HelloPhx API only notes

notes/remote-call.livemd

Ryn 草色青青

@cao7113

hello-phx-api-only

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HelloPhx API only notes

Mix.install([
  {:kino, "~> 0.16.0"},
  {:req, "~> 0.5.15"}
])

Node info

%{
  node: Node.self(),
  # same as above
  node2: node(),
  cookie: Node.get_cookie(),
  nodes: Node.list()
} |> Kino.Tree.new

Flyio land

API request

###

req =
  Req.new(
    method: :get,
    url: "http://hello-phx-api-only.internal:8080/info",
    headers: %{},
    params: %{}
  )
req = Req.merge(req, inet6: true)
{req, flyio_resp} = Req.request(req)
flyio_dist_info = flyio_resp.body["distribution"]

Remote execution

require Kino.RPC
node = String.to_atom(flyio_dist_info["node"])
cookie = String.to_atom(flyio_dist_info["cookie"])
Node.set_cookie(node, cookie)
Kino.RPC.eval_string(node, ~S"Hi.build_info()", file: __ENV__.file)

Orb containter

API Request

https://hi.orb.local/info

req =
  Req.new(
    method: :get,
    url: "https://hi.orb.local/info",
    # OrbStack use self-signed certificate!
    connect_options: [transport_opts: [verify: :verify_none]]
  )
{req, orb_resp} = Req.request(req)
orb_dist_info = orb_resp.body["distribution"]

Remote execution

require Kino.RPC
node = String.to_atom(orb_dist_info["node"])
cookie = String.to_atom(orb_dist_info["cookie"])
Node.set_cookie(node, cookie)
Kino.RPC.eval_string(node, ~S"Release.distribution()", file: __ENV__.file)

Test notes

2025.7.19 all passed using local desktop livebook with config

$ cat ~/.livebookdesktop.sh
# This file is used to configure Livebook before booting.
# If you change this file, you must restart Livebook for your changes to take place.
# See https://hexdocs.pm/livebook/readme.html#environment-variables for all available environment variables.

export LIVEBOOK_COOKIE="runman"
# https://fly.io/docs/elixir/advanced-guides/connect-livebook-to-your-app/
export LIVEBOOK_DISTRIBUTION=name

# Allow Livebook to connect to remote machines over IPv6
export ERL_AFLAGS="-proto_dist inet6_tcp"

# Add Homebrew to PATH
export PATH=/opt/homebrew/bin:$PATH