🎉 New Source: OneSignal (#6998)

* add source onesignal

* update PR number in change log

* change source define cursor and sync mode

* get correct max cursor time across stream slices

* code improvement as code review advices

* format code

* remove unused code

* remove TODOs

Co-authored-by: Maksym Pavlenok <antixar@gmail.com>

airbyte-integrations/builds.md

@@ -53,6 +53,7 @@
 | Mixpanel   | [![source-mixpanel](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-mixpanel%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-mixpanel) |
 | Mongo DB  | [![source-mongodb-v2](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-mongodb-v2%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-mongodb-v2) |
 | MySQL   | [![source-mysql](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-mysql%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-mysql) |
+| OneSignal   | [![source-onesignal](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-onesignal%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-onesignal) |
 | Oracle DB   | [![source-oracle](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-oracle%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-oracle) |
 | Paypal Transaction   | [![paypal-transaction](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-paypal-transaction%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-paypal-transaction) |
 | Pipedrive   | [![source-pipedrive](https://img.shields.io/endpoint?url=https%3A%2F%2Fdnsgjos7lj2fu.cloudfront.net%2Ftests%2Fsummary%2Fsource-pipedrive%2Fbadge.json)](https://dnsgjos7lj2fu.cloudfront.net/tests/summary/source-pipedrive) |

airbyte-integrations/connectors/source-onesignal/.dockerignore

@@ -0,0 +1,7 @@
+*
+!Dockerfile
+!Dockerfile.test
+!main.py
+!source_onesignal
+!setup.py
+!secrets

airbyte-integrations/connectors/source-onesignal/Dockerfile

@@ -0,0 +1,38 @@
+FROM python:3.7.11-alpine3.14 as base
+
+# build and load all requirements
+FROM base as builder
+WORKDIR /airbyte/integration_code
+
+# upgrade pip to the latest version
+RUN apk --no-cache upgrade \
+    && pip install --upgrade pip \
+    && apk --no-cache add tzdata build-base
+
+
+COPY setup.py ./
+# install necessary packages to a temporary folder
+RUN pip install --prefix=/install .
+
+# build a clean environment
+FROM base
+WORKDIR /airbyte/integration_code
+
+# copy all loaded and built libraries to a pure basic image
+COPY --from=builder /install /usr/local
+# add default timezone settings
+COPY --from=builder /usr/share/zoneinfo/Etc/UTC /etc/localtime
+RUN echo "Etc/UTC" > /etc/timezone
+
+# bash is installed for more convenient debugging.
+RUN apk --no-cache add bash
+
+# copy payload code only
+COPY main.py ./
+COPY source_onesignal ./source_onesignal
+
+ENV AIRBYTE_ENTRYPOINT "python /airbyte/integration_code/main.py"
+ENTRYPOINT ["python", "/airbyte/integration_code/main.py"]
+
+LABEL io.airbyte.version=0.1.0
+LABEL io.airbyte.name=airbyte/source-onesignal

