若要以 Query String 傳遞資料，可透過 req.query 讀取。
Version
Express 4.17.1
req.query
import express from 'express'
import cors from 'cors'
let app = express ()
app.use (cors ())
app.get ('/api/articles', (req, res) => res.json ({
pageSize: req.query.pageSize,
pageNum: req.query.pageNum,
articles: [
{
id: 1,
title: 'Title 1',
content: 'Content 1'
},
{
id: 2,
title: 'Title 2',
content: 'Content 2'
},
{
id: 3,
title: 'Title 3',
content: 'Content 3'
}
]
}))
app.listen (8080, _ => console.log ('Node listen on port: 8080'))
第 7 行
app.get ('/api/articles', (req, res) => res.json ({
pageSize: req.query.pageSize,
pageNum: req.query.pageNum,
articles: [
{
id: 1,
title: 'Title 1',
content: 'Content 1'
},
{
id: 2,
title: 'Title 2',
content: 'Content 2'
},
{
id: 3,
title: 'Title 3',
content: 'Content 3'
}
]
}))
以 req.query 取得 query string。
Conclusion
req.query可簡單從 URL 讀取 query string