{"id":143696,"date":"2021-12-10T10:00:41","date_gmt":"2021-12-10T10:00:41","guid":{"rendered":"https:\/\/devdays.lt\/?page_id=143696"},"modified":"2022-03-08T12:40:32","modified_gmt":"2022-03-08T12:40:32","slug":"andrzej-ludwikowski","status":"publish","type":"page","link":"https:\/\/devdays.lt\/andrzej-ludwikowski\/","title":{"rendered":"Andrzej Ludwikowski"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; disabled_on=&#8221;off|off|off&#8221; module_class=&#8221;sticky-juosta&#8221; _builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_padding=&#8221;0px||0px||true|&#8221; global_module=&#8221;142342&#8243; saved_tabs=&#8221;all&#8221;][et_pb_row module_id=&#8221;sticky&#8221; _builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#ff8000&#8243; width=&#8221;100%&#8221; max_width=&#8221;100%&#8221; custom_padding=&#8221;16px||16px||true|&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.9.0&#8243; _module_preset=&#8221;default&#8221;][et_pb_text _builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; text_font=&#8221;|600|||||||&#8221; text_text_color=&#8221;#FFFFFF&#8221; text_font_size=&#8221;20px&#8221; link_font=&#8221;|600|||||||&#8221; link_text_color=&#8221;#FFFFFF&#8221; link_font_size=&#8221;20px&#8221; link_font_size__hover_enabled=&#8221;on|desktop&#8221; link_font_size__hover=&#8221;21px&#8221;]<\/p>\n<p style=\"text-align: center;\">\u00a0<a href=\"\/tickets\/\">Regular prices are available until 17th of March.<\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; disabled_on=&#8221;on|on|off&#8221; admin_label=&#8221;Home&#8221; module_id=&#8221;Home&#8221; _builder_version=&#8221;4.0.6&#8243; background_enable_color=&#8221;off&#8221; use_background_color_gradient=&#8221;on&#8221; background_color_gradient_start=&#8221;rgba(10,30,96,0.5)&#8221; background_color_gradient_end=&#8221;rgba(10,30,96,0.5)&#8221; background_color_gradient_overlays_image=&#8221;on&#8221; background_image=&#8221;https:\/\/devdays.lt\/wp-content\/uploads\/2020\/01\/devd-201-1368&#215;855-1.jpg&#8221; custom_margin=&#8221;0px|0px|0px|0px&#8221; bottom_divider_style=&#8221;arrow2&#8243; bottom_divider_color=&#8221;#ffffff&#8221; bottom_divider_height=&#8221;50px&#8221; bottom_divider_flip=&#8221;vertical&#8221; global_module=&#8221;137943&#8243;][et_pb_fullwidth_header text_orientation=&#8221;center&#8221; background_overlay_color=&#8221;rgba(0,43,94,0.63)&#8221; _builder_version=&#8221;4.9.10&#8243; title_font=&#8221;|700|||||||&#8221; title_text_color=&#8221;#ffffff&#8221; title_font_size=&#8221;55px&#8221; background_color=&#8221;rgba(255, 255, 255, 0)&#8221; custom_button_one=&#8221;on&#8221; button_one_text_color=&#8221;#509af5&#8243; button_one_bg_color=&#8221;#ffffff&#8221; button_one_border_color=&#8221;#ffffff&#8221; button_one_font=&#8221;|600|||||||&#8221; button_one_use_icon=&#8221;off&#8221; custom_button_two=&#8221;on&#8221; button_two_text_color=&#8221;#509af5&#8243; button_two_border_color=&#8221;#509af5&#8243; button_two_font=&#8221;|600|||||||&#8221; button_two_icon_color=&#8221;#509af5&#8243; background_layout=&#8221;light&#8221; custom_margin=&#8221;|||&#8221; custom_padding=&#8221;50px||60px||false|false&#8221; button_one_border_color_hover=&#8221;#509af5&#8243; button_one_text_size__hover_enabled=&#8221;off&#8221; button_two_text_size__hover_enabled=&#8221;off&#8221; button_one_text_color__hover_enabled=&#8221;off&#8221; button_two_text_color__hover_enabled=&#8221;off&#8221; button_one_border_width__hover_enabled=&#8221;off&#8221; button_two_border_width__hover_enabled=&#8221;off&#8221; button_one_border_color__hover_enabled=&#8221;on&#8221; button_one_border_color__hover=&#8221;#509af5&#8243; button_two_border_color__hover_enabled=&#8221;off&#8221; button_one_border_radius__hover_enabled=&#8221;off&#8221; button_two_border_radius__hover_enabled=&#8221;off&#8221; 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width_tablet=&#8221;100%&#8221; width_phone=&#8221;&#8221; width_last_edited=&#8221;on|phone&#8221; max_width=&#8221;850px&#8221; custom_margin=&#8221;||15px||false|false&#8221; custom_padding=&#8221;10px|0px|10px|0px|true|true&#8221; border_radii=&#8221;off|3px|3px||&#8221; border_radii_tablet=&#8221;off|0px|0px||&#8221; border_radii_phone=&#8221;&#8221; border_radii_last_edited=&#8221;on|desktop&#8221; box_shadow_style=&#8221;preset1&#8243; locked=&#8221;off&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;3.29.3&#8243;][et_pb_image