When incorporating TypeScript, always remember to indicate any missing attributes, such as rawBody

Question

When incorporating TypeScript, always remember to indicate any missing attributes, such as rawBody

When I compile my code, I encounter this console error:

The 'rawBody' property does not exist on the 'Request' type.

This error occurs specifically on this line of code:

busboy.end(req.rawBody);

According to these docs, the 'rawBody' should be present. However, upon switching to TypeScript, the error arises.

Although the code still functions properly when served locally, it is important for me to understand and rectify these type errors. If I were to simply ignore them, why use TypeScript at all? I might as well stick with plain JavaScript.

typescript express

Answer 1

Answer №1

Encountering this issue at the moment. Typescript is indicating that it shouldn't be present, but it is. To address this, you can extend the typescript definition of Express.Request like multer does.

import { Request, ParamsDictionary, NextFunction, Response } from "express-serve-static-core";
interface BusboyFile {
    fieldname: string
    file: NodeJS.ReadableStream | undefined
    filename: string;
    destination: string;
    encoding?: string,
    mimetype?: string
}
declare global {
    namespace Express {
        interface Request {
            files: {
                [fieldname: string]: BusboyFile[];
            };
            rawBody: any
        }
    }
}

type uploadBusboy = (request: ExpressRequest<ParamsDictionary>, response: Response, next: NextFunction)=>void

Following this, here's how to implement my function:

export const uploadBusboy: uploadBusboy = (request, response, next) => {
    const busboy = new Busboy({ headers: request.headers });
    // ...place your code here
    busboy.end(request.rawBody);
}
export default uploadBusboy

Answer 2

Encountering this issue at the moment. Typescript is indicating that it shouldn't be present, but it is. To address this, you can extend the typescript definition of Express.Request like multer does.

import { Request, ParamsDictionary, NextFunction, Response } from "express-serve-static-core";
interface BusboyFile {
    fieldname: string
    file: NodeJS.ReadableStream | undefined
    filename: string;
    destination: string;
    encoding?: string,
    mimetype?: string
}
declare global {
    namespace Express {
        interface Request {
            files: {
                [fieldname: string]: BusboyFile[];
            };
            rawBody: any
        }
    }
}

type uploadBusboy = (request: ExpressRequest<ParamsDictionary>, response: Response, next: NextFunction)=>void

Following this, here's how to implement my function:

export const uploadBusboy: uploadBusboy = (request, response, next) => {
    const busboy = new Busboy({ headers: request.headers });
    // ...place your code here
    busboy.end(request.rawBody);
}
export default uploadBusboy

Answer 3

Answer №2

Utilizing TypeScript with Firebase Cloud Function has led to encountering this error.

To work around it temporarily, I have resorted to using the as keyword in order to instruct the compiler to treat the req object as a different type when accessing the rawBody.

For instance:

import { Request, Response } from "express-serve-static-core"
import { https } from "firebase-functions";

type FirebaseRequest = https.Request

// The parameters still adhere to the default types from express, 
// however, they are interpreted as a different type when interacting with rawBody
const myFunc = async (req: Request, res: Response) => {
  const rawVar = (req as FirebaseRequest).rawBody;
}

Answer 4

Utilizing TypeScript with Firebase Cloud Function has led to encountering this error.

To work around it temporarily, I have resorted to using the as keyword in order to instruct the compiler to treat the req object as a different type when accessing the rawBody.

For instance:

import { Request, Response } from "express-serve-static-core"
import { https } from "firebase-functions";

type FirebaseRequest = https.Request

// The parameters still adhere to the default types from express, 
// however, they are interpreted as a different type when interacting with rawBody
const myFunc = async (req: Request, res: Response) => {
  const rawVar = (req as FirebaseRequest).rawBody;
}

Answer 5

Answer №3

When it comes to my code where I make the following call:

busboy.on("finish"), () => {
  <insert code here>
});

Instead of using busboy.end(req.rawBody);, I decided to go with:

req.pipe(busboy);

And lo and behold, everything is now working as intended!

Answer 6

When it comes to my code where I make the following call:

busboy.on("finish"), () => {
  <insert code here>
});

Instead of using busboy.end(req.rawBody);, I decided to go with:

req.pipe(busboy);

And lo and behold, everything is now working as intended!

Answer 7

Answer №4

It seems like there's a missing piece of information regarding your code. Ensure that body-parser is properly installed and required in your project.

const bodyParser = require('body-parser')

Answer 8

It seems like there's a missing piece of information regarding your code. Ensure that body-parser is properly installed and required in your project.

const bodyParser = require('body-parser')

When incorporating TypeScript, always remember to indicate any missing attributes, such as rawBody

Answer №1

Answer №2

Answer №3

Answer №4

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