如何修复错误：SQLITE_CANTOPEN：无法在 Zeit.co 上打开数据库？

Question

我想连接到我的数据库 sqlite3。 这在本地主机上运行良好，但在我部署到 zeit.co 时失败，出现错误：

Error: SQLITE_CANTOPEN: unable to open database

据我了解，这个问题是因为我们无法获得数据库文件的正确路径。 我尝试了一些解决方案，但仍然失败。 请帮忙！！！

这是 zeit.co 日志上的错误：

2020-02-13T07:50:40.031Z 4d5a9aed-ae26-4a09-903a-72aa08ca5140 ERROR Unhandled Promise Rejection {"errorType":"Runtime.UnhandledPromiseRejection","错误消息":"无法打开数据库文件"SQLITE_无法打开数据库错误:" "reason":{"errorType":"Error","errorMessage":"SQLITE_CANTOPEN: 无法打开数据库文件","code":"SQLITE_CANTOPEN","errno":14,"stack":["错误：SQLITE_CANTOPEN : 无法打开数据库文件"]},"promise":{"isFulfilled":false,"isRejected":true,"rejectionReason":{"errorType":"Error","errorMessage":"SQLITE_CANTOPEN: 无法打开数据库文件","code":"SQLITE_CANTOPEN","errno":14,"stack":["错误: SQLITE_CANTOPEN: 无法打开数据库文件"]}},"stack":["Runtime.UnhandledPromiseRejection: 错误: SQLITE_CANTOPEN：无法打开数据库文件"," at process. (/var/runtime/index.js:35:15)"," at process.emit (events.js:228:7)"," at eventToObjectGenerator.promiseCreated (/var/task/node_modules/bluebird/js/release/debuggability.js:258:33)"," 在 activeFireEvent (/var/task/node_modul es/bluebird/js/release/debuggability.js:301:44)"," at fireRejectionEvent (/var/task/node_modules/bluebird/js/release/debuggability.js:703:14)"," at Promise._notifyUnhandledRejection (/var/task/node_modules/bluebird/js/release/debuggability.js:90:9)"," at Timeout.unhandledRejectionCheck [as _onTimeout] (/var/task/node_modules/bluebird/js/release/debuggability.js :39:25)"," at listOnTimeout (internal/timers.js:531:17)"," at processTimers (internal/timers.js:475:7)"]} 发生未知的应用程序错误

这是我连接到sqlite的代码

const fs = require('fs');
const path = require('path');

const DBSOURCE = path.join(__dirname, 'mydb.sqlite');

const knex = require('knex')({
    client: 'sqlite3',
    connection: {
        filename: DBSOURCE
    }
});

笔记：

1. 我试过const DBSOURCE = 'mydb.sqlite' ;
2. 我试过const DBSOURCE = path.resolve(__dirname, 'mydb.sqlite');

Answer 1

对于那些从谷歌这里绊倒的人，Zeit 现在是 Vercel，并且有一个在无服务器环境中使用 MySQL 的更新示例。

https://github.com/vercel/next.js/tree/canary/examples/with-mysql