Deployed to vercel

Updated deployment instructions
Switched to alpine python image

.github/workflows/format.yml

@@ -19,12 +19,10 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 black
+          pip install -r requirements/dev.txt
 
-      - name: Lint with flake8
-        run: |
-          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+      - name: Lint with pylint
+        run: pylint app --extension-pkg-allow-list=lxml
 
       - name: Format with black
         run: black .

.github/workflows/main-ci.yml

@@ -13,12 +13,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v3
-        with:
-          images: ghcr.io/${{ github.repository }}
-
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v1
@@ -44,9 +38,10 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
+
           builder: ${{ steps.buildx.outputs.name }}
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
+
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          tags: ghcr.io/${{ github.repository }}:${{ github.sha }},ghcr.io/${{ github.repository }}:latest

.github/workflows/release-ci.yml

@@ -50,9 +50,11 @@ jobs:
         with:
           context: .
           file: ./Dockerfile
+
           builder: ${{ steps.buildx.outputs.name }}
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
+
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

.gitignore

@@ -1,3 +1,4 @@
 .venv
 __pycache__/
-.vscode
+.vscode
+.vercel

Dockerfile

@@ -1,13 +1,11 @@
-FROM python
+FROM python:alpine
 
 WORKDIR /srv
 
-COPY ./requirements.txt /srv/requirements.txt
+COPY ./requirements /srv/requirements
 
-RUN pip install -r requirements.txt
-
-EXPOSE 80
+RUN pip install -r requirements/prod.txt
 
 COPY ./app /srv/app
 
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]
+CMD uvicorn app.main:app --host 0.0.0.0 --port ${PORT:-8081}

README.md

@@ -10,19 +10,54 @@ Backend for online ebook viewer publite
 
 ## Deploy
 
+Run app locally (development only!)
+
+```bash
+# install requirements
+pip install -r requirements/dev.txt
+
+# run app with uvicorn
+uvicorn app.main:app --reload --port <port>
+```
+
+Run app locally (test prod)
+
+```bash
+# install requirements
+pip install -r requirements/prod.txt
+
+# run app with uvicorn
+uvicorn app.main:app --port <port>
+
+# or
+
+# run with python script
+python run.py
+```
+
 Simple docker deployment
 
 ```bash
-# build docker image 
+# build docker image
 docker build . -t publite_backend
 
 # run it with docker
-docker run -p <port>:80 publite_backend
+docker run -p <port>:8081 publite_backend
 ```
 
