Overview

Introduction

The Fedora 4 HTTP API is generally a RESTful API. HTTP methods like GET, PUT, POST and DELETE are implemented on most resource paths. The API also relies heavily on content negotiation to deliver context-appropriate responses, and a HATEOAS-driven text/html response (providing a decent GUI experience on top of the repository). The Fedora 4 RDF-based responses may be serialized as:

application/ld+json
application/n-triples
application/rdf+xml
text/n3 (or text/rdf+n3)
text/plain
text/turtle (or application/x-turtle)

The text/html response also includes embedded RDFa markup.

Fedora 4 implements the Linked Data Platform 1.0 Architecture, which:

[...] describes the use of HTTP for accessing, updating, creating and deleting resources from servers that expose their resources as Linked Data. It provides clarifications and extensions of the rules of Linked Data [LINKED-DATA]:

Use URIs as names for things

Use HTTP URIs so that people can look up those names

When someone looks up a URI, provide useful information, using the standards (RDF*, SPARQL)

Include links to other URIs, so that they can discover more things

Endpoints

Resources

Repository objects can be loosely divided into two classes of resources:

- Containers ("fedora:Container"), containing RDF properties and 0 or more child resources
- Binaries, containing any binary payload (roughly corresponding to Fedora 3 datastreams)

Containers

RESTful HTTP API - Containers

Request URI: /path/to/some/resource

Methods: GET, POST, PUT, PATCH, HEAD, OPTIONS, DELETE, MOVE, COPY

GET Retrieve the content of the resource

Request Headers:

RANGE Byte range of content to retrieve, of the form: "Range: bytes=500-999"

ACCEPT RDF sources support content negotiation with these formats: application/ld+json, application/n-triples, application/rdf+xml, application/x-turtle, application/xhtml+xml, application/xml, text/html, text/n3, text/plain, text/rdf+n3, text/turtle

Note: JSON-LD profiles can be requested by using the following Accept headers:

Accept: application/ld+json; profile=\"http://www.w3.org/ns/json-ld#expanded\"" - default
Accept: application/ld+json; profile=\"http://www.w3.org/ns/json-ld#compacted\""
Accept: application/ld+json; profile=\"http://www.w3.org/ns/json-ld#flattened\""

LIMIT Number of child resources to list. If paired with Accept: (X)HTML, the default is 100. Otherwise, the default is -1 (all children are listed)

IF-NONE-MATCH IF-MODIFIED-SINCE

PREFER return=minimal

return=representation
return=representation; include=" URIs "
return=representation; omit=" URIs "

where minimal indicates that only triples directly related to a resource should be returned, and representation indicates that links to other resources and their properties should also be included. URIs is a space-separate list of LDP defined preferences, and also:

URI	Description
http://fedora.info/definitions/v4/repository#EmbedResources	Embed "child" resources in the returned representation
http://fedora.info/definitions/v4/repository#InboundReferences	Include assertions from other Fedora resources to this node (excluded from representation by default)
http://fedora.info/definitions/v4/repository#ServerManaged	Embed server managed properties in the representation (enabled by default)

Example (1): Turtle

curl -H "Accept: text/turtle" "http://localhost:8080/rest/path/to/resource"

Response:

Status: 200 OK
 
Headers:
ETag: "0ed38fe211c2663ace5322e970e7b7d606196e00"
Last-Modified: Mon, 19 May 2014 19:44:59 GMT
Preference-Applied: return=representation; include="http://www.w3.org/ns/ldp#PreferMembership http://www.w3.org/ns/ldp#PreferContainment"
Vary: Prefer
Accept-Patch: application/sparql-update
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS
Accept-Post: text/turtle,text/rdf+n3,application/n3,text/n3,application/rdf+xml,application/n-triples,multipart/form-data,application/sparql-update
Link: <http://www.w3.org/ns/ldp#Resource>;rel="type"
Link: <http://www.w3.org/ns/ldp#DirectContainer>;rel="type"
Content-Type: text/turtle
 
Body:

<http://localhost:8080/rest/path/to/resource> <http://fedora.info/definitions/v4/rest-api#hasAccessRoles> <http://localhost:8080/rest/path/to/resource/fcr:accessroles> ;
    <http://fedora.info/definitions/v4/rest-api#exportsAs> <http://localhost:8080/rest/path/to/resource/fcr:export?format=jcr/xml> ;
    <http://fedora.info/definitions/v4/repository#hasParent> <http://localhost:8080/rest/path/to> ;
    a <http://www.w3.org/ns/ldp#Container> , <http://www.w3.org/ns/ldp#DirectContainer> ;
    <http://www.w3.org/ns/ldp#membershipResource> <http://localhost:8080/rest/path/to/resource> ;
    <http://www.w3.org/ns/ldp#hasMemberRelation> <http://fedora.info/definitions/v4/repository#hasChild> ;
    a <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , <http://fedora.info/definitions/v4/rest-api#resource> , <http://fedora.info/definitions/v4/rest-api#object> , <http://fedora.info/definitions/v4/rest-api#relations> , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified> , <http://www.jcp.org/jcr/mix/1.0referenceable> , <http://purl.org/dc/elements/1.1/describable> , <http://fedora.info/definitions/v4/rest-api#resource> ;
    <http://fedora.info/definitions/v4/repository#primaryType> "nt:folder"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#created> "2014-05-19T19:44:59.647Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModified> "2014-05-19T19:44:59.645Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#mixinTypes> "fedora:resource"^^<http://www.w3.org/2001/XMLSchema#string> , "fedora:object"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModifiedBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#uuid> "2b655d37-e88a-44c5-86c1-3b3935cdea49"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#createdBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    a <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , <http://fedora.info/definitions/v4/rest-api#resource> , <http://fedora.info/definitions/v4/rest-api#object> , <http://fedora.info/definitions/v4/rest-api#relations> , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified>, <http://www.jcp.org/jcr/mix/1.0referenceable> , <http://purl.org/dc/elements/1.1/describable> , <http://fedora.info/definitions/v4/rest-api#resource> .

