Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
var AWS = require('aws-sdk'); | |
var http = require('http'); | |
var httpProxy = require('http-proxy'); | |
var express = require('express'); | |
var bodyParser = require('body-parser'); | |
var stream = require('stream'); | |
if (process.argv.length != 3) { | |
console.error('usage: aws-es-proxy <my-cluster-endpoint>'); | |
process.exit(1); |
def compute_thing(thing) | |
if thing[:foo] | |
update_with_bar(thing) | |
if thing[:foo][:bar] | |
partial_compute(thing) | |
else | |
re_compute(thing) | |
end | |
end | |
end |
# This demonstrates that, when using async/await, a crash in the task will crash the caller | |
defmodule Tasker do | |
def good(message) do | |
IO.puts message | |
end | |
def bad(message) do | |
IO.puts message | |
raise "I'm BAD!" | |
end |
# Instruments HTTPoison calls. | |
# | |
# Example usage: | |
# | |
# defmodule Demo.Web.PageController do | |
# use Demo.Web, :controller | |
# alias ScoutApm.HTTPoison | |
# def index(conn, _params) do | |
# HTTPoison.get("https://cnn.com") |
-- | |
-- Read only | |
-- | |
-- Create a group | |
CREATE ROLE postgres_ro_group; | |
-- Grant access to existing tables | |
GRANT USAGE ON SCHEMA public TO postgres_ro_group; | |
GRANT SELECT ON ALL TABLES IN SCHEMA public TO postgres_ro_group; |
After automatically updating Postgres to 10.0 via Homebrew, the pg_ctl start command didn't work. | |
The error was "The data directory was initialized by PostgreSQL version 9.6, which is not compatible with this version 10.0." | |
Database files have to be updated before starting the server, here are the steps that had to be followed: | |
# need to have both 9.6.x and latest 10.0 installed, and keep 10.0 as default | |
brew unlink postgresql | |
brew install postgresql@9.6 | |
brew unlink postgresql@9.6 | |
brew link postgresql |
Phoenix 1.4 ships with exciting new features, most notably with HTTP2 support, improved development experience with faster compile times, new error pages, and local SSL certificate generation. Additionally, our channel layer internals receiveced an overhaul, provided better structure and extensibility. We also shipped a new and improved Presence javascript API, as well as Elixir formatter integration for our routing and test DSLs.
This release requires few user-facing changes and should be a fast upgrade for those on Phoenix 1.3.x.
The mix phx.new archive can now be installed via hex, for a simpler, versioned installation experience.
To grab the new archive, simply run:
I recently wanted to rename a model and its postgres table in a Phoenix app. Renaming the table was simple and documented, but the table also had constraints, sequences, and indexes that needed to be updated in order for the Ecto model to be able to rely on default naming conventions. I couldn't find any examples of what this would look like but was eventually able to figure it out. For anyone else in the same situation, hopefully this example helps.
In the example below, I'm renaming the Permission
model to Membership
. This model belongs to a User
and an Account
, so it has foreign key constraints that need to be renamed.
defmodule MyApp.Repo.Migrations.RenamePermissionsToMemberships do
use Ecto.Migration