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J. Elfring 2023-10-29 11:15:51 +01:00
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.gitignore vendored Normal file
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.DS_Store
.env
.flaskenv
*.pyc
*.pyo
env/
venv/
.venv/
env*
dist/
build/
*.egg
*.egg-info/
.tox/
.cache/
.pytest_cache/
.idea/
docs/_build/
.vscode
/instance/
# Coverage reports
htmlcov/
.coverage
.coverage.*
*,cover

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Dockerfile Normal file
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FROM alpine:latest
LABEL maintainer "J. Elfring <code@elfring.ms>"
RUN apk add --update --no-cache \
ca-certificates \
python3 \
py3-pip \
&& mkdir -p /server/instance \
&& chown -R daemon:daemon /server
ADD ./app /server/app
ADD ./requirements.txt /server/requirements.txt
RUN pip install -r /server/requirements.txt
USER daemon
ENV FLASK_SQLALCHEMY_DATABASE_URI=sqlite:///db.sqlite3
WORKDIR /server
VOLUME /server/instance
EXPOSE 5000
CMD flask run --host 0.0.0.0 --port 5000

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README.md Normal file
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# Home API
Google & Co. really do not need to know any healthdata.
So lets start a home api that stores blood pressure, weight
and lets see what follows.
The apis are documented by swagger.
## Configuration
The server is configured by its environment or a .env file
read by python-dotenv:
```
## Where data will be stored
FLASK_SQLALCHEMY_DATABASE_URI=sqlite:///db.sqlite3
## Docker image and registry
DOCKER_IMAGENAME=code.elfring.ms/elfrinjo/homeapi
```

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app/__init__.py Normal file
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"""Module to run a simple api server"""
from flask import Flask
from .extensions import api, db
from .apiroutes import health_ns
def create_app():
"""Create and run the serverapp."""
app = Flask(__name__)
app.config.from_prefixed_env()
api.init_app(app)
db.init_app(app)
api.add_namespace(health_ns, path="/api/health")
with app.app_context():
db.create_all()
return app

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"""Datamodel for the API"""
from flask_restx import fields, reqparse
from .extensions import api
weight_apimodel = api.model("WeightData",{
"id": fields.Integer,
"created": fields.DateTime,
"device": fields.String,
"weight": fields.Float
})
bp_apimodel = api.model("BpData",{
"id": fields.Integer,
"created": fields.DateTime,
"device": fields.String,
"sys": fields.Float,
"dia": fields.Float,
"pulse": fields.Float
})
bp_parser = reqparse.RequestParser()
bp_parser.add_argument("device", type=str, required=True)
bp_parser.add_argument("sys", type=int, required=True)
bp_parser.add_argument("dia", type=int, required=True)
bp_parser.add_argument("pulse", type=int, required=True)
weight_parser = reqparse.RequestParser()
weight_parser.add_argument("device", type=str, required=True)
weight_parser.add_argument("weight", type=float, required=True)

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app/apiroutes.py Normal file
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"""Routes for the api server"""
from flask_restx import Resource, Namespace
from .apimodel import weight_apimodel, bp_apimodel, bp_parser, weight_parser
from .extensions import db
from .datamodel import WeightData, BpData
health_ns = Namespace("Health")
@health_ns.route("/weight")
class WeightAPI(Resource):
"""API Route /health/weight"""
@health_ns.marshal_list_with(weight_apimodel)
def get(self):
"""List weight datasets"""
return WeightData.query.all()
@health_ns.route("/weight-insert")
class WeightInsertAPI(Resource):
"""API Route /health/weight-insert"""
@health_ns.marshal_list_with(weight_apimodel)
@health_ns.expect(weight_parser)
def get(self):
"""Insert weight dataset by GET"""
weight = WeightData(device=weight_parser.parse_args().device,
weight=weight_parser.parse_args().weight)
db.session.add(weight)
db.session.commit()
return weight, 201
@health_ns.route("/bp")
class BpApi(Resource):
"""API Route bloodpressure"""
@health_ns.marshal_list_with(bp_apimodel)
def get(self):
"""List bloodpressure datasets"""
return BpData.query.all()
@health_ns.route("/bp-insert")
class BpInsertAPI(Resource):
"""API Route /health/bp-insert"""
@health_ns.marshal_list_with(bp_apimodel)
@health_ns.expect(bp_parser)
def get(self):
"""Insert bp dataset by GET"""
bp = BpData(device = bp_parser.parse_args().device,
sys = bp_parser.parse_args().sys,
dia = bp_parser.parse_args().dia,
pulse = bp_parser.parse_args().pulse)
db.session.add(bp)
db.session.commit()
return bp, 201

