From 40cbde78e0fab2c97260122a7ab711e1cf04c7b8 Mon Sep 17 00:00:00 2001 From: "Dustin C. Hatch" Date: Sun, 16 Jan 2022 20:57:14 -0600 Subject: [PATCH] backend: Begin web API server The web API server is built using FastAPI. Although there are several issues with the framework, and it is basically unmaintained at this point, I still like it better than the alternatives. Django is too big and cumbersome, and its async story still needs improvement. I do not like Flask at all. Starlette would be great, but OpenAPI spec generation is too useful to give up, and the solutions for Starlette are not nearly as good as FastAPI, even with its bugs and limitations. Ultimately, the development experience with FastAPI is unmatched, and for this project, I want to develop quickly. --- backend/.vscode/launch.json | 18 +++ backend/poetry.lock | 188 +++++++++++++++++++++++++++- backend/pyproject.toml | 2 + backend/src/lycodon/api/__init__.py | 0 backend/src/lycodon/api/context.py | 25 ++++ backend/src/lycodon/api/main.py | 36 ++++++ 6 files changed, 267 insertions(+), 2 deletions(-) create mode 100644 backend/.vscode/launch.json create mode 100644 backend/src/lycodon/api/__init__.py create mode 100644 backend/src/lycodon/api/context.py create mode 100644 backend/src/lycodon/api/main.py diff --git a/backend/.vscode/launch.json b/backend/.vscode/launch.json new file mode 100644 index 0000000..4ff0425 --- /dev/null +++ b/backend/.vscode/launch.json @@ -0,0 +1,18 @@ +{ + // Use IntelliSense to learn about possible attributes. + // Hover to view descriptions of existing attributes. + // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 + "version": "0.2.0", + "configurations": [ + { + "name": "Backend: Web API", + "type": "python", + "request": "launch", + "module": "uvicorn", + "args": [ + "lycodon.api.main:app" + ], + "jinja": false + } + ] +} diff --git a/backend/poetry.lock b/backend/poetry.lock index 9e660aa..eed8dbc 100644 --- a/backend/poetry.lock +++ b/backend/poetry.lock @@ -1,3 +1,31 @@ +[[package]] +name = "anyio" +version = "3.5.0" +description = "High level compatibility layer for multiple asynchronous event loop implementations" +category = "main" +optional = false +python-versions = ">=3.6.2" + +[package.dependencies] +idna = ">=2.8" +sniffio = ">=1.1" + +[package.extras] +doc = ["packaging", "sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"] +test = ["coverage[toml] (>=4.5)", "hypothesis (>=4.0)", "pytest (>=6.0)", "pytest-mock (>=3.6.1)", "trustme", "contextlib2", "uvloop (<0.15)", "mock (>=4)", "uvloop (>=0.15)"] +trio = ["trio (>=0.16)"] + +[[package]] +name = "asgiref" +version = "3.4.1" +description = "ASGI specs, helper code, and adapters" +category = "dev" +optional = false +python-versions = ">=3.6" + +[package.extras] +tests = ["pytest", "pytest-asyncio", "mypy (>=0.800)"] + [[package]] name = "astroid" version = "2.9.3" @@ -56,6 +84,24 @@ category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" +[[package]] +name = "fastapi" +version = "0.72.0" +description = "FastAPI framework, high performance, easy to learn, fast to code, ready for production" +category = "main" +optional = false +python-versions = ">=3.6.1" + +[package.dependencies] +pydantic = ">=1.6.2,<1.7 || >1.7,<1.7.1 || >1.7.1,<1.7.2 || >1.7.2,<1.7.3 || >1.7.3,<1.8 || >1.8,<1.8.1 || >1.8.1,<2.0.0" +starlette = "0.17.1" + +[package.extras] +all = ["requests (>=2.24.0,<3.0.0)", "jinja2 (>=2.11.2,<4.