I'm trying to do a get request, here's my razor page class:
public class IndexModel : PageModel
{
public IEnumerable<ApiAnime> ApiData { get; set; }
public async Task<IActionResult> OnGet()
{
var request = new HttpRequestMessage(HttpMethod.Get,
"https://api.aniapi.com/v1/anime");
var client = _clientFactory.CreateClient();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
var response = await client.SendAsync(request);
if (response.IsSuccessStatusCode)
{
var responseStream = await response.Content.ReadAsStreamAsync();
ApiData = await JsonSerializer.DeserializeAsync<IEnumerable<ApiAnime>>(responseStream);
}
else
{
ApiData = new List<ApiAnime>();
}
return Page();
}
}
This razor page class seems to work with simpler or more straight forward json values. But with this api "https://api.aniapi.com/v1/anime" it seems to not work. Now here's my json class:
public class ApiAnime
{
public class Rootobject
{
public int status_code { get; set; }
public string message { get; set; }
public Data data { get; set; }
public string version { get; set; }
}
public class Data
{
public int current_page { get; set; }
public int count { get; set; }
public Document[] documents { get; set; }
public int last_page { get; set; }
}
public class Document
{
public int anilist_id { get; set; }
public int mal_id { get; set; }
public int format { get; set; }
public int status { get; set; }
public Titles titles { get; set; }
public Descriptions descriptions { get; set; }
public DateTime start_date { get; set; }
public DateTime end_date { get; set; }
public int season_period { get; set; }
public int season_year { get; set; }
public int episodes_count { get; set; }
public int episode_duration { get; set; }
public string trailer_url { get; set; }
public string cover_image { get; set; }
public string cover_color { get; set; }
public string banner_image { get; set; }
public string[] genres { get; set; }
public int score { get; set; }
public int id { get; set; }
public int prequel { get; set; }
public int sequel { get; set; }
}
}
The error I get is
The JSON value could not be converted to System.Collections.Generic.IEnumerable`1[AnimDbNet.ApiModel.ApiAnime].
ApiData = await JsonSerializer.DeserializeAsync<IEnumerable<ApiAnime>>(responseStream);
I'm using .NET Core 5. Does anyone know how to fix this error?
CodePudding user response:
You shouln't need IEnumerable, this should work by using Rootobject.
JsonSerializer.DeserializeAsync<Rootobject>(responseStream);
The json sent by this API starts with :
{
"status_code": 200,
"message": "Page 1 contains 100 anime. Last page number is 153 for a total of 15280 anime",
"data": {
...
Which is the start of your root object.
CodePudding user response:
The error is from trying to parse the return value of the API which is not a JSON array but a JSON Object, not an IEnumerable.
ApiData = await JsonSerializer.DeserializeAsync<IEnumerable<ApiAnime>>(responseStream);
The solution is to parse directly to an ApiAnime.Rootobject
and then use the apiData.Data
to access the data on your Page.
Your code would look like this.
public class IndexModel : PageModel
{
public ApiAnime.Rootobject ApiData { get; set; }
public async Task<IActionResult> OnGet()
{
var request = new HttpRequestMessage(HttpMethod.Get,
"https://api.aniapi.com/v1/anime");
var client = _clientFactory.CreateClient();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
var response = await client.SendAsync(request);
if (response.IsSuccessStatusCode)
{
var responseStream = await response.Content.ReadAsStreamAsync();
ApiData = await JsonSerializer.DeserializeAsync<ApiAnime.Rootobject>(responseStream);
}
else
{
ApiData = new ApiAnime.Rootobject();
}
return Page();
}
}
CodePudding user response:
You don't need IEnumerable. Try this code. It was tested in Visual Studio and works properly.
public class IndexModel : PageModel
{
public ApiData ApiData { get; set; }
public async Task<IActionResult> OnGet()
{
var apiDataRoot= await GetApiData(_httpClientFactory);
if (apidatRoot.status_code=200) ApiData=apiDataRoot.ApiData;
else ... return error;
return Page();
}
}
GetApiData
public async Task<ApiDataRoot> GetApiData(IHttpClientFactory httpClientFactory)
{
var request = new HttpRequestMessage(HttpMethod.Get,
"https://api.aniapi.com/v1/anime");
var client = httpClientFactory.CreateClient();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/json"));
var response = await client.SendAsync(request);
ApiDataRoot apiDataRoot = null;
if (response.IsSuccessStatusCode)
{
var responseString = await response.Content.ReadAsStringAsync();
apiDataRoot = System.Text.Json.JsonSerializer.Deserialize<ApiDataRoot>(responseString);
}
else
{
apiDataRoot = new ApiDataRoot {status_code=400, message="error"};
}
return apiDataRoot;
}
classes
public class ApiData
{
public int current_page { get; set; }
public int count { get; set; }
public List<Document> documents { get; set; }
public int last_page { get; set; }
}
public class ApiDataRoot
{
public int status_code { get; set; }
public string message { get; set; }
public ApiData data { get; set; }
public string version { get; set; }
}
public class Titles
{
public string en { get; set; }
public string jp { get; set; }
public string it { get; set; }
}
public class Descriptions
{
public string en { get; set; }
public string it { get; set; }
}
public class Document
{
public int anilist_id { get; set; }
public int mal_id { get; set; }
public int format { get; set; }
public int status { get; set; }
public Titles titles { get; set; }
public Descriptions descriptions { get; set; }
public DateTime start_date { get; set; }
public DateTime end_date { get; set; }
public int season_period { get; set; }
public int season_year { get; set; }
public int episodes_count { get; set; }
public int episode_duration { get; set; }
public string trailer_url { get; set; }
public string cover_image { get; set; }
public string cover_color { get; set; }
public string banner_image { get; set; }
public List<string> genres { get; set; }
public int score { get; set; }
public int id { get; set; }
public int? prequel { get; set; }
public int? sequel { get; set; }
}