Aspnetcore.docs: 400 "The input was not valid." on POST request

[royshouvik]

Payload

{
  "name":"walk dog",
  "isComplete":true
}

TodoController.cs

...

        [HttpPost]
        public async Task<ActionResult<TodoItem>> Store(TodoItem todoItem)
        {
            _context.TodoItems.Add(todoItem);
            await _context.SaveChangesAsync();

            return CreatedAtAction("GetTodoItem", new { id = todoItem.Id }, todoItem);
        }
...

---

Document Details

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• ID: 583ae3e7-5915-f22b-e54c-6c100cf2a7da
• Version Independent ID: 95f2549e-29f9-e31a-b4d0-432b971643ff
• Content: Tutorial: Create a web API with ASP.NET Core MVC
• Content Source: aspnetcore/tutorials/first-web-api.md
• Product: aspnet-core
• GitHub Login: @Rick-Anderson
• Microsoft Alias: riande

[Rick-Anderson]

Can you debug to find out what you did wrong?

[Rick-Anderson]

If you get a 405 Method Not Allowed error, it's probably the result of not compiling the project after adding the after adding the PostTodoItem method.

[royshouvik]

Found the issue. It's important to have Content-Type header set to application/json in Postman.