swim-proto-js
Advanced tools
The Swim protocol library can be used in any standard JavaScript environment.
Use npm to incorporate the library into Node.js projects.
npm install --save swim-proto-js
var proto = require('swim-proto-js');
var envelope = proto.parse('@event(node: "house#kitchen", lane: "light/on")');
proto.stringify(envelope);
The Swim protocol defines a set of RECON datatypes used for URI-linked multiplexed structural messaging.
Send an event message to a node on some lane, or receive an event
message that propagated through a linked node on a subscribed lane.
node_uri and lane_uri always refer to origin node and lane to which
the event was published. link_uris enumerates all links the
event passed through prior to reaching the receiver.
<< @event([node:] <node_uri>, [lane:] <lane_uri>[, via: <link_uris>]) <body>
<< @event(node: "swim://iot.example.com/L01FE", lane: "light/off", via: "house#kitchen/light) {
time: @date("2015-02-03T07:53:31-0800")
}
<< @event(node: "swim://iot.example.com/SD02FD", lane: "alarm/smoke", via: "house#garage/smoke_detector") {
time: @data("2015-02-03T11:17:12-0800")
concentration: 330 @ppm
duration: 10 @seconds
}
Send a command message to a node on some lane, or receive a command
message that propagated through a linked node on a subscribed lane.
node_uri and lane_uri always refer to origin node and lane to which
the command was published. link_uris enumerates all links the
command passed through prior to reaching the receiver.
<< @command([node:] <node_uri>, [lane:] <lane_uri>[, via: <link_uris>]) <body>
<< @command(node: "house#kitchen", lane: "light/on")
<< @command(node: "swim://town.example.com/fire_dept", lane: "alarm/silence", via: "house") {
reason: "homeowner reported false alarm"
}
Request a replay of events that have propagated through a node on some lane. The receiver should respond with the minimum set of events necessary to reconstruct the receiver's current state, as it pertains to the requested message lane.
A @sync request establishes a corresponding link, if one doesn't already exist.
>> @sync([node:] <node_uri>, [lane:] <lane_uri>[, prio: <priority>])
<< @synced([node:] <node_uri>, [lane:] <lane_uri>)
>> @sync(node: "house", lane: "light/level", prio: 0.5)
<< @event(node: "house#kitchen", lane: "light/level") { level: 100 }
<< @event(node: "house#hallway", lane: "light/level") { level: 0 }
<< @synced(node: "house", lane: "light/level")
Subscribe to messages that flow through some node on some lane.
>> @link([node:] <node_uri>, [lane:] <lane_uri>[, prio: <priority>])
<< @linked([node:] <node_uri>, [lane:] <lane_uri>[, prio: <priority>])
>> @link("house#kitchen", "light")
<< @linked(node: "house#kitchen", lane: "light")
>> @link(node: "house", lane: "alarm", prio: 0.5)
<< @linked(node: "house", lane: "alarm", prio: 0.5)
Remove an existing message subscription identified by a
(node_uri, lane_uri) pair.
>> @unlink([node:] <node_uri>, [lane:] <lane_uri>)
<< @unlinked([node:] <node_uri>, [lane:] <lane_uri>)
Authorizes the connection with credentials contained in <body>.
>> @auth <body>
<< @authed <body>
De-authorizes the connection.
>> @deauth <body>
<< @deauthed <body>
FAQs
Swim Protocol JavaScript Implementation
We found that swim-proto-js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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