Phoenix liveview multitenancy

Phoenix Forum Questions / Help
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1

I tried latest Phoenix with liveview. It’s great but I hit a wall. I’m not able to get to domain used by a request. Before it was possible to use conn.host to get current host. I used this value to determine users domain. But socket does not contain this information. Since I need to deal with anonymous users sessions are not very helpful.

Basically I get the domain get domain object from DB. I get the domain primary key and use it to filter data based on domain. In case of new objects I put domain PK in FK so I will show only domain data based on visited domain. This works great unless liveview is involved.

I tired to look it up in docs but there was nothing useful. I tried to look even in the source code of liveview. Still nothing. But I’ve started with Phoenix 3 weeks ago so please don’t hammer me with RTFM.

2 Likes
2

Welcome!

I have a very similar scenario, here’s what I do. At the live view connect:

const liveSocket = new LiveSocket("/live", Socket, {
  hooks: Hooks,
  params: {
    _csrf_token: csrf_token,
    host: window.location.hostname
  }
});

Then, you can call get_connect_params(socket) to get the "host" param.

9 Likes
3

connect params is a great option to pass up client state, but you can also get the full url in handle_params. It will be the second argument :slight_smile:


def handle_params(_params, url, socket) do
  host = URI.parse(url).host
  # ... profit
end
8 Likes
4

Thanks, the URL is the best thing to parse I later realized I needed to know if a user is connected over HTTPS or HTTP(localhost).

5

I have a doubt. Someone please help me fix this.
Context: I am trying to implement a Saas, custom domain, multi tenant.

ref https://github.com/elixir-ecto/ecto/blob/master/guides/howtos/Multi%20tenancy%20with%20foreign%20keys.md#setting-org_id-by-default

My Code

 defmodule Atmanirbhar.Repo do
  ..........
    @tenant_key {__MODULE__, :org_id}

  def put_org_id(org_id) do
    Process.put(@tenant_key, org_id)
  end

  def get_org_id() do
    Process.get(@tenant_key)
  end

  def default_options(_operation) do
    [org_id: get_org_id()]
  end

  def prepare_query(operation, query, opts) do
    IO.puts "opts has org id?"
    IO.puts inspect(opts)
    cond do
      opts[:skip_org_id] -> {query, opts}

      org_id = opts[:org_id] ->
        {Ecto.Query.where(query, org_id: ^org_id), opts}

      true ->
        raise "expected org_id or skip_org_id to be set"
    end
  end


end

   In pageLive.ex,
  
 def handle_params(params, url, socket) do
    host_name =  URI.parse(url).host
    Atmanirbhar.Repo.put_org_id(host_name)
# The value gets set somewhere else….,
# Repo.get_org_id returns nil
     {:noreply, apply_action(socket, socket.assigns.live_action, params)}
  end  
# vs
    def mount(params, session, socket) do

   Atmanirbhar.Repo.put_org_id(123)
# The value get set here,
# Repo.get_org_id returns value set here … I.e 123 

    deals = Atmanirbhar.Marketplace.list_deals_for_pincode(pincode)
  
    {:ok, assign(socket, ... )}
  end
 
What I need .... find correct hostname and so the tenant_id/org_id and tenant results..
Should I set it in mount or handle_params, if in mount, any straightforward way to get host?
or help me figure out what should be modified...
6

Hi sandeshoni, have you found answer for your question?

My initial thought is to get org_id from mount, when the live view page is mounted and data can be loaded from db. Is that what you need?