PubNub::PubSub - Perl library for rapid publishing of messages on PubNub.com
use PubNub::PubSub;
my $pubnub = PubNub::PubSub->new(
pub_key => 'demo', # only required for publish
sub_key => 'demo',
channel => 'sandbox',
);
# publish
$pubnub->publish({
messages => ['message1', 'message2'],
callback => sub {
my ($res) = @_;
# $res is a L<Mojo::Message::Response>
say $res->code; # 200
say Dumper(\$res->json); # [1,"Sent","14108733777591385"]
}
});
$pubnub->publish({
channel => 'sandbox2', # optional, if not applied, the one in ->new will be used.
messages => ['message3', 'message4']
});
# subscribe
$pubnub->subscribe({
callback => sub {
my (@messages) = @_;
foreach my $msg (@messages) {
print "# Got message: $msg\n";
}
return 1; # 1 to continue, 0 to stop
}
});
PubNub::PubSub is Perl library for rapid publishing of messages on PubNub.com based on Mojo::UserAgent
perl clone of https://gist.github.com/stephenlb/9496723#pubnub-http-pipelining
For a rough test:
- run perl examples/subscribe.pl in one terminal (or luanch may terminals with subscribe.pl)
- run perl examples/publish.pl in another terminal (you'll see all subscribe terminals will get messages.)
-
pub_key
optional, default pub_key for publish
-
sub_key
optional, default sub_key for all methods
-
channel
optional, default channel for all methods
-
publish_callback
optional. default callback for publish
-
debug
set ENV MOJO_USERAGENT_DEBUG to debug
subscribe channel to listen for the messages.
$pubnub->subscribe({
callback => sub {
my (@messages) = @_;
foreach my $msg (@messages) {
print "# Got message: $msg\n";
}
return 1; # 1 to continue, 0 to stop
}
});
return 0 to stop
publish messages to channel
$pubnub->publish({
messages => ['message1', 'message2'],
callback => sub {
my ($res) = @_;
# $res is a L<Mojo::Message::Response>
say $res->code; # 200
say Dumper(\$res->json); # [1,"Sent","14108733777591385"]
}
});
$pubnub->publish({
channel => 'sandbox2', # optional, if not applied, the one in ->new will be used.
messages => ['message3', 'message4']
});
Note if you need shared callback, please pass it when do ->new with publish_callback.
new Parameters specifically for Publish V2 ONLY
- ortt - Origination TimeToken where "r" = DOMAIN and "t" = TIMETOKEN
- meta - any JSON payload - intended as a safe and unencrypted payload
- ear - Eat At Read (read once)
- seqn - Sequence Number - for Guaranteed Delivery/Ordering
We'll first try to read from messages, if not specified, fall back to the same level as messages. eg:
$pubnub->publish({
messages => [
{
message => 'test message.',
ortt => {
"r" => 13,
"t" => "13978641831137500"
},
meta => {
"stuff" => []
},
ear => 'True',
seqn => 12345,
},
{
...
}
]
});
## if you have common part, you can specified as the same level as messages
$pubnub->publish({
messages => [
{
message => 'test message.',
ortt => {
"r" => 13,
"t" => "13978641831137500"
},
seqn => 12345,
},
{
...
}
],
meta => {
"stuff" => []
},
ear => 'True',
});
fetches historical messages of a channel
-
sub_key
optional, default will use the one passed to ->new
-
channel
optional, default will use the one passed to ->new
-
count
Specifies the number of historical messages to return. The Default is 100.
-
reverse
Setting to true will traverse the time line in reverse starting with the newest message first. Default is false. If both start and end arguments are provided, reverse is ignored and messages are returned starting with the newest message.
-
start
Time token delimiting the start of time slice (exclusive) to pull messages from.
-
end
Time token delimiting the end of time slice (inclusive) to pull messages from.
Sample code:
my $history = $pubnub->history({
count => 20,
reverse => "false"
});
# $history is [["message1", "message2", ... ],"Start Time Token","End Time Token"]
for example, to fetch all the rows in history
my $history = $pubnub->history({
reverse => "true",
});
while (1) {
print Dumper(\$history);
last unless @{$history->[0]}; # no messages
sleep 1;
$history = $pubnub->history({
reverse => "true",
start => $history->[2]
});
}
https://github.com/binary-com/perl-pubnub-pubsub
Binary.com [email protected]
Copyright 2014- binary.com.
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