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"""Datamodel for SQLAlchemy"""
from sqlalchemy import func
from .extensions import db
class WeightData(db.Model):
"""Weight datamodel"""
id = db.Column(db.Integer, primary_key=True)
created = db.Column(db.DateTime(timezone=True), default=func.now())
device = db.Column(db.String(50))
weight = db.Column(db.Float)
class BpData(db.Model):
"""Bloodpressure datamodel"""
id = db.Column(db.Integer, primary_key=True)
created = db.Column(db.DateTime(timezone=True), default=func.now())
device = db.Column(db.String(50))
sys = db.Column(db.Integer)
dia = db.Column(db.Integer)
pulse = db.Column(db.Integer)

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"""Creates the framework objects"""
from flask_sqlalchemy import SQLAlchemy
from flask_restx import Api
api = Api(title = 'elfrinjo\'s Home API',
version = '1.0',
contact = 'code@elfring.ms',
description = 'https://code.elfring.ms/elfrinjo/homeapi'
)
db = SQLAlchemy()

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version: "2"
services:
homeapi:
build: .
image: ${DOCKER_IMAGENAME}
restart: unless-stopped
environment:
- 'FLASK_SQLALCHEMY_DATABASE_URI=sqlite:///db.sqlite3'
volumes:
- ./instance:/server/instance

