Error: No "exports" main defined in graphql-upload/package.json

Question

已安装 graphql-upload，执行

import { graphqlUploadExpress } from 'graphql-upload';

并收到此错误：错误：graphql-upload/package.json

中未定义“导出”主体

依赖关系：

"graphql-upload": "^14.0.0",
"graphql": "15.8.0",
"graphql-request": "^4.2.0",
"graphql-tools": "^8.2.0",
"@nestjs/axios": "^0.0.7",
"@nestjs/common": "^8.4.1",
"@nestjs/config": "^1.1.5",
"@nestjs/core": "^8.4.1",
"@nestjs/graphql": "^9.1.2",
"@nestjs/platform-express": "^8.0.0",

节点版本：v16.10.0

Answer 1

graphql-upload 库没有任何主要 index.js re-export 的所有功能。它具有针对所有特定功能的直接文件导出。它在 package.json 文件中的 exports 键下指定，如下所示：

"exports": {
    "./GraphQLUpload.js": "./GraphQLUpload.js",
    "./graphqlUploadExpress.js": "./graphqlUploadExpress.js",
    "./graphqlUploadKoa.js": "./graphqlUploadKoa.js",
    "./package.json": "./package.json",
    "./processRequest.js": "./processRequest.js",
    "./Upload.js": "./Upload.js"
  },

因此，您需要指定一个 sub-module 路径，而不是直接从包根导入：

import graphqlUploadKoa from "graphql-upload/graphqlUploadKoa.js";

参考：package.json of graphql-upload

Answer 2

我个人放了一个 ts-ignore 来忽略错误。

// @ts-ignore
import GraphQLUpload from 'graphql-upload/GraphQLUpload.js';
// @ts-ignore
import Upload from 'graphql-upload/Upload.js';

然后像那样导入。脏了也希望能帮到你！

Answer 3

所以问题出在 .default 构建设置中。您可以删除它，但是当我们删除它时，我们发现其他模块存在问题，因此我们通过以下方式解决了这个问题：

import Upload = require('graphql-upload/Upload.js');

它看起来很脏，但它确实有效。

您可以在 GitHub 上的问题中查看有关此模块的讨论：https://github.com/jaydenseric/graphql-upload/issues/305#issuecomment-1136574019

Error: No "exports" main defined in graphql-upload/package.json

Error: No "exports" main defined in graphql-upload/package.json

javascript

graphql

nestjs

express-graphql