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Tornado based Tiingo proxy for Excel
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| # A 'bridge' HTTP server that translates Excel web invocations to tiingo API calls | |
| # Requirements: Python 3.4, Tornado 4.3 | |
| # JOS 2016-02-16 | |
| import socket | |
| import logging | |
| import os | |
| import tornado.ioloop | |
| import tornado.web | |
| from tornado.httpclient import AsyncHTTPClient, HTTPRequest | |
| # Some constants - hack these to change the port, or the home page | |
| PORT=80 | |
| HOST=socket.gethostname( ) | |
| HomePage="""<html><body><p>Excel Tiingo</p><p>http://%s:%d</p></body></html>""" % ( HOST, PORT) | |
| TiingoHTTPHeaders = { | |
| "Content-Type" : "application/json", | |
| "Authorization" : "Token 48777192920ae042c07a1ba8cbf5b8bfd0c17c64" | |
| } | |
| TiingoHTMLHeader = '<html><body><table>' | |
| TiingoHTMLFooter = '</table></body></html>' | |
| TiingoKeys = ['date','open','high','low','close','volume','adjOpen','adjHigh','adjLow','adjClose','adjVolume'] | |
| TiingoTableHeaderRow = '<tr>%s</tr>' % ''.join( ['<td>%s</td>' % k for k in TiingoKeys]) | |
| class RootHandler( tornado.web.RequestHandler): | |
| def get( self): | |
| logging.info( "RootHandler.get: uri(%s) body(%s)" % ( self.request.uri, self.request.body)) | |
| self.write( HomePage) | |
| class TiingoHandler( tornado.web.RequestHandler): | |
| # flag this method as async to stop tornado auto invoking self.finish( ) | |
| @tornado.web.asynchronous | |
| def get( self): | |
| logging.info( "TiingoHandler.get: uri(%s) body(%s)" % ( self.request.uri, self.request.body)) | |
| client = AsyncHTTPClient( ) | |
| url = 'https://api.tiingo.com%s' % self.request.uri | |
| request = HTTPRequest( url, method='GET', headers=TiingoHTTPHeaders) | |
| logging.info( "TiingoHandler.get: uri(%s) url(%s)" % ( self.request.uri, url)) | |
| def handle_response( response): | |
| logging.info( "TiingoHandler.get.handle_response: response.body(%s)" % response.body) | |
| rlist = eval( response.body) | |
| self.write( TiingoHTMLHeader) | |
| self.write( TiingoTableHeaderRow) | |
| for r in rlist: | |
| self.write( '<tr>') | |
| for k in TiingoKeys: | |
| self.write( '<td>%s</td>' % r.get( k, '')) | |
| self.write( '</tr>') | |
| self.write( TiingoHTMLFooter) | |
| self.finish( ) | |
| client.fetch( request, callback=handle_response) | |
| def make_app( ): | |
| return tornado.web.Application([ | |
| (r'/tiingo/.*', TiingoHandler), | |
| (r'/.*', RootHandler), | |
| ]) | |
| if __name__ == "__main__": | |
| # tornado logs to stdout by default - we want it in a file in the %TEMP% dir | |
| logf = '%s\\tiingo_%d.log' % ( os.environ.get('TEMP'), os.getpid( )) | |
| logfmt = '%(asctime)s %(levelname)s %(thread)s %(message)s' | |
| logging.basicConfig( filename=logf, format=logfmt, level=logging.INFO) | |
| app = make_app( ) | |
| app.listen( PORT) | |
| tornado.ioloop.IOLoop.current( ).start( ) |
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