| __author__ = 'dkarchmer' | |
| ''' | |
| This script emulates a stand-alone Python based client. It relies on Boto3 to access AWS, but | |
| requires your Django server to have an API for your user to access Cognito based credentials | |
| Because of Cognito, the client (this script) will only get temporary AWS credentials associated | |
| to your user and only your user, and based on whatever you configure your AIM Policy to be. | |
| Most Cognito examples demonstrate how to use Cognito for Mobile Apps, so this scripts demonstrate | |
| how to create a stand-alone Python script but operating similarly to these apps. |
| # -*- coding: utf-8 -*- | |
| from __future__ import unicode_literals | |
| import uuid | |
| from django.db import migrations, models | |
| def fill_mymodel_uuid(apps, schema_editor): | |
| db_alias = schema_editor.connection.alias | |
| MyModel = apps.get_model('myapp', 'MyModel') |
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
| // Unzip the data-csv.zip file and rename the folder to import. | |
| // Move the import folder into your Neo4j directory. | |
| // $ bin/neo4j start | |
| // $ bin/neo4j-shell < panama_import.cypher | |
| // Delete character at line 31362, position 82 in Addresses.csv before continuing. | |
| // There is an escaped quote; the backslash needs to be removed. | |
| CREATE CONSTRAINT ON (n:Address) ASSERT n.node_id IS UNIQUE; | |
| CREATE CONSTRAINT ON (n:Officer) ASSERT n.node_id IS UNIQUE; |
| FROM alpine | |
| RUN apk add --update --no-cache nodejs | |
| RUN npm i -g yarn | |
| ADD package.json yarn.lock /tmp/ | |
| ADD .yarn-cache.tgz / | |
| RUN cd /tmp && yarn | |
| RUN mkdir -p /service && cd /service && ln -s /tmp/node_modules |
FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.
| " (N)Vim Configuration File | |
| " vim : place in $HOME/.vimrc | |
| " nvim : place in $HOME/.config/nvim/init.vim | |
| " $ ln -s $HOME/.config/nvim/init.vim $HOME/.vimrc | |
| " General settings | |
| " https://learnvimscriptthehardway.stevelosh.com/ | |
| " --------------------------------------------------------------------------- | |
| " drop vi support - kept for vim compatibility but not needed for nvim | |
| " Probably not needed with Vim 8+ | |
| "set nocompatible |
There are two forms of QUIC common header: long and short. Long form packets are used for the initial exchange - until both 1-RTT packet protection can be started AND version negotiation is complete. Short form packets carry the bulk of the data.
This removes a lot of the flexibility that was the source of most of the objections to the current format. Fields are aligned on four octet boundaries. All long-form header variations have the exact same form. The connection ID is in the same place in both short and long form. The long form clearly identifies the role of the sender in the first octet and it identifies the
| /** | |
| * Read the text contents of a File or Blob using the FileReader interface. | |
| * This is an async interface so it makes sense to handle it with Rx. | |
| * @param {blob} File | Blob | |
| * @return Observable<string> | |
| */ | |
| const readFile = (blob) => Observable.create(obs => { | |
| if (!(blob instanceof Blob)) { | |
| obs.error(new Error('`blob` must be an instance of File or Blob.')); | |
| return; |
