Use an app factory pattern to enable app testing #495
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pamelafox
commented
Aug 2, 2023
| matrix: | ||
| os: ["ubuntu-20.04"] | ||
| python_version: ["3.8", "3.9", "3.10", "3.11"] | ||
| python_version: ["3.9", "3.10", "3.11"] |
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Removing 3.8 since we don't currently support it (due to our typing syntax). We can add it back if its an issue for customers.
pamelafox
commented
Aug 2, 2023
| run: | | ||
| cd ./app/frontend | ||
| npm install | ||
| npm run build |
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This must be built since the Flask tests try to hit up index.html
pamelafox
commented
Aug 2, 2023
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| @bp.route("/assets/<path:path>") | ||
| def assets(path): | ||
| return send_from_directory("static/assets", path) |
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This is a security upgrade over the previous route that used send_static_file for arbitrary paths.
pamelafox
commented
Aug 2, 2023
| def ask(): | ||
| if not request.json: | ||
| return jsonify({"error": "request must be json"}), 400 | ||
| if not request.is_json: |
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This was a bug, caught by the new tests. Calling request.json causes an immediate 415 HTTP error if theres no JSON passed in, thus it's now request.is_json.
tonybaloney
approved these changes
Aug 3, 2023
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Great improvement, this will cause a few merge conflicts with existing PRs, but that can't be avoided |
JohananLM
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Aug 9, 2023
Use an app factory pattern to enable app testing (Azure-Samples#495)
HughRunyan
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Mar 26, 2024
* Run ruff, add to precommit * Blueprint * Change to blueprint, app factory * Fixing the imports * Build frontend * Update startup * Update startup * Gunicorn command update * Revert yaml change
vuculescu
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Jan 27, 2025
* Run ruff, add to precommit * Blueprint * Change to blueprint, app factory * Fixing the imports * Build frontend * Update startup * Update startup * Gunicorn command update * Revert yaml change
hasithb
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Oct 19, 2025
* Run ruff, add to precommit * Blueprint * Change to blueprint, app factory * Fixing the imports * Build frontend * Update startup * Update startup * Gunicorn command update * Revert yaml change
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Purpose
This PR changes app.py to use an app factory pattern (create_app) along with a Flask Blueprint to organize the code. This makes testing much easier and is a general best practice.
This PR is based off the previous PR that ruff-linted the files, so that needs to be merged first to isolate the changes. Then I'll turn the draft into an actual PR.
Does this introduce a breaking change?
Pull Request Type
What kind of change does this Pull Request introduce?
How to Test