CODE EXAMPLE FOR CSHARP

c# iformfile to string

public static List<string> ReadAsList(this IFormFile file)
{
    var result = new StringBuilder();
    using (var reader = new StreamReader(file.OpenReadStream()))
    {
        while (reader.Peek() >= 0)
            result.AppendLine(reader.ReadLine()); 
    }
    return result;
}