FB Graph API: Way to get list of fields for an object through API - facebook

Question

Is there a way how to get the list of fields for a specific facebook object programmatically?
I know there's documentation for that, but I need some introspection - we're building a tool that would enable the user to select from existing fields.
I mean something like: give me a list of fields for user, response: {"id", "name", "first_name", ...}
Or some way how to get all the fields for one object and derive it from that?

Answer 1

Facebook enables you to pass metadata=1 parameter. For example
cocacola?metadata=1
gives you all available connections and fields for the page:
"metadata": {
"connections": {
"admins": "https://graph.facebook.com/cocacola/admins",
"admin_settings": "https://graph.facebook.com/cocacola/admin_settings"
},
"fields": [
{
"name": "id",
"description": "The Page's ID. No access token or user `access_token`. `string`."
},
{
"name": "name",
"description": "The Page's name. No access token or user `access_token`. `string`."
},
{
"name": "link",
"description": "Link to the page on Facebook. No access token or user `access_token`. `string` containing a valid URL."
},
{
"name": "category_lists",
"description": "The Page's categories. No access token or user `access_token`. `string`."
},
{
"name": "is_published",
"description": "Indicates whether the page is published and visible to non-admins. No access token or user `access_token`. `boolean`."
}
Looks like it's official, found it in the getting started manual