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A client for server sent events


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HEADER

FOOTER

EventSource::Client


A simple handler to provide Server Sent Events from a Raku application


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second"]},{"type":"block","id":"6qdjrKt0uvLW3K9X50Ifw","margin":"","name":"code","config":[{"name":"lang","value":"raku","type":"string"}],"location":{"start":{"line":11,"column":1,"offset":263},"end":{"line":22,"column":4,"offset":535}},"content":[{"type":"verbatim","value":"use EventSource::Server;\nuse HTTP::Server::Tiny;\n\nmy $supply = Supply.interval(1).map( { EventSource::Server::Event.new(type => 'tick', data => DateTime.now.Str) } );\n\nmy &es = EventSource::Server.new(:$supply);\n\n\n\nHTTP::Server::Tiny.new(port => 7798).run(&es)"}]},{"type":"para","id":"3RU5ypeW7Hp6AJIQQsRCY","margin":"","location":{"start":{"line":24,"column":1,"offset":537},"end":{"line":24,"column":14,"offset":550}},"text":"text","content":["Or using Cro:"]},{"type":"block","id":"1vcfZ2JGu-GNXb2L5qyCW","margin":"","name":"code","config":[{"name":"lang","value":"raku","type":"string"}],"location":{"start":{"line":26,"column":1,"offset":552},"end":{"line":47,"column":4,"offset":1059}},"content":[{"type":"verbatim","value":"use EventSource::Server;\n\nuse Cro::HTTP::Router;\nuse Cro::HTTP::Server;\n\nmy $supply = Supply.interval(1).map( { EventSource::Server::Event.new(type => 'tick', data => DateTime.now.Str) } );\n\nmy $es = EventSource::Server.new(:$supply);\n\nmy $app = route {\n    get -> {\n        content 'text/event-stream', $es.out-supply;\n    }\n};\n\nmy Cro::Service $tick = Cro::HTTP::Server.new(:host<localhost>, :port<7798>, application => $app);\n\n$tick.start;\n\nreact whenever signal(SIGINT) { $tick.stop; exit; }"}]},{"type":"para","id":"gyTDbTXjAvzdVEXV3-2tF","margin":"","location":{"start":{"line":49,"column":1,"offset":1061},"end":{"line":49,"column":47,"offset":1107}},"text":"text","content":["And in some Javascript program somewhere else:"]},{"type":"block","id":"rP35nWXNbW2R9K43nzTJv","margin":"","name":"code","config":[{"name":"lang","value":"javascript","type":"string"}],"location":{"start":{"line":51,"column":1,"offset":1109},"end":{"line":63,"column":4,"offset":1302}},"content":[{"type":"verbatim","value":"var EventSource = require('eventsource')\n\nvar v = new EventSource(' http://127.0.0.1:7798')\n\nv.addEventListener(\n  'tick',\n  function (e) {\n    console.info(e)\n  },\n  false,\n)"}]},{"type":"para","id":"28HscvC44VmadXZsmZl7X","margin":"","location":{"start":{"line":65,"column":1,"offset":1304},"end":{"line":65,"column":66,"offset":1369}},"text":"text","content":["See also the ",{"meta":"examples","type":"fcode","name":"L","content":["examples directory"]}," in this distribution."]},{"type":"block","id":"IJCCnRPx-Mn77I0cX_HhQ","margin":"","level":2,"name":"head","location":{"start":{"line":67,"column":1,"offset":1371},"end":{"line":67,"column":15,"offset":1385}},"content":["Description"]},{"type":"para","id":"_qu_CSywLr7Zt8lnN7ZMd","margin":"","location":{"start":{"line":69,"column":1,"offset":1387},"end":{"line":70,"column":24,"offset":1530}},"text":"text","content":["This provides a simple mechanism for creating a source of ",{"meta":"https://www.w3.org/TR/eventsource/","type":"fcode","name":"L","content":["Server Sent Events"]}," in a\nweb server application."]