Example (2): RDF/XML

curl -H "Accept: application/rdf+xml" "http://localhost:8080/rest/path/to/resource"

Response:

Status: 200 OK
 
Headers:
ETag: "0ed38fe211c2663ace5322e970e7b7d606196e00"
Last-Modified: Mon, 19 May 2014 19:44:59 GMT
Preference-Applied: return=representation; include="http://www.w3.org/ns/ldp#PreferMembership http://www.w3.org/ns/ldp#PreferContainment"
Vary: Prefer
Accept-Patch: application/sparql-update
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS
Accept-Post: text/turtle,text/rdf+n3,application/n3,text/n3,application/rdf+xml,application/n-triples,multipart/form-data,application/sparql-update
Link: <http://www.w3.org/ns/ldp#Resource>;rel="type"
Link: <http://www.w3.org/ns/ldp#DirectContainer>;rel="type"
Content-Type: application/rdf+xml 

Body:


<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">

<rdf:Description rdf:about="http://localhost:8080/rest/path/to/resource">
    <hasAccessRoles xmlns="http://fedora.info/definitions/v4/rest-api#" rdf:resource="http://localhost:8080/rest/path/to/resource/fcr:accessroles"/>
    <exportsAs xmlns="http://fedora.info/definitions/v4/rest-api#" rdf:resource="http://localhost:8080/rest/path/to/resource/fcr:export?format=jcr/xml"/>
    <hasParent xmlns="http://fedora.info/definitions/v4/repository#" rdf:resource="http://localhost:8080/rest/path/to"/>
    <rdf:type rdf:resource="http://www.w3.org/ns/ldp#Container"/>
    <rdf:type rdf:resource="http://www.w3.org/ns/ldp#DirectContainer"/>
    <membershipResource xmlns="http://www.w3.org/ns/ldp#" rdf:resource="http://localhost:8080/rest/path/to/resource"/>
    <hasMemberRelation xmlns="http://www.w3.org/ns/ldp#" rdf:resource="http://fedora.info/definitions/v4/repository#hasChild"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0folder"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0hierarchyNode"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0base"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0created"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#resource"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#object"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#relations"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0created"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0lastModified"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0referenceable"/>
    <rdf:type rdf:resource="http://purl.org/dc/elements/1.1/describable"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#resource"/>
    <primaryType xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">nt:folder</primaryType>
    <created xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2014-05-19T19:44:59.647Z</created>
    <lastModified xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2014-05-19T19:44:59.645Z</lastModified>
    <mixinTypes xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">fedora:resource</mixinTypes>
    <mixinTypes xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">fedora:object</mixinTypes>
    <lastModifiedBy xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">bypassAdmin</lastModifiedBy>
    <uuid xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2b655d37-e88a-44c5-86c1-3b3935cdea49</uuid>
    <createdBy xmlns="http://fedora.info/definitions/v4/repository#" rdf:datatype="http://www.w3.org/2001/XMLSchema#string">bypassAdmin</createdBy>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0folder"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0hierarchyNode"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/nt/1.0base"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0created"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#resource"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#object"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#relations"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0created"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0lastModified"/>
    <rdf:type rdf:resource="http://www.jcp.org/jcr/mix/1.0referenceable"/>
    <rdf:type rdf:resource="http://purl.org/dc/elements/1.1/describable"/>
    <rdf:type rdf:resource="http://fedora.info/definitions/v4/rest-api#resource"/>
</rdf:Description>

</rdf:RDF>

Example (3): Prefer headers

curl -H "Prefer: return=representation; include=\"http://fedora.info/definitions/v4/repository#InboundReferences\"; omit=\"http://www.w3.org/ns/ldp#PreferMembership http://www.w3.org/ns/ldp#PreferContainment\"" http://localhost:8080/rest/parent

Response:

Status: 200 OK
 
Headers:
ETag: "25fb5cb1d24983d57b10cb0b4656de113d5b8257"
Last-Modified: Mon, 19 May 2014 19:24:40 GMT
Preference-Applied: return=representation; include="http://fedora.info/definitions/v4/repository#InboundReferences"
Vary: Prefer
Accept-Patch: application/sparql-update
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS
Accept-Post: text/turtle,text/rdf+n3,application/n3,text/n3,application/rdf+xml,application/n-triples,multipart/form-data,application/sparql-update
Link: <http://www.w3.org/ns/ldp#Resource>;rel="type"
Link: <http://www.w3.org/ns/ldp#DirectContainer>;rel="type"
Content-Type: text/turtle
 
Body:

<http://localhost:8080/rest/parent> <http://fedora.info/definitions/v4/rest-api#hasAccessRoles> <http://localhost:8080/rest/parent/fcr:accessroles> ;
    <http://fedora.info/definitions/v4/rest-api#exportsAs> <http://localhost:8080/rest/parent/fcr:export?format=jcr/xml> ;
    <http://fedora.info/definitions/v4/repository#hasParent> <http://localhost:8080/rest/> ;
    a <http://www.w3.org/ns/ldp#Container> , <http://www.w3.org/ns/ldp#DirectContainer> ;
    <http://www.w3.org/ns/ldp#membershipResource> <http://localhost:8080/rest/parent> ;
    <http://www.w3.org/ns/ldp#hasMemberRelation> <http://fedora.info/definitions/v4/repository#hasChild> ;
    a <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , <http://fedora.info/definitions/v4/rest-api#resource> , <http://fedora.info/definitions/v4/rest-api#object> , <http://fedora.info/definitions/v4/rest-api#relations> , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified>, <http://www.jcp.org/jcr/mix/1.0referenceable> , <http://purl.org/dc/elements/1.1/describable> , <http://fedora.info/definitions/v4/rest-api#resource> .

<http://localhost:8080/rest/collection> <http://fedora.info/definitions/v4/rels-ext#hasCollectionMember> <http://localhost:8080/rest/parent> .

<http://localhost:8080/rest/parent> <http://fedora.info/definitions/v4/repository#primaryType> "nt:folder"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#created> "2014-05-19T19:21:37.182Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModified> "2014-05-19T19:24:40.662Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#mixinTypes> "fedora:resource"^^<http://www.w3.org/2001/XMLSchema#string> , "fedora:object"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModifiedBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#uuid> "c21706cd-cc1a-4d77-b637-d940e0dc7888"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#createdBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    a <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , <http://fedora.info/definitions/v4/rest-api#resource> , <http://fedora.info/definitions/v4/rest-api#object> , <http://fedora.info/definitions/v4/rest-api#relations> , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified>, <http://www.jcp.org/jcr/mix/1.0referenceable> , <http://purl.org/dc/elements/1.1/describable> , <http://fedora.info/definitions/v4/rest-api#resource> .

Example (4): Non-RDF Source

curl "http://localhost:8080/rest/path/to/binary/resource"

Response:

Status: 200 OK
 
Headers:
ETag: "0ed38fe211c2663ace5322e970e7b7d606196e00"
Last-Modified: Mon, 19 May 2014 19:44:59 GMT
Vary: Prefer
Link: <http://localhost:8080/rest/path/to/binary/resource/fcr:metadata">;rel="describedby"
Content-Type: image/jpg
 
Body:

{binary content}

Status:

200 OK

304 Not Modified

404 Not Found

406 Not Acceptable (the 'Accept' request-header media type is either invalid or unsupported)

POST Create new resources within a LDP container

Request Headers:

CONTENT-DISPOSITION (Optional) The filename provided in the content disposition header will be stored in a ebucore:filename property. (See 'Example (6): Uploaded file with filename')

CONTENT-TYPE (Optional) MIME type of the uploaded binary or RDF content, including: message/external-body (See ' Example (2): Create a new child binary resource with empty content ')

If the MIME type corresponds to a supported RDF format or SPARQL-Update, the uploaded content will be parsed as RDF and used to populate the child node properties. RDF will be interpreted using the current resource as the base URI (e.g. <> will be expanded to the current URI). Namespaces must be declared in full.

For other MIME types, the uploaded content will be used to create a binary resource.

SLUG (Optional) A suggested name for the new child resource, which the repository may ignore.

The slug you provide does not guarantee the location of the created resource. Clients must check the Location header for the path to the created resource.

DIGEST (Optional) A way of providing one or more checksums (SHA-1, SHA-256, MD5) which will be checked against the uploaded content to ensure error-free transfer. The header is interpreted according to RFC-3230 (See 'Example (4): Uploaded file with checksum' and 'Example (5): Uploaded file with checksum mismatch') If the provided checksum does not match the calculated value for the uploaded file a 409 Conflict will be returned. See PATCH example for documentation on how to change the default algorithm used during on-demand fixity checking.

Example (1): Create a new child node

curl -X POST "http://localhost:8080/rest/"

Response:

Status: 201 Created
 
Headers:
ETag: "3ac31b09de1536a332d9c6ee8453669947721840"
Location: http://localhost:8080/rest/some/path/to/a/new/resource
 
Body:
http://localhost:8080/rest/some/path/to/a/new/resource

Example (2): Create a new child binary resource with empty content

curl -i -X POST -H "Content-Type:text/plain" "http://localhost:8080/rest"

Response:

Status: 201 Created
ETag: "487f188240d2be3ae32d49958c0eeea18224be0a"
Last-Modified: Thu, 29 May 2014 15:46:13 GMT
Link: <http://localhost:8080/rest/b8/fc/32/be/b8fc32be-34be-428e-bf7c-81be97e5f2e3/fcr:metadata>; rel="describedby"; anchor="http://localhost:8080/rest/b8/fc/32/be/b8fc32be-34be-428e-bf7c-81be97e5f2e3"
Location: http://localhost:8080/rest/b8/fc/32/be/b8fc32be-34be-428e-bf7c-81be97e5f2e3
Content-Type: text/plain
Transfer-Encoding: chunked
 
