node-red-node-base85

node-red-node-base85
====================

A Node-RED node to encode and decode base85 format messages.

Install
-------

Run the following command in your Node-RED user directory - typically ~/.node-red

npm i node-red-node-base85

Usage
-----

A function that converts the msg.payload to and from base85 format.

If the input is a binary buffer it converts it to a Base85 encoded string.

If the input is a Base85 string it converts it back to a binary buffer.

This ndoe supports three common alphabets:

* ZMP (both 4-byte-chunk limited and not)

* Ascii85(with and without `<~ / ~>` wrappers)

* BtoA

Sample Flow
-----------

[{"id":"d2ccae00.2d335","type":"inject","name":"","topic":"","payload":"","payloadType":"none","repeat":"","crontab":"","once":false,"x":136,"y":99,"z":"385bdf8b.c7a42","wires":[["e03cae10.1fc35"]]},{"id":"b778ef09.48871","type":"base85","name":"","x":411.5,"y":160,"z":"385bdf8b.c7a42","wires":[["6295d1b1.9d6a3","46b597ba.b94a68"]]},{"id":"6295d1b1.9d6a3","type":"debug","name":"","active":true,"console":"false","complete":"false","x":610,"y":160,"z":"385bdf8b.c7a42","wires":[]},{"id":"ead9e7c9.152618","type":"debug","name":"","active":true,"console":"false","complete":"false","x":610,"y":240,"z":"385bdf8b.c7a42","wires":[]},{"id":"46b597ba.b94a68","type":"base85","name":"","x":411.5,"y":240,"z":"385bdf8b.c7a42","wires":[["ead9e7c9.152618"]]},{"id":"1c9124e9.e36edb","type":"inject","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"x":1775,"y":113,"z":"385bdf8b.c7a42","wires":[[]]},{"id":"48a892ea.b7576c","type":"debug","name":"","active":true,"console":"false","complete":"false","x":2171,"y":210,"z":"385bdf8b.c7a42","wires":[]},{"id":"e03cae10.1fc35","type":"function","name":"","func":"msg.payload = new Buffer.from(\"12345\");\nreturn msg;","outputs":1,"x":250,"y":160,"z":"385bdf8b.c7a42","wires":[["b778ef09.48871"]]}]