A query string is data that's sent as part of the URL that is not suitable for use as part of the hierarchical structure of the URL (where / separates between different levels of the hierarchy). Typically, the query string is the part that comes after the question mark in the URL and uses the & sign to separate between the different values. For example, the GiveNTake application allows the user to search for products in a specific location, and to constraint the search only to products that have an image attached to them. This API is exposed through a URL in the following format:
/api/products/searchcategory/category/subcategory?location=XXX&imageonly=true
ASP.NET Core automatically matches any value in the query string to a ...
