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Mobile app stores Prometheus Exporter (iTunes & Google Play)

Latest Release Build Status Docker Pulls

Quality Gate Status Security Rating Maintainability Rating

Bugs Code Smells Coverage Duplicated Lines (%)

License: MIT

Grafana dashboard that uses the App Stores Prometheus Exporter

This Prometheus exporter exports metrics (score, ratings, reviews, app version, etc.) from Apple iTunes and Google Play

It's based on google-play-scraper and app-store-scraper to help getting the data from the mobile app stores.

I'm looking to add more stores in the future (Microsoft Store, Amazon Appstore, etc.)

Metrics supported by the exporter

Currently, the Prometheus Exporter exports these datas:

Metric iTunes Google Play
Score since first version
Current Version Score
Current Version number of Reviews
Total Number of Reviews
Total Number of Ratings
Total Number of Ratings with 1 star
Total Number of Ratings with 2 stars
Total Number of Ratings with 3 stars
Total Number of Ratings with 4 stars
Total Number of Ratings with 5 stars
Minimum Active Installs
Maximum Active Installs

Metrics exposed to Prometheus

Default collected metrics

process_cpu_user_seconds_total
process_cpu_system_seconds_total
process_cpu_seconds_total
process_start_time_seconds
process_resident_memory_bytes
nodejs_eventloop_lag_seconds
nodejs_eventloop_lag_min_seconds
nodejs_eventloop_lag_max_seconds
nodejs_eventloop_lag_mean_seconds
nodejs_eventloop_lag_stddev_seconds
nodejs_eventloop_lag_p50_seconds
nodejs_eventloop_lag_p90_seconds
nodejs_eventloop_lag_p99_seconds
nodejs_active_handles{type="Pipe"}
nodejs_active_handles{type="Socket"}
nodejs_active_handles{type="Server"}
nodejs_active_handles_total
nodejs_active_requests_total
nodejs_heap_size_total_bytes
nodejs_heap_size_used_bytes
nodejs_external_memory_bytes
nodejs_heap_space_size_total_bytes{space="read_only"}
nodejs_heap_space_size_total_bytes{space="new"}
nodejs_heap_space_size_total_bytes{space="old"}
nodejs_heap_space_size_total_bytes{space="code"}
nodejs_heap_space_size_total_bytes{space="map"}
nodejs_heap_space_size_total_bytes{space="large_object"}
nodejs_heap_space_size_total_bytes{space="code_large_object"}
nodejs_heap_space_size_total_bytes{space="new_large_object"}
nodejs_heap_space_size_used_bytes{space="read_only"}
nodejs_heap_space_size_used_bytes{space="new"}
nodejs_heap_space_size_used_bytes{space="old"}
nodejs_heap_space_size_used_bytes{space="code"}
nodejs_heap_space_size_used_bytes{space="map"}
nodejs_heap_space_size_used_bytes{space="large_object"}
nodejs_heap_space_size_used_bytes{space="code_large_object"}
nodejs_heap_space_size_used_bytes{space="new_large_object"}
nodejs_heap_space_size_available_bytes{space="read_only"}
nodejs_heap_space_size_available_bytes{space="new"}
nodejs_heap_space_size_available_bytes{space="old"}
nodejs_heap_space_size_available_bytes{space="code"}
nodejs_heap_space_size_available_bytes{space="map"}
nodejs_heap_space_size_available_bytes{space="large_object"}
nodejs_heap_space_size_available_bytes{space="code_large_object"}
nodejs_heap_space_size_available_bytes{space="new_large_object"}
nodejs_version_info{version="v16.14.2",major="16",minor="14",patch="2"}
nodejs_gc_duration_seconds_bucket{le="0.001",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="0.01",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="0.1",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="1",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="2",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="5",kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="+Inf",kind="incremental"}
nodejs_gc_duration_seconds_sum{kind="incremental"}
nodejs_gc_duration_seconds_count{kind="incremental"}
nodejs_gc_duration_seconds_bucket{le="0.001",kind="major"}
nodejs_gc_duration_seconds_bucket{le="0.01",kind="major"}
nodejs_gc_duration_seconds_bucket{le="0.1",kind="major"}
nodejs_gc_duration_seconds_bucket{le="1",kind="major"}
nodejs_gc_duration_seconds_bucket{le="2",kind="major"}
nodejs_gc_duration_seconds_bucket{le="5",kind="major"}
nodejs_gc_duration_seconds_bucket{le="+Inf",kind="major"}
nodejs_gc_duration_seconds_sum{kind="major"}
nodejs_gc_duration_seconds_count{kind="major"}
nodejs_gc_duration_seconds_bucket{le="0.001",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="0.01",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="0.1",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="1",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="2",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="5",kind="minor"}
nodejs_gc_duration_seconds_bucket{le="+Inf",kind="minor"}
nodejs_gc_duration_seconds_sum{kind="minor"}
nodejs_gc_duration_seconds_count{kind="minor"}

