manuelolmos/products_tracker

Backend

products_tracker_backend

Backend for products_tracker_app

Dependencies

• Erlang 21
• Cassandra 2.2.13

Build

$ make deps

Run

$ make

Documentation

Product Resource doc

products_tracker's Issues

Lager issue at start

1> ===> The rebar3 shell is a development tool; to deploy applications in production, consider using releases (http://www.rebar3.org/v3.0/docs/releases) =CRASH REPORT==== 30-Nov-2018::00:43:33.316311 === crasher: initial call: lager_handler_watcher:init/1 pid: <0.351.0> registered_name: [] exception exit: noproc in function gen:do_for_proc/2 (gen.erl, line 228) in call from gen_event:rpc/2 (gen_event.erl, line 239) in call from lager_handler_watcher:install_handler2/3 (/Users/manuelolmosgil/projects/products_tracker_backend/_build/default/lib/lager/src/lager_handler_watcher.erl, line 117) in call from lager_handler_watcher:init/1 (/Users/manuelolmosgil/projects/products_tracker_backend/_build/default/lib/lager/src/lager_handler_watcher.erl, line 51) in call from gen_server:init_it/2 (gen_server.erl, line 374) in call from gen_server:init_it/6 (gen_server.erl, line 342) ancestors: [lager_handler_watcher_sup,lager_sup,<0.336.0>] message_queue_len: 0 messages: [] links: [<0.339.0>] dictionary: [] trap_exit: false status: running heap_size: 987 stack_size: 27 reductions: 267 neighbours:

Product model support pagination

Create cqerl wrapper

https://github.com/matehat/cqerl/tree/v1.0.5

Create product: model & db modules

PUT vs POST

Correct http codes

• What should i return when i try to return a resource that already exists
  

  products_tracker/src/handlers/products_handler.erl

  Line 25 in 061ccd4

  {ok, cowboy_req:reply(400, Req0), State};

Create and connect product handler

• GET all products
• GET a certain product
• DELETE a certain product
• POST create a product
• PUT update a certain product

Product history

Create handler, storage and everything necessary to support the history prices for all the products.

Add tests

Design and Document APIs

Product model error handling