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pylint.toml Normal file
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[tool.pylint.main]
# Analyse import fallback blocks. This can be used to support both Python 2 and 3
# compatible code, which means that the block might have code that exists only in
# one or another interpreter, leading to false positives when analysed.
# analyse-fallback-blocks =
# Clear in-memory caches upon conclusion of linting. Useful if running pylint in
# a server-like mode.
# clear-cache-post-run =
# Always return a 0 (non-error) status code, even if lint errors are found. This
# is primarily useful in continuous integration scripts.
# exit-zero =
# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code.
# extension-pkg-allow-list =
# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code. (This is an alternative name to extension-pkg-allow-list
# for backward compatibility.)
# extension-pkg-whitelist =
# Return non-zero exit code if any of these messages/categories are detected,
# even if score is above --fail-under value. Syntax same as enable. Messages
# specified are enabled, while categories only check already-enabled messages.
# fail-on =
# Specify a score threshold under which the program will exit with error.
fail-under = 10
# Interpret the stdin as a python script, whose filename needs to be passed as
# the module_or_package argument.
# from-stdin =
# Files or directories to be skipped. They should be base names, not paths.
ignore = ["CVS"]
# Add files or directories matching the regular expressions patterns to the
# ignore-list. The regex matches against paths and can be in Posix or Windows
# format. Because '\\' represents the directory delimiter on Windows systems, it
# can't be used as an escape character.
# ignore-paths =
# Files or directories matching the regular expression patterns are skipped. The
# regex matches against base names, not paths. The default value ignores Emacs
# file locks
ignore-patterns = ["^\\.#"]
# List of module names for which member attributes should not be checked (useful
# for modules/projects where namespaces are manipulated during runtime and thus
# existing member attributes cannot be deduced by static analysis). It supports
# qualified module names, as well as Unix pattern matching.
# ignored-modules =
# Python code to execute, usually for sys.path manipulation such as
# pygtk.require().
# init-hook =
# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
# number of processors available to use, and will cap the count on Windows to
# avoid hangs.
jobs = 1
# Control the amount of potential inferred values when inferring a single object.
# This can help the performance when dealing with large functions or complex,
# nested conditions.
limit-inference-results = 100
# List of plugins (as comma separated values of python module names) to load,
# usually to register additional checkers.
# load-plugins =
# Pickle collected data for later comparisons.
persistent = true
# Minimum Python version to use for version dependent checks. Will default to the
# version used to run pylint.
py-version = "3.11"
# Discover python modules and packages in the file system subtree.
# recursive =
# Add paths to the list of the source roots. Supports globbing patterns. The
# source root is an absolute path or a path relative to the current working
# directory used to determine a package namespace for modules located under the
# source root.
# source-roots =
# When enabled, pylint would attempt to guess common misconfiguration and emit
# user-friendly hints instead of false-positive error messages.
suggestion-mode = true
# Allow loading of arbitrary C extensions. Extensions are imported into the
# active Python interpreter and may run arbitrary code.
# unsafe-load-any-extension =
[tool.pylint.basic]
# Naming style matching correct argument names.
argument-naming-style = "snake_case"
# Regular expression matching correct argument names. Overrides argument-naming-
# style. If left empty, argument names will be checked with the set naming style.
# argument-rgx =
# Naming style matching correct attribute names.
attr-naming-style = "snake_case"
# Regular expression matching correct attribute names. Overrides attr-naming-
# style. If left empty, attribute names will be checked with the set naming
# style.
# attr-rgx =
# Bad variable names which should always be refused, separated by a comma.
bad-names = ["foo", "bar", "baz", "toto", "tutu", "tata"]
# Bad variable names regexes, separated by a comma. If names match any regex,
# they will always be refused
# bad-names-rgxs =
# Naming style matching correct class attribute names.
class-attribute-naming-style = "any"
# Regular expression matching correct class attribute names. Overrides class-
# attribute-naming-style. If left empty, class attribute names will be checked
# with the set naming style.
# class-attribute-rgx =
# Naming style matching correct class constant names.
class-const-naming-style = "UPPER_CASE"
# Regular expression matching correct class constant names. Overrides class-
# const-naming-style. If left empty, class constant names will be checked with
# the set naming style.
# class-const-rgx =
# Naming style matching correct class names.
class-naming-style = "PascalCase"
# Regular expression matching correct class names. Overrides class-naming-style.
# If left empty, class names will be checked with the set naming style.
# class-rgx =
# Naming style matching correct constant names.
const-naming-style = "UPPER_CASE"
