How to Effectively Send JSON Data Using Fetch's POST Method?

Making POST Requests with Fetch: Sending JSON Data

In the world of web development, it's often necessary to transmit data to a server using the POST method. Often, this data takes the form of JSON objects. To achieve this using the Fetch API, we will delve into the steps required.

As mentioned in the given prompt, the key is attaching a stringified version of the JSON object to the request's body. However, the provided code example seems to encounter a problem where the JSON data fails to be sent.

To resolve this issue, we can utilize ES2017's async/await syntax, which provides a more concise and readable approach.

Here's an updated code snippet that demonstrates the process:

(async () => {
  const rawResponse = await fetch('https://httpbin.org/post', {
    method: 'POST',
    headers: {
      'Accept': 'application/json',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({a: 1, b: 'Textual content'})
  });
  const content = await rawResponse.json();

  console.log(content);
})();

In this code, the async/await syntax is used to make the function asynchronous. The await keyword pauses the execution of the function until the rawResponse is received from the API. Once the response is available, the json() method is used to parse the JSON content.

By following this approach, you can effectively POST JSON data using the Fetch API. Remember to adjust the URL and data to match your specific requirements.

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