airbyte-integrations/connectors/source-onesignal/README.md

@@ -0,0 +1,132 @@
+# Onesignal Source
+
+This is the repository for the Onesignal source connector, written in Python.
+For information about how to use this connector within Airbyte, see [the documentation](https://docs.airbyte.io/integrations/sources/onesignal).
+
+## Local development
+
+### Prerequisites
+**To iterate on this connector, make sure to complete this prerequisites section.**
+
+#### Minimum Python version required `= 3.7.0`
+
+#### Build & Activate Virtual Environment and install dependencies
+From this connector directory, create a virtual environment:
+```
+python -m venv .venv
+```
+
+This will generate a virtualenv for this module in `.venv/`. Make sure this venv is active in your
+development environment of choice. To activate it from the terminal, run:
+```
+source .venv/bin/activate
+pip install -r requirements.txt
+pip install '.[tests]'
+```
+If you are in an IDE, follow your IDE's instructions to activate the virtualenv.
+
+Note that while we are installing dependencies from `requirements.txt`, you should only edit `setup.py` for your dependencies. `requirements.txt` is
+used for editable installs (`pip install -e`) to pull in Python dependencies from the monorepo and will call `setup.py`.
+If this is mumbo jumbo to you, don't worry about it, just put your deps in `setup.py` but install using `pip install -r requirements.txt` and everything
+should work as you expect.
+
+#### Building via Gradle
+You can also build the connector in Gradle. This is typically used in CI and not needed for your development workflow.
+
+To build using Gradle, from the Airbyte repository root, run:
+```
+./gradlew :airbyte-integrations:connectors:source-onesignal:build
+```
+
+#### Create credentials
+**If you are a community contributor**, follow the instructions in the [documentation](https://docs.airbyte.io/integrations/sources/onesignal)
+to generate the necessary credentials. Then create a file `secrets/config.json` conforming to the `source_onesignal/spec.json` file.
+Note that any directory named `secrets` is gitignored across the entire Airbyte repo, so there is no danger of accidentally checking in sensitive information.
+See `integration_tests/sample_config.json` for a sample config file.
+
+**If you are an Airbyte core member**, copy the credentials in Lastpass under the secret name `source onesignal test creds`
+and place them into `secrets/config.json`.
+
+### Locally running the connector
+```
+python main.py spec
+python main.py check --config secrets/config.json
+python main.py discover --config secrets/config.json
+python main.py read --config secrets/config.json --catalog integration_tests/configured_catalog.json
+```
+
+### Locally running the connector docker image
+
+#### Build
+First, make sure you build the latest Docker image:
+```
+docker build . -t airbyte/source-onesignal:dev
+```
+
+You can also build the connector image via Gradle:
+```
+./gradlew :airbyte-integrations:connectors:source-onesignal:airbyteDocker
+```
+When building via Gradle, the docker image name and tag, respectively, are the values of the `io.airbyte.name` and `io.airbyte.version` `LABEL`s in
+the Dockerfile.
+
+#### Run
+Then run any of the connector commands as follows:
+```
+docker run --rm airbyte/source-onesignal:dev spec
+docker run --rm -v $(pwd)/secrets:/secrets airbyte/source-onesignal:dev check --config /secrets/config.json
+docker run --rm -v $(pwd)/secrets:/secrets airbyte/source-onesignal:dev discover --config /secrets/config.json
+docker run --rm -v $(pwd)/secrets:/secrets -v $(pwd)/integration_tests:/integration_tests airbyte/source-onesignal:dev read --config /secrets/config.json --catalog /integration_tests/configured_catalog.json
+```
+## Testing
+Make sure to familiarize yourself with [pytest test discovery](https://docs.pytest.org/en/latest/goodpractices.html#test-discovery) to know how your test files and methods should be named.
+First install test dependencies into your virtual environment:
+```
+pip install .[tests]
+```
+### Unit Tests
+To run unit tests locally, from the connector directory run:
+```
+python -m pytest unit_tests
+```
+
+### Integration Tests
+There are two types of integration tests: Acceptance Tests (Airbyte's test suite for all source connectors) and custom integration tests (which are specific to this connector).
+#### Custom Integration tests
+Place custom tests inside `integration_tests/` folder, then, from the connector root, run
+```
+python -m pytest integration_tests
+```
+#### Acceptance Tests
+Customize `acceptance-test-config.yml` file to configure tests. See [Source Acceptance Tests](https://docs.airbyte.io/connector-development/testing-connectors/source-acceptance-tests-reference) for more information.
+If your connector requires to create or destroy resources for use during acceptance tests create fixtures for it and place them inside integration_tests/acceptance.py.
+To run your integration tests with acceptance tests, from the connector root, run
+```
+python -m pytest integration_tests -p integration_tests.acceptance
+```
+To run your integration tests with docker
+
+### Using gradle to run tests
+All commands should be run from airbyte project root.
+To run unit tests:
+```
+./gradlew :airbyte-integrations:connectors:source-onesignal:unitTest
+```
+To run acceptance and custom integration tests:
+```
+./gradlew :airbyte-integrations:connectors:source-onesignal:integrationTest
+```
+
+## Dependency Management
+All of your dependencies should go in `setup.py`, NOT `requirements.txt`. The requirements file is only used to connect internal Airbyte dependencies in the monorepo for local development.
+We split dependencies between two groups, dependencies that are:
+* required for your connector to work need to go to `MAIN_REQUIREMENTS` list.
+* required for the testing need to go to `TEST_REQUIREMENTS` list
+
+### Publishing a new version of the connector
+You've checked out the repo, implemented a million dollar feature, and you're ready to share your changes with the world. Now what?
+1. Make sure your changes are passing unit and integration tests.
+1. Bump the connector version in `Dockerfile` -- just increment the value of the `LABEL io.airbyte.version` appropriately (we use [SemVer](https://semver.org/)).
+1. Create a Pull Request.
+1. Pat yourself on the back for being an awesome contributor.
+1. Someone from Airbyte will take a look at your PR and iterate with you to merge it into master.

