CHAT: Messaging Protocol
Simple mailbox delivery protocol.
Features
- Database Support: FS, MNESIA, ROCKSDB
- MQ Support: GPROC, SYN
- Formatters Support: TXT, BERT, BER/DER/PER [ASN.1]
- Size: 80 LOC
Intro
CHAT is an QoS=1 example of messaging system built on top of:
- SYN for publish subscribe message queue;
- N2O for protocols;
- KVX for data storage;
- and COWBOY for web server.
It also contains simple textual WebSocket protocol for debugging purposes. You can freely use this example with your favourite formatter for user terminal protocol.
$ wscat --no-check -c wss://localhost:8042/ws
> HELP
< N2O <user>
| SEND <user> <msg>
| BOX
| CUT <id>.
> N2O maxim
< USER maxim
> SEND vlad HELO
< ERROR user doesn't exist.
> N2O vlad
< USER vlad
> SEND maxim OK
< NOTIFY vlad:maxim:1556151953113322286:OK
< ACK "1556151953113322286"
> N2O maxim
< USER maxim
> BOX
< LIST
vlad:maxim:1556151953113322286:OK
> SEND maxim this is me
< NOTIFY maxim:maxim:1556152151055371152:this is me
< ACK "1556152151055371152"
> SEND maxim back again
< NOTIFY maxim:maxim:1556152157283311935:back again
< ACK "1556152157283311935"
> BOX
< LIST
vlad:maxim:1556151953113322286:OK
maxim:maxim:1556152151055371152:this is me
maxim:maxim:1556152157283311935:back again
> CUT 1556152157283311935
< ERASED 3
> BOX
< LIST
>Documentation
The project homepage is chat.n2o.dev.
Credits
- Maxim Sokhatsky
- Vladimir Kirillov
OM A HUM