The ASP.NET Core Web API successfully sends back a response, but unfortunately, the frontend is only seeing an empty value along with a status code of 200 (OK)

Currently, I am delving into the world of web APIs and have stumbled upon a perplexing issue that requires assistance.

I have an active ASP.NET Core Web API at the backend, while at the frontend, an Angular application (running on version 15.1.5) is in play. Upon making a GET request to one of my API endpoints with a customized header using Postman, I receive the expected response body back alongside the header itself. However, when replicating the same request from my Angular application, the response body comes back empty. Ideally, I would like the header passed in Postman to be visible on my frontend as well.

What steps can I take to troubleshoot this puzzling situation?

The Postman call details are also attached for reference.

Postman

Despite numerous attempts at troubleshooting, I find myself facing an unresolved dilemma. My focus lies on building an Angular application that interacts with an ASP.NET Core Web API. A pressing issue arises when calling one of my API endpoints through my Angular application; the response body appears empty despite successful execution of the code beneath.

As part of my investigation into the matter, I have utilized console.log statements within my codebase and ensured smooth operation until the point of the actual request. Nevertheless, the response body persists in its emptiness.

This endeavor prompts me to question whether parameters passed through Postman should be visible on the frontend of my application. Additionally, I observe an empty string displayed on Swagger UI, hinting at a possible correlation with my existing issue.

How may I tackle this conundrum effectively?

c#angulartypescriptpostmanasp.net-core-webapi

Answer №1

It is necessary to include a globally unique identifier (GUID) string in the headers:

let headers = new Headers();
headers.append('X-CM-SSO-ACCOUNTGUID','<GUID>');

....
return this.http
      .get(this.apiEndpoint, {headers:headers, ...}
      ....

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

The async and await functions do not necessarily wait for one another

I am working with Typescript and have the following code: import sql = require("mssql"); const config: sql.config = {.... } const connect = async() => { return new Promise((resolve, reject) => { new sql.ConnectionPool(config).connect((e ...

javascripttypescriptpromisees6-promise

Modal for Firestore CRUD operations update()

Currently seeking assistance with a CRUD system that involves modal dialogues. I have successfully implemented adding and deleting functionalities, but I am encountering an issue with editing. Although I can retrieve the data for each record in its respect ...

angularfirebaseangular-material2angularfire2google-cloud-firestore

What is the best way to include documentation for custom components using jsDoc?

Within my Vuejs inline template components, we typically register the component in a javascript file and define its template in html. An example of such a component is shown below: Vue.component('compare-benefits', { data() { // By return ...

typescriptvue.jsvisual-studio-codeintellisensejsdoc

Dealing with dynamic meta tags in Angular for server side rendering (SSR): Best practices and tips

Currently, I am attempting to display dynamic data in the title, meta, and description tags of an Angular application using the nguniversal package. However, despite my efforts, I have not been able to locate comprehensive documentation on how to achieve t ...

node.jsangularserver-side-rendering

Encountering an issue with Angular 2.0.1 Router where it throws an EmptyError due to

I am struggling to set up Angular 2 routing properly. I am currently using Angular 2 with Webpack. While looking at the Angular 2 webpack starter, I noticed they had webpack handling their html and links generation, but I was hoping to avoid webpacking my ...

angularwebpackangular-routing

Failure during building Angular 13 library with Ivy partial compilation mode

Recently, I encountered an issue while trying to install an npm package that utilized node-gyp. In an attempt to resolve the problem, I upgraded my Node.js minor version from 16.13.0 to 16.13.1 and also updated my Angular CLI from 13.0.2 to 13.2.0. After ...

angularangular-ivy

Assignment of type 'Object' is incompatible with type in new HttpClient / HttpGetModule implementation within Angular

After following the angular tutorial, I decided to test out the new httpClient.Get method. However, it seems that no matter what, it always returns results of type Object. // HttpClient getHeroes2 () { this.http.get<Hero[]>(this.heroesUrl) ...

angulartypescript

What steps can be taken to prevent a tab click from causing issues?

