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performanceplatform-collector 0.2.8

performanceplatform-collector: tools for sending data to the Performance Platform

A python command line tool that aggregates data from third party sources and pushes the result through to the Performance Platform (see for more details). This tool uses the Google Analytics, Pingdom and Webtrends APIs to retrieve data.


Using pip

pip install performanceplatform-collector

From source

git clone
cd performanceplatform-collector
virtualenv venv
source venv/bin/activate
python install


pp-collector takes paths to various JSON files as arguments:

pp-collector (-l [collector slug] | -q [query file]) -b [backdrop file] -c [credentials file] -t [token file]

All the target files are likely to be located in the performanceplatform-collector-config repo. Make sure you update the content of the token file to match the token expected by the Backdrop dataset.

There are also some optional command line arguments you can provide pp-collect:

Rather than logging out to log/collector.log it will output all logs to stdout/err

When it comes to submitting the gathered data to the Performance Platform it will skip
making the POST requests and instead log out the url, headers and body to your terminal.

--start, --end
If you want the collector to gather past data, you can specify a start date in the format
"YYYY-MM-DD". You must also specify an end date. e.g.

--start=2014-08-03 --end=2014-09-03


Note on our configuation

For our deployment of the performanceplatform-collector we pull in configuration files from the performanceplatform-collector-config repo. The structure of our deployment configuration can be found there if more detailed examples are required.

There are four configuration files that get injected into pp-collector, each file is a required parameter.

Collector Slug

The collector slug is used to query Stagecraft to get the collector configuration. The collector configuration returned from Stagecraft is the same as that provided in the query file.

Query File

The query file contains everything about what the collector will do during execution. It provides an entrypoint that pp-collector will execute and provide the query and options k-v pairs. It is being replaced by the collector slug as a parameter:

# pingdom example
  "entrypoint": "performanceplatform.collector.pingdom",
  "query": {
    "name": "govuk"
  "options": {
    "additionalFields": {
      # Every record sent to backdrop will have these additional fields
      "foo": "bar",
      "sentAt": "specific-formatted-time-value"
  "plugins": [
    "Comment('Pingdom stats are aggregated using')
  "data-set": {
    "data-group": "my-data-group",
    "data-set": "my-data-set"


Entrypoints describe a python package path

The following entrypoints are currently available:


Backdrop file

This is a simple pointer to the performance platform’s data-store applications. It will define the endpoint for your collector to send all data to.:

  "backdrop_url": "",
  "stagecraft_url": "",
  "omniscient_api_token": "some-omniscient-token"

stagecraft_url and omniscient_api_token only need to be defined when using the -l option to pass in a collector slug.

Token File

A Note on Tokens

Need a token? Email The Performance Platform

The token file file holds the bearer token to be used by this collector when POSTing to the Performance Platform:

  "token": "some long hex value"

Credentials file

The credentials file is used to pass through any usernames, passwords, API keys etc that are required to communicate to the third party service you desire.:

# Google analytics Specific example
credentials = {
    "CLIENT_SECRETS": path/to/client_secret.json,
    "STORAGE_PATH": path/to/oauth/db,

# Piwik example
  "token_auth": "your Piwik secret token",
  "url": "your Piwik API url"

You can get your Piwik secret token from the Manage Users
admin area in your Piwik account.

Google Analytics

Setting up Google Analytics credentials:

To retrieve accurate paths for secrets (Google Analytics pathway):
  • Go to the Google API Console and create a new client ID (APIs & Auth > Credentials > OAuth > Create New Client ID)

  • Choose installed application > “other”.

  • Once created click the Download JSON link. This is your client secrets file.

  • To generate the storage path you can run python tools/ path/to/client/secrets.json

    • Follow the link to get the correct auth code

    • Copy and paste back into the CLI

    • This will default to creating google credentials in ./creds/ga.json

    • Error:

      * If you get an 'invalid client error', adding a name and support email under the ""APIs & auth" -> "Consent screen" Should fix this.
      * See for more.


Example Piwik configuration

Here is an example Piwik query file:

  "data-set": {
     "data-group": "consular-appointment-booking-service",
     "data-type": "journey-by-goal"
   "entrypoint": "performanceplatform.collector.piwik.core",
   "query": {
     "site_id": "9",
     "api_method": "Goals.get",
     "frequency": "daily",
     "api_method_arguments": {
        "idGoal": "3"
   "options": {
     "mappings": {
       "nb_visits_converted": "converted",
       "nb_conversions": "sessions"
     "idMapping": ["dataType","_timestamp","timeSpan"]
   "token": "piwik_fco"

The above configuration will instruct the Piwik collector to fetch data via the Goals.get method of your Piwik Reporting API endpoint. The endpoint is specified via the ‘url’ setting in your credentials file.

The ‘site_id’ and ‘frequency’ settings map to the standard Piwik Reporting API method arguments of ‘idSite’ and ‘period’ respectively.

  • site_id - a number representing your website
  • frequency - how statistics should be reported (daily, weekly, monthly)

If not specified, the ‘frequency’ setting defaults to ‘weekly’.

You can specify API method-specific arguments using the ‘api_method_arguments’ key in your query file as shown in the example. For a full list of methods available in the Piwik Reporting API, see

The Piwik collector uses the ‘mappings’ settings in your query file to determine which data items to extract from an API response and how to map their keys. The above query file, for example, will configure the collector to extract the ‘nb_visits_converted’ and ‘nb_conversions’ data items from the following example API response:

  "From 2015-05-25 to 2015-05-31": {
    "nb_visits_converted": 791,
    "nb_conversions": 791,
    "conversion_rate": 18.09,
    "revenue": 0 }

The keys of these data items will be replaced with ‘converted’ and ‘sessions’ respectively, ready for storage in the Performance Platform’s data application, Backdrop.

Running the Piwik collector

The Piwik collector is run from the command line in the normal way - see the Usage section above.

If you want to collect data by day, week or month over a period of time, specify an appropriate value for the ‘frequency’ setting in your query file and a start and end date in your run command using the ‘–start’ and ‘–end’ optional arguments. The dates are passed to the Piwik API via a ‘date’ argument of the form ‘YYYY-MM-DD,YYYY-MM-DD’.

If date arguments are not provided, a value of ‘previous1’ is passed for the Piwik ‘date’ argument which will return data for the previous day, week or month (according to the value of your ‘frequency’ setting).

Extending performanceplatform-collector

performanceplatform-collector can be extended to support new types of collector. To do so you’ll need to add new entrypoints. For each new type of collector create a file at:


Inside that file add a main function which has the following signature:

main(credentials, data_set_config, query, options, start_at, end_at)

These arguments are all strings which are forwarded from the command line.

Developing performanceplatform-collector

To begin working on the code

git clone
cd performanceplatform-collector
virtualenv venv
source venv/bin/activate
python develop

Due to the use of namespace packages, you must not install requirements with

pip install -r requirements.txt

If you have run this command, your virtualenv may be broken - you can fix by running

pip uninstall performanceplatform-client
python develop
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