# Regular expression matching correct constant names. Overrides const-naming-
# style. If left empty, constant names will be checked with the set naming style.
# const-rgx =
# Minimum line length for functions/classes that require docstrings, shorter ones
# are exempt.
docstring-min-length = -1
# Naming style matching correct function names.
function-naming-style = "snake_case"
# Regular expression matching correct function names. Overrides function-naming-
# style. If left empty, function names will be checked with the set naming style.
# function-rgx =
# Good variable names which should always be accepted, separated by a comma.
good-names = ["i", "j", "k", "ex", "Run", "_"]
# Good variable names regexes, separated by a comma. If names match any regex,
# they will always be accepted
# good-names-rgxs =
# Include a hint for the correct naming format with invalid-name.
# include-naming-hint =
# Naming style matching correct inline iteration names.
inlinevar-naming-style = "any"
# Regular expression matching correct inline iteration names. Overrides
# inlinevar-naming-style. If left empty, inline iteration names will be checked
# with the set naming style.
# inlinevar-rgx =
# Naming style matching correct method names.
method-naming-style = "snake_case"
# Regular expression matching correct method names. Overrides method-naming-
# style. If left empty, method names will be checked with the set naming style.
# method-rgx =
# Naming style matching correct module names.
module-naming-style = "snake_case"
# Regular expression matching correct module names. Overrides module-naming-
# style. If left empty, module names will be checked with the set naming style.
# module-rgx =
# Colon-delimited sets of names that determine each other's naming style when the
# name regexes allow several styles.
# name-group =
# Regular expression which should only match function or class names that do not
# require a docstring.
no-docstring-rgx = "^_"
# List of decorators that produce properties, such as abc.abstractproperty. Add
# to this list to register other decorators that produce valid properties. These
# decorators are taken in consideration only for invalid-name.
property-classes = ["abc.abstractproperty"]
# Regular expression matching correct type alias names. If left empty, type alias
# names will be checked with the set naming style.
# typealias-rgx =
# Regular expression matching correct type variable names. If left empty, type
# variable names will be checked with the set naming style.
# typevar-rgx =
# Naming style matching correct variable names.
variable-naming-style = "snake_case"
# Regular expression matching correct variable names. Overrides variable-naming-
# style. If left empty, variable names will be checked with the set naming style.
# variable-rgx =
[tool.pylint.classes]
# Warn about protected attribute access inside special methods
# check-protected-access-in-special-methods =
# List of method names used to declare (i.e. assign) instance attributes.
defining-attr-methods = ["__init__", "__new__", "setUp", "asyncSetUp", "__post_init__"]
# List of member names, which should be excluded from the protected access
# warning.
exclude-protected = ["_asdict", "_fields", "_replace", "_source", "_make", "os._exit"]
# List of valid names for the first argument in a class method.
valid-classmethod-first-arg = ["cls"]
# List of valid names for the first argument in a metaclass class method.
valid-metaclass-classmethod-first-arg = ["mcs"]
[tool.pylint.design]
# List of regular expressions of class ancestor names to ignore when counting
# public methods (see R0903)
# exclude-too-few-public-methods =
# List of qualified class names to ignore when counting class parents (see R0901)
# ignored-parents =
# Maximum number of arguments for function / method.
max-args = 5
# Maximum number of attributes for a class (see R0902).
max-attributes = 7
# Maximum number of boolean expressions in an if statement (see R0916).
max-bool-expr = 5
# Maximum number of branch for function / method body.
max-branches = 12
# Maximum number of locals for function / method body.
max-locals = 15
# Maximum number of parents for a class (see R0901).
max-parents = 7
# Maximum number of public methods for a class (see R0904).
max-public-methods = 20
# Maximum number of return / yield for function / method body.
max-returns = 6
# Maximum number of statements in function / method body.
max-statements = 50
# Minimum number of public methods for a class (see R0903).
min-public-methods = 2
[tool.pylint.exceptions]
# Exceptions that will emit a warning when caught.
overgeneral-exceptions = ["builtins.BaseException", "builtins.Exception"]
[tool.pylint.format]
# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
# expected-line-ending-format =
# Regexp for a line that is allowed to be longer than the limit.
ignore-long-lines = "^\\s*(# )?<?https?://\\S+>?$"
# Number of spaces of indent required inside a hanging or continued line.
indent-after-paren = 4
# String used as indentation unit. This is usually " " (4 spaces) or "\t" (1
# tab).
indent-string = " "
# Maximum number of characters on a single line.
max-line-length = 100
# Maximum number of lines in a module.
max-module-lines = 1000
# Allow the body of a class to be on the same line as the declaration if body
# contains single statement.
# single-line-class-stmt =
# Allow the body of an if to be on the same line as the test if there is no else.
# single-line-if-stmt =
[tool.pylint.imports]
