55 lines
1.6 KiB
PHP
55 lines
1.6 KiB
PHP
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<?php
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/**
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* This example demonstrates upgrading a ProtocolStream to use a different protocol
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* than initially configured with.
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*
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* Run the example and try entering some things such as:
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* hello world
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* foo "bar baz"
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* and finally:
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* upgrade
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* After the upgrade command, it will only respond to JSON data:
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* {"foo":"bar"}
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*
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*/
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use NoccyLabs\React\Protocol\Json\JsonProtocol;
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use NoccyLabs\React\Protocol\Line\LineProtocol;
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use NoccyLabs\React\Protocol\ProtocolStream;
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use React\Stream\CompositeStream;
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use React\Stream\ReadableResourceStream;
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use React\Stream\WritableResourceStream;
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require_once __DIR__."/../vendor/autoload.php";
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$stdin = new ReadableResourceStream(STDIN);
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$stdout = new WritableResourceStream(STDOUT);
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$stdio = new CompositeStream($stdin, $stdout);
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$textProto = new LineProtocol(
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beforePackCb: function (array $msg): array {
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$out = [];
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$cmd = array_shift($msg);
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$out = [ $cmd, ...array_map("json_encode", $msg) ];
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return $out;
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}
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);
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$jsonProto = new JsonProtocol(
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frameSeparator: "\n"
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);
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$stream = new ProtocolStream($stdio, $textProto);
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$stream->on("message", function (array $msg) use ($stream, $jsonProto) {
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if (array_is_list($msg)) {
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if (reset($msg) == 'upgrade') {
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$stream->send([ 'OK', 'Upgrading to JSON protocol']);
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$stream->upgrade($jsonProto);
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$stream->send([ 'info' => 'Now using JSON proto' ]);
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} else {
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$stream->send([ 'echo', json_encode($msg)]);
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}
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} else {
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$stream->send([ 'echo' => $msg ]);
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}
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});
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