使用 http get 请求 ASP.core API 传递多个参数

Question

Dear all i have the following controller,

[Route("[action]/{phone}/{password}", Name="PhoneLogin")]
[HttpGet]
public async Task<ActionResult<User>> PhoneLogin(string phone, string password)
{
    var response = await _repository.PhoneLogin(phone, password);
    if (response == null) { return NotFound(); }
    return Ok(_mapper.Map<UserReadDto>(response));
}

        public async Task<User> PhoneLogin(string phone, string pass)
    {
        StringCipher s = new StringCipher();
        using (SqlConnection sql = new SqlConnection(_connectionString))
        {
            using (SqlCommand cmd = new SqlCommand("spPhoneLogin", sql))
            {
                cmd.CommandType = System.Data.CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@phone", phone));
                cmd.Parameters.Add(new SqlParameter("@password", s.EncryptString(pass)));

                User response = null;
                await sql.OpenAsync();

                using (var reader = await cmd.ExecuteReaderAsync())
                {
                    while (await reader.ReadAsync())
                    {
                        response = MapToValue(reader);
                    }
                }

                return response;
            }
        }
    }

i'm new to API's. i'm trying to send two parameters with the request. and how is the URI constructed in that case.

Answer 1

Based on your routing attribute [Route("[action]/{phone}/{password}", Name="PhoneLogin")] , the method can be reached under /PhoneLogin/anyString/anyOtherString where anyString would be bound to phone and anyOtherString to password .

If you have an additional route attribute on the controller class, such as [Route("[controller]")] , the name of your controller also needs to be added which results in /MyControllerName/PhoneLogin/anyString/anyOtherString .

Please take a closer look at the documentation on model binding and routing fundamentals . The default model binding follows a predefined order, which (based on the documentation) is

1. Form fields
2. The request body (For controllers that have the [ApiController] attribute.)
3. Route data
4. Query string parameters
5. Uploaded files

So since no form fields or request body is provided (which is the most common case for a get-request), the route data is used to bind the two parameters.