Optimal method for linking jQuery ajax requests to transfer data

Question

Optimal method for linking jQuery ajax requests to transfer data

Handling several asynchronous ajax calls in a specific order with information passing between them can be quite challenging. The current approach, even with just three API calls, can be cumbersome. Trying to manage five API calls makes it nearly impossible to organize the error workflow or adjust functions effectively due to limited screen space. Is there a more efficient way to achieve the desired outcome?

/*
 * API Call to get user
 */
$.ajax({
    type: 'POST',
    url: `robin.hood/get_user`,
    data: JSON.stringify({"name":"Joe Dirt"}),
    headers: {Authorization: 'Bearer ' + token},
    datatype: 'json',
    contentType: 'application/json; charset=utf-8',
    success: function (data, text_status, jq_xhr) {
        /*
         * Assume one user is returned only
         */
        let user_id = data;

          // Additional nested AJAX calls and operations...
                    
});

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Answer 1

Answer №1

When using $.ajax, it returns a Thenable object. This allows you to use the await keyword inside an async function, making it easier to handle and manage compared to using nested callbacks:

async function run() {
  try {
    const user = await $.ajax({
      type: 'POST',
      url: `robin.hood/get_user`,
      data: JSON.stringify({
        "name": "Joe Dirt"
      }),
      headers: {
        Authorization: 'Bearer ' + token
      },
      datatype: 'json',
      contentType: 'application/json; charset=utf-8',
    })

    const balance = await $.ajax({
      // ...
    })

    const data = await $.ajax({
      // ...
    })

    /* STONKS!!! */
  } catch (e) {
    /* NO STONKS */
  }
}
run()

Answer 2

When using $.ajax, it returns a Thenable object. This allows you to use the await keyword inside an async function, making it easier to handle and manage compared to using nested callbacks:

async function run() {
  try {
    const user = await $.ajax({
      type: 'POST',
      url: `robin.hood/get_user`,
      data: JSON.stringify({
        "name": "Joe Dirt"
      }),
      headers: {
        Authorization: 'Bearer ' + token
      },
      datatype: 'json',
      contentType: 'application/json; charset=utf-8',
    })

    const balance = await $.ajax({
      // ...
    })

    const data = await $.ajax({
      // ...
    })

    /* STONKS!!! */
  } catch (e) {
    /* NO STONKS */
  }
}
run()

Optimal method for linking jQuery ajax requests to transfer data

Answer №1

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