Updated client to allow usage of FormData from node since it has been available through node since v16 and client requires >v18. Fixed 405 throws test due to change in error message format.

Author: Layoric

Diff for: src/index.ts

@@ -1534,7 +1534,7 @@ export function createFieldError(fieldName:string, message:string, errorCode:str
     return new ResponseStatus({ errors:[new ResponseError({fieldName, errorCode, message})] })
 }
 
-export function isFormData(body:any) { return typeof window != "undefined" && body instanceof FormData }
+export function isFormData(body:any) { return body instanceof FormData }
 
 function createErrorResponse(errorCode: string|number, message: string, type:ErrorResponseType=null) {
     const error = apply(new ErrorResponse(), e => {

Diff for: tests/client.spec.ts

@@ -87,7 +87,7 @@ describe ('JsonServiceClient Tests', () => {
         const api = await testClient.api(new dtos.Overview())
 
         expect(api.errorCode).to.be.equal('NotImplementedException')
-        expect(api.errorMessage).to.be.equal('The operation \'Overview\' does not exist for this service')
+        expect(api.errorMessage).to.be.equal('The operation does not exist for this service')
     })
 
     it('Should throw 401', async () => {

Diff for: tests/usages.spec.ts

@@ -3,6 +3,7 @@ const { expect, assert } = chai
 import {
     each,
     JsonServiceClient,
+    isFormData
 } from '../src/index'
 
 describe ('Usages Tests', () => {
@@ -32,4 +33,9 @@ describe ('Usages Tests', () => {
         expect(r.c).eq(1)
     })
 
+    it ('Does allow usage of FormData from node', () => {
+        const formData = new FormData()
+        formData.append('a', 'b')
+    })
+
 })