initial commit

Author: [email protected]

alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

main.py

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+import uvicorn
+from fastapi import FastAPI
+from fastapi_sqlalchemy import DBSessionMiddleware, db
+
+from schema import Book as SchemaBook
+from schema import Author as SchemaAuthor
+
+from schema import Book
+from schema import Author
+
+from models import Book as ModelBook
+from models import Author as ModelAuthor
+
+import os
+from dotenv import load_dotenv
+
+load_dotenv('.env')
+
+
+app = FastAPI()
+
+# to avoid csrftokenError
+app.add_middleware(DBSessionMiddleware, db_url=os.environ['DATABASE_URL'])
+
+@app.get("/")
+async def root():
+    return {"message": "hello world"}
+
+
+@app.post('/book/', response_model=SchemaBook)
+async def book(book: SchemaBook):
+    db_book = ModelBook(title=book.title, rating=book.rating, author_id = book.author_id)
+    db.session.add(db_book)
+    db.session.commit()
+    return db_book
+
+@app.get('/book/')
+async def book():
+    book = db.session.query(ModelBook).all()
+    return book
+
+
+  
+@app.post('/author/', response_model=SchemaAuthor)
+async def author(author:SchemaAuthor):
+    db_author = ModelAuthor(name=author.name, age=author.age)
+    db.session.add(db_author)
+    db.session.commit()
+    return db_author
+
+@app.get('/author/')
+async def author():
+    author = db.session.query(ModelAuthor).all()
+    return author
+
+
+# To run locally
+if __name__ == '__main__':
+    uvicorn.run(app, host='0.0.0.0', port=8000)

models.py

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+from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, Float
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+
+Base  = declarative_base()
+
+class Book(Base):
+    __tablename__ = 'book'
+    id  = Column(Integer, primary_key=True, index=True)
+    title = Column(String)
+    rating = Column(Float)
+    time_created = Column(DateTime(timezone=True), server_default=func.now())
+    time_updated = Column(DateTime(timezone=True), onupdate=func.now())
+    author_id = Column(Integer, ForeignKey('author.id'))
+
+    author = relationship('Author')
+
+
+class Author(Base):
+    __tablename__ = 'author'
+    id = Column(Integer, primary_key=True)
+    name = Column(String)
+    age = Column(Integer)
+    time_created = Column(DateTime(timezone=True), server_default=func.now())
+    time_updated = Column(DateTime(timezone=True), onupdate=func.now())
+
+

schema.py

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+# build a schema using pydantic
+from pydantic import BaseModel
+
+class Book(BaseModel):
+    title: str
+    rating: int
+    author_id: int
+
+    class Config:
+        orm_mode = True
+
+class Author(BaseModel):
+    name:str
+    age:int
+
+    class Config:
+        orm_mode = True
+