node.js读写json文件的方法

const fs = require('fs')
const path = require('path')
const configFile = path.resolve(__dirname, './config.json')

router.get('/get_config', async ctx => {
    try {
        const data = fs.readFileSync(configFile, 'UTF-8').toString()
        let config = JSON.parse(data)
        ctx.body = config
    }
    catch (error) {
        console.log('get_config.error', error)
    }
}

router.post('/add_config', async ctx => {
    try {
        const data = ctx.request.body
        fs.writeFileSync(configFile, JSON.stringify(data))
        ctx.body = data
    }
    catch (error) {
        console.log('add_config.error', error)
    }
})