private async Task GetRecipes(IEnumerable <string> urls)
{
var parser = new UnicaParser();
var allRecipesUrls = new List <CrawledRecipe>();
int i = 0;
foreach (var url in urls)
{
if (i == 200)
{
i = 0;
var json = JsonConvert.SerializeObject(allRecipesUrls);
File.WriteAllText(@"E:\UnicaRecipes\" + Guid.NewGuid().ToString() + ".json", json);
allRecipesUrls.Clear();
}
else
{
i++;
}
var recipeDetailsPage = await TryGetStringAsync(url);
if (string.IsNullOrEmpty(recipeDetailsPage))
{
continue;
}
var recipesUrls = parser.GetRecipe(recipeDetailsPage, url);
if (recipesUrls != null)
{
allRecipesUrls.Add(recipesUrls);
}
}
}
public async Task CrawlRecipes()
{
var parser = new UnicaParser();
var httpClient = new HttpClient();
var html = await httpClient.GetStringAsync("https://retete.unica.ro/");
var categoriesUrls = parser.GetCategoriesUrls(html);
var allRecipesUrls = new List <string>();
foreach (var category in categoriesUrls)
{
var categoryHtml = await TryGetStringAsync(category);
if (string.IsNullOrEmpty(categoryHtml))
{
continue;
}
var allpages = parser.GetAllPagesUrls(categoryHtml, category);
var recipesUrls = await GetPagesRecipesUrls(allpages);
allRecipesUrls.AddRange(recipesUrls);
}
await GetRecipes(allRecipesUrls.Distinct());
}
private async Task <IEnumerable <string> > GetPagesRecipesUrls(IEnumerable <string> urls)
{
var parser = new UnicaParser();
var allRecipesUrls = new List <string>();
foreach (var url in urls)
{
var recipeDetailsPage = await TryGetStringAsync(url);
if (string.IsNullOrEmpty(recipeDetailsPage))
{
continue;
}
var recipesUrls = parser.GetRecipeUrls(recipeDetailsPage);
allRecipesUrls.AddRange(recipesUrls);
}
return(allRecipesUrls);
}
