希望你能帮我解决以下问题。我试图从客户端上传一个约3MB的excel文件到API，首先将文件转换为DataURL，然后将其作为字符串发送。这适用于较小的文件，但不知何故，它似乎阻止了我的较大文件。
当我上传文件时，我收到以下错误。

POST body missing. Did you forget use body-parser middleware?

我已经做了自己的研究，发现更多的人有同样的问题，虽然我找不到解决方案。https://github.com/apollographql/apollo-server/issues/792
这是我在服务器端使用的代码。

import { ApolloServer, gql } from 'apollo-server-micro'

type Props = {
    _id: string
    file: string[]
}

const typeDefs = gql`
    type Mutation {
        uploadFile(file: [String!]!): Boolean!
    }
    type Query {
        readUpload(_id: String!): Boolean!
    }
`

const resolvers = {
    Mutation: {
        async uploadFile(_: any, { file }: Props) {   
            console.log(file)
            
            return true
        }
    },
    Query: {
        async readUpload(_: any, { _id }: Props) {
        }
    }
}

const apolloServer = new ApolloServer({ 
    typeDefs, 
    resolvers
})

export const config = {
    api: {
        bodyParser: false
    }
}

// Ensure to put a slash as the first character to prevent errors.
export default apolloServer.createHandler({ path: '/api/uploads' })

这是我在客户端使用的代码。

import { useRef } from 'react'

import { uploadFile } from '../graphql/fetchers/uploads'
import { UPLOAD_FILE_QUERY } from '../graphql/queries/uploads'

export default function Upload() {
    const inputElement = useRef<HTMLInputElement>(null)

    const submitForm = (event: any) => {
        event.preventDefault()
        const files = inputElement.current?.files

        if (files) {
            const fileReader = new FileReader()

            fileReader.onload = async () => {
                try {
                    const result = fileReader.result as string
                    try {
                        console.log(result)
                        await uploadFile(UPLOAD_FILE_QUERY, { file: result })  
                    } catch(error) {
                        console.log(error)
                    }           
                } catch(error) {
                    console.log(error)
                }
            }
            fileReader.readAsDataURL(files[0]) 
        }
    }

    return (
        <form>
            <input ref={inputElement} type='file'></input>
            <button onClick={(event) => submitForm(event)}>Submit</button>
        </form>
    )
}