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# Respond Collector
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[](https://travis-ci.org/FreifunkBremen/respond-collector)
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[](https://coveralls.io/github/FreifunkBremen/respond-collector?branch=master)
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`respond-collector` is a respond client that fetches, stores and publishes information about a Freifunk network. The goals:
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* Generating JSON for [MeshViewer ](https://github.com/ffnord/meshviewer ) (Works with branch [JSONv2 ](https://github.com/FreifunkBremen/meshviewer/tree/JSONv2 ))
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* Storing statistics in [InfluxDB ](https://influxdata.com/ ) to be analyzed by [Grafana ](http://grafana.org/ )
* Provide information via Websocket- and JSON-APIs
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## Usage
```
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Usage of ./respond-collector:
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-config path/to/config.yml
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```
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## Development
### respond
It send the `gluon-neighbour-info` request and collect them together.
It will send UDP packetes by the multicast group `ff02:0:0:0:0:0:2:1001` and port `1001` .
### modes.Nodes
It cached the Informations of the Nodes and will save them periodical to a JSON file.
The current nodes are saved default under `nodes.json` .
### websocketserver
One Instance is running under `/nodes` which send updates or new Nodes,
which are collected by respond.
### Issues
Later there should be also `/aliases` Websocket with Authentification to manage the `aliases.json` with the request for changes.
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## Related projects
Collecting data from respondd:
* [Node informant ](https://github.com/ffdo/node-informant ) written in Go
* [HopGlass Server ](https://github.com/plumpudding/hopglass-server ) written in Node.js
Respondd for servers:
* [respondd branch of ffnord-alfred-announce ](https://github.com/ffnord/ffnord-alfred-announce/tree/respondd ) from FreiFunkNord
* [respondd ](https://github.com/Sunz3r/ext-respondd ) from Sunz3r
* [respondd ](https://github.com/FreifunkBremen/respondd ) from Freifunk Bremen (just a proof of concept)
