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A general purpose client to work with any ‘OAI-PMH’ service.
The ‘OAI-PMH’ protocol is described at http://www.openarchives.org/OAI/openarchivesprotocol.html.
The main functions follow the OAI-PMH verbs:
GetRecordIdentifyListIdentifiersListMetadataFormatsListRecordsListSetsInstall from CRAN
install.packages("oai")
Or install the development version from GitHub
devtools::install_github("ropensci/oai")
Load oai
library("oai")
id("http://oai.datacite.org/oai")
#> repositoryName baseURL protocolVersion
#> 1 DataCite MDS https://oai.datacite.org/oai 2.0
#> adminEmail earliestDatestamp deletedRecord
#> 1 support@datacite.org 2011-01-01T00:00:00Z persistent
#> granularity compression compression.1
#> 1 YYYY-MM-DDThh:mm:ssZ gzip deflate
#> description
#> 1 oaioai.datacite.org:oai:oai.datacite.org:12425
list_identifiers(from = '2018-05-01T', until = '2018-09-01T')
#> # A tibble: 2,904 x 5
#> identifier datestamp setSpec setSpec.1 setSpec.2
#> <chr> <chr> <chr> <chr> <chr>
#> 1 cbe4cdda-2045-41… 2018-08-30T… installation:842… dataset_type… country:…
#> 2 3fb7ddd8-07c0-49… 2018-08-28T… installation:842… dataset_type… country:…
#> 3 34585f24-1ffe-47… 2018-08-28T… installation:842… dataset_type… country:…
#> 4 8ac24ec8-1e7b-40… 2018-08-28T… installation:842… dataset_type… country:…
#> 5 e381b970-9b62-46… 2018-08-28T… installation:842… dataset_type… country:…
#> 6 4496b1b1-1ea9-4e… 2018-08-28T… installation:842… dataset_type… country:…
#> 7 fc5d68a6-b511-4c… 2018-08-27T… installation:73e… dataset_type… country:…
#> 8 5e0073bc-de2a-4b… 2018-08-27T… installation:688… dataset_type… country:…
#> 9 ab2684cf-62e5-4f… 2018-08-27T… installation:804… dataset_type… country:…
#> 10 34fbcf59-d9bb-47… 2018-08-27T… installation:7c5… dataset_type… country:…
#> # … with 2,894 more rows
count_identifiers()
list_records(from = '2018-05-01T', until = '2018-05-15T')
#> # A tibble: 44 x 26
#> identifier datestamp setSpec setSpec.1 setSpec.2 title publisher
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
#> 1 18799ce9-… 2018-05-… instal… dataset_… country:… Bird… Sokoine …
#> 2 79f51633-… 2018-05-… instal… dataset_… country:… Impl… Aïgos SAS
#> 3 f83746ee-… 2018-05-… instal… dataset_… country:… NDFF… Dutch Na…
#> 4 a3533a61-… 2018-05-… instal… dataset_… country:… EDP … EDP - En…
#> 5 ba9b66a3-… 2018-05-… instal… dataset_… country:… Ende… Sokoine …
#> 6 78b696d9-… 2018-05-… instal… dataset_… country:… Ende… Sokoine …
#> 7 c791b255-… 2018-05-… instal… dataset_… country:… Ende… Sokoine …
#> 8 b929ccda-… 2018-05-… instal… dataset_… country:… List… Sokoine …
#> 9 da285c2a-… 2018-05-… instal… dataset_… country:… Moni… Corporac…
#> 10 87372877-… 2018-05-… instal… dataset_… country:… Moni… Corporac…
#> # … with 34 more rows, and 19 more variables: identifier.1 <chr>,
#> # subject <chr>, source <chr>, description <chr>, description.1 <chr>,
#> # type <chr>, creator <chr>, date <chr>, language <chr>, coverage <chr>,
#> # coverage.1 <chr>, format <chr>, source.1 <chr>, subject.1 <chr>,
#> # coverage.2 <chr>, creator.1 <chr>, description.2 <chr>,
#> # creator.2 <chr>, subject.2 <chr>
ids <- c("87832186-00ea-44dd-a6bf-c2896c4d09b4", "d981c07d-bc43-40a2-be1f-e786e25106ac")
get_records(ids)
#> $`87832186-00ea-44dd-a6bf-c2896c4d09b4`
#> $`87832186-00ea-44dd-a6bf-c2896c4d09b4`$header
#> # A tibble: 1 x 3
#> identifier datestamp setSpec