iTunes Store

appstores_score_total{store="itunes",country="COUNTRY",app="BUNDLEID",version="VERSION"}
appstores_reviews_total{store="itunes",country="COUNTRY",app="BUNDLEID",version="VERSION"}
appstores_current_version_score_total{store="itunes",country="COUNTRY",app="BUNDLEID",version="VERSION"}
appstores_current_version_reviews_total{store="itunes",country="COUNTRY",app="BUNDLEID",version="VERSION"}
appstores_ratings_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_1_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_2_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_3_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_4_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_5_total{store="itunes",country="COUNTRY",app="APPID",version="VERSION"}

Google Play Store

appstores_score_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_reviews_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_1_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_2_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_3_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_4_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_ratings_5_total{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_min_active_installs{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}
appstores_max_active_installs{store="gplay",country="COUNTRY",app="APPID",version="VERSION"}

Metrics output example

[...]

# HELP appstores_score_total App score since the launch of the app
# TYPE appstores_score_total gauge
appstores_score_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 4.69536
appstores_score_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 4.74342
appstores_score_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 4.69854
appstores_score_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 4.2947626
appstores_score_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 4.0539274
appstores_score_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 4.2890716

# HELP appstores_reviews_total App reviews since the launch of the app
# TYPE appstores_reviews_total gauge
appstores_reviews_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 9898794
appstores_reviews_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 22806478
appstores_reviews_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 2505037
appstores_reviews_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 1796947
appstores_reviews_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 4337335
appstores_reviews_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 682822

# HELP appstores_ratings_total App ratings since the launch of the app
# TYPE appstores_ratings_total gauge
appstores_ratings_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 9903510
appstores_ratings_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 22806478
appstores_ratings_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 2505968
appstores_ratings_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 159650351
appstores_ratings_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 133666117
appstores_ratings_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 159649715

# HELP appstores_ratings_1_total App ratings with 1 star since the launch of the app
# TYPE appstores_ratings_1_total gauge
appstores_ratings_1_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 290260
appstores_ratings_1_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 626005
appstores_ratings_1_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 56262
appstores_ratings_1_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 16970531
appstores_ratings_1_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 21887135
appstores_ratings_1_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 16107629

# HELP appstores_ratings_2_total App ratings with 2 stars since the launch of the app
# TYPE appstores_ratings_2_total gauge
appstores_ratings_2_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 124294
appstores_ratings_2_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 191480
appstores_ratings_2_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 26797
appstores_ratings_2_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 4302408
appstores_ratings_2_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 3966737
appstores_ratings_2_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 4142390

# HELP appstores_ratings_3_total App ratings with 3 stars since the launch of the app
# TYPE appstores_ratings_3_total gauge
appstores_ratings_3_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 316454
appstores_ratings_3_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 553889
appstores_ratings_3_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 90520
appstores_ratings_3_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 7736141
appstores_ratings_3_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 6554452
appstores_ratings_3_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 8522048

# HELP appstores_ratings_4_total App ratings with 4 stars since the launch of the app
# TYPE appstores_ratings_4_total gauge
appstores_ratings_4_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 850007
appstores_ratings_4_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 1665557
appstores_ratings_4_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 268918
appstores_ratings_4_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 16329658
appstores_ratings_4_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 13900146
appstores_ratings_4_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 19597512

# HELP appstores_ratings_5_total App ratings with 5 stars since the launch of the app
# TYPE appstores_ratings_5_total gauge
appstores_ratings_5_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 8322495
appstores_ratings_5_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 19769547
appstores_ratings_5_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 2063471
appstores_ratings_5_total{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 114311571
appstores_ratings_5_total{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 87357625
appstores_ratings_5_total{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 111280031