 Dokku deployment with image from Docker Hub
 
 ```bash
 dokku apps:create publitebackend
+
+# increase file size limit to be able to upload bigger books
+dokku nginx:set publitebackend client_max_body_size 50m
+
 dokku git:from-image publitebackend publite/backend:latest
-```
+```
+
+# TODO
+
+- Separate epub and fb2 files to python modules
+- Rewrite own `.opf` file parsing to get rid of dependency on EbookLib
+- Add cli interfaces for epub and fb2 libs

api

@@ -0,0 +1 @@
+app

app/epub.py

@@ -1,16 +1,28 @@
-import aiofiles as aiof
+"""
+Module for EPUB file conversion to html
+"""
+
+import html
+import os
 from base64 import b64encode
-from fastapi import HTTPException
-
-import ebooklib
-from ebooklib import epub
-
+from functools import cache
 from tempfile import SpooledTemporaryFile
 
-from .utils import Document_Tokens, strip_whitespace
+import aiofiles
+import ebooklib
+from ebooklib import epub
+from fastapi import HTTPException
+from lxml import etree
+
+from .utils import DocumentTokens, HTMLBook, strip_whitespace
+
+parser = etree.XMLParser(recover=True)
+
+IMAGE = "{http://www.w3.org/2000/svg}image"
+HREF = "{http://www.w3.org/1999/xlink}href"
 
 
-async def epub2html(file: SpooledTemporaryFile) -> str:
+async def epub2html(file: SpooledTemporaryFile) -> HTMLBook:
 
     """
     Splits epub to tokens and joins them to one html file
@@ -22,40 +34,43 @@ async def epub2html(file: SpooledTemporaryFile) -> str:
 
         html_content = epub_tokens2html(spine, tokens)
 
-        return {**(tokens["metadata"]), "content": strip_whitespace(html_content)}
+        return {
+            **(tokens["metadata"]),
+            "content": html_content,
+        }
 
-    except Exception as e:
+    except Exception as err:
         raise HTTPException(
-            status_code=500, detail="Error! Wrong epub file format: " + str(e)
-        )
+            status_code=500, detail="Error! Wrong epub file format: " + str(err)
+        ) from err
 
 
 async def epub_to_tokens(
     file: SpooledTemporaryFile,
-) -> tuple[Document_Tokens, list[tuple[str, str]]]:
+) -> tuple[DocumentTokens, list[tuple[str, str]]]:
 
-    """
-    Passes file content to EbookLib library and parses epub tokens into dict of the following format:
+    r"""
+    Passes file content to EbookLib library and parses epub tokens into dict of
+    the following format:
 
     { "\<file_name\>": "\<file_content\>" }
 
-    Where file content is either plain text for xhtml or base64 encoded data for other formats, prepared for embeding to html
+    Where file content is either plain text for xhtml or base64 encoded data
+    for other formats, prepared for embeding to html
     """
 
     tokens = {}
 
-    async with aiof.tempfile.NamedTemporaryFile() as tmp:
+    async with aiofiles.tempfile.NamedTemporaryFile() as tmp:
         await tmp.write(file.read())
 
-        book = epub.read_epub(tmp.name)
+        # Reading book file
+        reader = epub.EpubReader(tmp.name)
+        book = reader.load()
+        reader.process()
 
-        # Adding book metadata to tokens list
-
-        metadata = {}
-        metadata["title"] = convert_list(book.get_metadata("DC", "title"))
-        metadata["author"] = convert_list(book.get_metadata("DC", "creator"))
-
-        tokens["metadata"] = metadata.copy()
+        tokens["metadata"] = read_metadata(book)
+        tokens["toc"] = {}
 
         # Iterating over Items
 
@@ -63,34 +78,52 @@ async def epub_to_tokens(
             item: epub.EpubItem
 
             item_type = item.get_type()
+            file_path = os.path.join(reader.opf_dir, item.get_name())
 
             if item_type == ebooklib.ITEM_DOCUMENT:
                 # Adding book chapters to tokens list
-                name = item.id
-                tokens[name] = item.get_body_content()
+                name = item.get_id()
+                tokens[file_path] = strip_whitespace(item.get_body_content())
+                tokens["toc"][name] = file_path
 
             elif item_type in (
+                ebooklib.ITEM_AUDIO,
