233 lines
8.4 KiB
Python
233 lines
8.4 KiB
Python
#!/usr/bin/env python3
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"""
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InvMan Web API
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Web API for InvMan
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"""
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# Imports
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from flask import Flask, jsonify, request
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from flask_api import status
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from sqlalchemy.orm.exc import NoResultFound
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import sqlalchemy
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from libdb import engine, Session, Location, ProductQuantity, Product, Brand
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app = Flask(__name__) # app is the Flask app
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@app.route("/api/v1/locations", methods = ["GET"])
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def get_locations():
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"""Route to get locations"""
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session = Session()
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data = {}
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try:
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for name,desc in session.query(Location.name, Location.description):
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data[name] = {'description': desc}
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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return jsonify(data)
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@app.route("/api/v1/location/name/<search>", methods = ["GET"])
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def api_get_location_information(search):
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"""Route to get information about a location"""
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session = Session()
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try:
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data = session.query(Location.name, Location.description). \
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filter(Location.name == search).one()
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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data2 = {}
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data2['name'] = data.name
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data2['description'] = data.description
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return jsonify(data2)
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@app.route("/api/v1/location/<location>/quantities", methods = ["GET"])
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def api_get_current_quantities(location):
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"""Route to get quantities in a location"""
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session = Session()
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data = {}
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try:
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for upc,quantity in session.query(ProductQuantity.product_upc, ProductQuantity.quantity) \
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.filter(ProductQuantity.location == location).all():
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data[upc] = quantity
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return jsonify(data)
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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@app.route("/api/v1/location/<location>/quantity/<searchmethod>/<search>", methods = ["GET"])
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def api_get_quantity_of_product_in_location(location, searchmethod, search):
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"""Route to get the quantity of a product at a location"""
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session = Session()
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try:
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if searchmethod == 'upc':
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data = session.query(ProductQuantity.quantity).filter(
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ProductQuantity.location == location,
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ProductQuantity.product_upc == search).one()
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return jsonify(data[0])
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elif searchmethod == 'name':
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data = session.query(ProductQuantity.quantity).filter(
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ProductQuantity.location == location,
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ProductQuantity.name == search).one()
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return jsonify(data[0])
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else:
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print("invalid search method, sending 400")
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return jsonify({'error': 'INVALID_SEARCH_METHOD'}), status.HTTP_400_BAD_REQUEST
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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@app.route("/api/v1/products", methods = ["GET"])
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def api_get_products():
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"""Route to get a list of products"""
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session = Session()
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try:
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data = {}
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for upc, brand, name, size, sizeunit, description in session.query(
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Product.upc, Product.brand, Product.name,
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Product.size, Product.sizeunit, Product.description).all():
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data[upc] = {'brand': brand, 'name': name, 'size': size,
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'sizeunit': sizeunit, 'description': description}
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return jsonify(data)
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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@app.route("/api/v1/product/<searchmethod>/<search>", methods = ["GET"])
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def api_get_product_information(searchmethod, search):
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"""Route to get a information about a product"""
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session = Session()
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try:
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if searchmethod == 'name':
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result = session.query(Product.upc, Product.brand, Product.name,
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Product.size, Product.sizeunit, Product.description).filter(
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Product.name == search
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).one()
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data = {'upc': result[0], 'brand': result[1], 'name': result[2], 'size': result[3],
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'sizeunit': result[4], 'description': result[5]}
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return jsonify(data)
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if searchmethod == 'upc':
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result = session.query(Product.upc, Product.brand, Product.name,
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Product.size, Product.sizeunit, Product.description).filter(
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Product.upc == search
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).one()
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data = {'upc': result[0], 'brand': result[1], 'name': result[2], 'size': result[3],
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'sizeunit': result[4], 'description': result[5]}
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return jsonify(data)
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else:
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print("invalid search method, sending 400")
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return jsonify({'error': 'INVALID_SEARCH_METHOD'}), status.HTTP_400_BAD_REQUEST
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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@app.route("/api/v1/brands", methods = ["GET"])
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def api_list_brands():
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"""Route to list all brands"""
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session = Session()
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try:
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data = {}
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for name, description in session.query(Brand.name, Brand.description).all():
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data[name] = {'description': description}
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return jsonify(data)
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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@app.route("/api/v1/brand/name/<search>", methods = ["GET"])
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def api_get_brand_by_name(search):
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"""Route to get information about a location"""
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session = Session()
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try:
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data = session.query(Brand.name, Brand.description). \
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filter(Brand.name == search).one()
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except NoResultFound:
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return jsonify({'error': 'NO_RESULT_FOUND'}), status.HTTP_404_NOT_FOUND
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data2 = {'name': data.name, 'description': data.description}
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return jsonify(data2)
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@app.route("/api/v1/create_location", methods = ["POST"])
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def api_create_location():
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"""Route to create a new location"""
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session = Session()
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if "name" not in request.form:
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return jsonify({'error': 'NO_NAME_PROVIDED'}), status.HTTP_400_BAD_REQUEST
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else:
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locname = request.form['name']
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if "description" in request.form:
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locdesc = request.form['description']
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else:
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locdesc = None
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ins = sqlalchemy.insert(Location).values(name=locname, description=locdesc)
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print(f"ins is {ins}")
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session.execute(ins)
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print("executed ins")
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session.commit()
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print("committed")
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return jsonify({'api_endpoint': f'/api/v1/location/name/{locname}'})
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@app.route("/api/v1/create_brand", methods = ["POST"])
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def api_create_brand():
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"""Route to create a new brand"""
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session = Session()
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if "name" not in request.form:
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return jsonify({'error': 'NO_NAME_PROVIDED'}), status.HTTP_400_BAD_REQUEST
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else:
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brandname = request.form['name']
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if "description" in request.form:
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branddesc = request.form['description']
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else:
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branddesc = None
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ins = sqlalchemy.insert(Brand).values(name=brandname, description=branddesc)
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print(f"ins is {ins}")
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session.execute(ins)
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print("executed ins")
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session.commit()
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print("committed")
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return jsonify({'api_endpoints': [f'/api/v1/brand/name/{brandname}']})
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@app.route("/api/v1/create_product", methods = ["POST"])
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def api_create_product():
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"""Route to create a new product"""
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session = Session()
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reqfields = ['upc', 'brand', 'name', 'size', 'sizeunit']
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for field in reqfields:
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if field not in request.form:
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return jsonify({'error': f'NO_{field.upper()}_PROVIDED'}), status.HTTP_400_BAD_REQUEST
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if "description" in request.form:
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desc = request.form['description']
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else:
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desc = None
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ins = sqlalchemy.insert(Product).values(upc=request.form['upc'], brand=request.form['brand'],
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name=request.form['name'], size=request.form['size'],
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sizeunit=request.form['sizeunit'],
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description=desc)
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print(f"ins is {ins}")
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session.execute(ins)
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print("executed ins")
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session.commit()
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print("committed")
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return jsonify({'api_endpoints': [f'/api/v1/product/upc/{request.form["upc"]}',
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f'/api/v1/product/name/{request.form["name"]}']})
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if __name__ == "__main__":
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print("Run with `flask` or a WSGI server!")
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