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melekes /
Last active Jun 1, 2019
Requirements for a Tendermint client

Requirements for a Tendermint client

Broadcasting transactions

  1. An evil proposer can drop valid transactions ( To ensure tx A will be committed, the client needs to a) send it to multiple nodes b) subscribe for its result or query the result later using /tx API endpoint (requires the tx indexer enabled)

  2. Multiple nodes above requirement comes from a simple fact that an evil node can drop your tx.


melekes / client.go
Created Mar 5, 2019
Example of using Tendermint HTTP client to subscribe for new block headers
View client.go
package main
import (
melekes / badger_db.go
Last active Jan 30, 2019
Alternative databases, which were used to benchmark Tendermint indexing
View badger_db.go
package db
import (
melekes /
Last active Jul 21, 2017 — forked from iamsteadman/
Add your Twitter friends' RSS feeds to a single OPML file
# -*- coding: utf-8 -*-
This script requires the following Packages
1: Twitter:
2: PyQuery:
3: Jinja2:
It's fairly primitive but works. It uses a Jinja2 template to create an OPML
file from the RSS feeds of the websites run by the people you follow on
melekes / upgrade_tendermint.yml
Last active Apr 24, 2017
Ansible playbook for upgrading Tendermint
View upgrade_tendermint.yml
- hosts: all
- name: get version
shell: tendermint version
register: version
- name: copy and unpack binary if newer version is being installed
View counter.systemd.j2
User={{ user }}
Group={{ group }}
View overflow_uint64.go
// addOrMax performs safe addition: if result overflows, it returns MaxUint64
func addOrMax(accum, value uint64) uint64 {
if (accum + value) < accum {
return math.MaxUint64
} else {
return accum + value
// subOrZero performs safe subtraction: if result underflows, it returns 0

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To claim this, I am signing this object:


Any other languages or suggestions? Comment below.

.NET (C#, F#, VB)


  • Factcheck -- requires a test framework (I like pytest), I wrote it (benefits - you can ask me about it, drawbacks - it's not very mature). Can be installed from PyPI with Pip or easy_install.
  • Hypothesis -- requires a test framework, provides decorators for easy integration
melekes /
Last active Aug 11, 2016
How to learn any language in six months | Chris Lonsdale | TEDxLingnanUniversity

Краткое содержание


  1. Фокусируйте внимание на контенте, имеющем для вас какое-то значение
  2. Используйте язык как средство для коммуникации начиная с первого дня
  3. Если вы сначала поймёте то, что вам хотели сказать, то вы начинаете овладевать языком бессознательно (comprehensive input)
  4. Изучение нового языка - это также тренировка тела (правильное произношение зависит от мышц)
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