Current Release

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Table of Contents

Overview

Introduction


The Fedora 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  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]:

  1. Use URIs as names for things
  2. Use HTTP URIs so that people can look up those names
  3. When someone looks up a URI, provide useful information, using the standards (RDF*, SPARQL)
  4. 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:

URIDescription
http://fedora.info/definitions/fcrepo#PreferInboundReferencesInclude 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)
http://www.w3.org/ns/oa#PreferContainedDescriptions  Embed "child" resources in the returned representation

http://www.w3.org/ns/ldp#PreferContainment

Include/Exclude "ldp:contains" assertions to contained resources (enabled by default)

http://www.w3.org/ns/ldp#PreferMembership

Include/Exclude assertions to member resources established by the Direct and Indirect containers (enabled by default)

http://www.w3.org/ns/ldp#PreferMinimalContainer

Include/Exclude triples that would be present when the container is empty (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 -i -u fedoraAdmin:fedoraAdmin http://localhost:8080/rest/collection -H 'Prefer: return=representation;
include="http://fedora.info/definitions/fcrepo#PreferInboundReferences"; omit="http://www.w3.org/ns/ldp#PreferMembership
http://www.w3.org/ns/ldp#PreferContainment"'

Response:

Status: 200 OK

Headers:
Date: Sat, 13 Oct 2018 00:03:25 GMT
Set-Cookie: JSESSIONID=1pgwewtt9ucywx13hwo9mtjow;Path=/
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Set-Cookie: rememberMe=deleteMe; Path=/; Max-Age=0; Expires=Fri, 12-Oct-2018 00:03:25 GMT
ETag: W/"fee2096961dcdf1c475d394319fc34a53bec39ac"
Last-Modified: Fri, 12 Oct 2018 23:24:34 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#RDFSource>; rel="type"
Link: <http://www.w3.org/ns/ldp#BasicContainer>;rel="type"
Link: <http://localhost:8080/rest/collection>; rel="timegate"
Link: <http://localhost:8080/rest/collection>; rel="original"
Link: <http://localhost:8080/rest/collection/fcr:versions>; rel="timemap"
Link: <http://mementoweb.org/ns#OriginalResource>; rel="type"
Link: <http://mementoweb.org/ns#TimeGate>; rel="type"
Accept-External-Content-Handling: copy,redirect,proxy
Accept-Patch: application/sparql-update
Accept-Post: text/turtle,text/rdf+n3,text/n3,application/rdf+xml,application/n-triples,application/ld+json
Allow: MOVE,COPY,DELETE,POST,HEAD,GET,PUT,PATCH,OPTIONS
Link: <http://localhost:8080/rest/collection/fcr:acl>; rel="acl"
Preference-Applied: return=representation; include="http://fedora.info/definitions/fcrepo#PreferInboundReferences"; omit="http://www.w3.org/ns/ldp#PreferMembership http://www.w3.org/ns/ldp#PreferContainment"
Vary: Prefer
Vary: Accept
Vary: Range
Vary: Accept-Encoding
Vary: Accept-Language
Vary: Accept-Datetime
Content-Type: text/turtle;charset=utf-8
Content-Length: 1082
Server: Jetty(9.3.25.v20180904)

Body:
@prefix memento:  <http://mementoweb.org/ns#> .
@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix fedora:  <http://fedora.info/definitions/v4/repository#> .
@prefix ldp:  <http://www.w3.org/ns/ldp#> .

<http://localhost:8080/rest/collection>
        rdf:type               fedora:Container ;
        rdf:type               fedora:Resource ;
        rdf:type               ldp:BasicContainer ;
        fedora:lastModifiedBy  "fedoraAdmin" ;
        fedora:createdBy       "fedoraAdmin" ;
        fedora:created         "2018-10-12T23:24:34.286Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
        fedora:lastModified    "2018-10-12T23:24:34.286Z"^^<http://www.w3.org/2001/XMLSchema#dateTime> ;
        rdf:type               ldp:RDFSource ;
        rdf:type               ldp:Container ;
        fedora:writable        true .

<http://localhost:8080/rest/collection/fcr:versions>
        memento:original  <http://localhost:8080/rest/collection> .

<http://localhost:8080/rest/item>
        ldp:isMemberOfCollection  <http://localhost:8080/rest/collection> .


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 (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.

If the MIME type corresponds to a supported RDF format or SPARQL-Update, and you also provide a Link: <http://www.w3.org/ns/ldp#NonRDFSource>; rel="type" header. Then the contents will be stored as a binary resource with the provided MIME type as Content-type.

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

Supported RDF formats: text/turtle, text/rdf+n3, application/n3, text/n3, application/rdf+xml, application/n-triples, text/html, text/plain, application/ld+json

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.   Valid `Digest` algorithms/values are: sha, sha-256, or md5.

LINK With a value containing subfield rel= http://fedora.info/definitions/fcrepo#ExternalContent the client may provide binary content from an external path. See the external content documentation for details about syntax and handling options (note, this is disabled by default), and Example 7 for usage.