},{"type":"para","id":"1gmQ8735ubQsg1e-Qzwqg","margin":"","location":{"start":{"line":72,"column":1,"offset":1532},"end":{"line":75,"column":16,"offset":1758}},"text":"text","content":["The EventSource interface is implemented by most modern web browsers and\nprovides a lightweight alternative to Websockets for those applications\nwhere only a uni-directional message is required (for example for\nnotifications,)"]},{"type":"block","id":"WEDW2fJvE9Il5s9pcBwKP","margin":"","level":2,"name":"head","location":{"start":{"line":77,"column":1,"offset":1760},"end":{"line":77,"column":16,"offset":1775}},"content":["Installation"]},{"type":"para","id":"NVzDDKWq-OAYmDMaWq7W1","margin":"","location":{"start":{"line":79,"column":1,"offset":1777},"end":{"line":79,"column":118,"offset":1894}},"text":"text","content":["Assuming you have a working installation of Rakudo with ",{"type":"fcode","name":"C","content":["zef"]}," installed then you should be able to install this with:"]},{"type":"block","id":"PG34NJ22vswQgZQWfz-MR","margin":"","name":"code","config":[],"location":{"start":{"line":81,"column":1,"offset":1896},"end":{"line":81,"column":36,"offset":1931}},"content":[{"type":"verbatim","value":"zef install EventSource::Server"}]},{"type":"para","id":"5HAXHMIq78KgJjWXd2lnV","margin":"","location":{"start":{"line":83,"column":1,"offset":1933},"end":{"line":84,"column":37,"offset":2043}},"text":"text","content":["If you want to install this from a local copy substitute the distribution\nname for the path to the local copy."]},{"type":"block","id":"HQsVjM1e2oSPVIw9KoJU-","margin":"","level":2,"name":"head","location":{"start":{"line":86,"column":1,"offset":2045},"end":{"line":86,"column":11,"offset":2055}},"content":["Support"]},{"type":"para","id":"hfyae9qRIu9giNK9DtQqp","margin":"","location":{"start":{"line":88,"column":1,"offset":2057},"end":{"line":93,"column":11,"offset":2427}},"text":"text","content":["This is quite a simple module but is fairly difficult to test well without\nbringing in a vast array of large and otherwise un-needed modules, so\nI won't be surprised there are bugs, similarly whilst I have tested for\ninteroperability with the Javascript hosts that I have available to me\nI haven't tested against every known host that provides the EventSource\ninterface."]},{"type":"para","id":"b0F5NXo2y7O6SAtbkBTnd","margin":"","location":{"start":{"line":95,"column":1,"offset":2429},"end":{"line":96,"column":59,"offset":2556}},"text":"text","content":["So please feel free to report any problems (or make suggestions,) to\n",{"meta":"https://github.com/jonathanstowe/EventSource-Server/issues","type":"fcode","name":"L","content":["https://github.com/jonathanstowe/EventSource-Server/issues"]}]},{"type":"block","id":"OE9DyY9kjFHdv3_jv8JcO","margin":"","level":2,"name":"head","location":{"start":{"line":98,"column":1,"offset":2558},"end":{"line":98,"column":25,"offset":2582}},"content":["Copyright and Licence"]},{"type":"para","id":"or5tMiBy404N72SSdrW9G","margin":"","location":{"start":{"line":100,"column":1,"offset":2584},"end":{"line":101,"column":14,"offset":2666}},"text":"text","content":["This is free software, please see the ",{"meta":"LICENCE","type":"fcode","name":"L","content":["LICENCE"]}," file in the\ndistribution."]},{"type":"para","id":"m8_zrHuRixyZ-se_wMRh2","margin":"","location":{"start":{"line":103,"column":1,"offset":2668},"end":{"line":103,"column":29,"offset":2696}},"text":"text","content":["© Jonathan Stowe 2017 - 2021"]}]},"publishUrl":"/mods/zef/EventSource::Server/EventSource-Server-0.0.11/README.md","pluginsData":{"moduleInfo":{"meta":{"api":"1.0","auth":"zef:jonathanstowe","authors":["Jonathan Stowe <jns+gh@gellyfish.co.uk>"],"build-depends":[],"depends":[],"description":"A simple handler to provide Server Sent Events from a Raku 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EventSource::Server


Awesome event emitter.  Threaded, or not.


