Node.js is fun

I have been playing with Node.js for few days and really love it. Trying to build a prototype website with workflows. 

Use case:

• log into the system
• upload dataset with supported format (fastq, sam/bam, vcf, bed. etc)
• describe the dataset
• choose components/node, each node is a independent operation
• connect components with edges as DAG (directed acyclic graph)
• fine tune each component if necessary (add/remove/change parameter settings)
• execute the flow
• monitor the progress (check, terminate, pause)
• check out the output of each component and last result
• save the flow for future use, share, publish.

#download the NoFlo.js flow demo
$git clone https://github.com/noflo/dataflow-noflo.git flow

$cd flow

$npm install

$grunt build

#start a simple http server to serve the contents
$python -m SimpleHTTPServer

#You may see a log message like this:
#Serving HTTP on 0.0.0.0 port 8000

Now start a browser like Chrome, type in 

"192.168.1.2:8000/demo/" 

#192.168.1.2 is my ip address. YMMV.

You will see a very nice dataflow graph like this:

You can add/delete/drag/move nodes and edges. Cool!