JsonPatchDocument<Thing> patchDoc)
        {
            if (patchDoc == null)
            {
                return BadRequest();
            }

            Thing existingEntity = _thingsRepository.GetSingle(id);

            if (existingEntity == null)
            {
                return NotFound();
            }

            Thing thing = existingEntity;
            patchDoc.ApplyTo(thing, ModelState);

            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            Thing updatedThing = _thingsRepository.Update(id, thing);

            return Ok(updatedThing);
        }

https://github.com/damienbod/AngularWebpackVisualStudio/blob/master/src/AngularWebpackVisualStudio/Controllers/ThingsController.cs#L44