scripts/lua/api_gateway_init.lua

--
-- Licensed to the Apache Software Foundation (ASF) under one or more
-- contributor license agreements.  See the NOTICE file distributed with
-- this work for additional information regarding copyright ownership.
-- The ASF licenses this file to You under the Apache License, Version 2.0
-- (the "License"); you may not use this file except in compliance with
-- the License.  You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--

--- @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(mod)
    ngx.log(ngx.DEBUG, "Loading module [" .. tostring(mod) .. "]")
    local function requiref(module)
        require(module)
    end

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

_M.loadrequire = loadrequire

ngx.apiGateway = _M