离线的无服务器 v4：未构建打字稿处理程序

Question

我在将无服务器 v3 中的大型应用程序迁移到 v4 时遇到问题。我正在使用打字稿，并使用无服务器离线在本地进行开发。

但是在更改 v4 引入的所有配置并运行 sls offline start 后，所有启动速度都非常快，但是当我尝试访问一条路线时，出现此错误：

✖ Unhandled exception in handler 'externalUserInfo'.
[serverless-v2] ✖ Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in /Users/user/Development/aws/serverless-monorepo/node_modules/@middy/http-error-handler/package.json
[serverless-v2]     at exportsNotFound (node:internal/modules/esm/resolve:304:10)
[serverless-v2]     at packageExportsResolve (node:internal/modules/esm/resolve:594:13)
[serverless-v2]     at resolveExports (node:internal/modules/cjs/loader:634:36)
[serverless-v2]     at Function._findPath (node:internal/modules/cjs/loader:724:31)
[serverless-v2]     at node:internal/modules/cjs/loader:1211:27
[serverless-v2]     at nextResolveSimple (/Users/user/Development/aws/serverless-monorepo/node_modules/tsx/dist/register-DCnOAxY2.cjs:3:942)
[serverless-v2]     at /Users/user/Development/aws/serverless-monorepo/node_modules/tsx/dist/register-DCnOAxY2.cjs:2:2550
[serverless-v2]     at /Users/user/Development/aws/serverless-monorepo/node_modules/tsx/dist/register-DCnOAxY2.cjs:2:1624
[serverless-v2]     at resolveTsPaths (/Users/user/Development/aws/serverless-monorepo/node_modules/tsx/dist/register-DCnOAxY2.cjs:3:760)
[serverless-v2]     at Function._resolveFilename (/Users/user/Development/aws/serverless-monorepo/node_modules/tsx/dist/register-DCnOAxY2.cjs:3:1038)

无服务器（或无服务器离线）似乎完全忽略了我的处理程序位于打字稿中并且根本不编译的事实。我封锁了 3 个小时，没有任何解决方案...

这是我的 serverless.mjs 配置：

export default {
    "frameworkVersion": "4",
    "package": {
        "individually": true,
        "excludeDevDependencies": true
    },
    "provider": {
        "name": "aws",
        "region": "eu-west-1",
        "runtime": "nodejs20.x",
        "architecture": "arm64",
        "memorySize": 1024,
        "deploymentMethod": "direct",
        "apiGateway": {
            "minimumCompressionSize": 1024
        },
        "stage": "${opt:stage, \"local\"}"
    },
    "build": {
        "esbuild": {
            "external": [
                "pg",
                "pg-query-stream",
                "better-sqlite3",
                "tedious",
                "mysql",
                "oracledb",
                "sqlite3",
                "sharp"
            ],
            "bundle": true,
            "buildConcurrency": 1,
            "exclude": [
                "@aws-sdk"
            ],
            "outputFileExtension": ".mjs",
            "packagerOptions": {
                "scripts": [
                    "npm install --os=linux --cpu=arm64 sharp"
                ]
            }
        }
    },
    "custom": {
        "prune": {
            "automatic": true,
            "number": 3
        },
        "cors": {
            "origin": "*",
            "allowCredentials": false,
            "headers": [
                "Allow-Header",
                "Content-Type",
                "X-Amz-Date",
                "Authorization",
                "X-Api-Key",
                "X-Api-Version",
                "X-Amz-Security-Token",
                "X-Amz-User-Agent",
                "AuthToken",
                "OrgId",
                "CustomerId"
            ]
        },
        "serverless-offline": {
            "noAuth": true,
            "useChildProcesses": true,
            "allowCache": true
        }
    },
    "plugins": [
        "serverless-offline"
    ],
    "service": "serverless",
    "functions": {
        "externalUserInfo": {
            "handler": "stacks/users/src/handlers/external-information-api.handler", // Typescript handler
            "maximumRetryAttempts": 0,
            "events": [
                {
                    "http": {
                        "method": "get",
                        "path": "/account",
                        "private": true
                    }
                }
            ]
        },
    }
}

Answer 1

目前，我找到的唯一解决方案并不完美：我停用无服务器构建过程

build.esbuild: false

并添加

serverless-esbuild

插件。

之后，构建工作正常，但它不是一个完美的解决方案：正常情况下，使用 serverless-v4，我不必通过第三方模块来构建 typescript。