airbyte-integrations/connectors/source-onesignal/acceptance-test-config.yml

@@ -0,0 +1,29 @@
+# See [Source Acceptance Tests](https://docs.airbyte.io/connector-development/testing-connectors/source-acceptance-tests-reference)
+# for more information about how to configure these tests
+connector_image: airbyte/source-onesignal:dev
+tests:
+  spec:
+    - spec_path: "source_onesignal/spec.json"
+  connection:
+    - config_path: "secrets/config.json"
+      status: "succeed"
+    - config_path: "integration_tests/invalid_config.json"
+      status: "failed"
+  discovery:
+    - config_path: "secrets/config.json"
+  basic_read:
+    - config_path: "secrets/config.json"
+      configured_catalog_path: "integration_tests/configured_catalog.json"
+      empty_streams: []
+      expect_records:
+        path: "integration_tests/expected_records.txt"
+        extra_fields: no
+        exact_order: no
+        extra_records: yes
+  incremental:
+    - config_path: "secrets/config.json"
+      configured_catalog_path: "integration_tests/configured_catalog.json"
+      future_state_path: "integration_tests/abnormal_state.json"
+  full_refresh:
+    - config_path: "secrets/config.json"
+      configured_catalog_path: "integration_tests/configured_catalog.json"

airbyte-integrations/connectors/source-onesignal/acceptance-test-docker.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env sh
+
+# Build latest connector image
+docker build . -t $(cat acceptance-test-config.yml | grep "connector_image" | head -n 1 | cut -d: -f2)
+
+# Pull latest acctest image
+docker pull airbyte/source-acceptance-test:latest
+
+# Run
+docker run --rm -it \
+    -v /var/run/docker.sock:/var/run/docker.sock \
+    -v /tmp:/tmp \
+    -v $(pwd):/test_input \
+    airbyte/source-acceptance-test \
+    --acceptance-test-config /test_input
+

airbyte-integrations/connectors/source-onesignal/bootstrap.md

@@ -0,0 +1,28 @@
+# OneSignal
+
+## Overview
+
+OneSignal is a customer messaging and engagement platform that allows businesses to create meaningful customer connections. OneSignal REST API allows a developer to retrieve audience and messaging information on the OneSignal platform.
+
+## Endpoints
+
+OneSignal API consists of four endpoints which can be extracted data from:
+
+1. **App**: The collection of audience and messaging channels.
+2. **Device**: A customer's device which can send message to, it is associated with app.
+3. **Notification**: A messaging activity associated with app.
+4. **Outcome**: Aggregated information associated with app, for example, session duration, number of clicks, etc.
+
+## Quick Notes
+
+- Each app has its own authentication key to retrieve its devices, notifications and outcomes. The key can be found in the app's endpoint response.
+
+- Device and notification endpoint has 300 and 50 records limit per request respectively, so the cursor pagination strategy is used for them.
+
+- Rate limiting follows [https://documentation.onesignal.com/docs/rate-limits](https://documentation.onesignal.com/docs/rate-limits), when a 429 HTTP status code returned.
+
+- For the outcome endpoint, it needs to specify a comma-separated list of names and the value (sum/count) for the returned outcome data. So this requirement is added to the source spec.
+
+## API Reference
+
+The API reference documents: [https://documentation.onesignal.com/reference](https://documentation.onesignal.com/reference)