Body:
http://localhost:8080/rest/b8/fc/32/be/b8fc32be-34be-428e-bf7c-81be97e5f2e3

Example (3): Create a new container with RDF properties

curl -i -X POST -H "Content-Type: text/turtle" --data-binary "@body.rdf" "http://localhost:8080/rest/"
 
Request Body:
PREFIX dc: <http://purl.org/dc/elements/1.1/>
<> dc:title "some-resource-title"

Response:

Status: 201 Created
 
Headers:
ETag: "a66937ca13bc29c63f7b1a55d447a76cd8f1d573"
Location: http://localhost:8080/rest/new/node/uri
 
Body:
http://localhost:8080/rest/new/node/uri

Example (4): Uploaded file with checksum

curl -i -X POST --data-binary "@picture.jpg" -H"digest: sha1=cb1a576f22e8e3e110611b616e3e2f5ce9bdb941" "http://localhost:8080/rest/parent/container"

Response:

Status: 201 Created
 
Headers:
ETag: "fe4e2bf389fe05dab6390564e40012d8d36eca19"
Location: http://localhost:8080/rest/parent/object/auto/generated/ds/id
 
Body:
http://localhost:8080/rest/parent/object/auto/generated/ds/id

Example (4b): Uploaded file with multiple checksum

curl -i -X POST --data-binary "@picture.jpg" -H"digest: sha1=cb1a576f22e8e3e110611b616e3e2f5ce9bdb941, sha256=95331b60710d0400ee4913b5613c78f54" "http://localhost:8080/rest/parent/container"

Response:

Status: 201 Created
 
Headers:
ETag: "fe4e2bf389fe05dab6390564e40012d8d36eca19"
Location: http://localhost:8080/rest/parent/object/auto/generated/ds/id
 
Body:
http://localhost:8080/rest/parent/object/auto/generated/ds/id

Example (5): Uploaded file with checksum mismatch

curl -X POST --data-binary "@picture.jpg" -H"digest: sha1=checksumdoesntmatch" "http://localhost:8080/rest/parent/object"

Response:

Status: 409 Conflict
 
Body:
Checksum Mismatch of cb1a576f22e8e3e110611b616e3e2f5ce9bdb941 and urn:sha1:checksumdoesntmatch

Example (6): Uploaded file with filename

curl -i -X POST --data-binary "@picture.jpg" -H "Content-Disposition: attachment; filename=\"picture.jpg\"" "http://localhost:8080/rest/parent/container"

Response:

Status: 201 Created
 
Headers:
ETag: "fe4e2bf389fe05dab6390564e40012d8d36eca19"
Location: http://localhost:8080/rest/parent/object/auto/generated/ds/id
 
Body:
http://localhost:8080/rest/parent/object/auto/generated/ds/id

Status:

201 Created

404 Not Found (resource does not exist – use PUT to specify a new resource name)

409 Conflict (checksum mismatch)

PUT Create a resource with a specified path, or replace the triples associated with a resource with the triples provided in the request body.

Some resource properties are repository managed and cannot be removed or modified. Any attempt to do so may result in a 4xx error.

RDF will be interpreted using the current resource as the base URI (e.g. <> will be expanded to the current URI)

Request Headers:

CONTENT-TYPE text/turtle, text/rdf+n3, application/n3, text/n3, application/rdf+xml, application/n-triples, text/html, text/plain, application/ld+json, message/external-body

IF-MATCH

IF-UNMODIFIED-SINCE

DIGEST (Optional) A way of providing one or more checksums (SHA-1, SHA-256, MD5) which will be checked against the uploaded content to ensure error-free transfer. The header is interpreted according to RFC-3230 (See 'Example (3): Creating new binary resource at a specified path') If the provided checksum does not match the calculated value for the uploaded file a 409 Conflict will be returned. See Fixity Service for documentation on how to change the default algorithm used during on-demand fixity checking.

PREFER With the value handling=lenient; received="minimal" allows replacing the properties of a container without having to provide all of the server-managed triples.

Example (1): Updating properties with RDF content

1.1 Perform a GET to the current container's RDF content

curl -X GET -H "Accept: text/turtle" "http://localhost:8080/rest/node/to/update" 
 
Body:
PREFIX dc: <http://purl.org/dc/elements/1.1/>
...
PREFIX ldp: <http://www.w3.org/ns/ldp#>
<http://localhost:8080/rest/node/to/update> a ldp:RDFSource , ldp:Container , <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , fedora:Container , fedora:Resource , fedora:Resource , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified> , <http://www.jcp.org/jcr/mix/1.0referenceable> ;
	fedora:primaryType "nt:folder"^^<http://www.w3.org/2001/XMLSchema#string> ;
	fedora:created "2014-11-20T16:23:31.684Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
	fedora:lastModified "2014-11-20T16:23:31.684Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
	fedora:mixinTypes "fedora:Container"^^<http://www.w3.org/2001/XMLSchema#string> , "fedora:Resource"^^<http://www.w3.org/2001/XMLSchema#string> ;
	...
<http://fedora.info/definitions/v4/repository#jcr/xml> rdfs:label "jcr/xml"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://54.173.23.104:8080/fcrepo4/rest/test1/fcr:export?format=jcr/xml> dc:format <http://fedora.info/definitions/v4/repository#jcr/xml> .