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Can use supplies or channels and is basically just some syntax sugar on already implemented Perl6 features."]},{"type":"block","id":"GAliZDiVlO1_pFrpQ9zJH","margin":"","level":2,"name":"head","location":{"start":{"line":5,"column":1,"offset":181},"end":{"line":5,"column":10,"offset":190}},"content":["Syntax"]},{"type":"para","id":"ZG3jqsuo3S2CfKnk-zriA","margin":"","location":{"start":{"line":7,"column":1,"offset":192},"end":{"line":7,"column":29,"offset":220}},"text":"text","content":["Out of the box functionality"]},{"type":"block","id":"ELVzDamR6wefrW35QxoOF","margin":"","level":3,"name":"head","location":{"start":{"line":9,"column":1,"offset":222},"end":{"line":9,"column":18,"offset":239}},"content":["Single thread"]},{"type":"para","id":"QahYnJZaAsk_7OZPKqpVG","margin":"","location":{"start":{"line":11,"column":1,"offset":241},"end":{"line":11,"column":49,"offset":289}},"text":"text","content":[{"type":"fcode","name":"C","content":["Event::Emitter"]}," uses a ",{"type":"fcode","name":"C","content":["Supply"]}," in the back end"]},{"type":"block","id":"YgdDE7DbinBB1-zFWg2O5","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":13,"column":1,"offset":291},"end":{"line":41,"column":4,"offset":981}},"content":[{"type":"verbatim","value":"use Event::Emitter;\n\nmy Event::Emitter $e .= new;\n\n# hey, i work with regex\n$e.on(/^^ \"Some regex\"/, -> $data {\n  qw<do something with your $data here>;\n});\n\n# your own callables to match events\nmy $event = { 'some flag' => 3, 'some other flag' => 5 };\n$e.on({ $event<some flag> // Nil eq $*STATE }, -> $data {\n  qw<do something with your $data here>;\n});\n\n# plain ol strings, just like mom used to make\n$e.on('some str', -> $data {\n  qw<do something with your $data here>;\n});\n\n# runs the some str listener\n$e.emit('some str', @(1 .. 5));\n\n# runs the regex because it matches the regex;\n$e.emit('Some regex', { conn => IO::Socket::INET });\n\n$e.emit({ 'some flag' => 5 }, { });"}]},{"type":"block","id":"uJNlGIPX7Sf9TIrc3w_ix","margin":"","level":3,"name":"head","location":{"start":{"line":43,"column":1,"offset":983},"end":{"line":43,"column":11,"offset":993}},"content":["Thread"]},{"type":"para","id":"r_OpzqEBePYwHjyoyMUa5","margin":"","location":{"start":{"line":45,"column":1,"offset":995},"end":{"line":45,"column":50,"offset":1044}},"text":"text","content":[{"type":"fcode","name":"C","content":["Event::Emitter"]}," uses a ",{"type":"fcode","name":"C","content":["Channel"]}," in the back end"]},{"type":"block","id":"FZAVso6puPvr2sX0Zr1oW","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":47,"column":1,"offset":1046},"end":{"line":51,"column":4,"offset":1119}},"content":[{"type":"verbatim","value":"use Event::Emitter;\n\nmy Event::Emitter $e .= new(:threaded);"}]},{"type":"block","id":"BWjDZW9x3pD1sMm3HdzZE","margin":"","level":2,"name":"head","location":{"start":{"line":53,"column":1,"offset":1121},"end":{"line":53,"column":35,"offset":1155}},"content":["Rolling your own Event::Emitter"]},{"type":"para","id":"m9CQhdP8qWtByj9S8msk4","margin":"","location":{"start":{"line":55,"column":1,"offset":1157},"end":{"line":55,"column":58,"offset":1214}},"text":"text","content":["Want to make your own receiver/emitter? Here's a template"]},{"type":"block","id":"pWknX7mgKEH2q8aTXUVMa","margin":"","level":3,"name":"head","location":{"start":{"line":57,"column":1,"offset":1216},"end":{"line":57,"column":23,"offset":1238}},"content":["Your