How to update data through Api in Xamarin - xamarin

Question

I do the update command through the API. Everything seems fine. However, the data is not up to date. When I debug there is no error.
public async Task UpdateViewRatingStore(bool value)
{
var url = baseUrl + userget;
HttpClient client = new HttpClient();
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", mytokenlogin);
string jsonStr = await client.GetStringAsync(url);
var res = JsonConvert.DeserializeObject<Customer>(jsonStr);
var checkunredrating = res.RatingStores;
if (checkunredrating != null)
{
foreach (var r in checkunredrating)
{
r.ID = r.ID;
r.StoreID = r.StoreID;
r.RatingStores = r.RatingStores;
r.CommentStore = r.CommentStore;
r.UserRating = r.UserRating;
r.CreateDay = r.CreateDay;
r.Display = r.Display;
r.ViewStorer = value;
var urlput = baseUrlStoreRating + r.ID;
var stringContent = new StringContent(JsonConvert.SerializeObject(res.RatingStores), Encoding.UTF8, "application/json");
await client.PutAsync(urlput, stringContent);
}
}
}
However when I check in the database it is still not updated. I tested it manually on swagger and Posman was fine. Where did I go wrong? Ask for help. Thank you

Answer 1

you are trying to update a single object, but passing the entire collection every time
instead, try this
foreach (var r in checkunredrating)
{
// you only need to update the changed values
r.ViewStorer = value;
var urlput = baseUrlStoreRating + r.ID;
// only send the current object you are updating
var stringContent = new StringContent(JsonConvert.SerializeObject(r), Encoding.UTF8, "application/json");
await client.PutAsync(urlput, stringContent);
}