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "itsdangerous (>=1.1.0,<3.0.0)", "pyyaml (>=5.3.1,<6.0.0)", "ujson (>=4.0.1,<5.0.0)", "orjson (>=3.2.1,<4.0.0)", "email_validator (>=1.1.1,<2.0.0)", "uvicorn[standard] (>=0.12.0,<0.16.0)"] +dev = ["python-jose[cryptography] (>=3.3.0,<4.0.0)", "passlib[bcrypt] (>=1.7.2,<2.0.0)", "autoflake (>=1.4.0,<2.0.0)", "flake8 (>=3.8.3,<4.0.0)", "uvicorn[standard] (>=0.12.0,<0.16.0)"] +doc = ["mkdocs (>=1.1.2,<2.0.0)", "mkdocs-material (>=8.1.4,<9.0.0)", "mdx-include (>=1.4.1,<2.0.0)", "mkdocs-markdownextradata-plugin (>=0.1.7,<0.3.0)", "typer-cli (>=0.0.12,<0.0.13)", "pyyaml (>=5.3.1,<6.0.0)"] +test = ["pytest (>=6.2.4,<7.0.0)", "pytest-cov (>=2.12.0,<4.0.0)", "mypy (==0.910)", "flake8 (>=3.8.3,<4.0.0)", "black (==21.9b0)", "isort (>=5.0.6,<6.0.0)", "requests (>=2.24.0,<3.0.0)", "httpx (>=0.14.0,<0.19.0)", "email_validator (>=1.1.1,<2.0.0)", "sqlalchemy (>=1.3.18,<1.5.0)", "peewee (>=3.13.3,<4.0.0)", "databases[sqlite] (>=0.3.2,<0.6.0)", "orjson (>=3.2.1,<4.0.0)", "ujson (>=4.0.1,<5.0.0)", "python-multipart (>=0.0.5,<0.0.6)", "flask (>=1.1.2,<3.0.0)", "anyio[trio] (>=3.2.1,<4.0.0)", "types-ujson (==0.1.1)", "types-orjson (==3.6.0)", "types-dataclasses (==0.1.7)"] + [[package]] name = "flake8" version = "4.0.1" @@ -69,6 +115,22 @@ mccabe = ">=0.6.0,<0.7.0" pycodestyle = ">=2.8.0,<2.9.0" pyflakes = ">=2.4.0,<2.5.0" +[[package]] +name = "h11" +version = "0.12.0" +description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1" +category = "dev" +optional = false +python-versions = ">=3.6" + +[[package]] +name = "idna" +version = "3.3" +description = "Internationalized Domain Names in Applications (IDNA)" +category = "main" +optional = false +python-versions = ">=3.5" + [[package]] name = "isort" version = "5.10.1" @@ -152,6 +214,21 @@ category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" +[[package]] +name = "pydantic" +version = "1.9.0" +description = "Data validation and settings management using python 3.6 type hinting" +category = "main" +optional = false +python-versions = ">=3.6.1" + +[package.dependencies] +typing-extensions = ">=3.7.4.3" + +[package.extras] +dotenv = ["python-dotenv (>=0.10.4)"] +email = ["email-validator (>=1.0.3)"] + [[package]] name = "pyflakes" version = "2.4.0" @@ -188,6 +265,28 @@ python-versions = "*" [package.extras] dev = ["build", "pytest", "pytest-timeout"] +[[package]] +name = "sniffio" +version = "1.2.0" +description = "Sniff out which async library your code is running under" +category = "main" +optional = false +python-versions = ">=3.5" + +[[package]] +name = "starlette" +version = "0.17.1" +description = "The little ASGI library that shines." +category = "main" +optional = false +python-versions = ">=3.6" + +[package.dependencies] +anyio = ">=3.0.0,<4" + +[package.extras] +full = ["itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests"] + [[package]] name = "toml" version = "0.10.2" @@ -208,10 +307,26 @@ python-versions = ">=3.6" name = "typing-extensions" version = "4.0.1" description = "Backported and Experimental Type Hints for Python 3.6+" -category = "dev" +category = "main" optional = false python-versions = ">=3.6" +[[package]] +name = "uvicorn" +version = "0.17.0" +description = "The lightning-fast ASGI server." +category = "dev" +optional = false +python-versions = "*" + +[package.dependencies] +asgiref = ">=3.4.0" +click = ">=7.0" +h11 = ">=0.8" + +[package.extras] +standard = ["websockets (>=10.0)", "httptools (>=0.2.0,<0.4.0)", "watchgod (>=0.6)", "python-dotenv (>=0.13)", "PyYAML (>=5.1)", "uvloop (>=0.14.0,!=0.15.0,!=0.15.1)", "colorama (>=0.4)"] + [[package]] name = "wrapt" version = "1.13.3" @@ -223,9 +338,17 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7" [metadata] lock-version = "1.1" python-versions = "^3.8" -content-hash = "257637b1d644fbb27b0b60ab46025c5dd315bc361de01260ef847c828bcc189d" +content-hash = "df11d0f4224710aaac189390a0ab2d3aea8141cef77ad7c933cc3f754dfc5f06" [metadata.files] +anyio = [ + {file = "anyio-3.5.0-py3-none-any.whl", hash = "sha256:b5fa16c5ff93fa1046f2eeb5bbff2dad4d3514d6cda61d02816dba34fa8c3c2e"}, + {file = "anyio-3.5.0.tar.gz", hash = "sha256:a0aeffe2fb1fdf374a8e4b471444f0f3ac4fb9f5a5b542b48824475e0042a5a6"}, +] +asgiref = [ + {file = "asgiref-3.4.1-py3-none-any.whl", hash = "sha256:ffc141aa908e6f175673e7b1b3b7af4fdb0ecb738fc5c8b88f69f055c2415214"}, + {file = "asgiref-3.4.1.tar.gz", hash = "sha256:4ef1ab46b484e3c706329cedeff284a5d40824200638503f5768edb6de7d58e9"}, +] astroid = [ {file = "astroid-2.9.3-py3-none-any.whl", hash = "sha256:506daabe5edffb7e696ad82483ad0228245a9742ed7d2d8c9cdb31537decf9f6"}, {file = "astroid-2.9.3.tar.gz", hash = "sha256:1efdf4e867d4d8ba4a9f6cf9ce07cd182c4c41de77f23814feb27ca93ca9d877"}, @@ -242,10 +365,22 @@ colorama = [ {file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"}, {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"}, ] +fastapi = [ + {file = "fastapi-0.72.0-py3-none-any.whl", hash = "sha256:7421a2f30e9ed1866874cff089733d4f9a0cd4f49b6ea3995c0de75e32bbb52f"}, + {file = "fastapi-0.72.0.tar.gz", hash = "sha256:019ec52c00581bc055e6dfb621aaa9c2a56007c283839305412e1073a777eaf1"}, +] flake8 = [ {file = "flake8-4.0.1-py2.py3-none-any.whl", hash = "sha256:479b1304f72536a55948cb40a32dce8bb0ffe3501e26eaf292c7e60eb5e0428d"}, {file = "flake8-4.0.1.tar.gz", hash = "sha256:806e034dda44114815e23c16ef92f95c91e4c71100ff52813adf7132a6ad870d"}, ] +h11 = [ + {file = "h11-0.12.0-py3-none-any.whl", hash = "sha256:36a3cb8c0a032f56e2da7084577878a035d3b61d104230d4bd49c0c6b555a9c6"}, + {file = "h11-0.12.0.tar.gz", hash = "sha256:47222cb6067e4a307d535814917cd98fd0a57b6788ce715755fa2b6c28b56042"}, +] +idna = [ + {file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"}, + {file = "idna-3.3.tar.gz", hash = "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"}, +] isort = [ {file = "isort-5.10.1-py3-none-any.whl", hash = "sha256:6f62d78e2f89b4500b080fe3a81690850cd254227f27f75c3a0c491a1f351ba7"}, {file = "isort-5.10.1.tar.gz", hash = "sha256:e8443a5e7a020e9d7f97f1d7d9cd17c88bcb3bc7e218bf9cf5095fe550be2951"}, @@ -331,6 +466,43 @@ pycodestyle = [ {file = "pycodestyle-2.8.0-py2.py3-none-any.whl", hash = "sha256:720f8b39dde8b293825e7ff02c475f3077124006db4f440dcbc9a20b76548a20"}, {file = "pycodestyle-2.8.0.tar.gz", hash = "sha256:eddd5847ef438ea1c7870ca7eb78a9d47ce0cdb4851a5523949f2601d0cbbe7f"}, ] +pydantic = [ + {file = "pydantic-1.9.