new .pm6 file"]},{"type":"block","id":"J8L2TqEagirCSDSA_0YzO","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":59,"column":1,"offset":1240},"end":{"line":71,"column":4,"offset":1462}},"content":[{"type":"verbatim","value":"use Event::Emitter::Role::Handler;\n\nunit class My::Own::Emitter does Event::Emitter::Role::Handler;\n\nmethod on($event, $data) {\n  qw<do your thing>;\n}\n\nmethod emit($event, $data?) {\n  qw<do your thing here>;\n}"}]},{"type":"block","id":"N5XWvHrHoxE-WVWKBU72X","margin":"","level":3,"name":"head","location":{"start":{"line":73,"column":1,"offset":1464},"end":{"line":73,"column":23,"offset":1486}},"content":["Later in your .pl6"]},{"type":"block","id":"js_NEvfVmOj7UcIUUulq4","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":75,"column":1,"offset":1488},"end":{"line":80,"column":4,"offset":1576}},"content":[{"type":"verbatim","value":"use Event::Emitter;\n\n\nmy $e = Event::Emitter.new(:class<My::Own::Emitter>);"}]},{"type":"block","id":"8OG618Bu7BR3UCAJp7qNh","margin":"","level":1,"name":"head","location":{"start":{"line":82,"column":1,"offset":1578},"end":{"line":82,"column":10,"offset":1587}},"content":["License"]},{"type":"para","id":"Rlpy4_75NZTtzZ1HNj-Ex","margin":"","location":{"start":{"line":84,"column":1,"offset":1589},"end":{"line":84,"column":14,"offset":1602}},"text":"text","content":["Free for all."]}]},"publishUrl":"/mods/zef/Event::Emitter/README.md","pluginsData":{"moduleInfo":{"meta":{"auth":"zef:tony-o","authors":["Tony O'Dell"],"depends":[],"description":"Awesome event emitter.  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Can use supplies or channels and is basically just some syntax sugar on already implemented Perl6 features."]},{"type":"block","id":"GAliZDiVlO1_pFrpQ9zJH","margin":"","level":2,"name":"head","location":{"start":{"line":5,"column":1,"offset":181},"end":{"line":5,"column":10,"offset":190}},"content":["Syntax"]},{"type":"para","id":"ZG3jqsuo3S2CfKnk-zriA","margin":"","location":{"start":{"line":7,"column":1,"offset":192},"end":{"line":7,"column":29,"offset":220}},"text":"text","content":["Out of the box functionality"]},{"type":"block","id":"ELVzDamR6wefrW35QxoOF","margin":"","level":3,"name":"head","location":{"start":{"line":9,"column":1,"offset":222},"end":{"line":9,"column":18,"offset":239}},"content":["Single thread"]},{"type":"para","id":"QahYnJZaAsk_7OZPKqpVG","margin":"","location":{"start":{"line":11,"column":1,"offset":241},"end":{"line":11,"column":49,"offset":289}},"text":"text","content":[{"type":"fcode","name":"C","content":["Event::Emitter"]}," uses a ",{"type":"fcode","name":"C","content":["Supply"]}," in the back end"]},{"type":"block","id":"YgdDE7DbinBB1-zFWg2O5","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":13,"column":1,"offset":291},"end":{"line":41,"column":4,"offset":981}},"content":[{"type":"verbatim","value":"use Event::Emitter;\n\nmy Event::Emitter $e .= new;\n\n# hey, i work with regex\n$e.on(/^^ \"Some regex\"/, -> $data {\n  qw<do something with your $data here>;\n});\n\n# your own callables to match events\nmy $event = { 'some flag' => 3, 'some other flag' => 5 };\n$e.on({ $event<some flag> // Nil eq $*STATE }, -> $data {\n  qw<do something with your $data here>;\n});\n\n# plain ol strings, just like mom used to make\n$e.on('some str', -> $data {\n  qw<do something with your $data here>;\n});\n\n# runs the some str listener\n$e.emit('some str', @(1 .. 