app.py

from flask import Flask, request, redirect, url_for, render_template, session, jsonify, abort
from user import *
from barcode_reader import *
import requests
from PIL import Image
import io
import base64
from flask_cors import CORS

app = Flask("server")
CORS(app)
app.config['CORS_HEADERS'] = 'Content-Type'

@app.route('/calculate/initial', methods=['POST'])
def calculate_initial():
    user = request.json
    nutrients = calculate_initial_nutrients(user)
    return jsonify(nutrients)

@app.route('/item/barcode', methods=['POST'])
def get_barcode_data():
    # This receives a raw image data url. Look to Pillow documentation for specific parsing instructions.
    image_keys = request.json
    base64String = base64.b64decode(image_keys['image'])
    image = Image.open(io.BytesIO(base64String))
    product_info = get_barcode_info(image)
    if 'error' in product_info:
        abort(product_info['code'], description=product_info["error"])
    return jsonify(product_info)

@app.route('/item/search', methods=['GET'])
def search():
    item = request.args.get('query')
    item_list = search_items(item)
    return item_list.json()

@app.route('/item/info', methods=['GET'])
def get_search_data():
    fdcid = request.args.get('fdcid')
    product_info = get_fdcid_info(fdcid)
    return jsonify(product_info)

@app.route('/item/add', methods=['POST'])
def add_item():
    food = request.json['food']
    nutrients = request.json['nutrients']
    if food['type'] == "barcode":
        nutrients = add_item_barcode(food['id'], nutrients)
    elif food['type'] == "fdcid":
        nutrients = add_item_fdcid(food['id'], nutrients)
    return jsonify(nutrients)

@app.route('/item/delete', methods=['POST'])
def delete_item():
    food = request.json['food']
    nutrients = request.json['nutrients']
    if food['type'] == "barcode":
        nutrients = delete_item_barcode(food['id'], nutrients)
    elif food['type'] == "fdcid":
        nutrients = delete_item_fdcid(food['id'], nutrients)
    return jsonify(nutrients)

@app.route('/')
def home():
    return 'Recovery Backend'