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Harvard Library provides open access to our metadata through APIs, including LibraryCloud and the Caselaw Access Project. Overview. Are you a developer looking to build better experiences for library users? Are you a data scientist studying library information architecture?
- LibraryCloud
Harvard LibraryCloud is a metadata hub that provides...
- LibraryCloud APIs
LibraryCloud offers item and collection APIs that provide...
- APIs
Ready to launch and integrate your apps? Check out the...
- LibraryCloud Metadata
Harvard’s LibraryCloud service provides API access to...
- LibraryCloud
- Keyword Query
- Query Response
- Searching by Field
- Accented Characters and Punctuation
- Stemming, Stopwords and Wildcards
- Pagination
- Sorting
- Facets
- Response Format
- Response Serialization
The simplest query to the API includes only a search term: https://api.lib.harvard.edu/v2/items?q=peanuts The response will include all items where any field contains the text “peanuts”. Multiple terms may be used in a simple query: https://api.lib.harvard.edu/v2/items?q=Schulz peanuts https://api.lib.harvard.edu/v2/items?q=Schulz+peanuts https://a...
The response to any query contains the total number of matching records, the number of records included within this response, the page number of this response, and the matching records. Sample XML response: https://api.lib.harvard.edu/v2/items?q=peanuts Sample JSON response: https://api.lib.harvard.edu/v2/items.json?q=peanuts
See the Field Referencefor a list of field-based queries. A query can be limited to a particular field: https://api.lib.harvard.edu/v2/items?title=peanuts This query returns all items with the text “peanuts” in the title field. Field-based queries support combining or excluding terms with AND, OR, NOT: https://api.lib.harvard.edu/v2/items?subject=s...
If your query terms contain accented characters, include these in the search: https://api.lib.harvard.edu/v2/items?name=Saint-Exupéry, Antoine de https://api.lib.harvard.edu/v2/items?name=Molière If your query includes an ampersand, the ampersand must be replaced by the URL-encoded equivalent (%26). For example, to search the title Saxo Grammaticus...
LibraryCloud uses standard Solr index stemming and stopword lists. The stemming algorithm is based on the Porter stemming algorithm. Keywords may be wild-carded with an asterisk: https://api.lib.harvard.edu/v2/items?title=peanut* https://api.lib.harvard.edu/v2/items?title=p*nut
By default, a query response will include the first 10 records available. You can increase the number of records returned (up to a max of 250) by using the optional limit parameter. For example, the following query will return the first set of 50 matching records: https://api.lib.harvard.edu/v2/items?title=peanuts&limit=50 You can combine limit wit...
By default, query responses are sorted by relevancy and sub-sorted by record identifier. In some cases, query responses can be sorted in ascending or descending alphanumeric order. See the "Alpha Sort" column in the Field Referencefor an indication of which fields support alphanumeric sorting. This query returns results sorted in ascending order by...
Facets are attributes of an item (name, genre, type of resource, language, date, etc.) that can be used to power a faceted search or browse option in a discovery system. The items API supports a facets parameter that will return a list of facet values present in the query results. Many item API fields are available for faceting – see the Field Refe...
By default, all responses are in MODS format. Dublin Core (DC) can be requested by adding .dc to the base URI https://api.lib.harvard.edu/v2/items.dc?title=peanuts
By default, all responses are returned as XML. Responses can be returned as JSON either by adding “.json” to the base URI, or by setting the “Accept” HTTP header in the request to “application/json”. When specifying both the response format and serialization, the format should be added first. https://api.lib.harvard.edu/v2/items.json?title=peanuts ...
20. Aug. 2021 · Harvard LibraryCloud is a metadata hub that provides granular, open access to a large aggregation of Harvard library bibliographic metadata. The public LibraryCloud Item API supports searching LibraryCloud and obtaining results in a normalized MODS or Dublin Core format.
Ready to launch and integrate your apps? Check out the Harvard API Portal, where you can: Review getting started information and FAQs. Browse the API Catalog. View OpenAPI specs for each API, including examples, paths, schemas and available data elements.
Library APIs (application programming interfaces) let you access structured information about library collections. To use an API, you construct a URL that sends a request. You can use your browser, a special app, or a programming language to send requests.
28. Juni 2024 · Harvard’s LibraryCloud service provides API access to descriptive metadata for Harvard Library resources. LibraryCloud metadata is openly available to the public. Anyone can use the API to find, gather, and repurpose the metadata.
Harvard API Portal. API fundamentals. Harvard's administrative data APIs. Public APIs. Harvard Business Review: APIs aren't just for tech companies. Get access to all Harvard APIs and get answers to your Harvard data questions.
