CD-2: Fetch/clean recipes and calorie data from API's

[farnaf]

The information that the user sees for the recipes on the website might come from various sources. For the meal prep app, the user likes to see (a) recipe details (e.g., ingredients, instructions) (b) calorie information on the web app. Fetch/clean/store this data on firebase, using any available API's that exist.

• To start this issue, we need to design an appropriate structure for the recipes database (both general and private recipes), I recommend looking over some recipe APIs to know how they structure theirs. And make sure the frontend people understand how to use the json file that we're going to fetch. In case the recipe doesn't have any calories, we need to find out a way to have calories in our recipes.
• Once we have this, we can set up a quick backend meeting to discuss about interacting with firebase database or you can read the firebase docs (their features are documented really well).

[farnaf]

Assigned to @yok029 and @Derrick2000