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upstream production_upstream {
  server production-environment-url-with-port max_fails=5 fail_timeout=30;
}
upstream sandbox_upstream {
  server sandbox-environment-url-with-port max_fails=5 fail_timeout=30;
}

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listen 80;
    ## CHANGE YOUR SERVER_NAME TO YOUR CUSTOM DOMAIN OR LEAVE IT BLANK IF ONLY HAVE ONE
    server_name YOUR-SERVICE-DOMAIN-FOR-NGINX;

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## CHANGE THE PATH TO POINT TO THE RIGHT FILE ON YOUR FILESYSTEM
      access_by_lua_file LUA-SYSTEM-PATH;

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 -- if is_known ~= 200 then
  local res = ngx.location.capture("/threescale_authrep", { share_all_vars = true })

  --    -- IN HERE YOU DEFINE THE ERROR IF CREDENTIALS ARE PASSED, BUT THEY ARE NOT VALID
  --    if res.status ~= 200 then
  --       -- remove the key, if it's not 200 let's go the slow route, to 3scale's backend
  --       api_keys:delete(ngx.var.cached_key)
  --       ngx.status = res.status
  --       ngx.header.content_type = "application/json"
  --       error_authorization_failed(service)

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local s = ngx.re.match(res.body,[=[<plan>Sandbox]=])
local p = ngx.re.match(res.body,[=[<plan>Production]=])

if p then
  ngx.var.proxy_pass = "http://production_upstream"
elseif s then
  ngx.var.proxy_pass = "http://sandbox_upstream"
end

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import threescale;

set req.http.X-tmp = threescale.send_get_request_threaded(“su1.3scale.net”,“80”,req.url,"");
set req.http.X-tmp = threescale.send_get_request(“su1.3scale.net”,“80”,req.url,“X-ur-header: true;”);

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ab -c 1 -n 1 http://127.0.0.1:8080/transactions/authrep.xml?provider_key=PROVIDER_KEY&app_id=APP_ID&app_key=APP_KEY&%5Busage%5D%5Bhits%5D=1

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{% for feature in current_user.account.bought_account_plan.system_name %}
  ...
{% endfor %}

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$response = $client->authorize("the app id", "the app key");

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{% if current_account %}
  {% if current_account.credit_card_required? and current_account.credit_card_missing? %}
    <div class="missing_card">
      <p>You have selected a paid API plan. 
      Please <a href="{{ urls.payment_details }}">enter your credit card</a> 
      to get access to your API key.</p>
    </div>
  {% endif %}
{% endif %}