scripts/lua/api_gateway_init.lua

-- Copyright (c) 2016 IBM. All rights reserved.
--
--   Permission is hereby granted, free of charge, to any person obtaining a
--   copy of this software and associated documentation files (the "Software"),
--   to deal in the Software without restriction, including without limitation
--   the rights to use, copy, modify, merge, publish, distribute, sublicense,
--   and/or sell copies of the Software, and to permit persons to whom the
--   Software is furnished to do so, subject to the following conditions:
--
--   The above copyright notice and this permission notice shall be included in
--   all copies or substantial portions of the Software.
--
--   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
--   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
--   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
--   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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--   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
--   DEALINGS IN THE SOFTWARE.

--- @module init
-- An initialization script on a per worker basis.

local _M = {}


--- Loads a lua gracefully. If the module doesn't exist the exception is caught, logged and the execution continues
-- @param module path to the module to be loaded
--
local function loadrequire(module)
    ngx.log(ngx.DEBUG, "Loading module [" .. tostring(module) .. "]")
    local function requiref(module)
        require(module)
    end

    local res = pcall(requiref, module)
    if not (res) then
        ngx.log(ngx.WARN, "Could not load module [", module, "].")
        return nil
    end
    return require(module)
end



ngx.apiGateway = _M