# HELP appstores_current_version_score_total App score for the current app version
# TYPE appstores_current_version_score_total gauge
appstores_current_version_score_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 4.69536
appstores_current_version_score_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 4.74342
appstores_current_version_score_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 4.69854

# HELP appstores_current_version_reviews_total App reviews for the current app version
# TYPE appstores_current_version_reviews_total gauge
appstores_current_version_reviews_total{store="itunes",country="us",app="net.whatsapp.WhatsApp",version="22.7.80"} 9898794
appstores_current_version_reviews_total{store="itunes",country="us",app="com.burbn.instagram",version="228.0"} 22806478
appstores_current_version_reviews_total{store="itunes",country="gb",app="net.whatsapp.WhatsApp",version="22.7.80"} 2505037

# HELP appstores_min_active_installs App minimum active installs since the launch of the app
# TYPE appstores_min_active_installs gauge
appstores_min_active_installs{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 1000000000
appstores_min_active_installs{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 5000000000
appstores_min_active_installs{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 5000000000

# HELP appstores_max_active_installs App maximum active installs since the launch of the app
# TYPE appstores_max_active_installs gauge
appstores_max_active_installs{store="gplay",country="us",app="com.instagram.android",version="Varies with device"} 4116093271
appstores_max_active_installs{store="gplay",country="gb",app="com.whatsapp",version="2.22.7.74"} 7025049556
appstores_max_active_installs{store="gplay",country="us",app="com.whatsapp",version="2.22.7.74"} 7025049556

Requirements

  • NodeJS >=16

Installation

Docker image

Default with demo apps

The simplest way to test this Prometheus exporter is by using Docker.

The command below will exports the metrics from the default apps from the src/examples/apps.json.

mkdir ./config
cp -R ./src/examples/*.json ./config
docker-compose up

Now, you can see the Prometheus metrics from your browser or command line at http://localhost:9514/metrics

curl http://localhost:9514/metrics

There is also a health check available which you can access from your browser or command line at http://localhost:9514/health

curl -v http://localhost:9514/health

Customize with yours apps

Now, try to test with your own app(s) by editing the config files.

Start by copy the files from the src/examples folder to the config folder (root of the project):

From To
src/examples/apps.json => config/apps.json
src/examples/config.json => config/config.json

Add now your app IDs for iOS or/and Android on the apps.json file and activate the metrics you wants to export in the config.json file.

When it's done, restart the Docker container to see the changes:

docker-compose down
docker-compose up
curl http://localhost:9514/metrics

NPM install

From sources

git clone git@github.com:timoa/app-stores-prometheus-exporter.git
cd app-stores-prometheus-exporter
npm install

Copy the configuration files

From To
src/examples/apps.json => config/apps.json
src/examples/config.json => config/config.json
mv ./src/examples/*.json ./config

Start the App Stores Prometheus Exporter:

npm start

The console will output this message:

Prometheus App Stores exporter is listening on http://localhost:9514

Prometheus configuration

To configure Prometheus to pull the data of the App Stores exporter, you just need to add this job to your prometheus.yml:

global:
[...]

scrape_configs:
  - job_name: 'appstores'
    scrape_interval: 5m

    static_configs:
      - targets:
        - localhost:9514

Scrape interval

Since the mobile app stores are using cache for the app details pages, it doesn't make sense to check the pages every 5s.

Depending of the number of apps you will monitor, it will be better to set the scrape interval to 5m or more.

Tests

API

You can launch the Docker container or node.js app and test the endpoints with Postman:

Run in Postman

NPM

Unit-tests

npm test

Coverage

npm run test:coverage

Functional

npm run test:functional

All the tests

npm run test:all

Will be replace by chai-http soon.

Dashboards

The following Grafana dashboards are available in the Grafana Dashboards repository and can be install in your own Grafana instance (just copy the ID to import it):

TODO

  • Improve test coverage
  • Refactoring of the code to add more stores as plugins
  • Simplify multiple countries configuration
  • Add support to Mac App Store
  • Add support to Microsoft Store
  • Add support to Amazon Appstore
  • Add other metrics from official App Store and Google Play API (downloads, active installations, etc.)

Contributors

Made with contrib.rocks.