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@thejollyrogers
thejollyrogers / gist:b114b5a98fa11a5a4ad0
Last active October 13, 2018 20:49
Simple steps to start a Stellar Gateway

You can become your own gateway in two simple steps! Here we'll show how easy it is to issue your own currency on the Stellar network.

Extending trust & issuing credit

1: A user extends trust to your gateway account for a "maximum" amount of your currency. Remember, they're trusting you'll honor whatever your currency represents when they give it back to you.

$ curl -X POST https://test.stellar.org:9002  -d '
{
    "method": "submit",
class Ticket < ActiveRecord::Base
belongs_to :grouper
belongs_to :user
validate :user_cant_be_blacklisted, on: :confirmation
validate :user_cant_double_book, on: :confirmation
validate :grouper_cant_be_full, on: :confirmation
validate :grouper_cant_have_occurred, on: :confirmation
@DanHerbert
DanHerbert / fix-homebrew-npm.md
Last active November 27, 2024 13:36
Instructions on how to fix npm if you've installed Node through Homebrew on Mac OS X or Linuxbrew

OBSOLETE

This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.

I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.

Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

@octocat
octocat / .gitignore
Created February 27, 2014 19:38
Some common .gitignore configurations
# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so
# Packages #
@justinas
justinas / 1_singlehost.go
Last active November 29, 2023 11:41
Go middleware samples for my blog post. http://justinas.org/writing-http-middleware-in-go/
package main
import (
"net/http"
)
type SingleHost struct {
handler http.Handler
allowedHost string
}
@TSMMark
TSMMark / s3.rb
Last active March 4, 2022 20:17
Process a remote CSV with SmarterCSV (also example with Paperclip and Amazon S3 AWS)
# this is the code I used to determine the csv_path to use when using Paperclip with Amazon S3 AWS
# necessary because my development environment doesn't upload to S3
# get an object that has_attachment with Paperclip
object = ModelWithPaperclip.last
# use url if no file exists at path
csv_path = File.exists?(object.csv.path) ? object.csv.path : object.csv.url
# this should probably be implemented as a model method
@jordelver
jordelver / gist:5998870
Last active January 13, 2017 07:23
Find where stuff broke using git bisect with cucumber

Find where stuff broke using git bisect with Cucumber

Start git bisect

git bisect start

Specify a good and bad commit

git bisect good <commit-where-stuff-is-working>
@ashrithr
ashrithr / kafka.md
Last active March 14, 2024 21:16
kafka introduction

Introduction to Kafka

Kafka acts as a kind of write-ahead log (WAL) that records messages to a persistent store (disk) and allows subscribers to read and apply these changes to their own stores in a system appropriate time-frame.

Terminology:

  • Producers send messages to brokers
  • Consumers read messages from brokers
  • Messages are sent to a topic
#!/usr/bin/env python3
import csv
import datetime
import collections
Treatment = collections.namedtuple('Treatment', 'date_funded, funds_sent, status')
with open('patients.csv') as csvfile:
spamreader = csv.reader(csvfile, delimiter='\t')
@karlseguin
karlseguin / spec.go
Last active February 20, 2018 19:42
A simple test helper for Go. See http://openmymind.net/Testing-In-Go/
package tests
import (
"testing"
)
type S struct {
t *testing.T
}