# List of modules that can be imported at any level, not just the top level one.
# allow-any-import-level =
# Allow explicit reexports by alias from a package __init__.
# allow-reexport-from-package =
# Allow wildcard imports from modules that define __all__.
# allow-wildcard-with-all =
# Deprecated modules which should not be used, separated by a comma.
# deprecated-modules =
# Output a graph (.gv or any supported image format) of external dependencies to
# the given file (report RP0402 must not be disabled).
# ext-import-graph =
# Output a graph (.gv or any supported image format) of all (i.e. internal and
# external) dependencies to the given file (report RP0402 must not be disabled).
# import-graph =
# Output a graph (.gv or any supported image format) of internal dependencies to
# the given file (report RP0402 must not be disabled).
# int-import-graph =
# Force import order to recognize a module as part of the standard compatibility
# libraries.
# known-standard-library =
# Force import order to recognize a module as part of a third party library.
known-third-party = ["enchant"]
# Couples of modules and preferred modules, separated by a comma.
# preferred-modules =
[tool.pylint.logging]
# The type of string formatting that logging methods do. `old` means using %
# formatting, `new` is for `{}` formatting.
logging-format-style = "old"
# Logging modules to check that the string format arguments are in logging
# function parameter format.
logging-modules = ["logging"]
[tool.pylint."messages control"]
# Only show warnings with the listed confidence levels. Leave empty to show all.
# Valid levels: HIGH, CONTROL_FLOW, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
confidence = ["HIGH", "CONTROL_FLOW", "INFERENCE", "INFERENCE_FAILURE", "UNDEFINED"]
# Disable the message, report, category or checker with the given id(s). You can
# either give multiple identifiers separated by comma (,) or put this option
# multiple times (only on the command line, not in the configuration file where
# it should appear only once). You can also use "--disable=all" to disable
# everything first and then re-enable specific checks. For example, if you want
# to run only the similarities checker, you can use "--disable=all
# --enable=similarities". If you want to run only the classes checker, but have
# no Warning level messages displayed, use "--disable=all --enable=classes
# --disable=W".
disable = ["raw-checker-failed", "bad-inline-option", "locally-disabled", "file-ignored", "suppressed-message", "useless-suppression", "deprecated-pragma", "use-symbolic-message-instead", "too-few-public-methods", "not-callable"]
# Enable the message, report, category or checker with the given id(s). You can
# either give multiple identifier separated by comma (,) or put this option
# multiple time (only on the command line, not in the configuration file where it
# should appear only once). See also the "--disable" option for examples.
enable = ["c-extension-no-member"]
[tool.pylint.method_args]
# List of qualified names (i.e., library.method) which require a timeout
# parameter e.g. 'requests.api.get,requests.api.post'
timeout-methods = ["requests.api.delete", "requests.api.get", "requests.api.head", "requests.api.options", "requests.api.patch", "requests.api.post", "requests.api.put", "requests.api.request"]
[tool.pylint.miscellaneous]
# List of note tags to take in consideration, separated by a comma.
notes = ["FIXME", "XXX", "TODO"]
# Regular expression of note tags to take in consideration.
# notes-rgx =
[tool.pylint.refactoring]
# Maximum number of nested blocks for function / method body
max-nested-blocks = 5
# Complete name of functions that never returns. When checking for inconsistent-
# return-statements if a never returning function is called then it will be
# considered as an explicit return statement and no message will be printed.
never-returning-functions = ["sys.exit", "argparse.parse_error"]
[tool.pylint.reports]
# Python expression which should return a score less than or equal to 10. You
# have access to the variables 'fatal', 'error', 'warning', 'refactor',
# 'convention', and 'info' which contain the number of messages in each category,
# as well as 'statement' which is the total number of statements analyzed. This
# score is used by the global evaluation report (RP0004).
evaluation = "max(0, 0 if fatal else 10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10))"
# Template used to display messages. This is a python new-style format string
# used to format the message information. See doc for all details.
# msg-template =
# Set the output format. Available formats are text, parseable, colorized, json
# and msvs (visual studio). You can also give a reporter class, e.g.
# mypackage.mymodule.MyReporterClass.
# output-format =
# Tells whether to display a full report or only the messages.
# reports =
# Activate the evaluation score.
score = true
[tool.pylint.similarities]
# Comments are removed from the similarity computation
ignore-comments = true
# Docstrings are removed from the similarity computation
ignore-docstrings = true
# Imports are removed from the similarity computation
ignore-imports = true
# Signatures are removed from the similarity computation
ignore-signatures = true
# Minimum lines number of a similarity.
min-similarity-lines = 4
[tool.pylint.spelling]
# Limits count of emitted suggestions for spelling mistakes.
max-spelling-suggestions = 4