1.2 Add your updates (e.g. <> dc:title "some-resource-title" .) under the full result of the GET response in 1.1

curl -X PUT -H "Content-Type: text/turtle" --data-binary "@new-triples.rdf" "http://localhost:8080/rest/node/to/update"
 
Request Body:
 
PREFIX dc: <http://purl.org/dc/elements/1.1/>
...
PREFIX ldp: <http://www.w3.org/ns/ldp#>
<http://localhost:8080/rest/node/to/update> a ldp:RDFSource , ldp:Container , <http://www.jcp.org/jcr/nt/1.0folder> , <http://www.jcp.org/jcr/nt/1.0hierarchyNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0created> , fcrepo:Container , fcrepo:Resource , fcrepo:Resource , <http://www.jcp.org/jcr/mix/1.0created> , <http://www.jcp.org/jcr/mix/1.0lastModified> , <http://www.jcp.org/jcr/mix/1.0referenceable> ;
	fcrepo:primaryType "nt:folder"^^<http://www.w3.org/2001/XMLSchema#string> ;
	fcrepo:created "2014-11-20T16:23:31.684Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
	fcrepo:lastModified "2014-11-20T16:23:31.684Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
	fcrepo:mixinTypes "fedora:Container"^^<http://www.w3.org/2001/XMLSchema#string> , "fedora:Resource"^^<http://www.w3.org/2001/XMLSchema#string> ;
	...
<http://fedora.info/definitions/v4/repository#jcr/xml> rdfs:label "jcr/xml"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://54.173.23.104:8080/fcrepo4/rest/test1/fcr:export?format=jcr/xml> dc:format <http://fedora.info/definitions/v4/repository#jcr/xml> .
<> dc:title "some-resource-title" .

Response:

Status: 204 No Content

Note that to prevent conflicts, the value of the fedora:lastModified triple in the request must match its current counterpart in the repository. The way to ensure this is to base the changes in a PUT request on the RDF content obtained in an immediately prior GET request, and never try to PUT consecutively, as this will result in a 400 error.

Example (2): Creating a new resource at a specified path

curl -i -X PUT "http://localhost:8080/rest/node/to/create"

Response:

Status: 201 Created

Response Headers:
ETag: "ef214795c3b9109389ffa542a6c081976e1e9587"
Last-Modified: Mon, 19 May 2014 20:52:57 GMT
Location: http://localhost:8080/rest/node/to/create
 
Body:
http://localhost:8080/rest/node/to/create

Example (3): Creating new binary resource at a specified path

curl -X PUT --upload-file image.jpg -H"Content-Type: image/jpeg" -H"digest: sha1=cb1a576f22e8e3e110611b616e3e2f5ce9bdb941" "http://localhost:8080/rest/new/image"

Response:

Status: 201 Created

Headers:
ETag: "urn:sha1:ea3d29b28522724a82de042a7b7a4e79a1653435"
Last-Modified: Mon, 19 May 2014 20:55:31 GMT
Location: http://localhost:8080/rest/new/image
 
Body:
http://localhost:8080/rest/new/image

Note that once a resource is created as an RDF or non-RDF source, it must remain an RDF or non-RDF source. In order to change the type of resource, you must DELETE and then re-create the resource.

Status:

204 No Content

412 Precondition Failed

Example (4): Creating a new binary resource at a specified path redirecting to external content

curl -X PUT -H"Content-Type: message/external-body; access-type=URL; URL=\"http://www.example.com/file\"" "http://localhost:8080/rest/node/to/create"

Response:

Status: 201 Created

Headers:
ETag: "ef214795c3b9109389ffa542a6c081976e1e9587"
Last-Modified: Mon, 19 May 2014 20:52:57 GMT
Link: <http://localhost:8080/rest/node/to/create/fcr:metadata>; rel="describedby"
Location: http://localhost:8080/rest/node/to/create
 
Body:
http://localhost:8080/rest/node/to/create

PATCH Modify the triples associated with a resource with SPARQL-Update

Request Headers:

IF-MATCH

IF-UNMODIFIED-SINCE

CONTENT-TYPE

Example (1):

curl -X PATCH -H "Content-Type: application/sparql-update" --data-binary "@body.rdf" "http://localhost:8080/rest/node/to/update"
 
Request Body:
 
PREFIX dc: <http://purl.org/dc/elements/1.1/>
INSERT {   
  <> dc:title "some-resource-title" .
}
WHERE { }

Response:

Status: 204 No Content

Example (2) Update default fixity algorithm:

curl -X PATCH -H "Content-Type: application/sparql-update" --data-binary "@body.rdf" "http://localhost:8080/rest/binary/resource/to/update"
 
Request Body:


PREFIX fedoraconfig: <http://fedora.info/definitions/v4/config#>
INSERT { 
	<> fedoraconfig:defaultDigestAlgorithm "sha-256" 
}
WHERE  { }

Response:

Status: 204 No Content

Status:

204 No Content

412 Precondition Failed

DELETE Delete a resource

Example:

curl -X DELETE "http://localhost:8080/rest/resource/to/delete"

Response:

Status: 204 No Content

Delete requests create "tombstone" resources which need to be removed before you can reuse a URI.

