Nestjs 中的 Graphql Apollo 上传返回无效值 {}

Question

我尝试使用 graphql-upload 的 GraphQLUpload 标量向 GraphQL 端点添加上传参数:

import { FileUpload, GraphQLUpload } from 'graphql-upload'

@Mutation(() => Image, { nullable: true })
async addImage(@Args({name: 'image', type: () => GraphQLUpload}) image: FileUpload): Promise<Image | undefined> {
// do stuff...
}

这最初奏效了。然而，几次运行后，它开始返回以下错误:

"Variable \"$image\" got invalid value {}; Expected type Upload. Upload value invalid."

尝试使用 Insomnia 客户端和 curl 进行测试:

curl localhost:8000/graphql \
  -F operations='{ "query": "mutation ($image: Upload!) { addImage(image: $image) { id } }", "variables": { "image": null } }'
  -F map='{ "0": ["variables.image"] }'
  -F 0=@/path/to/image

Answer 1

使用 import {GraphQLUpload} from "apollo-server-express"不是 从“graphql-upload”导入 GraphQLUpload