Universität Hamburg Records API
Published research-data records and their metadata.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Universität Hamburg ZFDM Research Data Repository Records…
version: '2026-09-01'
description: Read API of the ZFDM Repository (Forschungsdatenrepositorium) operated by Universität Hamburg's Zentrum für nachhaltiges Forschungsdatenmanagement on the institution's own host, www.fdr.uni-hamburg.de.
contact:
name: ZFDM Repository, Universität Hamburg
email: repository.fdm@uni-hamburg.de
url: https://www.fdr.uni-hamburg.de/
license:
name: Per-record; see the `metadata.license` field of each record
url: https://www.fdr.uni-hamburg.de/
servers:
- url: https://www.fdr.uni-hamburg.de/api
description: Production — Universität Hamburg ZFDM Repository
tags:
- name: Records
description: Published research-data records and their metadata.
paths:
/records/:
get:
tags:
- Records
summary: Search published records
description: 'Returns a page of published records. Verified live 2026-09-01 returning 200 application/json with an RFC 8288 `Link` header carrying `rel="self"` and `rel="next"`, and `X-RateLimit-Limit` / `X-RateLimit-Remaining` / `X-RateLimit-Reset` headers. `Access-Control-Allow-Origin: *` is set.'
operationId: searchRecords
parameters:
- name: q
in: query
description: Free-text query. Verified with `q=climate`.
required: false
schema:
type: string
- name: size
in: query
description: Records per page. Verified with `size=1` and `size=2`.
required: false
schema:
type: integer
minimum: 1
- name: page
in: query
description: 1-based page number, as emitted in the `Link` header.
required: false
schema:
type: integer
minimum: 1
- name: sort
in: query
description: Sort order. Verified with `sort=mostrecent`.
required: false
schema:
type: string
- name: communities
in: query
description: Restrict to a community identifier. Verified with `communities=uhh`.
required: false
schema:
type: string
responses:
'200':
description: A page of records.
headers:
Link:
description: RFC 8288 pagination links (`self`, `next`).
schema:
type: string
X-RateLimit-Limit:
description: Observed live as 5000.
schema:
type: integer
X-RateLimit-Remaining:
schema:
type: integer
X-RateLimit-Reset:
description: Unix epoch seconds at which the window resets.
schema:
type: integer
content:
application/json:
schema:
type: object
properties:
aggregations:
type: object
hits:
type: object
properties:
hits:
type: array
items:
$ref: '#/components/schemas/Record'
total:
type: integer
links:
type: object
additionalProperties:
type: string
/records/{id}:
get:
tags:
- Records
summary: Retrieve one record
description: Verified live 2026-09-01 with id 19607 (DOI 10.25592/uhhfdm.19607).
operationId: getRecord
parameters:
- name: id
in: path
required: true
description: Numeric record id.
schema:
type: integer
responses:
'200':
description: The record.
content:
application/json:
schema:
$ref: '#/components/schemas/Record'
'404':
description: 'No such persistent identifier. Verified live returning `{"status": 404, "message": "PID does not exist."}`.'
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
components:
schemas:
Error:
type: object
properties:
status:
type: integer
message:
type: string
Record:
type: object
description: Fields observed in live responses on this host.
properties:
id:
type: integer
doi:
type: string
example: 10.25592/uhhfdm.19607
doi_url:
type: string
format: uri
conceptdoi:
type: string
conceptrecid:
type: string
created:
type: string
format: date-time
updated:
type: string
format: date-time
links:
type: object
additionalProperties:
type: string
format: uri
metadata:
type: object
properties:
title:
type: string
description:
type: string
doi:
type: string
access_right:
type: string
language:
type: string
license:
type: string
keywords:
type: array
items:
type: string
communities:
type: array
items:
type: object
properties:
identifier:
type: string
creators:
type: array
items:
type: object
properties:
name:
type: string
affiliation:
type: string
orcid:
type: string
description: ORCID iD of the creator, as published in live responses.
x-provenance:
generated: '2026-09-01'
method: derived
source:
- https://www.fdr.uni-hamburg.de/api/records/?size=1&sort=mostrecent
- https://www.fdr.uni-hamburg.de/api/records/?q=climate&size=2
- https://www.fdr.uni-hamburg.de/api/records/?communities=uhh&size=1
- https://www.fdr.uni-hamburg.de/api/records/19607
- https://www.fdr.uni-hamburg.de/api/records/999999999
- https://www.fdr.uni-hamburg.de/api/communities
- https://www.fdr.uni-hamburg.de/api/communities/uhh
- https://www.fdr.uni-hamburg.de/api/licenses/?size=2
- https://www.fdr.uni-hamburg.de/api/files/de21a6b6-468b-4bdb-8fc7-1e0a07562382
note: Derived from live unauthenticated probes of www.fdr.uni-hamburg.de on 2026-09-01. No vendor or upstream-project documentation was copied. The provider does not publish an OpenAPI for this service.
x-operator: institution