                 ebooklib.ITEM_COVER,
                 ebooklib.ITEM_IMAGE,
-                ebooklib.ITEM_STYLE,
-                ebooklib.ITEM_VIDEO,
                 ebooklib.ITEM_VECTOR,
+                ebooklib.ITEM_VIDEO,
             ):
                 # Adding assets to tokens list
-                name = item.get_name()
+
                 content = item.get_content()
                 media_type = item.media_type
                 b64_content = b64encode(content).decode()
 
-                tokens[name] = f"data:{media_type};base64,{b64_content}"
+                tokens[file_path] = f"data:{media_type};base64,{b64_content}"
 
                 if item_type == ebooklib.ITEM_COVER:
-                    tokens["metadata"]["cover"] = name
+                    tokens["metadata"]["cover"] = file_path
 
     return tokens, book.spine.copy()
 
 
-def convert_list(titles_list: list[tuple[str, dict[str, str]]]):
+def read_metadata(book: epub.EpubBook) -> dict[str, str]:
+    """
+    Reads metadata from xml to dict
+    """
+
+    metadata = {}
+    metadata["title"] = book.get_metadata("DC", "title")[0][0]
+    metadata["author"] = convert_list(book.get_metadata("DC", "creator"))
+
+    return metadata.copy()
+
+
+def convert_list(titles_list: list[tuple[str, dict[str, str]]]) -> str:
+    """
+    Joins titles list to one string
+    """
+
     res = []
     for title_obj in titles_list:
         res.append(title_obj[0])
@@ -98,24 +131,147 @@ def convert_list(titles_list: list[tuple[str, dict[str, str]]]):
     return "; ".join(res)
 
 
-def set_cover(tokens: Document_Tokens):
-    cover_name = tokens["metadata"]["cover"]
+def set_cover(tokens: DocumentTokens) -> None:
+    """
+    Converts cover file name to base64 image stored in `tokens`
+    """
+
+    cover_name = tokens["metadata"].get("cover")
     if cover_name in tokens.keys():
         tokens["metadata"]["cover"] = tokens[cover_name]
 
 
-def epub_tokens2html(spine: list[tuple[str, str]], tokens: Document_Tokens):
+def epub_tokens2html(spine: list[tuple[str, str]], tokens: DocumentTokens) -> bytes:
+    """
+    Joins chapters in `spice` to one html string
+    """
+
+    res = ""
+
+    for name, _ in spine:
+        file_path = tokens["toc"].get(name)
+        if file_path:
+            res += process_xhtml(file_path, tokens)
+
+    return html.unescape(res)
+
+
+def process_xhtml(path: str, tokens: DocumentTokens) -> bytes:
+    """
+    Processes content of one xml body
+    """
+
+    xml: etree.Element = etree.fromstring(tokens[path], parser=parser)
+
+    if xml.tag == "body":
+        xml.tag = "div"
+
+    process_content(xml, path, tokens)
+
+    return (
+        f'<section id="b_{path_to_name(path)}">{etree.tostring(xml).decode()}</section>'
+    )
+
+
+def process_content(node: etree.Element, path: str, tokens: DocumentTokens) -> None:
+    """
+    Recursive function for xml element convertion to valid html
+    """
+
+    # Process universal tags
+
+    if node.get("epub:type"):
+        node.attrib.pop("epub:type")
+    el_id = node.get("id")
+    if el_id:
+        node.set("id", f"{path_to_name(path)}_{el_id}")
+
+    # Tag processing
+
+    if node.tag == "a":
+        process_a_element(node, path)
+
+    elif node.tag == "hgroup":
+        node.tag = "div"
+
+    elif node.tag in ("img", "source", "video", "audio"):
+        process_media_element(node, path, tokens)
+
+    elif node.tag == IMAGE:
+        href = node.get(HREF)
+        media_path = rel_to_abs_path(path, href)
+        if media_path in tokens.keys():
+            node.set(HREF, tokens[media_path])
+
+    elif node.tag == "trigger":
+        node.getparent().remove(node)
+
+    # Recursively run for all children
+
+    for child in node:
+        process_content(child, path, tokens)
+
+
+def process_a_element(node: etree.Element, path: str):
+    r"""
+    Converts `filed` links to ids in \<a\> element
+    """
+
+    href = node.get("href")
+    if href.count(".xhtml") or href.count(".html"):
+        id_pos = href.rfind("#")
+        if id_pos != -1:
