function _M.getUriPath()

in scripts/lua/policies/backendRouting.lua [102:118]

• 16 lines of code
• 2 McCabe index (conditional complexity)

function _M.getUriPath(backendPath)
  local gatewayPath = ngx.unescape_uri(ngx.var.gatewayPath)
  gatewayPath = gatewayPath:gsub('-', '%%-')
  local tenant = ngx.var.tenant:gsub('-', '%%-')
  local uri = string.gsub(ngx.var.request_uri, '?.*', '')
  uri = uri:gsub('/api/' .. tenant, '')
  local _, j = uri:find(gatewayPath)
  local incomingPath = ((j and uri:sub(j + 1)) or nil)
  
  if backendPath == nil or backendPath == '' or backendPath == '/' then
    incomingPath = (incomingPath and incomingPath ~= '') and incomingPath or '/'
    incomingPath = string.sub(incomingPath, 1, 1) == '/' and incomingPath or utils.concatStrings({'/', incomingPath})
    return incomingPath
  else
    return utils.concatStrings({backendPath, incomingPath})
  end
end