Ability to search by a specific field

[jure]

As discussed in lagotto/alm-report#39, it would be great if one could search the CrossRef API by just a single field in its index. For example, I'd like to get all papers with authors with the last name Heisenberg, by doing something like you can do with the PLOS API:

http://api.plos.org/search?q=author:%22Heisenberg%22

or to get a fuller JSON:

http://api.plos.org/search?facet=false&fl=author,id,pmid,publication_date,received_date,accepted_date,title,cross_published_journal_name,author_display,editor_display,article_type,affiliate,subject,financial_disclosure&fq=!article_type_facet:%22Issue%20Image%22&hl=false&q=author:Heisenberg&rows=25&wt=json

Fields that would be interesting in this regard are:

• author
• title
• journal
• abstract
• subject

Ideally, I could even say something like give me all papers where author is Heisenberg and title has "cell" in it. With PLOS's API for example, I'd do this:
http://api.plos.org/search?q=(author:Heisenberg)%20AND%20title:cell

Is there a way to be able to get this result with CrossRef's API? I imagine I'd first have to query all fields:
http://api.crossref.org/works?query=Heisenberg&filter=type:journal-article and then paginate & process the 8000+ results separately, to filter out articles which have "cell" in title?

[sckott]

+1 for this feature

[JanneSeppanen]

Do you know if this is supported yet, and if so how? I see there is a field "author":[{"family":"Heisenberg","given":"Werner"} in the crossref api response, any way to filter by it?

[kjw]

Not yet supported, but 'coming soon'. Will update this issue when available.

[kjw]

Now available as field queries on /works:

https://github.com/CrossRef/rest-api-doc/blob/master/rest_api.md#field-queries

(Except subject and abstract. But that's a whole other kettle of fish.)

[jure]

Fantastic! Great work @kjw!

[kjw]

Thanks @jure - sorry it took so long!

[JanneSeppanen]

Many thanks from me too - this is extremely useful for us too!

Another thing (probably not your responsibility at all but maybe you
can forward to someone):

CrossRef database has publications from the distant future, for
example these ones from the year 2112:
http://search.crossref.org/?q=%22European+Journal+of+Clinical+Nutrition%22&sort=year

Maybe you have secretly invented a time-machine or these are just
really early access papers :) , but in case it is an error, perhaps
CrossRef wants to look into it.

Kind regards,
Janne

Quoting Karl Jonathan Ward notifications@github.com:

Thanks @jure - sorry it took so long!

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[kjw]

@JanneSeppanen I'm glad to hear the API is useful to you. As for publication dates that are in the future - in this specific case we will get in contact with the publisher and encourage them to deposit corrected metadata. We are also starting a project to track common errors and improve our reporting, which I hope will lead to fewer obvious metadata errors in the future.