Merge pull request #190 from anzharip/fix/typing-update-from-busboy

fix: typing update from busboy

src/index.ts

@@ -6,7 +6,7 @@ import { ParsedMultipartFormData } from "./types/parsed-multipart-form-data.type
 import { Config } from "./types/config.type";
 
 export default async function parseMultipartFormData(
-  request: HttpRequest & { headers: { "content-type": string } },
+  request: HttpRequest,
   options?: Config
 ): Promise<ParsedMultipartFormData> {
   return new Promise((resolve, reject) => {
@@ -16,9 +16,14 @@ export default async function parseMultipartFormData(
 
       let busboy;
       if (options) {
-        busboy = new Busboy({ headers: request.headers, ...options });
+        busboy = new Busboy({
+          headers: (request.headers as unknown) as Busboy.BusboyHeaders,
+          ...options,
+        });
       } else {
-        busboy = new Busboy({ headers: request.headers });
+        busboy = new Busboy({
+          headers: (request.headers as unknown) as Busboy.BusboyHeaders,
+        });
       }
 
       busboy.on(

test/index.spec.ts

@@ -4,7 +4,7 @@ import fs from "fs";
 import parseMultipartFormData from "../src/index";
 
 describe("index.js", () => {
-  let request: HttpRequest & { headers: { "content-type": string } };
+  let request: HttpRequest;
 
   beforeEach(async () => {
     const file1 = fs.readFileSync("test/fixture/dummy-data.json");
@@ -50,6 +50,13 @@ describe("index.js", () => {
     }).rejects.toThrow();
   });
 
+  it("should reject the promise due to missing content-type", async () => {
+    delete request.headers["content-type"];
+    expect(async () => {
+      await parseMultipartFormData(request);
+    }).rejects.toThrow();
+  });
+
   it("should accept options parameter, parse only one field", async () => {
     const { fields } = await parseMultipartFormData(request, {
       limits: { fields: 1 },