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defmodule Recaptcha.Http do
@moduledoc """
Responsible for managing HTTP requests to the reCAPTCHA API
"""
@headers [{"Content-type", "application/x-www-form-urlencoded"}, {"Accept", "application/json"}]
@url Application.get_env(:recaptcha, :verify_url)
@timeout Application.get_env(:recaptcha, :timeout, 5000)
@doc """
Sends an HTTP request to the reCAPTCHA version 2.0 API.
See the [documentation](https://developers.google.com/recaptcha/docs/verify#api-response) for more details on the API response.
## Options
* `:timeout` - the timeout for the request (defaults to 5000ms)
## Example
{:ok, %{ "success" => success, "challenge_ts" => ts, "hostname" => host, "error-codes" => errors}} = Recaptcha.Http.request_verification(%{ secret: "secret", response: "response", remote_ip: "remote_ip"})
"""
@spec request_verification(map, [timeout: integer]) :: {:ok, map} | {:error, [atom]}
def request_verification(body, options \\ []) do
result =
with {:ok, response} <- HTTPoison.post(@url, body, @headers, timeout: options[:timeout] || @timeout),
{:ok, data} <- Poison.decode(response.body) do
{:ok, data}
end
case result do
{:ok, data} -> {:ok, data}
{:error, :invalid} -> {:error, [:invalid_api_response]}
{:error, {:invalid, _reason}} -> {:error, [:invalid_api_response]}
{:error, %{reason: reason}} -> {:error, [reason]}
end
end
end
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