node-red-contrib-feedparser-x

A modified version of node-red-node-feedparser-2

Added persistent seen list, so you need not receive a train of messages when restart node-red

Install

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

    npm install node-red-contrib-feedparser-x

Edit setting.js, and search for contextStorage. Make some changes like following:

    contextStorage: {
             default: {
                 module:"memory"
             },
             redis: {
                 module:require("node-red-context-redis"),
                 config:{
                     host:"127.0.0.1",
                     port:6379,
                     prefix:"nodered"
                 }
             }
         },

The most significant change is adding redis key as well as its config.

Tips: node-red-context-redis was not released by node-red official in npm any more. But there is a feasible method that install from a git repo:

npm install git+https://github.com/node-red-hitachi/node-red-context-redis

Obviously, a redis server must be launched.

Usage

input:

msg.payload should be assigned as the feed url.

msg.init_send is a boolean value, which when set as true, the history message would be output, while when set as false, it would be not. Default value is false

msg.keep_size is a int value which default is 30, which was used to keep specified amount of messages. This module will keep the latest keep_size messages. So, it is best to set the value to 1.5 times or even more the number of entries in the message source list.

A recommended method is to drag an inject node which intermittently input a url in to this node.

output:

Same as node-red-node-feedparser

Bugs reporting and pull requests are welcome!