I have a python Flask listener waiting on port 8080.I expect a client to POST documents to this listener.
#!/usr/bin/env python2
from __future__ import print_function
from flask import Flask, request
from flask.ext.cors import CORS
from datetime import datetime
import os, traceback, sys
import json
import os
app = Flask('__name__')
cors = CORS(app)
@app.route('/',methods=['GET','POST','OPTIONS'])
def recive_fe_events():
try:
data = request.get_data()
if request.content_length < 20000 and request.content_length != 0:
filename = 'out/{0}.json'.format(str(datetime.now()))
with open(filename, 'w') as f:
f.write(data)
print('Wrote', filename)
else:
print("Request too long", request.content_length)
content = '{{"status": 413, "content_length": {0}, "content": "{1}"}}'.format(request.content_length, data)
return content, 413
except:
traceback.print_exc()
return None, status.HTTP_500_INTERNAL_SERVER_ERROR
return '{"status": 200}\n'
if __name__ == '__main__':
app.run(host='0.0.0.0',debug=False,port=8080)
This server is able to listen to POST messages and decode them and dump them to a file.However there is a concern that the frequency of POST messages may become very high. I am thinking about ways to make this application scalable. What is the best way.Do I implement a load balancer in front, listening on port 8080 and then balance traffic across multiple listeners on 8081,8082 and 8083 for example.
