9 API endpoint base: @https://{{ site.arvados_api_host }}/arvados/v1/links@
13 Example UUID: @zzzzz-o0j2j-0123456789abcde@
17 Links are an extensible way to describe relationships between Arvados objects and metadata about individual objects.
19 Each link has, in addition to the "Common resource fields":{{site.baseurl}}/api/resources.html:
21 table(table table-bordered table-condensed).
22 |_. Attribute|_. Type|_. Description|
23 |head_uuid|string|The object being described or acted on.|
24 |tail_uuid|string|The origin or actor in the description or action (may be null).|
25 |link_class|string|Type of link|
26 |name|string|Primary value of the link.|
27 |properties|hash|Additional information, expressed as a key→value hash. Key: string. Value: string, number, array, or hash.|
31 Some classes are pre-defined by convention and have standard meanings attached to names.
35 See "permission links":{{site.baseurl}}/api/permission-model.html#links section of the permission model.
39 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.
41 table(table table-bordered table-condensed).
42 |_. tail_type→head_type|_. name→head_uuid {properties}|
43 |→Collection | _tag name_ → _collection uuid_|
44 |→Job | _tag name_ → _job uuid_|
48 See "Common resource methods":{{site.baseurl}}/api/methods.html for more information about @create@, @delete@, @get@, @list@, and @update@.
50 Required arguments are displayed in %{background:#ccffcc}green%.
58 table(table table-bordered table-condensed).
59 |_. Argument |_. Type |_. Description |_. Location |_. Example |
64 Delete an existing Link.
68 table(table table-bordered table-condensed).
69 |_. Argument |_. Type |_. Description |_. Location |_. Example |
70 {background:#ccffcc}.|uuid|string|The UUID of the Link in question.|path||
74 Gets a Link's metadata by UUID.
78 table(table table-bordered table-condensed).
79 |_. Argument |_. Type |_. Description |_. Location |_. Example |
80 {background:#ccffcc}.|uuid|string|The UUID of the Link in question.|path||
86 See "common resource list method.":{{site.baseurl}}/api/methods.html#index
90 Update attributes of an existing Link.
94 table(table table-bordered table-condensed).
95 |_. Argument |_. Type |_. Description |_. Location |_. Example |
96 {background:#ccffcc}.|uuid|string|The UUID of the Link in question.|path||