Get documents from the index

You can retrieve indexed objects using the IClient interface Get method. This method requires a type (as a type parameter) and an ID and returns the indexed object of that type or null if it does not find a document with that ID and type.

One of the Get method overloads also accept a list of IDs. Moreover, an extension method with the same name accepts a list of IDs as params. These methods return an IEnumerable of GetResult, which contains information about whether it finds the document and (if found) the indexed object.

The IClient interface GetWithMeta method gets indexed objects and returns the indexed object wrapped in a GetResult object. A typical use case retrieves the object and its version number, which you can use in optimistic concurrency checks (and update objects only if they have not changed because they are being fetched).

You might be unable to de-serialize types without parameter-less constructors or outer dependencies. In many cases, that is a sign that the types are not suitable to use as search results. In these cases, it is probably better to only fetch their IDs and then get them from the database or other backing store or project their values using the select method. However, by adding to theClient class conventions, you can customize how people create instances of a specific class.