create the trkd_newsheadline.py, fix trkd_quote.py

Author: Wasin Waeosri

README.md

@@ -2,6 +2,7 @@
 This is an example project that shows how to implement TRKD REST Client with python
 - trkd_authen.py: An example application that shows how to authenticate with TRKD service
 - trkd_quote.py: An example application that shows how to subscribe (all fields and specific fields) the Quote data from TRKD service
+- trkd_newsheadline.py: An example application that shows how to subscribe the News Headline data from TRKD service
 
 
 #prerequisite
@@ -33,4 +34,6 @@ The best way is to get the pip package management tool
 #Releae Note
 - Version 1: 6 Sep 2016
     - trkd_authen.py
-	- trkd_quote.py
+	- trkd_quote.py
+- Version 1.0.1: 7 Sep 2016
+	- trkd_newsheadline.py

trkd_newsheadline.py

@@ -0,0 +1,98 @@
+'''
+The TRKD API sample code is provided for informational purposes only 
+and without knowledge or assumptions of the end users development environment. 
+We offer this code to provide developers practical and useful guidance while developing their own code. 
+However, we do not offer support and troubleshooting of issues that are related to the use of this code 
+in a particular environment; it is offered solely as sample code for guidance. 
+Please see the Thomson Reuters Knowledge Direct product page at http://customers.thomsonreuters.com 
+for additional information regarding the TRKD API.'''
+
+import os
+import sys
+import requests
+import json
+import getpass
+
+## Perform authentication
+def CreateAuthorization(username, password, appid):
+    token = None
+    ##create authentication request URL, message and header
+    authenMsg = {'CreateServiceToken_Request_1': { 'ApplicationID':appid, 'Username':username,'Password':password }}
+    authenURL = 'https://api.trkd.thomsonreuters.com/api/TokenManagement/TokenManagement.svc/REST/Anonymous/TokenManagement_1/CreateServiceToken_1'
+    headers = {'content-type': 'application/json;charset=utf-8'}
+    print '############### Sending Authentication request message to TRKD ###############'
+    try:
+        ##send request
+        result = requests.post(authenURL, data = json.dumps(authenMsg), headers=headers)
+        if result.status_code == 200: 
+            print 'Authen success'
+            print 'response status %s'%(result.status_code)
+            ##get Token
+            token = result.json()['CreateServiceToken_Response_1']['Token']
+        elif result.status_code == 500:
+            print 'Request fail'
+            print 'response status %s'%(result.status_code)
+            print 'Error: %s'%(result.json())
+    except requests.exceptions.RequestException as e:
+        print 'Exception!!!'
+        print e
+        sys.exit(1)
+    
+    return token
+
+## Perform News Headline request 
+def RetrieveNewsHeadline(token, appid):
+    ##construct news headline URL and header
+    newsURL = 'https://api.trkd.thomsonreuters.com/api/News/News.svc/REST/News_1/RetrieveHeadlineML_1'
+    headers = {'content-type': 'application/json;charset=utf-8' ,'X-Trkd-Auth-ApplicationID': appid, 'X-Trkd-Auth-Token' : token}
+    ##construct a news headline request message
+    ricName = raw_input('Please input Symbol: ')
+    newsRequestMsg = {'RetrieveHeadlineML_Request_1': {
+        'HeadlineMLRequest':{
+            'MaxCount':25,
+            'Filter':[
+                {
+                    'MetaDataConstraint':{
+                        'class': 'any',
+                        'Value': {
+                            'Text' : ricName
+                        }
+                    }
+                }
+            ]
+        }
+    }}
+
+    print '############### Sending News Headline request message to TRKD ###############'
+    try:
+        ##send request
+        newsResult = requests.post(newsURL, data = json.dumps(newsRequestMsg), headers=headers)
+        if newsResult.status_code == 200: ## success
+            print 'News Headline request success'
+            print newsResult.json()
+        else: ## fail
+            print 'Request fail'
+            print 'response status %s'%(newsResult.status_code)
+            print 'Error: %s'%(newsResult.json())
+
+    except requests.exceptions.RequestException as e:
+        print 'Exception!!!'
+        print e 
+        sys.exit(1)
+
+
+
+## ------------------------------------------ Main App ------------------------------------------ ##
+##Get username, password and applicationid
+username = raw_input('Please input username: ')
+##use getpass.getpass to hide user inputted password
+password = getpass.getpass(prompt='Please input password: ')
+appid = raw_input('Please input appid: ')
+
+token = CreateAuthorization(username,password,appid)
+print 'Token = %s'%(token)
+
+## if authentiacation success, continue subscribing Quote
+if not token == None:
+    RetrieveNewsHeadline(token,appid)
+

trkd_quote.py

@@ -72,14 +72,14 @@ def RetrieveQuotes(token, appid):
     print '############### Sending Quote request message to TRKD ###############'
     try:
         ##send request
-        quoteresult = requests.post(quoteURL, data = json.dumps(quoteRequestMsg), headers=headers)
-        if quoteresult.status_code == 200:
+        quoteResult = requests.post(quoteURL, data = json.dumps(quoteRequestMsg), headers=headers)
+        if quoteResult.status_code == 200: ## success
             print 'Quote request success'
-            print quoteresult.json()
-        else:
+            print quoteResult.json()
+        else: ## fail
             print 'Request fail'
-            print 'response status %s'%(quoteresult.status_code)
-            print 'Error: %s'%(quoteresult.json())
+            print 'response status %s'%(quoteResult.status_code)
+            print 'Error: %s'%(quoteResult.json())
 
     except requests.exceptions.RequestException as e:
         print 'Exception!!!'
@@ -96,8 +96,9 @@ def RetrieveQuotes(token, appid):
 
 token = CreateAuthorization(username,password,appid)
 print 'Token = %s'%(token)
-
-RetrieveQuotes(token,appid)
+## if authentiacation success, continue subscribing Quote
+if not token == None:
+    RetrieveQuotes(token,appid)