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How to read JSON in Spring Boot? - JSON parse error: Cannot deserialize value of type `X` from Array value (token `JsonToken.START_ARRAY`);
I am sending data from an Angular application to SpringBoot. The application creates an order and sends it to the server. My problem is that the server does not receive the correct object.
I console.log the output to be sent to the server, and looks alright:
The methods I use in Angular are
- createOrder() to create the order out of client, cart, and status
- onSubmit() to send the data.
On SpringBoot, trying to use @RequestBody or @ModelAttribute:
When I use @RequestBody, the server responds with
and when I use @ModelAttribute, I got:
I searched all over the Internet twice... but couldn't get what the problem is. I am new to Springboot and Angular... which might be the start of the trouble. I would appreciate if you can please shed some light on this...
- spring-boot
It look like you are mixing things:
Controller: Your contrller looks fine with @RequestBody this way you expecting a post request from the Angular.
Your angular request on the other hand look odd it should be something like this:
The order is an Angular object defined on its own .ts file.
Before calling the service build the object:
- Thank you for your answer. I tried adding the httpOptions and wrapping the order object with JSON.stringify, but still getting the same error: Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type com.slbootcamp.foodbox.entity.Cart from Array value (token JsonToken.START_ARRAY ); – Gianni Fontanot Oct 1, 2022 at 2:35
- You need to isolate the problem, it's must be mapping issue, try removing the cart from both Angular and Spring and then step by them identify the propery which failed to parsed. Then you will be able to create a new more specific question if you can't resolve it. – user2304483 Oct 1, 2022 at 3:57
- Well, I've been trying to solve this issue since days ago. I know that there is something with the way that CART is built and passed in the order. Looks like Angular does not like an array inside a JSON. If you want to take a look at the full code, the repo is github.com/giannifontanot/sl-capstone-foodbox I need to find out why the order cannot contain a cart inside with an array. – Gianni Fontanot Oct 1, 2022 at 11:12
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IMAGES
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to connect to the database use localhost:54320 username:foodbox
FoodBox-Capstone-Project Public. FoodBox is an online food delivery web application for ordering food items of different cuisines from a restaurant.
This is the FoodBox project. A proof of concept project similar to Loot Boxes in games, but for order food. Created with the solely purpose of
Capstone Project: Starter Code for Front-end using ReactJS - GitHub - upgrad-edu/food-ordering-app: Capstone Project: Starter Code for Front-end using
The project is divided into two main folders namely: /backend for all the backend related code; /fronend for all the frontend related code
Repository created for Simplilearn projects associated with the Full Stack Java Masters Program 2H2022 - GitHub - niakelleyjester/simplilearn-projects:
GitHub is where people build software. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects.
Corona Virus Sentiment Analysis.This challenge asks you to build a classification model to predict the sentiment of COVID-19 tweets.
GitHub Repo, /giannifontanot/sl-capstone-foodbox. F o o d B O X. Java Full Stack Bootcamp Gianni Fontanot - Angular. Welcome! Login to FoodBox! Username:.
FoodBox- Online Food Delivery Application. Aug 2022 - Sep 2022.
If you want to take a look at the full code, the repo is github.com/giannifontanot/sl-capstone-foodbox I need to find out why the order