Example:

curl -X GET "http://localhost:8080/rest/some/deleted/resource"

Status: 410 Gone
Link: <http://localhost:8080/rest/some/deleted/resource/fcr:tombstone>; rel="hasTombstone"
 
Body:
Discovered tombstone resource at /some/deleted/resource, departed: 2016-11-14T17:26:17.334-06:00

curl -X DELETE "http://localhost:8080/rest/some/deleted/resource/fcr:tombstone"

Status: 204 No Content

Create a new node and reuse the deleted URL

curl -X PUT "http://localhost:8080/rest/some/deleted/resource"

Status: 201 Created

Status:

204 No Content

404 Not Found

HEAD Retrieve the resource headers

Example:

curl -i -X HEAD "http://localhost:8080/rest/resource/to/head"

Response:

Status: 200 OK
ETag: "bbdd92e395800153a686773f773bcad80a51f47b"
Last-Modified: Wed, 28 May 2014 18:31:36 GMT
Last-Modified: Thu, 20 Nov 2014 15:44:32 GMT
Link: <http://www.w3.org/ns/ldp#Resource>;rel="type"
Link: <http://www.w3.org/ns/ldp#Container>;rel="type"
Link: <http://www.w3.org/ns/ldp#BasicContainer>;rel="type"
Accept-Patch: application/sparql-update
Accept-Post: text/turtle,text/rdf+n3,text/n3,application/rdf+xml,application/n-triples,multipart/form-data,application/sparql-update
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS

Status:

200 OK

404 Not Found

OPTIONS Outputs information about the supported HTTP methods, etc.

Example:

curl -i -X OPTIONS "http://localhost:8080/rest/node/to/options"

Response:

Status: 200 OK
Accept-Patch: application/sparql-update
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS
Accept-Post: text/turtle,text/rdf+n3,application/n3,text/n3,application/rdf+xml,application/n-triples,multipart/form-data,application/sparql-update

Status:

200 OK

MOVE Move a resource (and its subtree) to a new location

Note: A federated resource can be moved within the federation, but not from the federation to the internal repository (or vice versa)

Example (1):

curl -X MOVE -H "Destination: http://localhost:8080/rest/new/path/to/resource" "http://localhost:8080/rest/path/to/resource"

Response:

Status: 201 Created
 
Headers:
Location: http://localhost:8080/rest/new/path/to/resource

Example (2):

curl -X MOVE "http://localhost:8080/rest/path/to/resource"

Response:

Status: 502 Bad Gateway

Status:

201 Created

409 Source path doesn't exist

412 Destination path already exists

502 Destination URI isn't a valid resource path

COPY Copy a resource (and its subtree) to a new location

Example:

curl -X COPY -H "Destination: http://localhost:8080/rest/new/path/to/resource" "http://localhost:8080/rest/path/to/resource"

Response:

Status: 201 Created
 
Headers:
Location: http://localhost:8080/rest/new/path/to/resource

Status:

201 Created

409 Source path doesn't exists

412 Destination path already exists

502 Destination URI isn't a valid resource path

Export and Import

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Versioning

RESTful HTTP API - Versioning

Request URI: /path/to/some/resource/fcr:versions

Methods: GET, POST, PATCH

GET Get a list of the available versions of an object

Request Headers:

ACCEPT application/ld+json, application/n-triples, application/rdf+xml, application/x-turtle, application/xhtml+xml, application/xml, text/html, text/n3, text/plain, text/rdf+n3, text/turtle

Example:

curl -H "Accept: text/turtle" http://localhost:8080/rest/path/to/resource/fcr:versions

Response:

Status: 200 OK

Headers:
Content-Type: text/turtle

Body:
<http://localhost:8080/rest/path/to/resource> fedora:hasVersion <http://localhost:8080/rest/path/to/resource/fcr:versions/87a0a8c317f1e749515d33-cb73-4fd7-9d1d-c715eb6947e0> .
<http://localhost:8080/rest/path/to/resource/fcr:versions/87a0a8c317f1e749515d33-cb73-4fd7-9d1d-c715eb6947e0> fedora:hasVersionLabel "v0"^^<http://www.w3.org/2001/XMLSchema#string> ;
        fedora:created "2014-12-03T23:55:38.47Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> .

<http://localhost:8080/rest/path/to/resource> fedora:hasVersion <http://localhost:8080/rest/path/to/resource/fcr:versions/87a0a8c317f1e7dae533ec-b1b6-4da1-8bb9-f1964e253572> .
<http://localhost:8080/rest/path/to/resource/fcr:versions/87a0a8c317f1e7dae533ec-b1b6-4da1-8bb9-f1964e253572> fedora:hasVersionLabel "v1"^^<http://www.w3.org/2001/XMLSchema#string> ;
        fedora:created "2014-12-03T23:56:12.863Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> .

Status:

200 OK

404 Not Found: This resource is not versioned or this resource is not exist.

Response: The requested resource is not available.