+            href_path, el_id = href[:id_pos], href[id_pos:]
+            node.set("href", f"#{path_to_name(href_path)}_{el_id[1:]}")
+        else:
+            node.set("href", f"#b_{path_to_name(href)}")
+    elif href.count("#"):
+        node.set("href", f"#{path_to_name(path)}_{href[1:]}")
+
+
+def process_media_element(node: etree.Element, path: str, tokens: DocumentTokens):
+    """
+    Replaces file paths to base64 encoded media in `src` and `srcset` tags
+    """
+
+    src = node.get("src")
+    attr = "src"
+
+    if not src:
+        src = node.get("srcset")
+        attr = "srcset"
+
+    if src:
+        media_path = rel_to_abs_path(path, src)
+        if media_path in tokens.keys():
+            node.set(attr, tokens[media_path])
+
+
+def rel_to_abs_path(parent: str, rel: str):
+    """
+    Helper for relative path to media convertion to absolute
+    """
+
+    return os.path.normpath(os.path.join(os.path.dirname(parent), rel))
+
+
+@cache
+def path_to_name(path: str) -> str:
+    """
+    Helper function for getting file name
+    """
+
+    return os.path.basename(path).split(".")[0]
+
+
+def children_to_html(root: etree.Element) -> bytes:
+    """
+    Converts all xml children of element to string and joins them
+    """
+
     res = b""
 
-    print(spine)
-
-    for name, enabled in spine:
-        if name in tokens.keys():
-            res += process_xhtml(tokens[name], tokens)
+    for child in root:
+        res += etree.tostring(child)
 
     return res
-
-
-def process_xhtml(xhtml: bytes, tokens: Document_Tokens):
-    # TODO: Add xhtml procession
-    return xhtml

app/fb2.py

@@ -1,11 +1,16 @@
-from tempfile import SpooledTemporaryFile
+"""
+Module for FB2 file conversion to html
+"""
+
+import html
 import xml.etree.ElementTree as ET
-from xml.etree.ElementTree import Element
+from tempfile import SpooledTemporaryFile
 from typing import Optional
+from xml.etree.ElementTree import Element
+
 from fastapi import HTTPException
 
-from .utils import Document_Tokens, strip_whitespace
-
+from .utils import DocumentTokens, HTMLBook, strip_whitespace
 
 namespaces = {
     "": "http://www.gribuser.ru/xml/fictionbook/2.0",
@@ -14,7 +19,7 @@ namespaces = {
 HREF = f"{{{namespaces['xlink']}}}href"
 
 
-async def fb22html(file: SpooledTemporaryFile) -> dict[str, str]:
+async def fb22html(file: SpooledTemporaryFile) -> HTMLBook:
 
     """
     Splits fb2 to tokens and joins them to one html file
@@ -25,17 +30,19 @@ async def fb22html(file: SpooledTemporaryFile) -> dict[str, str]:
         set_cover(tokens)
         html_content = fb2body2html(tokens)
 
-        return {**(tokens["metadata"]), "content": strip_whitespace(html_content)}
+        return {
+            **(tokens["metadata"]),
+            "content": html.unescape(html_content.decode()),
+        }
 
-    except Exception as e:
+    except Exception as err:
         raise HTTPException(
-            status_code=500, detail="Error! Wrong fb2 file format: " + str(e)
-        )
+            status_code=500, detail="Error! Wrong fb2 file format: " + str(err)
+        ) from err
 
 
-def fb22tokens(file: SpooledTemporaryFile) -> Document_Tokens:
-
-    """
+def fb22tokens(file: SpooledTemporaryFile) -> DocumentTokens:
+    r"""
     Parses fb2 file as xml document.
     It puts book metadata, its content and media to `tokens` dictionary and returns it.
 
@@ -70,11 +77,12 @@ def fb22tokens(file: SpooledTemporaryFile) -> Document_Tokens:
         metadata = {}
         metadata["title"] = book_info.find("./book-title", namespaces).text
         metadata["author"] = get_author(book_info.find("./author", namespaces))
-        metadata["cover"] = get_cover(book_info.find("./coverpage", namespaces))
+        metadata["cover"] = get_cover(
+            book_info.find("./coverpage", namespaces))
         if "cover" not in metadata.keys():
             metadata.pop("cover")
 
-        if len(metadata.keys()):
+        if len(metadata.keys()) != 0:
             tokens["metadata"] = metadata.copy()
 