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:cb23bcc093697cdea2708baae4f9ba0e972960a835af22560f6ae4e7e47d33f5"}, + {file = "pydantic-1.9.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:1d5278bd9f0eee04a44c712982343103bba63507480bfd2fc2790fa70cd64cf4"}, + {file = "pydantic-1.9.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:ab624700dc145aa809e6f3ec93fb8e7d0f99d9023b713f6a953637429b437d37"}, + {file = "pydantic-1.9.0-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:c8d7da6f1c1049eefb718d43d99ad73100c958a5367d30b9321b092771e96c25"}, + {file = "pydantic-1.9.0-cp310-cp310-musllinux_1_1_i686.whl", hash = "sha256:3c3b035103bd4e2e4a28da9da7ef2fa47b00ee4a9cf4f1a735214c1bcd05e0f6"}, + {file = "pydantic-1.9.0-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:3011b975c973819883842c5ab925a4e4298dffccf7782c55ec3580ed17dc464c"}, + {file = "pydantic-1.9.0-cp310-cp310-win_amd64.whl", hash = "sha256:086254884d10d3ba16da0588604ffdc5aab3f7f09557b998373e885c690dd398"}, + {file = "pydantic-1.9.0-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:0fe476769acaa7fcddd17cadd172b156b53546ec3614a4d880e5d29ea5fbce65"}, + {file = "pydantic-1.9.0-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c8e9dcf1ac499679aceedac7e7ca6d8641f0193c591a2d090282aaf8e9445a46"}, + {file = "pydantic-1.9.0-cp36-cp36m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:d1e4c28f30e767fd07f2ddc6f74f41f034d1dd6bc526cd59e63a82fe8bb9ef4c"}, + {file = "pydantic-1.9.0-cp36-cp36m-musllinux_1_1_i686.whl", hash = "sha256:c86229333cabaaa8c51cf971496f10318c4734cf7b641f08af0a6fbf17ca3054"}, + {file = "pydantic-1.9.0-cp36-cp36m-musllinux_1_1_x86_64.whl", hash = "sha256:c0727bda6e38144d464daec31dff936a82917f431d9c39c39c60a26567eae3ed"}, + {file = "pydantic-1.9.0-cp36-cp36m-win_amd64.whl", hash = "sha256:dee5ef83a76ac31ab0c78c10bd7d5437bfdb6358c95b91f1ba7ff7b76f9996a1"}, + {file = "pydantic-1.9.0-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:d9c9bdb3af48e242838f9f6e6127de9be7063aad17b32215ccc36a09c5cf1070"}, + {file = "pydantic-1.9.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2ee7e3209db1e468341ef41fe263eb655f67f5c5a76c924044314e139a1103a2"}, + {file = "pydantic-1.9.0-cp37-cp37m-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:0b6037175234850ffd094ca77bf60fb54b08b5b22bc85865331dd3bda7a02fa1"}, + {file = "pydantic-1.9.0-cp37-cp37m-musllinux_1_1_i686.whl", hash = "sha256:b2571db88c636d862b35090ccf92bf24004393f85c8870a37f42d9f23d13e032"}, + {file = "pydantic-1.9.0-cp37-cp37m-musllinux_1_1_x86_64.whl", hash = "sha256:8b5ac0f1c83d31b324e57a273da59197c83d1bb18171e512908fe5dc7278a1d6"}, + {file = "pydantic-1.9.0-cp37-cp37m-win_amd64.whl", hash = "sha256:bbbc94d0c94dd80b3340fc4f04fd4d701f4b038ebad72c39693c794fd3bc2d9d"}, + {file = "pydantic-1.9.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:e0896200b6a40197405af18828da49f067c2fa1f821491bc8f5bde241ef3f7d7"}, + {file = "pydantic-1.9.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:7bdfdadb5994b44bd5579cfa7c9b0e1b0e540c952d56f627eb227851cda9db77"}, + {file = "pydantic-1.9.