Giuliano Silvestro
e1f0aedcf7
POST /api/v1/integrations/llm-usage stores priced LLM usage events (idempotent on gateway_request_id) in llm_usage_events. The gateway is the LLM-pricing authority — arcadia-cloud trusts the charge it sends rather than re-pricing. The monthly invoice rollup now appends an llm_usage line per deployment alongside the infra quote lines; the exact decimal charges are summed and rounded to cents once. Closes the gateway→cloud billing loop. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
70 lines
2.2 KiB
Elixir
70 lines
2.2 KiB
Elixir
defmodule ArcadiaCloudWeb.IntegrationsController do
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@moduledoc """
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Inbound integration hooks from sibling Sky AI services.
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`llm_usage` receives `llm_usage_recorded` events from
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arcadia-llm-gateway — one per billable LLM request — and stores them
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for the monthly invoice rollup. platform-admin only (the gateway
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authenticates with a service JWT carrying that role).
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"""
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use ArcadiaCloudWeb, :controller
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alias ArcadiaCloud.LlmUsage
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def llm_usage(conn, params) do
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with :ok <- require_platform_admin(conn) do
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case LlmUsage.record_event(translate(params)) do
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{:ok, :recorded} ->
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conn |> put_status(:created) |> json(%{status: "recorded"})
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{:ok, :duplicate} ->
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json(conn, %{status: "duplicate"})
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{:error, changeset} ->
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conn |> put_status(:unprocessable_entity) |> json(%{error: errors(changeset)})
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end
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end
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end
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# Maps the gateway's wire payload onto the LlmUsageEvent schema.
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defp translate(params) do
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%{
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gateway_request_id: params["gateway_request_id"],
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tenant_id: params["tenant_id"],
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deployment_id: params["deployment_id"],
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provider: params["provider"],
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model: params["model"],
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request_kind: params["request_kind"],
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input_tokens: params["input_tokens"],
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output_tokens: params["output_tokens"],
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cached_input_tokens: params["cached_input_tokens"],
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total_tokens: params["total_tokens"],
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upstream_cost: params["upstream_cost_usd"],
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customer_charge: params["customer_charge_usd"],
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customer_charge_cents: params["customer_charge_cents"],
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markup_mode: params["markup_mode"],
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occurred_at: params["occurred_at"]
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}
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end
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defp require_platform_admin(conn) do
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identity = conn.assigns.current_identity
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if is_list(identity.roles) and "platform-admin" in identity.roles do
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:ok
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else
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conn
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|> put_status(:forbidden)
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|> json(%{error: "platform_admin_required"})
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|> halt()
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end
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end
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defp errors(changeset) do
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Ecto.Changeset.traverse_errors(changeset, fn {msg, opts} ->
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Enum.reduce(opts, msg, fn {k, v}, acc -> String.replace(acc, "%{#{k}}", to_string(v)) end)
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end)
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end
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end
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