     # Reading book content
@@ -96,7 +104,6 @@ def fb22tokens(file: SpooledTemporaryFile) -> Document_Tokens:
 
 
 def get_author(author: Element) -> str:
-
     """
     Converts author xml structure to string
     """
@@ -107,9 +114,9 @@ def get_author(author: Element) -> str:
         "middle-name",
         "last-name",
     ):
-        el = author.find("./" + tag_name, namespaces)
-        if el is not None:
-            res.append(el.text)
+        tag = author.find("./" + tag_name, namespaces)
+        if tag is not None and tag.text is not None:
+            res.append(tag.text)
     if len(res) == 0:
         res = author.find("./nickname", namespaces).text
     else:
@@ -119,7 +126,6 @@ def get_author(author: Element) -> str:
 
 
 def get_cover(coverpage: Optional[Element]) -> Optional[str]:
-
     """
     Extracts cover image id if exists
     """
@@ -127,8 +133,11 @@ def get_cover(coverpage: Optional[Element]) -> Optional[str]:
     if coverpage:
         return coverpage.find("./image", namespaces).get(HREF)
 
+    return None
 
-def set_cover(tokens: Document_Tokens) -> None:
+
+def set_cover(tokens: DocumentTokens) -> None:
+    """Gets cover from book and sets it in metadata"""
     cover = tokens["metadata"]["cover"]
     if cover is None:
         tokens["metadata"]["cover"] = "none"
@@ -136,34 +145,32 @@ def set_cover(tokens: Document_Tokens) -> None:
         tokens["metadata"]["cover"] = tokens[cover[1:]]
 
 
-def fb2body2html(tokens: Document_Tokens) -> str:
-
+def fb2body2html(tokens: DocumentTokens) -> str:
     """
     Convert fb2 xml to html, joins bodies into one string
     """
 
     res = b""
 
-    xml_root = ET.fromstring(tokens["content"])
+    xml_root = ET.fromstring(strip_whitespace(tokens["content"]))
     for body in xml_root.iterfind("./body"):
         res += process_section(body, tokens)
 
     return res
 
 
-def process_section(body: Element, tokens: Document_Tokens) -> str:
-
+def process_section(body: Element, tokens: DocumentTokens) -> str:
     """
     Processes individual sections, recursively goes throw sections tree
     """
 
     res = b"<section>\n"
 
-    for tag in ("title", "epigraph", "annotation"):
-        el = body.find("./" + tag)
-        if el:
-            process_content(el, tokens)
-            res += children_to_html(el)
+    for tag_name in ("title", "epigraph", "annotation"):
+        tag = body.find("./" + tag_name)
+        if tag:
+            process_content(tag, tokens)
+            res += children_to_html(tag)
     image = body.find("./image")
     if image:
         process_image(image, tokens)
@@ -180,7 +187,6 @@ def process_section(body: Element, tokens: Document_Tokens) -> str:
 
 
 def children_to_html(root: Element) -> str:
-
     """
     Converts xml tag children to string
     """
@@ -193,18 +199,17 @@ def children_to_html(root: Element) -> str:
     return res
 
 
-def process_image(el: Element, tokens: Document_Tokens) -> None:
-
-    """
+def process_image(element: Element, tokens: DocumentTokens) -> None:
+    r"""
     Converts fb2 \<image /\> to html \<img /\>. Replaces xlink:href with src="\<base64_image_data\>"
     """
 
-    el.tag = "img"
+    element.tag = "img"
 
-    href = el.get(HREF)
-    el.attrib.pop(HREF)
+    href = element.get(HREF)
+    element.attrib.pop(HREF)
 
-    el.set("src", tokens[href[1:]] if href[0] == "#" else href)
+    element.set("src", tokens[href[1:]] if href[0] == "#" else href)
 
 
 tag_replacement = {
@@ -219,15 +224,12 @@ tag_with_class = {
     "cite": "div",
     "poem": "div",
     "stanza": "div",
-    "poem": "div",
-    "poem": "div",
     "epigraph": "div",
     "text-author": "p",
 }
 
 
-def process_content(root: Element, tokens: Document_Tokens) -> None:
-
+def process_content(root: Element, tokens: DocumentTokens) -> None:
     """
     Converts fb2 xml tag names to html equivalents and my own styled elements.
     Resolves binary data dependencies

app/main.py

@@ -1,23 +1,68 @@
-from fastapi import FastAPI, File, UploadFile, HTTPException
