A chronological record of every command executed this session while building the Flask version of the app, grouped by phase. File edits (Write/Edit) aren't repeated here — the files themselves are the record of those; this log is specifically the commands run. Secrets (the ngrok authtoken, the MongoDB connection string) are redacted even though they were typed in chat, since this file can end up in git.
Checked what was actually available before assuming anything, then created an isolated environment so hackathon dependencies wouldn't pollute the system/conda Python.
python --version && python -m pip --version
# → Python 3.13.12, pip 26.0.1 (miniforge). Confirmed Python was usable before planning
# a Flask rebuild around it.
python -m venv .venv
source .venv/Scripts/activate
python -m pip install --upgrade pip
python -m pip install flask flask-login
python -m pip freeze
# → Flask 3.1.3, Flask-Login 0.6.3 (+ Werkzeug, Jinja2, blinker, click, itsdangerous,
# MarkupSafe as their dependencies). Versions recorded into requirements.txt from this
# actual output, not guessed.After writing db.py, auth.py, app.py, and the templates, ran the app for real rather
than trusting it would work.
python app.py & # background — first live run of the new appNeeded a way to actually click through the app rather than just curl it, since this was a
UI-heavy rebuild. No project skill for running this app existed yet, and chromium-cli
wasn't installed, so fell back to a plain Playwright script:
which chromium-cli # not found
python -c "import playwright" # not installed either
node --version && npx --version && npx playwright --version # Node/npx present
python -m pip install playwright
python -m playwright install chromium --with-deps
# → downloaded Chrome for Testing + headless shell (~300MB) so screenshots could be takenpython verify_app.py # Playwright: login → catalogue → buy → My Orders, screenshot each stepFirst run 500'd on the Orders page. Read the Flask traceback from the background task's log rather than guessing:
TypeError: 'builtin_function_or_method' object is not iterable
File "templates/orders.html", line 17, in block 'content'
{% for item in entry.items %}
Root cause: db.py stored each order's line items under the dict key "items", and
Jinja2's entry.items resolved to Python's built-in dict.items() method instead of that
key, since dicts have a real .items attribute that shadows key lookup via dot notation.
Fixed by renaming the key to line_items in both db.py and orders.html, then re-ran
the same script to confirm:
python verify_app.py # re-run after the fix — full flow passed, 0 console errorsCleaned up afterwards so the next real run would start from a blank slate:
ls data/
rm data/flask_shop.sqlite data/flask_credentials.sqlite # test data was only from this runOnce the Flask app was confirmed working, removed the superseded R version (after showing the user exactly what would be deleted and getting confirmation).
git ls-files | grep -E "^(app\.R|R/|tests/|data/)"
# → confirmed which R files were actually git-tracked (the two R sqlite data files
# weren't — they were already correctly gitignored) before deciding rm vs git rm.
git rm --quiet app.R R/auth.R R/db.R R/server.R R/ui.R tests/testthat.R tests/testthat/test-budget.R
rm -f data/shop.sqlite data/credentials.sqlite
rmdir R tests/testthat tests 2>/dev/null # remove the now-empty directories
git status --short # confirm exactly 7 files staged as deleted, nothing unexpectedpython -m pip install "pymongo[srv]" python-dotenv
python -m pip freeze | grep -iE "pymongo|dnspython|dotenv"
# → pymongo 4.17.0, dnspython 2.8.0 (needed for mongodb+srv:// URIs), python-dotenv 1.2.2Wrote .env (gitignored) with MONGODB_URI=<redacted>, .env.example as a template, and
added .env / static/images/ to .gitignore before touching anything that would write
to those paths.
Inspected the real data before writing any mapping code — didn't want to guess field names:
python inspect_mongo.py
# first attempt: KeyError: 'MONGODB_URI' — load_dotenv() with no path searches relative to
# the calling script's own location, not the shell's cwd; the inspection script lived in
# a scratch directory, not the project root. Fixed by passing the .env path explicitly.
python inspect_mongo.py # re-run — got 3 sample docs + a 50-doc field-name sample:
# fields: _id, category, colour_count, colours, depth, height, image_mime_type, image_url,
# item_id, link, price, product_name, width. No description field.python check_mongo_quality.py
# → 762 total docs, 0 missing/null across every field, 762 distinct item_id (no dupes),
# image_mime_type always "image/jpeg", one sample image_url was 83,828 base64 chars long
# (~62KB decoded) — confirmed image_url is raw image bytes, not a URL, and estimated the
# ~47MB total before deciding to decode to files rather than store base64 in SQLite.Ran the real sync (after extending db.py's schema and writing sync_catalogue.py):
python sync_catalogue.py
# → fetched 762 products, decoded + wrote 762 image files, replaced the products table.
du -sh static/images/ data/flask_shop.sqlite && ls static/images/ | wc -l
# → 68M of images, 180K database (confirms images-as-files kept the DB itself small)
python -c "import db; print(dict(db.get_products()[0]))" # spot-checked one real rowVerified in a browser, not just via the sync script's own success message:
python app.py &
python verify_catalogue.py
# first pass: dozens of net::ERR_ABORTED on /static/images/*.jpg — investigated rather
# than assuming the sync was broken:
ls -la static/images/00102065.jpg && file static/images/00102065.jpg
# → file existed, correct size, valid JPEG. The aborts were Chromium cancelling in-flight
# image requests when the test script navigated away (762 images on one page take a few
# seconds) — not real breakage. Confirmed properly:
python -c "... page.wait_for_load_state('networkidle') ... naturalWidth === 0 ..."