GET Get a previous version of an object

Request Headers:

ACCEPT application/ld+json, application/n-triples, application/rdf+xml, application/x-turtle, application/xhtml+xml, application/xml, text/html, text/n3, text/plain, text/rdf+n3, text/turtle

Example:

curl http://localhost:8080/rest/resource/fcr:versions/<version-label>

Response:

Status: 200 OK

Response Headers:
ETag: "39f0d8a01a066771e56f70be892a39a7b505843c"
Last-Modified: Tue, 20 May 2014 19:29:10 GMT
Content-Type: text/turtle

Body:

<http://localhost:8080/rest/resource/fcr:versions/87a0a8c317f1e72c658170-624d-40f9-96cb-21ede3392155> <http://fedora.info/definitions/v4/repository#primaryType> "nt:frozenNode"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#frozenPrimaryType> "nt:folder"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#created> "2014-05-20T19:29:00.192Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#frozenMixinTypes> "fedora:resource"^^<http://www.w3.org/2001/XMLSchema#string> , "mix:versionable"^^<http://www.w3.org/2001/XMLSchema#string> , "fedora:object"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModified> "2014-05-20T19:29:10.555Z"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#frozenUuid> "fed529c6-2121-4b1d-83fc-cc4274563612"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#lastModifiedBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#uuid> "87a0a8c317f1e72c658170-624d-40f9-96cb-21ede3392155"^^<http://www.w3.org/2001/XMLSchema#string> ;
    <http://fedora.info/definitions/v4/repository#createdBy> "bypassAdmin"^^<http://www.w3.org/2001/XMLSchema#string> ;
    a <http://www.jcp.org/jcr/nt/1.0frozenNode> , <http://www.jcp.org/jcr/nt/1.0base> , <http://www.jcp.org/jcr/mix/1.0referenceable> .

Status:

200 OK

404 Not Found: if the version or the resource does not exist

Response: The requested resource is not available.

POST Create a new version of an object

Request Headers

SLUG (Required) A suggested name for the new child resource, which the repository may ignore.

Example:

curl -X POST -H "Slug: newVersionName" http://localhost:8080/rest/path/to/resource/fcr:versions

Response:

Status: 201 Created

Status:

201 Created: if a new version is created successfully

404 Not Found: if the resource does not exist

409 Conflict: if the version label is already in use for another version of this rexource

Response: The requested resource is not available.

PATCH Revert to a previous version of an object

Example:

curl -X PATCH http://localhost:8080/rest/path/to/resource/fcr:versions/existingVersionName

Response:

Status: 204 No Content

Status:

204 No Content: if the version is reverted successfully

404 Not Found: if the version does not exist

Response: The requested resource is not available.

Request URI: /path/to/some/resource/fcr:versions/versionName

Methods: DELETE

DELETE Remove a previous version of an object

Example:

curl -X DELETE http://localhost:8080/rest/path/to/resource/fcr:versions/versionName

Response:

Status: 204 No Content

Trying to delete the current version of a resource will result in an error. To revert to an old version of a resource, first revert to the old version using the PATCH method, and then delete the newer version.

Status:

204 No Content: if the version is reverted successfully

400 Bad Request: if trying to delete the most recent version

Response: Cannot remove current version

404 Not Found: if the version does not exist

Response: The requested resource is not available.

Services

Backup and Restore

RESTful HTTP API - Backup and Restore

Request URI: /

Methods: GET, POST

POST fcr:backup Initiate a (consistent) backup of the repository

The backup will be stored in a temporary directory on the server. As yet, there is not a REST API method for retrieving the content of the backup.

Example:

curl -X POST "http://localhost:8080/rest/fcr:backup"

Response:

Status: 200 OK

Body:
/tmp/fcrepo4-data/path/to/backup/directory

Status:

200 OK

POST fcr:restore Replace repository content with data from a backup directory

Example:

curl -X POST --data-binary "/tmp/fcrepo4-data/path/to/backup/directory" "http://localhost:8080/rest/fcr:restore"

Response:

Status: 204 No Content

Status:

204 Backup restored

500 Error restoring backup

Fixity

RESTful HTTP API - Fixity

Request URI: /path/to/some/resource/fcr:fixity

Methods: GET

GET Get the fixity report for an object

Checking fixity requires retrieving the content from the binary store and may take some time.

Request Headers:

ACCEPT application/ld+json, application/n-triples, application/rdf+xml, application/x-turtle, application/xhtml+xml, application/xml, text/html, text/n3, text/plain, text/rdf+n3, text/turtle

Example:

curl -H "Accept: text/turtle" "http://localhost:8080/rest/path/to/some/resource/fcr:fixity"

Response (fixity success):

Status: 200 OK
 
Headers:
Content-Type: text/turtle
 
Body:

@prefix premis:  <http://www.loc.gov/premis/rdf/v1#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

<http://localhost:8080/rest/path/to/some/resource>
        premis:hasFixity  <http://localhost:8080/rest/path/to/some/resource#fixity/1494431303920> .

<http://localhost:8080/rest/path/to/some/resource#fixity/1494431303920>
        rdf:type                 premis:Fixity ;
        rdf:type                 premis:EventOutcomeDetail ;
        premis:hasEventOutcome   "SUCCESS" ;
        premis:hasMessageDigestAlgorithm  "SHA-1" ;
        premis:hasMessageDigest  <urn:sha1:ca3392593351ef8e6554bdabfbd8bdc1002ecb6f> ;
        premis:hasSize           "1277811"^^<http://www.w3.org/2001/XMLSchema#long> .