#> <chr> <chr> <chr>
#> 1 87832186-00ea-44dd-a6… 2018-06-29T12… installation:729a7375-b120-4e4f-bb…
#>
#> $`87832186-00ea-44dd-a6bf-c2896c4d09b4`$metadata
#> # A tibble: 0 x 0
#>
#>
#> $`d981c07d-bc43-40a2-be1f-e786e25106ac`
#> $`d981c07d-bc43-40a2-be1f-e786e25106ac`$header
#> # A tibble: 1 x 3
#> identifier datestamp setSpec
#> <chr> <chr> <chr>
#> 1 d981c07d-bc43-40a2-be… 2018-01-21T21… installation:804b8dd0-07ac-4a30-bf…
#>
#> $`d981c07d-bc43-40a2-be1f-e786e25106ac`$metadata
#> # A tibble: 1 x 12
#> title publisher identifier subject source description type creator date
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
#> 1 Pece… Institut… https://w… peces,… http:… Caracteriz… Data… Fernan… 2018…
#> # … with 3 more variables: language <chr>, coverage <chr>, format <chr>
list_metadataformats(id = "87832186-00ea-44dd-a6bf-c2896c4d09b4")
#> $`87832186-00ea-44dd-a6bf-c2896c4d09b4`
#> metadataPrefix schema
#> 1 oai_dc http://www.openarchives.org/OAI/2.0/oai_dc.xsd
#> 2 eml http://rs.gbif.org/schema/eml-gbif-profile/1.0.2/eml.xsd
#> metadataNamespace
#> 1 http://www.openarchives.org/OAI/2.0/oai_dc/
#> 2 eml://ecoinformatics.org/eml-2.1.1
list_sets("http://api.gbif.org/v1/oai-pmh/registry")
#> # A tibble: 572 x 2
#> setSpec setName
#> <chr> <chr>
#> 1 dataset_type per dataset type
#> 2 dataset_type:OCCURRENCE occurrence
#> 3 dataset_type:CHECKLIST checklist
#> 4 dataset_type:METADATA metadata
#> 5 dataset_type:SAMPLING_EVENT sampling_event
#> 6 country per country
#> 7 country:AD Andorra
#> 8 country:AO Angola
#> 9 country:AR Argentina
#> 10 country:AT Austria
#> # … with 562 more rows
Identify
id("http://www.biodiversitylibrary.org/oai")
#> repositoryName
#> 1 Biodiversity Heritage Library OAI Repository
#> baseURL protocolVersion
#> 1 https://www.biodiversitylibrary.org/oai 2.0
#> adminEmail earliestDatestamp deletedRecord granularity
#> 1 oai@biodiversitylibrary.org 2006-01-01 no YYYY-MM-DD
#> description
#> 1 oaibiodiversitylibrary.org:oai:biodiversitylibrary.org:item/1000
Get records
get_records(c("oai:biodiversitylibrary.org:item/7", "oai:biodiversitylibrary.org:item/9"),
url = "http://www.biodiversitylibrary.org/oai")
#> $`oai:biodiversitylibrary.org:item/7`
#> $`oai:biodiversitylibrary.org:item/7`$header
#> # A tibble: 1 x 3
#> identifier datestamp setSpec
#> <chr> <chr> <chr>
#> 1 oai:biodiversitylibrary.org:item/7 2016-07-13T09:13:41Z item
#>
#> $`oai:biodiversitylibrary.org:item/7`$metadata
#> # A tibble: 1 x 11
#> title creator subject description publisher contributor date type
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
#> 1 Die … Fleisc… Bogor;… pt.5:v.1 (… Leiden :… Missouri B… 1900… text…
#> # … with 3 more variables: identifier <chr>, language <chr>, rights <chr>
#>
#>
#> $`oai:biodiversitylibrary.org:item/9`
#> $`oai:biodiversitylibrary.org:item/9`$header
#> # A tibble: 1 x 3
#> identifier datestamp setSpec
#> <chr> <chr> <chr>
#> 1 oai:biodiversitylibrary.org:item/9 2016-07-13T09:13:41Z item
#>
#> $`oai:biodiversitylibrary.org:item/9`$metadata
#> # A tibble: 1 x 11
#> title creator subject description publisher contributor date type
#> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr>
#> 1 Die … Fleisc… Bogor;… pt.5:v.3 (… Leiden :… Missouri B… 1906… text…
#> # … with 3 more variables: identifier <chr>, language <chr>, rights <chr>
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.