felixcheruiyot

E-Commerce c-lightning node on Digital Ocean

Prerequisites

• based on small Digital Ocean VPS (1CPU / 1GB RAM) with Ubuntu 16.04
• SSH keys are recommended, but not described here
• (sub) domain name necessary for SSL certificate

UFW & basic stuff

Login as "root"

felixcheruiyot

{
    "institution": 1,
    "template_id": 1,
    "document_type": "PR",
    "date_issued": "2021-08-03",
    "number": "2019751824053621",
    "pin_code": "2019751824053621",
    "pin_category": "SCHOOL FEES",
    "payment_amount": 1000,
    "payment_currency": "NGN",

felixcheruiyot

# -*- encoding: utf-8 -*-
# requires a recent enough python with idna support in socket
# pyopenssl, cryptography and idna

from OpenSSL import SSL
from cryptography import x509
from cryptography.x509.oid import NameOID
import idna

from socket import socket

felixcheruiyot

"""
    #Disclaimer
        - Use with caution
        - Don't be evil
        - Respect your users
"""

class FingerPrintMiddleware(object):
    def process_request(self, request):
        import hashlib

felixcheruiyot

from django.utils.text import gettext_lazy as _
from rest_framework import serializers
from rest_framework_simplejwt.tokens import RefreshToken, TokenError

class RefreshTokenSerializer(serializers.Serializer):
    refresh = serializers.CharField()

    default_error_messages = {
        'bad_token': _('Token is invalid or expired')
    }

felixcheruiyot

Here's an example application that uses the pattern detailed below: https://github.com/tantastik/talent-curator

---

This document is an attempt to describe the first step of a large project structure with flask and some basic modules:

• SQLAlchemy
• WTForms

Please feel free to fix and add your own tips.

felixcheruiyot

{
  "name": "vbvcomplete",
  "data": {
    "data": {
      "status": "successful",
      "txRef": "shop",
      "amount": "5000"
    }
  },
  "respcode": "00",

felixcheruiyot

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// 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

felixcheruiyot

pragma solidity ^0.4.16;

contract AcademicRegistry {
    address admin;
    enum Permissions {
        CanEnrollCandidate,
        CanUpdateProgram,
        CanUpdateUnits,
        CanUpdateStaff,
        CanClearCandidate,

felixcheruiyot

1. Clone your fork:

git clone git@github.com:YOUR-USERNAME/YOUR-FORKED-REPO.git

2. Add remote from original repository in your forked repository:

cd into/cloned/fork-repo
git remote add upstream git://github.com/ORIGINAL-DEV-USERNAME/REPO-YOU-FORKED-FROM.git
git fetch upstream