# Feed Handler Types

> Following is the definition of the possible feed handler API handle types:

> mco_fh_ret | API function return code
> mco_fh_db_h | Database handle
> mco_fh_writer_h | Database writer handle
> mco_fh_record_h | Database record handle
> mco_fh_config_node_h | Configuration node handle
> mco_fh_module_h | Module handle

> Following are enumeration of the possible feed handler API log levels:

> MCO_FH_LOG_DEBUG | Debug
> MCO_FH_LOG_INFO | Information
> MCO_FH_LOG_WARNING | Warning
> MCO_FH_LOG_ERROR | Error

> Following are enumeration of the possible feed handler API node types:

> MCO_FH_CFG_NODE_NULL | Null object (returned if non-existent object was requested)
> MCO_FH_CFG_NODE_SCALAR | Scalar object (integer, string, boolean, floating-point)
> MCO_FH_CFG_NODE_OBJECT | Object that contains children nodes
> MCO_FH_CFG_NODE_VECTOR | vector