feat(api): API Functional

src/api/main.py

@@ -0,0 +1,47 @@
+from fastapi import FastAPI
+from fastapi.responses import StreamingResponse
+from ebooklib import epub
+from create_book import retrieve_story, set_cover, set_metadata, add_chapters
+import tempfile
+from io import BytesIO
+
+app = FastAPI()
+
+
+@app.get("/download/{story_id}")
+async def download_book(story_id: int):
+    data = await retrieve_story(story_id)
+    book = epub.EpubBook()
+
+    # Metadata and Cover are updated
+    set_metadata(book, data)
+    await set_cover(book, data)
+    # print("Metadata Downloaded")
+
+    # Chapters are downloaded
+    async for title in add_chapters(book, data):
+        # print(f"Part ({title}) downloaded")
+        ...
+
+    # Book is compiled
+    temp_file = tempfile.NamedTemporaryFile(
+        dir=".", suffix=".epub", delete=True
+    )  # Thanks https://stackoverflow.com/a/75398222
+
+    # create epub file
+    epub.write_epub(temp_file, book, {})
+
+    temp_file.file.seek(0)
+    book_data = temp_file.file.read()
+
+    return StreamingResponse(
+        BytesIO(book_data),
+        media_type="application/epub+zip",
+        headers={"Content-Disposition": f'attachment; filename="book_{story_id}.epub"'},
+    )
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run(app, host="0.0.0.0", port=80)