[[dynamic-mapping]] == Dynamic mapping One of the most important features of {es} is that it tries to get out of your way and let you start exploring your data as quickly as possible. To index a document, you don't have to first create an index, define a mapping type, and define your fields -- you can just index a document and the index, type, and fields will display automatically: [source,console] -------------------------------------------------- PUT data/_doc/1 <1> { "count": 5 } -------------------------------------------------- <1> Creates the `data` index, the `_doc` mapping type, and a field called `count` with data type `long`. The automatic detection and addition of new fields is called _dynamic mapping_. The dynamic mapping rules can be customized to suit your purposes with: <>:: The rules governing dynamic field detection. <>:: Custom rules to configure the mapping for dynamically added fields. TIP: <> allow you to configure the default mappings, settings and aliases for new indices, whether created automatically or explicitly. include::dynamic/field-mapping.asciidoc[] include::dynamic/templates.asciidoc[]