Handle js async error

one.js

function requestAPI() { //requestDB 實作都類似只是reject的error不同
    return new Promise((resolve, reject) => {
        request('https://A.com', (error, data) => {
            if (error) reject(new customError("I'am requestAPI",error))
            else resolve(data)
        })
    })
}

// main
try {
    await requestAPI()
    await requestDB()
} catch (error) {
    switch (error.name) {
        case "I'am requestAPI":
            console.log('requestAPI error')
            break
        case "I'am requestDB":
            console.log('requestDB error')
            break
    }
}

three.js

function requestAPI() { //requestDB 實作都類似只是reject的error不同
    return new Promise((resolve, reject) => {
        request('https://A.com', (error, data) => {
            if (error) resolve(error)
            else resolve(data)
        })
    })
}

// main
responseAPI = await requestAPI().catch(error => error)
if (_.isError(responseAPI)) {
    console.log('requestAPI error')
}
responseDB = await requestDB().catch(error => error)
if (_.isError(responseDB)) {
    console.log('requestDB error')
}

two.js

function requestAPI() { //requestDB 實作都類似只是reject的error不同
    return new Promise((resolve, reject) => {
        request('https://A.com', (error, data) => {
            if (error) resolve([null, error])
            else resolve([data, null])
        })
    })
}

// main
[responseAPI, errorAPI] = await requestAPI()
if (errorAPI) {
    console.log('requestAPI error')
}
[responseDB, errorDB] = await requestDB()
if (errorDB) {
    console.log('requestDB error')
}