src=&#8221;https:\/\/devdays.lt\/wp-content\/uploads\/2021\/12\/devdays_speaker_Andrzej-Ludwikowski-1.png&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.9.10&#8243; max_width=&#8221;80%&#8221; custom_padding=&#8221;0px|||||&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;3.29.3&#8243;][et_pb_text _builder_version=&#8221;4.9.10&#8243; text_font=&#8221;|600|||||||&#8221; text_text_color=&#8221;#509af5&#8243; text_font_size=&#8221;30px&#8221; custom_margin=&#8221;30px||||false|false&#8221; custom_margin_tablet=&#8221;&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|phone&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; text_orientation_tablet=&#8221;&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|phone&#8221;]<\/p>\n<p>Andrzej Ludwikowski<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.9.10&#8243; text_text_color=&#8221;#424242&#8243; text_font_size=&#8221;16px&#8221; custom_padding=&#8221;||10px||false|false&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;50ms&#8221; text_orientation_tablet=&#8221;&#8221; text_orientation_phone=&#8221;center&#8221; text_orientation_last_edited=&#8221;on|phone&#8221;]<strong>Position:<\/strong> Solution Architect<\/p>\n<p><strong>Company:<\/strong> SoftwareMill<\/p>\n<p><strong>Country:<\/strong> Poland[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding_last_edited=&#8221;on|tablet&#8221; _builder_version=&#8221;4.0.6&#8243; background_color=&#8221;#ffffff&#8221; width_tablet=&#8221;100%&#8221; width_phone=&#8221;&#8221; width_last_edited=&#8221;on|tablet&#8221; max_width=&#8221;850px&#8221; max_width_tablet=&#8221;850px&#8221; max_width_phone=&#8221;&#8221; max_width_last_edited=&#8221;on|tablet&#8221; custom_padding=&#8221;30px|46px|30px|46px|false|true&#8221; custom_padding_tablet=&#8221;|30px||30px|true|true&#8221; custom_padding_phone=&#8221;|20px||20px|false|true&#8221; border_radii=&#8221;off|||3px|3px&#8221; box_shadow_style=&#8221;preset1&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.29.3&#8243;][et_pb_text _builder_version=&#8221;4.0.6&#8243; text_font=&#8221;|600|||||||&#8221; text_text_color=&#8221;#509bf5&#8243; text_font_size=&#8221;22px&#8221; header_font=&#8221;|600|||||||&#8221; header_text_align=&#8221;left&#8221; header_text_color=&#8221;#002258&#8243; custom_margin=&#8221;||5px|0px&#8221; custom_padding=&#8221;10px|||&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;100ms&#8221;]<\/p>\n<p>Biography<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.9.10&#8243; text_font=&#8221;||||||||&#8221; text_font_size=&#8221;15px&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;150ms&#8221;]<\/p>\n<p style=\"text-align: justify;\">Software Architect with over 11 years of experience in commercial software development. Conference speaker and open source contributor. Devotee of DDD, Event Sourcing, and Polyglot Persistence. System performance bottlenecks validator. Continuously chasing the dream of a perfect software architecture, which does not exist, but looking for it is the goal itself.<\/p>\n<p style=\"text-align: justify;\">Trainer at SoftwareMill (<a href=\"https:\/\/academy.softwaremill.com\/en\/\">https:\/\/academy.softwaremill.com\/en\/<\/a>).<\/p>\n<p>[\/et_pb_text][et_pb_social_media_follow use_icon_font_size=&#8221;on&#8221; icon_font_size=&#8221;15px&#8221; _builder_version=&#8221;4.9.10&#8243; text_orientation=&#8221;left&#8221; custom_margin=&#8221;|||&#8221; custom_padding=&#8221;|||&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;50ms&#8221;][et_pb_social_media_follow_network social_network=&#8221;twitter&#8221; url=&#8221;https:\/\/twitter.com\/aludwikowski&#8221; _builder_version=&#8221;4.9.10&#8243; background_color=&#8221;#00aced&#8221; follow_button=&#8221;off&#8221; url_new_window=&#8221;on&#8221;]twitter[\/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=&#8221;linkedin&#8221; url=&#8221;https:\/\/www.linkedin.com\/in\/andrzej-ludwikowski-6015ab71\/&#8221; _builder_version=&#8221;4.9.10&#8243; background_color=&#8221;#007bb6&#8243; follow_button=&#8221;off&#8221; url_new_window=&#8221;on&#8221;]linkedin[\/et_pb_social_media_follow_network][\/et_pb_social_media_follow][et_pb_text _builder_version=&#8221;4.0.6&#8243; text_font=&#8221;|600|||||||&#8221; text_text_color=&#8221;#021244&#8243; text_font_size=&#8221;20px&#8221; header_font=&#8221;|600|||||||&#8221; header_text_align=&#8221;left&#8221; header_text_color=&#8221;#002258&#8243; custom_margin=&#8221;||5px|0px&#8221; custom_padding=&#8221;10px|||&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;100ms&#8221;]<\/p>\n<p>Talk<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.9.10&#8243; text_font=&#8221;||||||||&#8221; text_text_color=&#8221;#ffffff&#8221; header_font=&#8221;|600|||||||&#8221; header_text_color=&#8221;#509bf5&#8243; max_width=&#8221;100%&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; custom_padding=&#8221;0px|||&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;100ms&#8221; saved_tabs=&#8221;all&#8221;]<\/p>\n<h1>Event Sourcing &#8211; What Could Possibly Go Wrong?