+"""Webserver for epub and fb2 files convertation to html"""
+
+from datetime import datetime
+
+from fastapi import FastAPI, File, HTTPException, UploadFile
+from fastapi.middleware.cors import CORSMiddleware
+from pydantic import BaseModel  # pylint: disable=no-name-in-module
 
 from .epub import epub2html
 from .fb2 import fb22html
-from .utils import HTMLBook
+from .utils import HashedHTMLBook, add_hash
+
+origins = (
+    "*"
+)
+
+
+class DebugInfo(BaseModel):  # pylint: disable=too-few-public-methods
+    """Main handler return types"""
+
+    startup_time: str
+
 
 app = FastAPI()
 
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
 
-@app.get("/")
+start_time = datetime.now()
+
+
+@app.get("/", response_model=DebugInfo)
 def root():
-    return "Hello, World!"
+    """
+    Test if server is running.
+
+    Returns startup time
+    """
+    return {"startup_time": start_time.isoformat()}
 
 
-@app.post("/uploadfile/", response_model=HTMLBook)
+@app.post("/uploadfile/", response_model=HashedHTMLBook)
 async def create_upload_file(file: UploadFile = File(...)):
+    """
+    Main api handler:
+
+    Accepts files with fb2 and epub extensions
+
+    Returns HTTP 415 error if file has unsupported format
+
+    Else returns object with book metadata and its html
+    """
     if file.filename.endswith(".fb2"):
         content = await fb22html(file.file)
     elif file.filename.endswith(".epub"):
         content = await epub2html(file.file)
     else:
-        raise HTTPException(status_code=415, detail="Error! Unsupported file type")
-    return content
+        raise HTTPException(
+            status_code=415, detail="Error! Unsupported file type")
+
+    h_content = add_hash(content)
+
+    return h_content

app/utils.py

@@ -1,27 +1,58 @@
-from typing import Union, Optional
-from pydantic import BaseModel
+"""
+Utils for publite_backend module
+"""
+
+
 import re
+from hashlib import sha256
+from typing import Optional, Union
 
-Document_Tokens = dict[str, Union[str, dict[str, str]]]
+from pydantic import BaseModel  # pylint: disable=no-name-in-module
+
+DocumentTokens = dict[str, Union[str, dict[str, str]]]
 
 
-class HTMLBook(BaseModel):
+class HTMLBook(BaseModel):  # pylint: disable=too-few-public-methods
+    """Transitional model for returned book data"""
+
     title: str
     author: str
-    cover: Optional[str]
+    cover: Optional[str] = None
     content: str
 
 
+class HashedHTMLBook(HTMLBook):  # pylint: disable=too-few-public-methods
+    """Model for returned book data with content hash"""
+
+    hash: str
+
+
 replacements = [
-    ("
", "\r"),
-    (">\s+?<", "><"),
+    ("&#13;", ""),
+    ("&#17;", ""),
+    (r">\s+?<", "><"),
 ]
 
 
-def strip_whitespace(s: bytes) -> str:
-    res = s.decode()
+def strip_whitespace(string: bytes) -> str:
+
+    """Removes"""
+
+    res = string.decode()
 
     for old, new in replacements:
         res = re.sub(old, new, res)
 
     return res.strip()
+
+
+def add_hash(content: HTMLBook) -> HashedHTMLBook:
+
+    """
+    Adds hash of book content
+    """
+
+    h_content: HashedHTMLBook = content.copy()
+    h_content["hash"] = sha256(content["content"].encode()).hexdigest()
+
+    return h_content

requirements.txt

@@ -1,23 +1 @@
-aiofiles==0.7.0
-appdirs==1.4.4
-asgiref==3.4.0
-black==21.6b0
-click==8.0.1
-EbookLib==0.17.1
-fastapi==0.65.2
-flake8==3.9.2
-h11==0.12.0
-lxml==4.6.3
-mccabe==0.6.1
-mypy-extensions==0.4.3
-pathspec==0.8.1
-pycodestyle==2.7.0
-pydantic==1.8.2
-pyflakes==2.3.1
-python-multipart==0.0.5
-regex==2021.7.1
-six==1.16.0
-starlette==0.14.2
-toml==0.10.2
-typing-extensions==3.10.0.0
-uvicorn==0.14.0
+-r requirements/prod.txt

requirements/dev.txt

@@ -0,0 +1,4 @@
+-r prod.txt
+pylint
+rope
+black

requirements/prod.txt

@@ -0,0 +1,7 @@
+fastapi
+uvicorn
+aiofiles
+ebooklib
+python-multipart
+lxml
+pydantic

run.py

@@ -0,0 +1,4 @@
+import uvicorn
+
+if __name__ == "__main__":
+    uvicorn.run("app.main:app")

vercel.json

@@ -0,0 +1,5 @@
+{
+    "rewrites": [
+        { "source": "/(.*)", "destination": "/api/main"}
+    ]
+}