function _M.addAPI()

in scripts/lua/lib/redis.lua [280:312]

• 30 lines of code
• 7 McCabe index (conditional complexity)

function _M.addAPI(red, id, apiObj, existingAPI)
  if existingAPI == nil then
    local apis = _M.getAllAPIs(red)
    
    for apiId, obj in pairs(apis) do
      if apiId%2 == 0 then
        obj = cjson.decode(obj)
        if obj.tenantId == apiObj.tenantId and obj.basePath == apiObj.basePath then
          request.err(500, "basePath not unique for given tenant.")
        end
      end
    end
  else
    local snapshotId = _M.getSnapshotId(red, apiObj.tenantId)
    
    local basePath = existingAPI.basePath:sub(2)
    for path in pairs(existingAPI.resources) do
      local gatewayPath = ngx.unescape_uri(utils.concatStrings({basePath, ngx.escape_uri(path)}))
      gatewayPath = gatewayPath:sub(1,1) == "/" and gatewayPath:sub(2) or gatewayPath
      local redisKey = utils.concatStrings({"resources:", existingAPI.tenantId, ":", gatewayPath})
      _M.deleteResource(red, redisKey, REDIS_FIELD, snapshotId)
      local indexKey = utils.concatStrings({"resources:", existingAPI.tenantId, ":__index__"})
      _M.deleteResourceFromIndex(red, indexKey, redisKey, snapshotId)
    end
  end
  
  apiObj = cjson.encode(apiObj):gsub("\\", "")
  local ok, err = hset(red, "apis", id, apiObj)
  if not ok then
    request.err(500, utils.concatStrings({"Failed to save the API: ", err}))
  end
  return cjson.decode(apiObj)
end