What is the most efficient way to post data to the most recently added resource/record in a database?

Question

What is the most efficient way to post data to the most recently added resource/record in a database?

I need to update specific data in an existing record within the database using a POST method. Currently, every time I make a POST request, it creates a new record instead of updating the existing one. What is the most straightforward approach to achieve this?

My frontend is built with Angular and I am using Glassfish RESTful server as my backend.

Here is the TypeScript file:

[typescript code here]

I am attempting to post data to the latest/newest added record at the following link:

'http://localhost:8080/aquadine-jee/resources/restaurant'

Backend code snippet:

[Java code snippets here]

angular typescript rest http

Answer 1

Answer №1

One issue you may be encountering is that by using an HTTP POST request to update a record, a new record is being created instead of updating an existing one. It appears that the URL is the same for both creating and updating records, causing this confusion. To differentiate between creation and update operations, consider utilizing the HTTP PUT method instead. Here's how you can modify your code:

this.http.put('http://localhost:8080/aquadine-jee/resources/restaurant', JSON.parse(myJsonString.valueOf()), httpOptions)
  .subscribe(res => {
      console.log('response' + ' ' + res); // log results or log error
    },
    err => {
      console.log('Error occurred');
    });

You may find it beneficial to move your API calls to a Service Class.
Consider learning more about Rest API practices.

Answer 2

One issue you may be encountering is that by using an HTTP POST request to update a record, a new record is being created instead of updating an existing one. It appears that the URL is the same for both creating and updating records, causing this confusion. To differentiate between creation and update operations, consider utilizing the HTTP PUT method instead. Here's how you can modify your code:

this.http.put('http://localhost:8080/aquadine-jee/resources/restaurant', JSON.parse(myJsonString.valueOf()), httpOptions)
  .subscribe(res => {
      console.log('response' + ' ' + res); // log results or log error
    },
    err => {
      console.log('Error occurred');
    });

You may find it beneficial to move your API calls to a Service Class.
Consider learning more about Rest API practices.

What is the most efficient way to post data to the most recently added resource/record in a database?

Answer №1

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