Response (fixity failure):

Status: 200 OK
Headers:
Content-Type: text/turtle
 
Body:

@prefix premis:  <http://www.loc.gov/premis/rdf/v1#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

<http://localhost:8080/rest/path/to/some/resource>
        premis:hasFixity  <http://localhost:8080/rest/path/to/some/resource#fixity/1494445619308> .

<http://localhost:8080/rest/path/to/some/resource#fixity/1494445619308>
        rdf:type                 premis:Fixity ;
        rdf:type                 premis:EventOutcomeDetail ;
        premis:hasEventOutcome   "BAD_CHECKSUM" ;
        premis:hasEventOutcome   "BAD_SIZE" ;
        premis:hasMessageDigestAlgorithm  "SHA-1" ;
        premis:hasMessageDigest  <urn:sha1:1d3d03c656cf0a944c393bf9257c6cecdba5263f> ;
        premis:hasSize           "1287509"^^<http://www.w3.org/2001/XMLSchema#long> .

Status:

200 OK

404 Resource not found

Default Fixity Algorithm

When ingesting a binary resource, one or more checksums may be provided, see API reference (POST example 4b). The supported algorithms are: SHA-1, SHA-256 and MD5.
By default, the algorithm used by the Fixity service is SHA-1. However, that may be changed to one of the other supported algorithms by configuring the property: fedoraconfig:defaultDigestAlgorithm . See API reference (PATCH example 2).

Transactions

RESTful HTTP API - Transactions

Request URI: /fcr:tx; /tx:{transaction_id}/path/to/resource, /tx:{transaction_id}/fcr:tx, /tx:{transaction_id}/fcr:commit, /tx:{transaction_id}/fcr:rollback

Methods: GET, POST

GET Get the current status of the repository in a transaction

Example:

curl -i "http://localhost:8080/rest/tx:86dd0891-d975-42d8-8837-a24ad6041b59"

Response:

Status: 200 OK
 
Link: <http://localhost:8080/rest/>;rel="canonical"

Body:
Same as non-transaction response.

Status:

200 OK: If the request was successful

410 Gone: Transaction not found

POST Create a new transaction

After retrieving a transaction resource, the client can execute any REST API method prefixed by the transaction location.

Transactions are automatically closed and rolled back after 3 minutes of inactivity. Transactions can be refreshed by POSTing to /rest/{tx:id}/fcr:tx

Example:

curl -i -X POST "http://localhost:8080/rest/fcr:tx"

Response:

Status: 201 Created
 
Headers:
Location: http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5
Expires: Sat, 16 Nov 2013 00:32:57 GMT

Usage:

When a transaction has been created, it will return a Location header. Use this location as the base URL for performing REST API operations within the transaction. When you are done with the transaction, either append "/fcr:tx/fcr:commit" to commit the transaction to the repository or "/fcr:tx/fcr:rollback" to discard the changes.

curl -X POST "http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5/path/to/object/to/create"
curl -X DELETE "http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5/path/to/resource/to/delete"
curl -X POST "http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5/fcr:tx/fcr:commit"

Status:

201 Created: if the transaction is created successfully

POST Keep an existing transaction alive

Example:

curl -i -X POST "http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5/fcr:tx"

Response:

Status: 204 No Content
 
Headers:
Location: http://localhost:8080/rest/tx:83e34464-144e-43d9-af13-b3464a1fb9b5
Expires: Sat, 16 Nov 2013 03:35:43 GMT

Status:

204 No Content: if the transaction is renewed successfully

410 Gone: if the transaction doesn't exist

POST Save and commit an open transaction

Any operations you made within the scope of the transaction will be applied together, meaning if any of them fail, the whole transaction will fail.

Example:

curl -i -X POST "http://localhost:8080/rest/tx:123456789/fcr:tx/fcr:commit"

Response:

Status: 204 No Content

Status:

204 No Content: if the transaction is committed successfully

410 Gone: if the transaction doesn't exist

POST Rollback and close an open transaction

Example:

curl -i -X POST "http://localhost:8080/rest/tx:123456789/fcr:tx/fcr:rollback"

Response:

Status: 204 No Content

Status:

204 No Content: if the transaction is discarded successfully

410 Gone: if the transaction doesn't exist

Page tree

Table of Contents

Overview

Introduction

Endpoints

Resources

Containers

GET Retrieve the content of the resource

POST Create new resources within a LDP container

PUT Create a resource with a specified path, or replace the triples associated with a resource with the triples provided in the request body.

PATCH Modify the triples associated with a resource with SPARQL-Update

DELETE Delete a resource

HEAD Retrieve the resource headers

OPTIONS Outputs information about the supported HTTP methods, etc.

MOVE Move a resource (and its subtree) to a new location

COPY Copy a resource (and its subtree) to a new location

Export and Import

Versioning

GET Get a list of the available versions of an object

GET Get a previous version of an object

POST Create a new version of an object

PATCH Revert to a previous version of an object

DELETE Remove a previous version of an object

Services

Backup and Restore

POST fcr:backup Initiate a (consistent) backup of the repository

POST fcr:restore Replace repository content with data from a backup directory

Fixity

GET Get the fixity report for an object

Default Fixity Algorithm

Transactions

GET Get the current status of the repository in a transaction

POST Create a new transaction

POST Keep an existing transaction alive

POST Save and commit an open transaction

POST Rollback and close an open transaction