Why does HttpClient in Angular 4 automatically assume that the request I am sending is in JSON format?

Currently, I am working with Angular 4's http client to communicate with a server that provides text data. To achieve this, I have implemented the following code snippet:

this.http.get('assets/a.txt').map((res:Response) => 
res.text()).subscribe((data: any) => {
  console.log(data.text());
});

Surprisingly, even though I haven't specified anywhere that the response is in JSON format, I encountered the following error:

SyntaxError: Unexpected token a in JSON at position 0 at Object.parse () at XMLHttpRequest.onLoad

I find it amusing how they automatically assume the response is in JSON format :)

jsonangulartypescriptangular-httpclient

Answer №1

The default response of the new HttpClient is in JSON format. If you want to receive the response in a different format, you can specify it using the requestOption with responseType: 'text'. For more details on this feature, you can refer to the following link: https://angular.io/guide/http#requesting-non-json-data

Below is an example:

this.http.get('assets/a.txt', { responseType: 'text' }).map((res:Response) => 
res).subscribe((data: any) => {
  console.log(data);
});

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

Is there a method to incorporate absolute paths in SCSS while working with Vite?

Currently, I am experimenting with React + Vite as webpack seems to be sluggish for me. My goal is to create a project starter, but I am facing difficulties in getting SCSS files to use absolute paths. Despite including vite-tsconfig-paths in my vite.confi ...

reactjstypescriptsassabsolutevite

Angular Application Functions Properly on Local Machine, Yet Experiences Issues When Deployed on Azure

I've been making the transition from AngularJS to Angular 2 and beyond. I found a tutorial that helped me set up routing with multiple components using Visual Studio IDE, which worked flawlessly on my local machine: However, when I tried to publish i ...

angularazureroutes

Search timeout restriction

I have a function that makes a request to the server to retrieve data. Here is the code for it: export default class StatusChecker { constructor() { if (gon.search && gon.search.searched) { this.final_load(); } else { this.make_req ...

javascriptjquerytypescript

Encountering an issue with setting up MikroORM with PostgreSQL due to a type

I'm currently working on setting up MikroORM with PostgreSQL, but I've encountered a strange error related to the type: Here is the code snippet: import { MikroORM, Options} from "@mikro-orm/core"; import { _prod_ } from "./consta ...

typescriptpostgresqlmikro-orm

Utilizing ConfigurationBuilder to incorporate null values into a list using a json file

As I attempt to insert a list of enums into appsettings.json for later iteration in the code, I encounter an issue. When I include a null value in the list within the JSON file, it does not populate as a null value when loading the Settings from the file. ...

c#json.net-coreconfiguration

Mastering regular expressions in TypeScript

My goal is to perform linting on staged files that are either .ts or .tsx and located within the src folder. I am aware that for selecting all js files one can use "*.js": [--list of commands--] inside the lint staged property. I'm curious to learn m ...

javascriptnode.jsregextypescriptpackage.json

Unable to locate the Chart object within the chartjs-plugin-labels.js file

Hello there, I am currently working on an Angular project where I want to incorporate a chart plugin. To achieve this, I executed the following commands: npm install angular2-chartjs npm install chartjs-plugin-labels Following that, I imported it into my ...

javascriptangulartypescriptpluginschart.js

Perform an Angular HTTP request and await responses from multiple sources

I'm currently working with Angular 11 and looking to make an HTTP call to an API that will trigger a server-side process. Here's the code for the HTTP call: processData(data) { return this.httpClient.post('https://myurl/api/process&apos ...

angulartypescriptrxjsangular11

Customizing response headers in vanilla Node.js

My Node.js setup involves the following flow: Client --> Node.js --> External Rest API The reverse response flow is required. To meet this requirement, I am tasked with capturing response headers from the External Rest API and appending them to Nod ...

javascriptjsonnode.js

What are the methods for showcasing data within a string?

I'm struggling to figure out how to display the column names from a JSON file. Currently, all the column names are being displayed in one column, and empty fields are showing up for some reason. How can I format it so that the column names are listed ...

angular

Import JSON data into Angular 2 Component

After much effort, I have finally figured out how to load JSON data into an Angular 2 Component. datoer.service.ts: import { Injectable } from '@angular/core'; import { Http, Response } from '@angular/http'; import { Observable } from ...

jsonangulartypescript

Issue with Retrieving Images from Users using WhatsApp Cloud API

Currently, I am in the process of working on a project that involves allowing users to report events by submitting images to a WhatsApp bot. During testing, I discovered an opportunity to retrieve attachments via the endpoint curl -X GET 'https://grap ...

jsonexpresswhatsapp

Error message: Unable to assign value to 'kind' property as it is undefined in Angular Webpack application

Unexpectedly, my Angular application is encountering an error during the build process. TypeError: C:\Users\c\dev\privacy\node_modules\@fortawesome\angular-fontawesome\fesm2020\angular-fontawesome.mjs: Cannot se ...

javascriptangularwebpack

Issue with migrating from Angular version 2.4.10 to 4.0.0

After attempting to update my application from Angular 2.4.10 to 4.0.0, I used the following command: "npm install @angular/common@next @angular/compiler@next @angular/compiler-cli@next @angular/core@next @angular/forms@next @angular/http@next @angular/pl ...

angular

Loading data from controller in view using Ajax with a 'loading' indicator

Currently, I am fetching data using cURL in my controller and displaying it on my view file. However, the loading time from cURL is quite long, which results in extended loading times for my website. I would like to implement a loading effect that display ...

phpjqueryjsonajaxcurl

Angular 2's Multi-select dropdown feature allows users to select multiple options

Recently, I encountered an issue with customizing CSS for angular2-multiselect-dropdown. I found the solution in this link: https://www.npmjs.com/package/angular2-multiselect-dropdown. I have included my code below. Any assistance in resolving this matter ...

javascripthtmlcssangular

I keep encountering an issue with getJson

A snippet of my JavaScript code retrieves a JSON object from a URL. Here is the portion of the code in question: <script> $(document).ready(function(){ $("button").click(function(){ $.getJSON('url_address', {}, function(data) { ...

javascriptjqueryhtmljson

Unable to access structuredClone on the global object within a Node.js application

structuredClone is causing issues in my NodeJS application. Whenever I try to utilize it, I encounter the error: structuredClone is not defined nodejs. To troubleshoot, I created a simple file and executed the following: console.log({ globals: Object. ...

node.jstypescriptglobalstructured-clone

Guide to integrating Inversify with Mocha

In my TypeScript Node.js application, I am implementing Dependency Injection using Inversify. The functionality works perfectly during the app's execution. However, I encountered an issue with the @injectable() annotation when running tests. An error ...

typescriptmocha.jsinversifyjs

Combine two JavaScript values dynamically and assign them to the corresponding child in Play Scala

I am trying to merge two sets of data into a specific structure. The first set 'x' contains information about sports, states, and companies in JSON format. The second set 'y' includes labels and IDs related to the same categories. I nee ...

jsonscalaplayframeworkjsvalue