https://github.com/brunojppb/elixir-gen-server
The simplest GenServer you can imagine. Just to learn OTP.
https://github.com/brunojppb/elixir-gen-server
elixir erlang otp
Last synced: about 1 month ago
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The simplest GenServer you can imagine. Just to learn OTP.
- Host: GitHub
- URL: https://github.com/brunojppb/elixir-gen-server
- Owner: brunojppb
- Created: 2020-04-20T20:03:36.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2020-05-01T09:09:55.000Z (about 6 years ago)
- Last Synced: 2025-03-04T11:44:27.694Z (over 1 year ago)
- Topics: elixir, erlang, otp
- Language: Elixir
- Size: 7.81 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# OTP GenServer
Learning OTP by doing.
## Installation
If [available in Hex](https://hex.pm/docs/publish), the package can be installed
by adding `sequence` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:sequence, "~> 0.1.0"}
]
end
```
Run `iex -S mix` to try it out:
```elixir
{:ok, pid} = GenServer.start_link(Sequence.Server, 100)
# {:ok, #PID<0.151.0>}
iex(2)> GenServer.call(pid, :next_number)
100
iex(3)> GenServer.call(pid, :next_number)
101
iex(6)> GenServer.call(pid, {:set_number, 455})
455
iex(7)> GenServer.call(pid, :next_number)
455
iex(8)> GenServer.call(pid, :next_number)
456
# Try the GenServer with debug options
{:ok,pid} = GenServer.start_link(Sequence.Server, 100, [debug: [:trace, :statistics]])
GenServer.call(pid, :next_number)
# *DBG* <0.68.0> got call next_number from <0.25.0>
# *DBG* <0.68.0> sent 101 to <0.25.0>, new state 102
101
GenServer.cast(pid, {:increment_number, 500})
# Check some cool statistics about the server
:sys.statistics pid, :get
# You should see an output similar to this:
{:ok,
[
start_time: {{2020, 4, 21}, {0, 11, 23}},
current_time: {{2020, 4, 21}, {0, 12, 30}},
reductions: 729,
messages_in: 8,
messages_out: 5
]}
```
Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
be found at [https://hexdocs.pm/sequence](https://hexdocs.pm/sequence).