When the line getJSON is executed and there is routing to for example: https://localhost:44338/ArticleApi/GetNextArticles?id=12&quantity=2&filterName=Odziez

I get error:

Failed to load resource: the server responded with a status of 404 ()

Cannot find this page on localhost

GetNextArticles method in my ArticleApiController:

 [HttpGet("{id}/{count}/{filterName}")]
    public IEnumerable<Article> GetNextArticles(int id, int count, string filterName)
    {
        return _articleRepository.GetNextArticles(id, count, filterName);
    }

in my view (.cshtml file):

 $.getJSON('@Url.Action("GetNextArticles", "ArticleApi")'   "?id="   last   "&quantity="   quantity   "&filterName="   filterCategory, function(data, status) {
     
                    for(var index in data) {etc...}}

GetNextArticles method:

public IEnumerable<Article> GetNextArticles(int id, int count, string filterName)
    {
        List<Article> articles = new List<Article>();

        var categoryId = _context.Categories.Where(c => c.CategoryName == filterName).Select(c => c.CategoryId).FirstOrDefault();

        for (int i = 0; i < count; i  )
        {


            var foundArticles = _context.Articles.Where(a => a.CategoryId == categoryId && a.ArticleId == id   i   1).ToList();

            if (foundArticles.Count() == 0)
            {
                return articles;
            }

            var article = foundArticles[0];

            if (article != null)
            {

                article.Category = _context.Categories.Find(article.CategoryId);

                articles.Add(article);
            }
            else
            {
                var nextArticles = _context.Articles.Where(a => a.CategoryId == categoryId && article.ArticleId <= id   i   100).ToList();

                if (nextArticles.Count != 0)
                {
                    id = nextArticles.Min(a => a.ArticleId);

                    articles.Add(nextArticles.Where(a => a.ArticleId == id).First());
                }
                else
                {
                    break;
                }
            }
        }

        return articles;
    }

CodePudding user response：

If you use [HttpGet("{id}/{count}/{filterName}")] in your Api, The Url passed into this api must be https://localhost:44338/ArticleApi/GetNextArticles/Id/count/filterName.

So, If you don't want to change the $.getJSON(..){...} in the View, You can change the api like:

    [HttpGet]
    public IEnumerable<Article> GetNextArticles([FromQuery]int id, int count, string filterName)
    {
        return _articleRepository.GetNextArticles(id, count, filterName);
    }

You can see the Api works fine and it can be loaded in Swagger as well

CodePudding user response：

According to the error, you could validate the names of the parameters that you are sending. Reviewing the code I realize that one of them is sent with the name "quantity" and in the controller you call it "count"