Created: 2012-03-20 07:35
Updated: 2014-04-13 17:28


securities is a program to show some statistic from securities market

Directories and files


  • deps: contain all dependencies, now it only yaws
  • ebin: compiled erlang files
  • include: contain header files
  • priv: contain configs and misc files
  • priv/www: contain static web files
  • src: source files
  • tests: tests for application


  • priv/securities.config: settings for yaws server

Install and Use


tested on Ubuntu Server 10.04

This command install all you need for running application

sudo aptitude install git-core erlang build-essential autoconf libpam0g-dev


  • git clone git://
  • cd securities
  • make build-deps — it downloaded and cocmpiled yaws server
  • make test for sure all works

Voila. Application installed.


I put some helpful scripts in Makefile

  • make build-deps: call make get-deps that do git clone yaws repository;
    check if there no configure file, it run autoconf, and do ./configure && make
  • make test: running tests
  • make run-dev: running application in development environment
  • make run: running application and detaching process;
    to stop process you can use ps aux | grep beam to find pid and kill -INT <pid>



  • Datatime - should be string with format YYYY-MM-DD HH:II or YYYY-MM-DD HH:II:SS
    MM ­— month, two digit
    II — minutes, two digit


All request return JSON response on success.

HTTP Server handling 4 requests:

  1. GET /api/scales — return list of scale names, downcase, strings
  2. GET /api/papers — return list of exist papers in application, strings
  3. GET /api/entries?name=echo&from=2012-04-11%2000%3A00&to=2012-04-12%2000%3A00&scale=hour
    name and scale should be existing values, from and to should be Datatime
    return list of entry, entry example:
    {"startTime": "2012-04-11 00:00:00", "startPrice": 1.21, "endPrice": 1.26, "minPrice": 1.21, "maxPrice": 1.26, "amount": 1200.0}

    startPrice, endPrice, minPrice, maxPrice, amount — float values,
    startTime — string value
  4. POST /api/operation — it require valid post data:
    • name
    • time — Datetime
    • price — float or integer
    • amount — float or integer
      AHTUNG! name is case sensitive: echo, Echo, ECHO it three different names
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