Note that there is no correspondence between the "W" keys and the "M"
keys -- they are unrelated, so you can't change a "W" to "M" and get
anything sensible.
Also, it's possible that the information you need is in the
documentation for the RESTFul API, here:
https://openlibrary.org/dev/docs/restful_api
kc
On 12/30/14 6:52 PM, Chris wrote:
Thanks Karen.. That does help, since I’m completely new here.
Basically, I guess the question is if given only a ‘W’ Works key how do
I get to the Edition or ‘M’ key. It looks like all the works have a
unique ‘W’ key, so there should be a way.
As a little more of background:
I extracted a dump, which gives me a lot OLID’s that end in ‘W’ that I
can use on the web.
For example:
https://openlibrary.org/works/OL15346679W.json
works and gives me this:
{"title": "Adventures of Tom Sawyer", "created": {"type": "/type/datetime", "value": "2010-08-20T09:50:50.944421"}, "last_modified": {"type": "/type/datetime", "value": "2012-07-07T03:04:45.302947"},
"latest_revision": 2, "key": "/works/OL15346679W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL18319A"}}], "type": {"key": "/type/work"}, "revision": 2}
But the info I need is in an edition so, I need a key that ends in ‘M’ so I’m
having trouble finding books. No results are returned with OLIDs that end in
‘W’.
Example this works:
https://openlibrary.org/api/books?bibkeys=OLID:OL15346679M
var _OLBookInfo = {"OLID:OL15346679M": {"bib_key": "OLID:OL15346679M", "preview": "noview", "preview_url":
"https://openlibrary.org/books/OL15346679M/Raghuvam\u015ba_cantos_14_15.";, "info_url":
"https://openlibrary.org/books/OL15346679M/Raghuvam\u015ba_cantos_14_15."}};
but this yields nothing:
https://openlibrary.org/api/books?bibkeys=OLID:OL15346679W
var _OLBookInfo = {};
I’m puzzled. t
Thanks.
Chris
On Dec 30, 2014, at 6:44 PM, Karen Coyle <[email protected]
<mailto:[email protected]>> wrote:
I can give you some info, but others with more experience with the API
will need to give you more.
There are two types of bibliographic entities in OL: Works and
Editions. The OLIDs that end in "W" are for works; the OLIDs that end
in "M" are for editions. (Yes, there's a reason why M=edition, but
it's a long story.)
A work is a general record linking to all of the books of the same
content, e.g. all of the versions of Tom Sawyer. Individual books are
editions. Editions can be retrieved using the API:
https://openlibrary.org/api/books?bibkeys=OLID:OL24367990M
They can also be retrieved with the OLID, the ISBN or the OCLC number.
I don't know how you format a query to retrieve all of the editions
starting with a Work OLID -- can somewhere here answer that question?
Thanks,
kc
On 12/30/14 5:41 PM, Chris wrote:
Hi all,
I’m new to OL. I’m excited about it’s vast potential.
I had a quick question.
I recently downloaded a dump and extracted it to a sql database. When I
query this database I retrieve a OL id for a given book, but when I turn
around and use this ID against open library directly with an API call, I
get no results.
For example, this row extracted from the Dump
Adventures of Tom SawyerMark TwainOL15346679W
returns no results
https://openlibrary.org/api/books?bibkeys=OLID:OL15346679W
Other entries I’ve noticed that do work correctly end with ‘M’ as the
last character of the OLID instead of ‘W’
I’m hoping the OL ids have not all changed. It took a good while to
pull down the 100gig dump and build a database that I could query and
consume.
I’m hoping someone can lend some light on this problem for me.
Thanks
-Chris Flynn
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Karen Coyle
[email protected] http://kcoyle.net
m: 1-510-435-8234
skype: kcoylenet/+1-510-984-3600
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--
Karen Coyle
[email protected] http://kcoyle.net
m: 1-510-435-8234
skype: kcoylenet/+1-510-984-3600
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