# → 0 broken images once the page was actually given time to finish loading.Cleared out the test purchase and stale credentials db afterward, kept the synced products:
python -c "
import db
conn = db.get_shop_conn()
with conn:
conn.execute('DELETE FROM order_items')
conn.execute('DELETE FROM orders')
"
rm -f data/flask_credentials.sqlitepython app.py &
python -c "... page.locator('.budget-pill').inner_text() ..."
# → before: $2784.00 remaining of $5000.00 (alice already had order history); bought a
# $78.00 item; after: $2706.00 remaining — exact match confirmed the calculation.While checking this, queried the orders table directly and noticed alice had 9 orders (~$2216) with timestamps in rapid human-like succession that predated this session's own test runs — flagged to the user as likely their own manual testing rather than silently clearing it:
python -c "import db; conn = db.get_shop_conn(); [print(dict(r)) for r in conn.execute('SELECT * FROM orders ORDER BY id').fetchall()]"python -c "
import db
conn = db.get_shop_conn()
for r in conn.execute('SELECT category, COUNT(*) as n FROM products GROUP BY category ORDER BY category'):
print(r['category'], r['n'])
"
# → 17 real categories (Bar furniture, Beds, ... Wardrobes) before deciding how to group —
# informed adding a jump-nav, later upgraded to real filter tabs.python app.py &
python -c "... .category-nav a ... .category-section ... jump-link scroll check ..."
# → 17 nav links, 17 sections, correct per-category counts, anchor scroll landed at the
# expected offset.Noticed "Café furniture" printed as Caf� furniture in this terminal's own output and
verified it wasn't real data corruption before moving on:
python -c "
import db
row = db.get_shop_conn().execute(\"SELECT DISTINCT category FROM products WHERE category LIKE 'Caf%'\").fetchone()
print(row['category'].encode('utf-8')) # → b'Caf\xc3\xa9 furniture' — correct UTF-8 for é
"
# confirmed via the browser DOM too (inner_text().encode('utf-8').hex()) — the "�" was
# this Bash terminal's own print encoding limitation, not a bug in the app.After switching the jump-nav to real filter tabs (?category=...):
python app.py &
python -c "... click 'Chairs' tab ... assert URL == '/?category=Chairs', 117 cards, 1 section, active class ..."
python -c "... click 'All' tab again ... assert back to 762/17 sections ..."python -m pip install pytest
python -m pytest tests/ -v
# → 6/6 passed: can_afford at the boundary and just past it; place_order succeeds and
# updates spend; over-budget refused and not recorded; unknown product rejected.Checked real account state before designing a live (not just unit-tested) demonstration:
python -c "import db; [print(u, db.get_spent(u), len(db.get_orders(u))) for u in ('alice','bob','carla')]"
# → bob and carla were both untouched ($0 spent) — picked bob for a clean test.
python -c "import db; [print(dict(r)) for r in db.get_shop_conn().execute('SELECT id,name,price FROM products ORDER BY price DESC LIMIT 3')]"
# → found a $2722 item (under bob's $3000 budget) and a $2672 item (over what would be left)python app.py &
python -c "
... buy product 754 ($2722) → 'Order placed...', remaining drops to $278.00
... buy product 586 ($2672) → 'That order is $2672.00 but you only have $278.00 left in
your budget.', remaining STAYS at $278.00 — confirms the blocked order wrote nothing.
"which ngrok # → already on PATH
find ~/ -iname "ngrok*"; find Downloads -iname "ngrok*" # also found an unextracted zip in Downloads
ngrok version # → 3.39.9 — the PATH one was real and working, used that
ngrok config add-authtoken <redacted>
# → "Authtoken saved to configuration file: C:\Users\vel044\AppData\Local\ngrok\ngrok.yml"
# (ngrok's own config directory — never written into this repo)Diagnosed the reported "ngrok not working" issue before touching anything:
curl -sS -o /dev/null -w "%{http_code}" http://127.0.0.1:5000/health # → 404
netstat -ano | grep ":5000" # → something WAS listening
# → the app was fine; it simply never had a /health route. Added one (no @login_required,
# since health checks shouldn't need a session), confirmed the running dev server's
# auto-reloader picked it up without a manual restart:
curl -sS -o /dev/null -w "%{http_code}" http://127.0.0.1:5000/health # → 200ngrok http 5000 --log stdout > /tmp/ngrok.log &
disown
sleep 3
curl -s http://127.0.0.1:4040/api/tunnels
# → public_url: https://almighty-pessimist-vanilla.ngrok-free.dev
curl -sS -o /dev/null -w "%{http_code}" https://almighty-pessimist-vanilla.ngrok-free.dev/health
# → 200 — confirmed end-to-end through the tunnel, not just localhost, before handing the
# URL back.