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Fever API

It's a copy of https://feedafever.com/api in case it will be shut down.

Authentication

Without further ado, the Fever API endpoint URL looks like:

http://yourdomain.com/fever/?api

All requests must be authenticated with a POSTed api_key. The value of api_key should be the md5 checksum of the Fever accounts email address and password concatenated with a colon. An example of a valid value for api_key using PHP’s native md5() function:

$email  = 'you@yourdomain.com';
$pass   = 'b3stp4s4wd3v4';
$api_key = md5($email.':'.$pass);

A user may specify that https be used to connect to their Fever installation for additional security but you should not assume that all Fever installations support https.

The default response is a JSON object containing two members:

  • api_version contains the version of the API responding (positive integer)
  • auth whether the request was successfully authenticated (boolean integer)

The API can also return XML by passing xml as the optional value of the api argument like so:

http://yourdomain.com/fever/?api=xml

The top level XML element is named response.

The response to each successfully authenticated request will have auth set to 1 and include at least one additional member:

  • last_refreshed_on_time contains the time of the most recently refreshed (not updated) feed (Unix timestamp/integer)

Read

When reading from the Fever API you add arguments to the query string of the API endpoint URL. If you attempt to POST these arguments (and their optional values) Fever will not recognize the request.

Groups

http://yourdomain.com/fever/?api&groups

A request with the groups argument will return two additional members:

  • groups contains an array of group objects
  • feeds_groups contains an array of feeds_group objects

A group object has the following members:

  • id (positive integer)
  • title (utf-8 string)

The feeds_group object is documented under “Feeds/Groups Relationships.”

The “Kindling” super group is not included in this response and is composed of all feeds with an is_spark equal to 0. The “Sparks” super group is not included in this response and is composed of all feeds with an is_spark equal to 1.

Feeds

http://yourdomain.com/fever/?api&feeds

A request with the feeds argument will return two additional members:

  • feeds contains an array of group objects
  • feeds_groups contains an array of feeds_group objects

A feed object has the following members:

  • id (positive integer)
  • favicon_id (positive integer)
  • title (utf-8 string)
  • url (utf-8 string)
  • site_url (utf-8 string)
  • is_spark (boolean integer)
  • last_updated_on_time (Unix timestamp/integer)

The feeds_group object is documented under “Feeds/Groups Relationships.”

The “All Items” super feed is not included in this response and is composed of all items from all feeds that belong to a given group. For the “Kindling” super group and all user created groups the items should be limited to feeds with an is_spark equal to 0. For the “Sparks” super group the items should be limited to feeds with an is_spark equal to 1.

Feeds/Groups Relationships

A request with either the groups or feeds arguments will return an additional member:

A feeds_group object has the following members:

  • group_id (positive integer)
  • feed_ids (string/comma-separated list of positive integers)

Favicons

http://yourdomain.com/fever/?api&favicons

A request with the favicons argument will return one additional member:

  • favicons contains an array of favicon objects

A favicon object has the following members:

  • id (positive integer)
  • data (base64 encoded image data; prefixed by image type)

An example data value:

image/gif;base64,R0lGODlhAQABAIAAAObm5gAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==

The data member of a favicon object can be used with the data: protocol to embed an image in CSS or HTML. A PHP/HTML example:

echo '<img src="data:'.$favicon['data'].'">';

Items

http://yourdomain.com/fever/?api&items

A request with the items argument will return two additional members:

  • items contains an array of item objects
  • total_items contains the total number of items stored in the database (added in API version 2)

An item object has the following members:

  • id (positive integer)
  • feed_id (positive integer)
  • title (utf-8 string)
  • author (utf-8 string)
  • html (utf-8 string)
  • url (utf-8 string)
  • is_saved (boolean integer)
  • is_read (boolean integer)
  • created_on_time (Unix timestamp/integer)

Most servers won’t have enough memory allocated to PHP to dump all items at once. Three optional arguments control determine the items included in the response.

  • Use the since_id argument with the highest id of locally cached items to request 50 additional items. Repeat until the items array in the response is empty.

  • Use the max_id argument with the lowest id of locally cached items (or 0 initially) to request 50 previous items. Repeat until the items array in the response is empty. (added in API version 2)

  • Use the with_ids argument with a comma-separated list of item ids to request (a maximum of 50) specific items. (added in API version 2)

Hot Links

http://yourdomain.com/fever/?api&links

A request with the links argument will return one additional member:

  • links contains an array of link objects

A link object has the following members:

  • id (positive integer)
  • feed_id (positive integer) only use when is_item equals 1
  • item_id (positive integer) only use when is_item equals 1
  • temperature (positive float)
  • is_item (boolean integer)
  • is_local (boolean integer) used to determine if the source feed and favicon should be displayed
  • is_saved (boolean integer) only use when is_item equals 1
  • title (utf-8 string)
  • url (utf-8 string)
  • item_ids (string/comma-separated list of positive integers)

When requesting hot links you can control the range and offset by specifying a length of days for each as well as a page to fetch additional hot links. A request with just the links argument is equivalent to:

http://yourdomain.com/fever/?api&links&offset=0&range=7&page=1

Or the first page (page=1) of Hot links for the past week (range=7) starting now (offset=0).

Link Caveats

Fever calculates Hot link temperatures in real-time. The API assumes you have an up-to-date local cache of items, feeds and favicons with which to construct a meaningful Hot view. Because they are ephemeral Hot links should not be cached in the same relational manner as items, feeds, groups and favicons.

Because Fever saves items and not individual links you can only "save" a Hot link when is_item equals 1.

Sync

The unread_item_ids and saved_item_ids arguments can be used to keep your local cache synced with the remote Fever installation.

http://yourdomain.com/fever/?api&unread_item_ids

A request with the unread_item_ids argument will return one additional member:

  • unread_item_ids (string/comma-separated list of positive integers)

http://yourdomain.com/fever/?api&saved_item_ids

A request with the saved_item_ids argument will return one additional member:

  • saved_item_ids (string/comma-separated list of positive integers)

One of these members will be returned as appropriate when marking an item as read, unread, saved, or unsaved and when marking a feed or group as read.

Because groups and feeds will be limited in number compared to items, they should be synced by comparing an array of locally cached feed or group ids to an array of feed or group ids returned by their respective API request.

Write

The public beta of the API does not provide a way to add, edit or delete feeds or groups but you can mark items, feeds and groups as read and save or unsave items. You can also unread recently read items. When writing to the Fever API you add arguments to the POST data you submit to the API endpoint URL.

Adding unread_recently_read=1 to your POST data will mark recently read items as unread.

You can update an individual item by adding the following three arguments to your POST data:

  • mark=item
  • as=? where ? is replaced with read, saved or unsaved
  • id=? where ? is replaced with the id of the item to modify

Marking a feed or group as read is similar but requires one additional argument to prevent marking new, unreceived items as read:

  • mark=? where ? is replaced with feed or group
  • as=read
  • id=? where ? is replaced with the id of the feed or group to modify
  • before=? where ? is replaced with the Unix timestamp of the the local client’s most recent items API request

You can mark the “Kindling” super group (and the “Sparks” super group) as read by adding the following four arguments to your POST data:

  • mark=group
  • as=read
  • id=0
  • before=? where ? is replaced with the Unix timestamp of the the local client’s last items API request

Similarly you can mark just the “Sparks” super group as read by adding the following four arguments to your POST data:

  • mark=group
  • as=read
  • id=-1
  • before=? where ? is replaced with the Unix timestamp of the the local client’s last items API request