/**
* (c) Copyright Ascensio System SIA 2025
*
* Licensed 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.
*
* @license
*/
/**
* @module
* @mergeModuleWith util/express
*/
import type express from "express"
import type * as context from "../context.ts"
const outgoing = "<--"
const incoming = "-->"
interface Payload {
sessionId?: string
method?: string
url?: string
status?: number
duration?: string
}
export interface ContextProvider {
get(): context.Context | undefined
}
export interface Logger {
info(msg: string, o?: object): void
warn(msg: string, o?: object): void
error(msg: string, o?: object): void
}
export function logger(p: ContextProvider, l: Logger): express.Handler {
return (req, res, next) => {
let o: Payload = {}
let c = p.get()
if (c && c.sessionId) {
o.sessionId = c.sessionId
}
o.method = req.method
o.url = req.url
l.info(incoming, o)
let s = Date.now()
res.on("finish", () => {
o.status = res.statusCode
let d = Date.now() - s
if (d < 1000) {
o.duration = `${d}ms`
} else {
o.duration = `${Math.round(d / 1000)}s`
}
l.info(outgoing, o)
})
next()
}
}
