在 golang 中将无服务器功能部署到 digitalocean

Question

我正在尝试在数字海洋无服务器功能中构建一个 CRUD。我正在使用 sqlite3 进行测试并插入到表中。当我尝试将其部署到产品中时，出现错误。这是我的代码：package mainimport (    "database/sql"    "fmt"    _ "github.com/mattn/go-sqlite3")func Main(args map[string]interface{}) map[string]interface{} {db, err := sql.Open("sqlite3", "./data.db")checkErr(err)// insertstmt, err := db.Prepare("INSERT INTO userinfo(username, departname, created) values(?,?,?)")checkErr(err)res, err := stmt.Exec("rumi", "CSE", "2012-12-09")checkErr(err)id, err := res.LastInsertId()checkErr(err)fmt.Println(id)db.Close()msg := make(map[string]interface{})msg["body"] = idreturn msg}我得到的错误：➜  functions git:(master) ✗ doctl serverless deploy . --remote-buildDeploying '/home/rumi/go/src/github.com/manjurulhoque/digitalocean-cloud-functions/functions'  to namespace 'fn-b799454253a-a40440-4639-937f-05102a48c06e'  on host 'https://fa45as-sgp1-18b45c02afgc.doserverless.co'Submitted action 'blog/createBlog' for remote building and deployment in runtime go:default (id: b3d5421ee5656bb44c4295421eebb44c642cf)Submitted action 'sample/hello' for remote building and deployment in runtime go:default (id: b3d5421ee5656bb44c4295421eebb44c642cf)Submitted action 'blog/db' for remote building and deployment in runtime go:default (id: edcc9eefce9f4aa58c9eefce9f2aa5e6)Transcript of remote build session for action 'blog/db':Output of failed build in /tmp/slices/builds/fn-b79956253a-a4080-465639-95637f-05102a48c06e/blog_db/2022-10-22T04-23-08.642Z/packages/blog/dbinitializing modulesgo: creating new go.mod: module execgo: to add module requirements and sums:        go mod tidybuildingdb.go:6:2: no required module provides package github.com/mattn/go-sqlite3; to add it:        go get github.com/mattn/go-sqlite3Deployed functions ('doctl sbx fn get <funcName> --url' for URL):  - blog/createBlog  - sample/helloFailures:Error: While deploying action 'blog/db': './build.sh' exited with code 1虽然我没有找到任何好的资源来连接到数据库。任何帮助，将不胜感激。

Answer 1

在 DO 中，每个函数本身都是一个应用程序。所以你需要在每个函数目录中创建go.mod和。go.sum

下面是我的项目结构之一

注意：我写了一篇关于如何为 DO 设置 golang 应用程序的文章 https://medium.com/@manzurulhoque/use-package-in-digital-ocean-do-serverless-functions-using-golang-cb5200ab22ee