{"id":13537,"date":"2024-10-15T14:36:59","date_gmt":"2024-10-15T18:36:59","guid":{"rendered":"https:\/\/www.ogc.org\/?post_type=standards&#038;p=13537"},"modified":"2025-09-16T10:10:39","modified_gmt":"2025-09-16T10:10:39","slug":"sensor-things-api-extension-2","status":"publish","type":"standards","link":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/standards\/sensor-things-api-extension-2\/","title":{"rendered":"OGC API &#8211; EDR &#8211; Part 2: Publish-Subscribe Workflow"},"content":{"rendered":"\n\n<h1 class=\"wp-block-heading has-2-xl-font-size\"><strong>OGC API &#8211; Environmental Data Retrieval &#8211; Part 2: Publish-Subscribe Workflow<\/strong><\/h1>\n\n\n\n<p>This standard defines building blocks that can be assembled to implement Publish-Subscribe workflows (discovery, topic structure, encoding) as part of OGC API\u2009\u2014\u2009Environmental Data Retrieval\u2009\u2014\u2009Part 1: Core. A topic structure is the structured information that a publisher makes available to allow subscribers to choose information of interest to them.<\/p>\n\n\n\n\n\n\n<section class=\"wp-block-group pattern-single-column is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-blue-color has-text-color has-link-color has-2-xl-font-size wp-elements-c81bb6ca8df4a9fb76581a9b45c4fe6b\"><strong>Overview<\/strong><\/h2>\n\n\n\n<p>OGC API Standards specify Web based capabilities that are typically based on polling for collection resource updates (new features, records, items, coverages, maps, etc.). Depending on a collection\u2019s temporal resolution or frequency of updates, an event-driven \/ Publish-Subscribe architecture provides a timely, efficient and low latency approach for the delivery of data updates or notifications of updates. The OGC API\u2009\u2014\u2009Environmental Data Retrieval\u2009\u2014\u2009Part 2: Publish-Subscribe Workflow Standard provides recommendations on applying Publish-Subscribe architectural patterns to implementations of one or more OGC APIs.<\/p>\n<\/div>\n<\/div>\n<\/section>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview OGC API Standards specify Web based capabilities that are typically based on polling for collection resource updates (new features, records, items, coverages, maps, etc.). Depending on a collection\u2019s temporal resolution or frequency of updates, an event-driven \/ Publish-Subscribe architecture provides a timely, efficient and low latency approach for the delivery of data updates or [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19213,"parent":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"standards-tag":[617],"class_list":["post-13537","standards","type-standards","status-publish","format-standard","has-post-thumbnail","hentry","standards-tag-sensor-things-api-extension"],"acf":[],"_links":{"self":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards"}],"about":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/types\/standards"}],"author":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/comments?post=13537"}],"version-history":[{"count":2,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13537\/revisions"}],"predecessor-version":[{"id":19215,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13537\/revisions\/19215"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/media\/19213"}],"wp:attachment":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/media?parent=13537"}],"wp:term":[{"taxonomy":"standards-tag","embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards-tag?post=13537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}