airbyte-integrations/connectors/source-onesignal/build.gradle

@@ -0,0 +1,14 @@
+plugins {
+    id 'airbyte-python'
+    id 'airbyte-docker'
+    id 'airbyte-source-acceptance-test'
+}
+
+airbytePython {
+    moduleDirectory 'source_onesignal'
+}
+
+dependencies {
+    implementation files(project(':airbyte-integrations:bases:source-acceptance-test').airbyteDocker.outputs)
+    implementation files(project(':airbyte-integrations:bases:base-python').airbyteDocker.outputs)
+}

airbyte-integrations/connectors/source-onesignal/integration_tests/__init__.py

@@ -0,0 +1,3 @@
+#
+# Copyright (c) 2021 Airbyte, Inc., all rights reserved.
+#

airbyte-integrations/connectors/source-onesignal/integration_tests/abnormal_state.json

@@ -0,0 +1,8 @@
+{
+  "devices": {
+    "created_at": 33190962600
+  },
+  "notifications": {
+    "queued_at": 33190962600
+  }
+}

airbyte-integrations/connectors/source-onesignal/integration_tests/acceptance.py

@@ -0,0 +1,14 @@
+#
+# Copyright (c) 2021 Airbyte, Inc., all rights reserved.
+#
+
+
+import pytest
+
+pytest_plugins = ("source_acceptance_test.plugin",)
+
+
+@pytest.fixture(scope="session", autouse=True)
+def connector_setup():
+    """ This fixture is a placeholder for external resources that acceptance test might require."""
+    yield

airbyte-integrations/connectors/source-onesignal/integration_tests/catalog.json

@@ -0,0 +1,30 @@
+{
+  "streams": [
+    {
+      "name": "apps",
+      "supported_sync_modes": ["full_refresh"],
+      "source_defined_cursor": true,
+      "json_schema": {}
+    },
+    {
+      "name": "devices",
+      "supported_sync_modes": ["incremental"],
+      "source_defined_cursor": true,
+      "default_cursor_field": "created_at",
+      "json_schema": {}
+    },
+    {
+      "name": "notifications",
+      "supported_sync_modes": ["incremental"],
+      "source_defined_cursor": true,
+      "default_cursor_field": "queued_at",
+      "json_schema": {}
+    },
+    {
+      "name": "outcomes",
+      "supported_sync_modes": ["full_refresh"],
+      "source_defined_cursor": true,
+      "json_schema": {}
+    }
+  ]
+}

airbyte-integrations/connectors/source-onesignal/integration_tests/configured_catalog.json

@@ -0,0 +1,40 @@
+{
+  "streams": [
+    {
+      "stream": {
+        "name": "apps",
+        "json_schema": {},
+        "supported_sync_modes": ["full_refresh"]
+      },
+      "sync_mode": "full_refresh",
+      "destination_sync_mode": "overwrite"
+    },
+    {
+      "stream": {
+        "name": "devices",
+        "json_schema": {},
+        "supported_sync_modes": ["incremental"]
+      },
+      "sync_mode": "incremental",
+      "destination_sync_mode": "append"
+    },
+    {
+      "stream": {
+        "name": "notifications",
+        "json_schema": {},
+        "supported_sync_modes": ["incremental"]
+      },
+      "sync_mode": "incremental",
+      "destination_sync_mode": "append"
+    },
+    {
+      "stream": {
+        "name": "outcomes",
+        "json_schema": {},
+        "supported_sync_modes": ["full_refresh"]
+      },
+      "sync_mode": "full_refresh",
+      "destination_sync_mode": "overwrite"
+    }
+  ]
+}