# Spelling dictionary name. No available dictionaries : You need to install both
# the python package and the system dependency for enchant to work..
# spelling-dict =
# List of comma separated words that should be considered directives if they
# appear at the beginning of a comment and should not be checked.
spelling-ignore-comment-directives = "fmt: on,fmt: off,noqa:,noqa,nosec,isort:skip,mypy:"
# List of comma separated words that should not be checked.
# spelling-ignore-words =
# A path to a file that contains the private dictionary; one word per line.
# spelling-private-dict-file =
# Tells whether to store unknown words to the private dictionary (see the
# --spelling-private-dict-file option) instead of raising a message.
# spelling-store-unknown-words =
[tool.pylint.typecheck]
# List of decorators that produce context managers, such as
# contextlib.contextmanager. Add to this list to register other decorators that
# produce valid context managers.
contextmanager-decorators = ["contextlib.contextmanager"]
# List of members which are set dynamically and missed by pylint inference
# system, and so shouldn't trigger E1101 when accessed. Python regular
# expressions are accepted.
# generated-members =
# Tells whether missing members accessed in mixin class should be ignored. A
# class is considered mixin if its name matches the mixin-class-rgx option.
# Tells whether to warn about missing members when the owner of the attribute is
# inferred to be None.
ignore-none = true
# This flag controls whether pylint should warn about no-member and similar
# checks whenever an opaque object is returned when inferring. The inference can
# return multiple potential results while evaluating a Python object, but some
# branches might not be evaluated, which results in partial inference. In that
# case, it might be useful to still emit no-member and other checks for the rest
# of the inferred objects.
ignore-on-opaque-inference = true
# List of symbolic message names to ignore for Mixin members.
ignored-checks-for-mixins = ["no-member", "not-async-context-manager", "not-context-manager", "attribute-defined-outside-init"]
# List of class names for which member attributes should not be checked (useful
# for classes with dynamically set attributes). This supports the use of
# qualified names.
ignored-classes = ["optparse.Values", "thread._local", "_thread._local", "argparse.Namespace"]
# Show a hint with possible names when a member name was not found. The aspect of
# finding the hint is based on edit distance.
missing-member-hint = true
# The minimum edit distance a name should have in order to be considered a
# similar match for a missing member name.
missing-member-hint-distance = 1
# The total number of similar names that should be taken in consideration when
# showing a hint for a missing member.
missing-member-max-choices = 1
# Regex pattern to define which classes are considered mixins.
mixin-class-rgx = ".*[Mm]ixin"
# List of decorators that change the signature of a decorated function.
# signature-mutators =
[tool.pylint.variables]
# List of additional names supposed to be defined in builtins. Remember that you
# should avoid defining new builtins when possible.
# additional-builtins =
# Tells whether unused global variables should be treated as a violation.
allow-global-unused-variables = true
# List of names allowed to shadow builtins
# allowed-redefined-builtins =
# List of strings which can identify a callback function by name. A callback name
# must start or end with one of those strings.
callbacks = ["cb_", "_cb"]
# A regular expression matching the name of dummy variables (i.e. expected to not
# be used).
dummy-variables-rgx = "_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_"
# Argument names that match this expression will be ignored.
ignored-argument-names = "_.*|^ignored_|^unused_"
# Tells whether we should check for unused import in __init__ files.
# init-import =
# List of qualified module names which can have objects that can redefine
# builtins.
redefining-builtins-modules = ["six.moves", "past.builtins", "future.builtins", "builtins", "io"]

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requirements-dev.txt Normal file
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pylint-flask
pylint-flask-sqlalchemy

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requirements.txt Normal file
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Flask==2.3.2
flask-restx==1.1.0
Flask-SQLAlchemy==3.0.5
psycopg2-binary==2.9.7
python-dotenv==1.0.0

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sample_data.flaskshell Normal file
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from app.datamodel import *
db.create_all()
db.session.add_all([BpData(device='sampledata', sys=120, dia=70, pulse=80),
BpData(device='sampledata', sys=121, dia=71, pulse=81),
BpData(device='sampledata', sys=123, dia=72, pulse=82),
BpData(device='sampledata', sys=124, dia=73, pulse=83),
BpData(device='sampledata', sys=125, dia=74, pulse=74)
])
db.session.add_all([WeightData(device='sampledata', weight=100),
WeightData(device='sampledata', weight=101),
WeightData(device='sampledata', weight=102),
WeightData(device='sampledata', weight=103),
WeightData(device='sampledata', weight=104.1),
WeightData(device='sampledata', weight=104.2),
WeightData(device='sampledata', weight=104.3),
WeightData(device='sampledata', weight=104.4)
])
db.session.commit()