Within my application, there is a tab group that contains four tabs: <ion-tabs> <ion-tab [root]="tab1Root" tabTitle="Programmes" tabIcon="icon-programmes"></ion-tab> <ion-tab [root]="tab2Root" (ionSelect)="studioCheck()" tabTitle= ...

angulartypescriptionic-frameworkionic2

Saving a local JSON file in Angular 5 using Typescript

I am currently working on developing a local app for personal use, and I want to store all data locally in JSON format. I have created a Posts Interface and an array with the following data structure: this.p = [{ posts:{ id: 'hey man&ap ...

jsonfiletypescriptsaveangular5

Exploring Blob functionality in TypeScript?

I defined a global Blob object: declare global { interface Blob { prototype: Blob; new (name: string, url: string): Blob; } } It is functioning correctly in this code snippet: export const blobToFile = (blob: Blob) => { let file: File | n ...

typescriptnext.jsblob

Tips for setting ngModel and name attributes in an angular test for a custom component

Just getting started with angular. I recently developed a custom component that implements the ControlValueAccessor to allow developers to easily access its value. Here's an example of how it can be used: <app-date [label]="'Date 2&apos ...

angulartypescripttestingangular-componentsangular-test

Can we switch back to a partial view and return it as JSON?

I encountered a problem with my views, specifically the "index" and "_Track". I am trying to return my datalist to "_Track", which is a partial view. Can someone please assist me with this issue? The error message I received states: "for each statement can ...

c#jsonajaxasp.net-mvc

The Kendo UI Combobox triggering the change event twice

After noticing some strange behavior in all the comboboxes within my application, I realized that the Kendo UI ComboBoxes were triggering the change event twice, resulting in two HTTP requests being made when the code inside only required one. Despite cond ...

c#jqueryangularjscomboboxkendo-ui

Using Vuelidate with Vue 3, vue-class-component, and TypeScript combination

Is there anyone who has successfully implemented Vuelidate with Vue 3 using the Composition API? Although Vuelidate is still in alpha for Vue 3, I believe that if it works with the Composition API, there must be a way to make it work with classes as well. ...

typescriptvue.jsvuelidatevue-class-components

Is there a way to customize the appearance of a MUI5 Tooltip using emotion?

I went through the information in this Stack Overflow post and experimented with the styled method. The code snippet I used is as follows: import * as React from 'react'; import { styled } from '@mui/material/styles'; import Tooltip, { ...

javascriptreactjstypescriptmaterial-uiemotion

The random number generator in TypeScript not functioning as expected

I have a simple question that I can't seem to find the answer to because I struggle with math. I have a formula for generating a random number. numRandomed: any; constructor(public navCtrl: NavController, public navParams: NavParams) { } p ...

javascriptmathtypescriptrandomionic2

Angular 2: Capturing scroll events from the parent element within a Directive

One of the challenges I encountered is with a directive called [appInvalidField] that functions like a custom tooltip for validation purposes. To ensure it appears above everything else within dialogs, I attach it to the body and position it near the relev ...

angulartypescript

Encountered an issue with npm install where it cannot read the property 'startsWith' of null

I have been trying to find a solution to this problem everywhere, but without success. Most answers suggest that there might be an issue with the proxy settings. Every time I attempt to use npm install -g package-name, an error occurs. npm ERR! Cannot rea ...

node.jsangularnpm

Tips for setting values to the child component property in Angular 4

When I was using ngif, I encountered an issue with getting the element reference of the child component. After extensive searching, I discovered that in order to access the element, I needed to use view children instead of view child. While I am able to ge ...

angulartypescriptprimeng

The counterpart of the RxJS setTimeout operator

Looking for a RxJS operator alternative to set/clearTimeout in these circumstances: this.mouseEnterSubscription = this.mouseEnterStream .subscribe(() => { this.timeout = setTimeout(() => { void this.playVideo(); }, 500) }); this.mo ...

javascripttypescriptrxjssettimeout