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:574936363cd4b9eed8acdd6b80d0143162f2eb654d96cb3a8ee91d3e64bf4cf9"}, + {file = "pydantic-1.9.0-cp38-cp38-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:c556695b699f648c58373b542534308922c46a1cda06ea47bc9ca45ef5b39ae6"}, + {file = "pydantic-1.9.0-cp38-cp38-musllinux_1_1_i686.whl", hash = "sha256:f947352c3434e8b937e3aa8f96f47bdfe6d92779e44bb3f41e4c213ba6a32145"}, + {file = "pydantic-1.9.0-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:5e48ef4a8b8c066c4a31409d91d7ca372a774d0212da2787c0d32f8045b1e034"}, + {file = "pydantic-1.9.0-cp38-cp38-win_amd64.whl", hash = "sha256:96f240bce182ca7fe045c76bcebfa0b0534a1bf402ed05914a6f1dadff91877f"}, + {file = "pydantic-1.9.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:815ddebb2792efd4bba5488bc8fde09c29e8ca3227d27cf1c6990fc830fd292b"}, + {file = "pydantic-1.9.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:6c5b77947b9e85a54848343928b597b4f74fc364b70926b3c4441ff52620640c"}, + {file = "pydantic-1.9.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:4c68c3bc88dbda2a6805e9a142ce84782d3930f8fdd9655430d8576315ad97ce"}, + {file = "pydantic-1.9.0-cp39-cp39-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:5a79330f8571faf71bf93667d3ee054609816f10a259a109a0738dac983b23c3"}, + {file = "pydantic-1.9.0-cp39-cp39-musllinux_1_1_i686.whl", hash = "sha256:f5a64b64ddf4c99fe201ac2724daada8595ada0d102ab96d019c1555c2d6441d"}, + {file = "pydantic-1.9.0-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:a733965f1a2b4090a5238d40d983dcd78f3ecea221c7af1497b845a9709c1721"}, + {file = "pydantic-1.9.0-cp39-cp39-win_amd64.whl", hash = "sha256:2cc6a4cb8a118ffec2ca5fcb47afbacb4f16d0ab8b7350ddea5e8ef7bcc53a16"}, + {file = "pydantic-1.9.0-py3-none-any.whl", hash = "sha256:085ca1de245782e9b46cefcf99deecc67d418737a1fd3f6a4f511344b613a5b3"}, + {file = "pydantic-1.9.0.tar.gz", hash = "sha256:742645059757a56ecd886faf4ed2441b9c0cd406079c2b4bee51bcc3fbcd510a"}, +] pyflakes = [ {file = "pyflakes-2.4.0-py2.py3-none-any.whl", hash = "sha256:3bb3a3f256f4b7968c9c788781e4ff07dce46bdf12339dcda61053375426ee2e"}, {file = "pyflakes-2.4.0.tar.gz", hash = "sha256:05a85c2872edf37a4ed30b0cce2f6093e1d0581f8c19d7393122da7e25b2b24c"}, @@ -343,6 +515,14 @@ rope = [ {file = "rope-0.22.0-py3-none-any.whl", hash = "sha256:2847220bf72ead09b5abe72b1edc9cacff90ab93663ece06913fc97324167870"}, {file = "rope-0.22.0.tar.gz", hash = "sha256:b00fbc064a26fc62d7220578a27fd639b2fad57213663cc396c137e92d73f10f"}, ] +sniffio = [ + {file = "sniffio-1.2.0-py3-none-any.whl", hash = "sha256:471b71698eac1c2112a40ce2752bb2f4a4814c22a54a3eed3676bc0f5ca9f663"}, + {file = "sniffio-1.2.0.tar.gz", hash = "sha256:c4666eecec1d3f50960c6bdf61ab7bc350648da6c126e3cf6898d8cd4ddcd3de"}, +] +starlette = [ + {file = "starlette-0.17.1-py3-none-any.whl", hash = "sha256:26a18cbda5e6b651c964c12c88b36d9898481cd428ed6e063f5f29c418f73050"}, + {file = "starlette-0.17.1.tar.gz", hash = "sha256:57eab3cc975a28af62f6faec94d355a410634940f10b30d68d31cb5ec1b44ae8"}, +] toml = [ {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"}, {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"}, @@ -355,6 +535,10 @@ typing-extensions = [ {file = "typing_extensions-4.0.1-py3-none-any.whl", hash = "sha256:7f001e5ac290a0c0401508864c7ec868be4e701886d5b573a9528ed3973d9d3b"}, {file = "typing_extensions-4.0.1.tar.gz", hash = "sha256:4ca091dea149f945ec56afb48dae714f21e8692ef22a395223bcd328961b6a0e"}, ] +uvicorn = [ + {file = "uvicorn-0.17.0-py3-none-any.whl", hash = "sha256:0b89c91bb8fe84c4bded9996af13c4b8c0de799d29bffeaa0c8ad298f2be0934"}, + {file = "uvicorn-0.17.0.tar.gz", hash = "sha256:192c2422b056a3beb512c6c260bf77a7a884204a4ae41856719c1913ead63bbb"}, +] wrapt = [ {file = "wrapt-1.13.3-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:e05e60ff3b2b0342153be4d1b597bbcfd8330890056b9619f4ad6b8d5c96a81a"}, {file = "wrapt-1.13.3-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:85148f4225287b6a0665eef08a178c15097366d46b210574a658c1ff5b377489"}, diff --git a/backend/pyproject.toml b/backend/pyproject.toml index 4570186..e8c02e7 100644 --- a/backend/pyproject.toml +++ b/backend/pyproject.toml @@ -7,6 +7,7 @@ license = "MIT" [tool.poetry.dependencies] python = "^3.8" +fastapi = "^0.72.0" [tool.poetry.dev-dependencies] black = "^21.12b0" @@ -15,6 +16,7 @@ isort = "^5.10.1" mypy = "^0.931" pylint = "^2.12.2" rope = "^0.22.0" +uvicorn = "^0.17.0" [build-system] requires = ["poetry-core>=1.0.0"] diff --git a/backend/src/lycodon/api/__init__.py b/backend/src/lycodon/api/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/backend/src/lycodon/api/context.py b/backend/src/lycodon/api/context.py new file mode 100644 index 0000000..81beb5e --- /dev/null +++ b/backend/src/lycodon/api/context.py @@ -0,0 +1,25 @@ +'''Runtime state context + +The :py:class:`Context` class is instantiated when the web server +process starts and maintains the application's runtime state. The +context is available to request handlers using the +:py:func:`get_context` function via FastAPI dependency injection. + +.. code:: python + + @app.get('/foo') + def get_foo(context: Context = fastapi.Depends(get_context)): + ... +''' +import fastapi + + +class Context: + '''Application context''' + + +def get_context(request: fastapi.Request) -> Context: + '''Dependency function to access the application context''' + + context: Context = request.scope['lycodon_ctx'] + return context diff --git a/backend/src/lycodon/api/main.py b/backend/src/lycodon/api/main.py new file mode 100644 index 0000000..d145e26 --- /dev/null +++ b/backend/src/lycodon/api/main.py @@ -0,0 +1,36 @@ +'''Lycodon Web API Server''' +from typing import Awaitable, Callable + +import fastapi + +from .. import __version__ +from .context import Context + + +app = fastapi.FastAPI( + title='Lycodon', + description='Lycodon is a music library manager.', + version=__version__, + docs_url='/api-doc/', + redoc_url=None, +) + + +# Application context +context = Context() + + +@app.middleware('http') +async def context_middleware( + request: fastapi.Request, + call_next: Callable[[fastapi.Request], Awaitable[fastapi.Response]], +) -> fastapi.Response: + '''Middleware to add the Application Context to the request scope + + This middleware function adds the :py:class:`Context` to the + ASGI request scope. To retrieve it, use + :py:func:`lycodon.api.context.get_context`. + ''' + + request.scope['lycodon_ctx'] = context + return await call_next(request)