links

API endpoint base: https://pirca.arvadosapi.com/arvados/v1/links

Object type: o0j2j

Example UUID: zzzzz-o0j2j-0123456789abcde

Resource

Links are an extensible way to describe relationships between Arvados objects and metadata about individual objects.

Each link has, in addition to the Common resource fields:

Attribute	Type	Description
head_uuid	string	The object being described or acted on.
tail_uuid	string	The origin or actor in the description or action (may be null).
link_class	string	Type of link
name	string	Primary value of the link.
properties	hash	Additional information, expressed as a key→value hash. Key: string. Value: string, number, array, or hash. May be used in queries using subproperty filters

Link classes

Some classes are pre-defined by convention and have standard meanings attached to names.

permission

See permission links section of the permission model.

tag

A tag link describes an object using an unparsed plain text string. Tags can be used to annotate objects that are not editable, like collections and objects shared as read-only.

tail_type→head_type	name→head_uuid {properties}
→Collection	tag name → collection uuid
→Job	tag name → job uuid

Methods

See Common resource methods for more information about create, delete, get, list, and update.

Required arguments are displayed in green.

create

Create a new Link.

Arguments:

Argument	Type	Description	Location	Example
link	object		query

delete

Delete an existing Link.

Arguments:

Argument	Type	Description	Location	Example
uuid	string	The UUID of the Link in question.	path

get

Gets a Link’s metadata by UUID.

Arguments:

Argument	Type	Description	Location	Example
uuid	string	The UUID of the Link in question.	path

list

List links.

See common resource list method.

update

Update attributes of an existing Link.

Arguments:

Argument	Type	Description	Location	Example
uuid	string	The UUID of the Link in question.	path
link	object		query

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