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: sha=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: sha=cb1a576f22e8e3e110611b616e3e2f5ce9bdb941, sha-256=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: sha=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


Example (7): Creating a new binary resource using proxied external content

curl -i -X POST -H"Link: <file:///path/to/picture.jpg>; rel=\"http://fedora.info/definitions/fcrepo#ExternalContent\"; handling=\"proxy\"; type=\"image/jpg\"" "http://localhost:8080/rest/parent/container"

Response:


Status: 201 Created
 
Headers:
ETag: "fe4e2bf389fe05dab6390564e40012d8d36eca19"
Location: http://localhost:8080/rest/parent/container/<autogenerated-ds-id>
 
Body:
http://localhost:8080/rest/parent/container/<autogenerated-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 binary content or triples associated with a resource with the binary content or triples provided in the request body.


For RDFSource resources

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


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' in POST above)

CONTENT-TYPE  (Optional) MIME type of the uploaded binary or RDF 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.

If the MIME type corresponds to a supported RDF format or SPARQL-Update, and you also provide a Link: <http://www.w3.org/ns/ldp#NonRDFSource>; rel="type" header. Then the contents will be stored as a binary resource with the provided MIME type as Content-type.

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

Supported RDF formats: text/turtle, text/rdf+n3, application/n3, text/n3, application/rdf+xml, application/n-triples, text/html, text/plain, application/ld+json

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.  Valid `Digest` algorithms/values are: sha, sha-256, or md5.

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.

LINK With a value containing subfield rel=http://fedora.info/definitions/fcrepo#ExternalContent the client may provide binary content from an external path . See the external content documentation for details about syntax and handling options (note, this is disabled by default), and Example 4 for usage.


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: sha=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"Link: <http://www.example.com/file>; rel=\"http://fedora.info/definitions/fcrepo#ExternalContent\"; handling=\"redirect\"; type=\"text/plain\"" "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 of a binary's description:

curl -X PATCH -H "Content-Type: application/sparql-update" --data-binary "@body.rdf" "http://localhost:8080/rest/binary/resource/to/binary/fcr:metadata"
 
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: The MOVE action has been deprecated and will be removed in a future version of Fedora.

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

NOTE: The COPY action has been deprecated and will be removed in a future version of Fedora.

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


Versioning

 

RESTful HTTP API - Versioning

Services

Backup and Restore

 

RESTful HTTP API - Backup and Restore

Request URI: /rest/fcr:backup

Methods: POST

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


You may include a backup directory in the body of the POST request. If you do not specify a directory, the backup will be stored in a temporary directory on the server (which will be returned in the response body). 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


Example 2: Including a destination directory

curl -X POST -d /path/to/backup/destination "http://localhost:8080/rest/fcr:backup"

 

Response:

Status: 200 OK

 

 Status:

200 OK

 


Request URI: /rest/fcr:restore

Methods: POST

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


Note: Restoring a backup replaces the repository content with the contents of the backup, so any data in the repository will be lost.


Example:  

curl -X POST -d "/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/binary

Methods: HEAD, GET

HEAD Request the fixity checksum for a given digest algorithm

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

 

Request Headers:

WANT-DIGEST  md5, sha, sha-256

 

Example:

curl -I -H "Want-Digest: sha-256" "http://localhost:8080/rest/path/to/some/binary"

Response (fixity success):

Status: 200 OK
 
Headers:
ETag: "51c5ed5fff4b6c79233cc7573a387902f7d171e7"
Last-Modified: Fri, 04 May 2018 18:14:47 GMT
Content-Type: image/jpeg
Accept-Ranges: bytes
Content-Disposition: attachment; filename="IMG_4023.JPG.jpg"; creation-date="Fri, 04 May 2018 18:14:47 GMT"; modification-date="Fri, 04 May 2018 18:14:47 GMT"; size=47021
Link: <http://www.w3.org/ns/ldp#Resource>;rel="type"
Link: <http://www.w3.org/ns/ldp#NonRDFSource>;rel="type"
Link: <http://localhost:8080/rest/examples/binary/fcr:acl>; rel="acl"
Link: <http://localhost:8080/rest/examples/binary/fcr:metadata>; rel="describedby"
Link: <http://localhost:8080/static/constraints/NonRDFSourceConstraints.rdf>; rel="http://www.w3.org/ns/ldp#constrainedBy"
Link: <http://localhost:8080/rest/examples/binary>; rel="timegate"
Link: <http://localhost:8080/rest/examples/binary>; rel="original"
Link: <http://localhost:8080/rest/examples/binary/fcr:versions>; rel="timemap"
Link: <http://mementoweb.org/ns#OriginalResource>; rel="type"
Link: <http://mementoweb.org/ns#TimeGate>; rel="type"
Accept-External-Content-Handling: copy,redirect,proxy
Allow: DELETE,HEAD,GET,PUT,OPTIONS
Digest: sha-256=08692ca74dc1e08c84f90feda5e64c72617be850a7c7adca88b03f6ccd3db406
Content-Length: 47021

Status:

200  OK

400 Bad request (the 'Want-Digest' request-header algorithm type is either invalid or unsupported)

404 Resource not found


NOTE: While the following feature is still available in Fedora 5, it is deprecated and may be removed in a future release.

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.

The /fcr:fixity endpoint is not part of the Fedora API Specification.  This feature is currently supported for backwards compatibility reasons and may be removed in a future release.

 

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


Note: Default Fixity Algorithm

When ingesting a binary resource, one or more checksums may be provided, see API reference (POST example 4, POST example 4b, PUT example 3). The supported algorithms are: SHA-1, SHA-256 and MD5. 

By default, the algorithm used by the /fcr:fixity endpoint is SHA-1. However, that may be changed - per resource - 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

 

 

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