Flask

Flask example

Usage

1. install virtualenv

$ pip install virtualenv
$ virtualenv venv
$ . venv/bin/activate
$ pip install -r requirements.txt

2. set environment or create config.json

Name	Description
APP_MODE	choose from production, development, testing
APP_HOST	ip address
APP_PORT	port number
DB_USER_NAME	db user name
DB_USER_PASSWD	db user password
DB_HOST	db host
DB_NAME	db name
REDIS_HOST	redis ip address
REDIS_PASSWD	redis password
TESTING	if using test table true else false

3. db migrate

$ export FLASK_APP=apps.common.commands.manager
$ flask db stamp head
$ flask db migrate
$ flask db upgrade

migrate db tables

4. run test code

$ export FLASK_APP=apps.common.commands.manager
$ flask test

5. run flask server

$ python3 manage.py

if you do not install database, you can get the database connection error.

Command

test

$ export FLASK_APP=apps.common.commands.manager
$ flask test

run test code with unittest2

db

$ export FLASK_APP=apps.common.commands.manager
$ flask db
usage: Perform database migrations

Perform database migrations

positional arguments:
  {init,revision,migrate,edit,merge,upgrade,downgrade,show,history,heads,branches,current,stamp}
    init                Creates a new migration repository
    revision            Create a new revision file.
    migrate             Alias for 'revision --autogenerate'
    edit                Edit current revision.
    merge               Merge two revisions together. Creates a new migration
                        file
    upgrade             Upgrade to a later version
    downgrade           Revert to a previous version
    show                Show the revision denoted by the given symbol.
    history             List changeset scripts in chronological order.
    heads               Show current available heads in the script directory
    branches            Show current branch points
    current             Display the current revision for each database.
    stamp               'stamp' the revision table with the given revision;
                        don't run any migrations

optional arguments:
  -?, --help            show this help message and exit

perform database migrations

https://flask-migrate.readthedocs.io/en/latest/