TRTH ExtractRawResult returns Error 404

samuel.schwalm

I'm creating a python sample around TRTH starting from the tutorial and I'm getting this 404 error in the last step of the process. Would anyone have a working python sample ?

• Getting the token works fine

import requests
import json 
requestUrl = "https://hosted.datascopeapi.reuters.com/RestApi/v1/Authentication/RequestToken" 

requestHeaders={
    "Prefer":"respond-async",
    "Content-Type":"application/json"
} 

requestBody={
    "Credentials": {
    "Username": "XXXXX",
    "Password": "*****"
  }
}
r = requests.post(requestUrl, json=requestBody,headers=requestHeaders)
jsonResponse = json.loads(r.text.encode('ascii', 'ignore')) 

token = jsonResponse["value"] 

print token

returns succesfully the token

• then I can successfuly post a request

Url='https://hosted.datascopeapi.reuters.com/RestApi/v1/Extractions/ExtractRaw'
requestUrl=Url

requestHeaders={
    "Prefer":"respond-async",
    "Content-Type":"application/json",
    "Authorization": "token " + token
}

requestBody={
  "ExtractionRequest": {
    "@odata.type": "#ThomsonReuters.Dss.Api.Extractions.ExtractionRequests.TickHistoryIntradaySummariesExtractionRequest",
    "ContentFieldNames": [
      "Close Ask",
      "Close Bid",
      "High",
      "High Ask",
      "High Bid",
      "Last",
      "Low",
      "Low Ask",
      "Low Bid",
      "No. Asks",
      "No. Bids",
      "No. Trades",
      "Open",
      "Open Ask",
      "Open Bid",
      "Volume"
    ],
    "IdentifierList": {
      "@odata.type": "#ThomsonReuters.Dss.Api.Extractions.ExtractionRequests.InstrumentIdentifierList",  
      "InstrumentIdentifiers": [{
        "Identifier": "CARR.PA",
        "IdentifierType": "Ric"
      }],
      "UseUserPreferencesForValidationOptions":"false"
    },

    "Condition": {
      "MessageTimeStampIn": "GmtUtc",
      "ReportDateRangeType": "Range",
      "QueryStartDate": "2016-09-29T00:00:00.000Z",
      "QueryEndDate": "2016-09-30T00:00:00.000Z",
      "SummaryInterval": "OneHour",
      "TimebarPersistence":"true",
      "DisplaySourceRIC":"true"
    }

  }
}

r = requests.post(requestUrl, json=requestBody,headers=requestHeaders)

print r
print r.headers
print r.headers["location"]

and get as expected

<Response [202]>

{'Status': 'InProgress', 'Content-Length': '0', 'X-Request-Execution-Correlation-Id': 'c9034ca7-94d4-4c5a-a4ee-75e499b88457', 'X-App-Id': 'Custom.RestApi', 'Set-Cookie': 'DSSAPI-COOKIE=R3479498792; path=/', 'Expires': '-1', 'Server': 'Microsoft-IIS/7.5', 'X-App-Version': '11.0.492.64', 'Location': "https://hosted.datascopeapi.reuters.com/RestApi/v1/Extractions/ExtractRawResult(ExtractionId='0x05b94284924b3016')", 'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 'Date': 'Fri, 19 May 2017 09:42:01 GMT', 'Progress': ''}

https://hosted.datascopeapi.reuters.com/RestApi/v1/Extractions/ExtractRawResult(ExtractionId='0x05b94284924b3016')

• I can then pull the status

requestUrl = r.headers["location"]
print requestUrl

requestHeaders={
    "Prefer":"respond-async",
    "Content-Type":"application/json",
    "Authorization":"token " + token
}

r2 = requests.get(requestUrl,headers=requestHeaders)

print r2
print r2.headers

until I get

<Response [200]>

• However, when I try to retrieve the content using

requestUrl = r.headers["location"] + "/$value"

requestHeaders={
    "Prefer":"respond-async",
    "Content-Type":"application/json",
    "Accept-Encoding":"gzip, deflate",
    "Authorization": "token " + token
}

r3 = requests.get(requestUrl,headers=requestHeaders)

print r3

I get

<Response [400]>

would anyone have a working python sample ?

Many thanks

Christiaan Meihsl

samuel.schwalm

400 is a bad request, 404 indicates that the resource specified by the request URL does not exist (see status codes here).

The issue is with the URL when you try to retrieve the content. It is not the location URL. Instead, you must use this URL:

https://hosted.datascopeapi.reuters.com/RestApi/v1/Extractions/RawExtractionResults('0x05b94284924b3016')/$value

This URL contains the JobId (0x05b94284924b3016) which was returned in the body of the previous 200 response.

You can find the details of the On Demand request workflow in this tutorial, and this particular step is described here.

samuel.schwalm

Christiaan Meihsl

Indeed with the right url it works better!

requestUrl = "https://hosted.datascopeapi.reuters.com/RestApi/v1/Extractions/RawExtractionResults" + "('" + jobId + "')" + "/$value"


requestHeaders={
    "Prefer":"respond-async",
    "Content-Type":"text/plain",
    "Accept-Encoding":"gzip",
    "Authorization": "token " + token
}


r3 = requests.get(requestUrl,headers=requestHeaders)
extract = r3.text 
print r3
print extract

or with a panda dataframe

rom StringIO import StringIO
import pandas as pd


timeSeries = pd.read_csv(StringIO(r3.text))
timeSeries

Many thanks

Samuel

samuel.schwalm

no problem. I'm using jypiter notebook, so it may have to be converted to another editor. in any case I'm happyto share it.

regards

Christiaan Meihsl

Great, good to know

samuel.schwalm

thank for the info. this is done.