Use this API to determine available fields, and information about their display types.

The response is set of key value pairs with the object name as the key, and an array of salesforce field details as the value. The contents of salesforce field details are formatted like this:

Parameter	Type	Description
fieldName	String	The internal name of the field used when creating or updating an object.
fieldLabel	String	The human readable field name.
objectName	String	The salesforce object type this field belongs to.
fieldValue	String	The default value of the field.
required	Boolean	True if the field is required to exist on this object.
fieldType	String	The type of field this represents (text, date, checkbox, picklist, multipicklist, number)
picklistValues	Object[]	A list of valid values for picklist and multipicklist fields.