Initial commit

.gitignore

@@ -0,0 +1,3 @@
+.venv
+data
+**/__pycache__

book.py

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+import requests
+import json
+
+class Book:
+    def __init__(self, isbn):
+        if isbn is None:
+            return None
+
+        try:
+            int(isbn)
+        except ValueError:
+            raise ValueError("ISBN must be an int")
+
+        self.isbn = isbn
+        self.title = None
+        self.publisher = None
+        self.publish_date = None
+        self.author = None
+
+    def _openlibrary_load(self):
+        r = requests.get(f"https://openlibrary.org/api/books?bibkeys=ISBN:{self.isbn}&jscmd=details&format=json")
+
+        if r.status_code != 200:
+            raise requests.RequestException(f"Got an error on the request. Status code: {r.status_code}")
+
+        data = json.loads(r.content)
+
+        if f"ISBN:{self.isbn}" not in data:
+            raise KeyError("Not found in OpenLibrary")
+
+        isbn_data = data[f"ISBN:{self.isbn}"]
+
+        self.title = isbn_data["details"]["title"]
+        if "publishers" in isbn_data["details"] and len(isbn_data["details"]["publishers"]) > 0:
+            self.publisher = isbn_data["details"]["publishers"][0]
+        
+        if "authors" in isbn_data["details"] and len(isbn_data["details"]["authors"]) > 0:
+            self.author = isbn_data["details"]["authors"][0]["name"]
+
+        if "publish_date" in isbn_data["details"]:
+            self.publish_date = isbn_data["details"]["publish_date"]
+
+
+    def _manual_load(self, title, publisher=None, publish_date=None, author=None):
+        self.title = title
+        self.publisher = publisher
+        self.publish_date = publish_date
+        self.author = author
+
+    def load(self, loader="openlibrary"):
+        if loader == "openlibrary":
+            return self._openlibrary_load()
+
+    def __repr__(self):
+        if self.title is None:
+            return f"<Book: ISBN:{self.isbn}>"
+        return f"<Book: {self.title}>"

requirements.txt

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+flask
+sqlite3