<\/h1>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.9.10&#8243; text_font=&#8221;||||||||&#8221; text_text_color=&#8221;#666666&#8243; text_font_size=&#8221;15px&#8221; custom_padding=&#8221;0px||||false|false&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221;]<\/p>\n<p style=\"text-align: justify;\">Yet another presentation about Event Sourcing? Yes and no. Event Sourcing is a really great concept. Some could say it\u2019s a Holy Grail of software architecture. I might agree with that while remembering that everything comes with a price. This session is a summary of Andrzej&#8217;s experience with ES gathered while working on 5 different commercial products. Instead of theoretical aspects, he will focus on possible challenges with ES implementation. What could explode (very often with delayed ignition)? How and where to store events effectively? What are possible schema evolution solutions? How to achieve the highest level of scalability and live with eventual consistency? And many other interesting topics that you might face when experimenting with ES.<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.0.6&#8243; text_font=&#8221;|600|||||||&#8221; text_text_color=&#8221;#509bf5&#8243; text_font_size=&#8221;22px&#8221; header_font=&#8221;|600|||||||&#8221; header_text_align=&#8221;left&#8221; header_text_color=&#8221;#002258&#8243; custom_margin=&#8221;||5px|0px&#8221; custom_padding=&#8221;10px|||&#8221; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221;]<\/p>\n<p>Session Keywords<\/p>\n<p>[\/et_pb_text][et_pb_code _builder_version=&#8221;4.9.10&#8243; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1200ms&#8221; animation_delay=&#8221;50ms&#8221;]<\/p>\n<div class=\"flex-grid-session-keys\"><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"flex-grid-item-keyword\"><!-- [et_pb_line_break_holder] -->  <span class=\"tagas\">&#x1f511;<\/span> <!-- [et_pb_line_break_holder] -->Event Sourcing<!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->   <\/p>\n<div class=\"flex-grid-item-keyword\"><!-- [et_pb_line_break_holder] -->  <span class=\"tagas\">&#x1f511;<\/span> <!-- [et_pb_line_break_holder] -->Scaling<!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] -->  <\/p>\n<div class=\"flex-grid-item-keyword\"><!-- [et_pb_line_break_holder] -->  <span class=\"tagas\">&#x1f511;<\/span> <!-- [et_pb_line_break_holder] --> CQRS<!-- [et_pb_line_break_holder] -->  <\/div>\n<p><!-- [et_pb_line_break_holder] --><\/div>\n<p>[\/et_pb_code][et_pb_button button_url=&#8221;\/tickets\/&#8221; button_text=&#8221;Get Your Ticket&#8221; button_alignment=&#8221;center&#8221; button_alignment_tablet=&#8221;&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.9.10&#8243; custom_button=&#8221;on&#8221; button_text_size=&#8221;17px&#8221; button_text_color=&#8221;#ffffff&#8221; button_bg_color=&#8221;#509af5&#8243; button_border_width=&#8221;0px&#8221; button_border_color=&#8221;#509af5&#8243; button_letter_spacing=&#8221;1px&#8221; button_font=&#8221;Open Sans|||on|||||&#8221; button_icon=&#8221;%%24%%&#8221; custom_margin=&#8221;||0px||false|false&#8221; custom_padding=&#8221;6px||6px||true|false&#8221; hover_enabled=&#8221;0&#8243; box_shadow_style=&#8221;preset3&#8243; button_text_size__hover_enabled=&#8221;off&#8221; button_one_text_size__hover_enabled=&#8221;off&#8221; button_two_text_size__hover_enabled=&#8221;off&#8221; button_text_color__hover_enabled=&#8221;off&#8221; button_one_text_color__hover_enabled=&#8221;off&#8221; button_two_text_color__hover_enabled=&#8221;off&#8221; button_border_width__hover_enabled=&#8221;off&#8221; button_one_border_width__hover_enabled=&#8221;off&#8221; button_two_border_width__hover_enabled=&#8221;off&#8221; button_border_color__hover_enabled=&#8221;off&#8221; button_one_border_color__hover_enabled=&#8221;off&#8221; button_two_border_color__hover_enabled=&#8221;off&#8221; button_border_radius__hover_enabled=&#8221;off&#8221; button_one_border_radius__hover_enabled=&#8221;off&#8221; button_two_border_radius__hover_enabled=&#8221;off&#8221; button_letter_spacing__hover_enabled=&#8221;off&#8221; button_one_letter_spacing__hover_enabled=&#8221;off&#8221; button_two_letter_spacing__hover_enabled=&#8221;off&#8221; button_bg_color__hover_enabled=&#8221;off&#8221; button_one_bg_color__hover_enabled=&#8221;off&#8221; button_two_bg_color__hover_enabled=&#8221;off&#8221; locked=&#8221;off&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.0.6&#8243; custom_padding=&#8221;50px||||false|false&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.0.6&#8243;][et_pb_text _builder_version=&#8221;4.4.2&#8243; text_font=&#8221;|700|||||||&#8221; text_text_color=&#8221;#666666&#8243; animation_style=&#8221;fade&#8221; animation_duration=&#8221;1400ms&#8221; animation_delay=&#8221;50ms&#8221; global_module=&#8221;128838&#8243;]<\/p>\n<p style=\"cursor: pointer; text-align: center;\" onclick=\"goBack()\">\u00ab Back<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0Regular prices are available until 17th of March.DevDays Europe 2022Andrzej LudwikowskiPosition: Solution Architect Company: SoftwareMill Country: PolandBiographySoftware Architect with over 11 years of experience in commercial software development. Conference speaker and open source contributor. Devotee of DDD, Event Sourcing, and Polyglot Persistence. System performance bottlenecks validator. Continuously chasing the dream of a perfect software architecture, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Andrzej Ludwikowski - DevDays - Software Development Conference<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/devdays.lt\/andrzej-ludwikowski\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Andrzej Ludwikowski - DevDays - Software Development Conference\" \/>\n<meta property=\"og:description\" content=\"\u00a0Regular prices are available until 17th of March.DevDays Europe 2022Andrzej LudwikowskiPosition: Solution Architect Company: SoftwareMill Country: PolandBiographySoftware Architect with over 11 years of experience in commercial software development. Conference speaker and open source contributor. Devotee of DDD, Event Sourcing, and Polyglot Persistence. System performance bottlenecks validator. 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Conference speaker and open source contributor. Devotee of DDD, Event Sourcing, and Polyglot Persistence. System performance bottlenecks validator. Continuously chasing the dream of a perfect software architecture, [&hellip;]","og_url":"https:\/\/devdays.lt\/andrzej-ludwikowski\/","og_site_name":"DevDays - Software Development Conference","article_modified_time":"2022-03-08T12:40:32+00:00","og_image":[{"width":1200,"height":628,"url":"https:\/\/devdays.lt\/wp-content\/uploads\/2021\/11\/Win-Ticket-reklaminis-EU-3.png","type":"image\/png"}],"author":"admin","twitter_card":"summary_large_image","twitter_site":"@DevDaysEurope","twitter_misc":{"Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebSite","@id":"https:\/\/devdays.lt\/#website","url":"https:\/\/devdays.lt\/","name":"DevDays - Software Development Conference","description":"DevDays Europe 2022","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/devdays.lt\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/devdays.lt\/andrzej-ludwikowski\/#webpage","url":"https:\/\/devdays.lt\/andrzej-ludwikowski\/","name":"Andrzej Ludwikowski - DevDays - Software Development Conference","isPartOf":{"@id":"https:\/\/devdays.lt\/#website"},"datePublished":"2021-12-10T10:00:41+00:00","dateModified":"2022-03-08T12:40:32+00:00","breadcrumb":{"@id":"https:\/\/devdays.lt\/andrzej-ludwikowski\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/devdays.lt\/andrzej-ludwikowski\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/devdays.lt\/andrzej-ludwikowski\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/devdays.lt\/"},{"@type":"ListItem","position":2,"name":"Andrzej Ludwikowski"}]}]}},"_links":{"self":[{"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/pages\/143696"}],"collection":[{"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/comments?post=143696"}],"version-history":[{"count":4,"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/pages\/143696\/revisions"}],"predecessor-version":[{"id":144215,"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/pages\/143696\/revisions\/144215"}],"wp:attachment":[{"href":"https:\/\/devdays.lt\/wp-json\/wp\/v2\/media?parent=143696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}