5));\n\n# runs the regex because it matches the regex;\n$e.emit('Some regex', { conn => IO::Socket::INET });\n\n$e.emit({ 'some flag' => 5 }, { });"}]},{"type":"block","id":"uJNlGIPX7Sf9TIrc3w_ix","margin":"","level":3,"name":"head","location":{"start":{"line":43,"column":1,"offset":983},"end":{"line":43,"column":11,"offset":993}},"content":["Thread"]},{"type":"para","id":"r_OpzqEBePYwHjyoyMUa5","margin":"","location":{"start":{"line":45,"column":1,"offset":995},"end":{"line":45,"column":50,"offset":1044}},"text":"text","content":[{"type":"fcode","name":"C","content":["Event::Emitter"]}," uses a ",{"type":"fcode","name":"C","content":["Channel"]}," in the back end"]},{"type":"block","id":"FZAVso6puPvr2sX0Zr1oW","margin":"","name":"code","config":[{"name":"lang","value":"perl6","type":"string"}],"location":{"start":{"line":47,"column":1,"offset":1046},"end":{"line":51,"column":4,"offset":1119}},"content":[{"type":"verbatim","value":"use Event::Emitter;\n\nmy Event::Emitter $e .= new(:threaded);"}]},{"type":"block","id":"BWjDZW9x3pD1sMm3HdzZE","margin":"","level":2,"name":"head","location":{"start":{"line":53,"column":1,"offset":1121},"end":{"line":53,"column":35,"offset":1155}},"content":["Rolling your own Event::Emitter"]},{"type":"para","id":"m9CQhdP8qWtByj9S8msk4","margin":"","location":{"start":{"line":55,"column":1,"offset":1157},"end":{"line":55,"column":58,"offset":1214}},"text":"text","content":["Want to make your own receiver/emitter? 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Threaded, or not.","dist":"Event::Emitter:ver<1.0.2>:auth<zef:tony-o>","name":"Event::Emitter","path":"E/VE/EVENT_EMITTER/ad735f04b2123519606ead2a115f25821382c979.tar.gz","perl":"6.*","provides":{"Event::Emitter":"lib/Event/Emitter.pm6","Event::Emitter::Channel":"lib/Event/Emitter/Channel.pm6","Event::Emitter::Role::Handler":"lib/Event/Emitter/Role/Handler.pm6","Event::Emitter::Role::Node":"lib/Event/Emitter/Role/Node.pm6","Event::Emitter::Role::Typed":"lib/Event/Emitter/Role/Typed.pm6","Event::Emitter::Supply":"lib/Event/Emitter/Supply.pm6"},"source-url":"git://github.com/tony-o/perl6-event-emitter.git","support":{"bugtracker":"https://github.com/tony-o/perl6-event-emitter/issues","source":"git://github.com/tony-o/perl6-event-emitter.git"},"version":"1.0.2"},"files":[{"file":"work_mods/zef/Event::Emitter/README.md","publishUrl":"/mods/zef/Event::Emitter/README.md"},{"file":"work_mods/zef/Event::Emitter/lib/Event/Emitter/Role/Node.pm6","publishUrl":"/mods/zef/Event::Emitter/lib/Event/Emitter/Role/Node.pm6"},{"file":"work_mods/zef/Event::Emitter/lib/Event/Emitter/Role/Typed.pm6","publishUrl":"/mods/zef/Event::Emitter/lib/Event/Emitter/Role/Typed.pm6"}],"src":"zef","url":"/mods/zef/Event::Emitter"}}}
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Event::Emitter


The Raku Knowledge Base


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    =item2 L<Learn Raku in Y minutes|https://learnxinyminutes.com/docs/raku/>
    =item2 L<Golfing |https://github.com/AlexDaniel/raku-golf-cheatsheet>
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    =item2 L<Rakudo Weekly|https://rakudoweekly.blog/>
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    =item2 L<Raku Advent Calendar|https://raku-advent.blog/>
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EventSource::Client

EventSource::Client

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Synopsis

Description

Installation

Support

Copyright & Licence

EventSource::Client v0.0.4

Authors

License

Dependencies

Test Dependencies

Provides

Documentation