Hassan Raza hassanRsiddiqi

🏠

Working from home

PETAL Stack

hassanRsiddiqi / stream_csv.ex

Created November 1, 2020 09:18 — forked from avdgaag/stream_csv.ex

Streaming CSV straight out of the database to the client using Elixir, Phoenix, Ecto and PostgreSQL.

	def index(conn, _params) do
	conn = conn
	\|> put_resp_content_type("text/csv")
	\|> put_resp_header("content-disposition", "attachment; filename=export.csv")
	\|> send_cunked(200)

	Repo.transaction fn ->
	Ecto.Adapters.SQL.stream(Repo, "COPY expensive_report TO STDOUT CSV HEADER")
	\|> Stream.map(&(chunk(conn, &1.rows)))
	\|> Stream.run

hassanRsiddiqi / Calculator By Elixir Process.ex

Last active December 1, 2021 13:31

This snippet is for learning Process in Elixir, with this snippet you can calculator basic arithmetic operation.

hassanRsiddiqi / todoList.ex

Created December 23, 2020 07:01

TodoList in Elixir using GenServer.

	defmodule TodoList do
	use GenServer

	@moduledoc """
	A TodoList add, list, find, update & remove.
	"""
	def start do
	{:ok, state} = GenServer.start_link(__MODULE__, [])
	state
	end

hassanRsiddiqi / elixir-list.ex

Created December 31, 2020 15:55

Convert string into List.

	you can use ~W or ~w to convert strings into list.
	~w"""
	...> the
	...> cat
	...> sat
	...> """
	# ["the", "cat", "sat"]

	str = "This is Test String" # "This is Test String"
	~w<#{str}> # ["This", "is", "Test", "String"]