These are associated with the Fundref API
Since these Crossref options use dashes in the names in the API, we provide a crosswalk to these so that you can use underscores wherever they use dashes. Also, filters that have dots in them are undscores instead, so license.url
becomes license_url
. Additionally, using colons is not very R like, so if Crossref requires has-funder:true
, just do has-funder=TRUE
in R. Pass these options in to the cr_*()
functions in the filter parameter as a list, e.g., filter=list(has_funder=TRUE, has_full_text=TRUE)
Filters allow you to narrow queries. All filter results are lists. The following filters are supported:
| filter | possible values | description|
|:-----------|:----------------|:-----------|
| has_funder
| {logical}
| metadata which includes one or more funder entry |
| funder
| {funder_id}
| metadata which include the {funder_id}
in FundRef data |
| prefix
| {owner_prefix}
| metadata belonging to a DOI owner prefix {owner_prefix}
(e.g. 10.1016
) |
| member
| {member_id}
| metadata belonging to a CrossRef member |
| from_index_date
| {date}
| metadata indexed since (inclusive) {date}
|
| until_index_date
| {date}
| metadata indexed before (inclusive) {date}
|
| from_deposit_date
| {date}
| metadata last (re)deposited since (inclusive) {date}
|
| until_deposit_date
| {date}
| metadata last (re)deposited before (inclusive) {date}
|
| from_update_date
| {date}
| Metadata updated since (inclusive) {date}
. Currently the same as from_deposit_date
. |
| until_update_date
| {date}
| Metadata updated before (inclusive) {date}
. Currently the same as until_deposit_date
. |
| from_first_deposit_date
| {date}
| metadata first deposited since (inclusive) {date}
[^] |
| until_first_deposit_date
| {date}
| metadata first deposited before (inclusive) {date}
[^] |
| from_pub_date
| {date}
| metadata where published date is since (inclusive) {date}
|
| until_pub_date
| {date}
| metadata where published date is before (inclusive) {date}
|
| has_license
| {logical}
| metadata that includes any <license_ref>
elements. |
| license_url
| {url}
| metadata where <license_ref>
value equals {url}
|
| license_version
| {string}
| metadata where the <license_ref>
's applies_to
attribute is {string}
|
| license_delay
| {integer}
| metadata where difference between publication date and the <license_ref>
's start_date
attribute is <= {integer}
(in days)|
| has_full_text
| {logical}
| metadata that includes any full text <resource>
elements. |
| full_text_version
| {string}
| metadata where <resource>
element's content_version
attribute is {string}
. |
| full_text_type
| {mime_type}
| metadata where <resource>
element's content_type
attribute is {mime_type}
(e.g. application/pdf
). |
| public_references
| | metadata where publishers allow references to be distributed publicly. [^*] |
| has_references
| {logical}
| metadata for works that have a list of references |
| has_archive
| {logical}
| metadata which include name of archive partner |
| archive
| {string}
| metadata which where value of archive partner is {string}
|
| has_orcid
| {logical}
| metadata which includes one or more ORCIDs |
| orcid
| {orcid}
| metadata where <orcid>
element's value = {orcid}
|
| issn
| {issn}
| metadata where record has an ISSN = {issn}
. Format is xxxx-xxxx
. |
| type
| {type}
| metadata records whose type = {type}
. Type must be an ID value from the list of types returned by the /types
resource |
| directory
| {directory}
| metadata records whose article or serial are mentioned in the given {directory}
. Currently the only supported value is doaj
. |
| doi
| {doi}
| metadata describing the DOI {doi}
|
| updates
| {doi}
| metadata for records that represent editorial updates to the DOI {doi}
|
| is_update
| {logical}
| metadata for records that represent editorial updates |
| has_update_policy
| {logical}
| metadata for records that include a link to an editorial update policy |
| container_title
| | metadata for records with a publication title exactly with an exact match |
| publisher_name
| | metadata for records with an exact matching publisher name |
| category_name
| |metadata for records with an exact matching category label |
| type_name
| | metadata for records with an exactly matching type label |
| award_number
|{award_number
} |metadata for records with a matching award number. Optionally combine with award_funder
|
| award_funder
| {funder doi or id
} | metadata for records with an award with matching funder. Optionally combine with award_number
|
| from_created_date
| {date
} | metadata first deposited since (inclusive) {date}
|
| until_created_date
| {date
} | metadata first deposited before (inclusive) {date}
|
| affiliation
| | metadata for records with at least one contributor with the given affiliation |
| has_affiliation
| | metadata for records that have any affiliation information |
| article_number
| | metadata for records with a given article number |
| alternative_id
| | metadata for records with the given alternative ID, which may be a publisher_specific ID, or any other identifier a publisher may have provided |
| assertion_group
| | metadata for records with an assertion in a particular group |
| assertion
| | metadata for records with a particular named assertion |
[^*]: Not implemented yet.
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