|
|
|
|
## Get Json
|
|
|
|
|
|
|
|
|
|
### Instructions
|
|
|
|
|
|
|
|
|
|
In this exercise, we will focus on building complex async flows with promises.
|
|
|
|
|
|
|
|
|
|
Create a function named `getJSON` with two parameters:
|
|
|
|
|
- `path`: a URL called by your function.
|
|
|
|
|
- `params`: optional query parameters that will be appended to the `path`.
|
|
|
|
|
|
|
|
|
|
`getJSON` must construct a valid url with the `path` and stringified `params`, and use `fetch` to fulfil the request.
|
|
|
|
|
|
|
|
|
|
If the response is not OK, `getJSON` must throw an error using the response _status text_.
|
|
|
|
|
|
|
|
|
|
The response body must then be read and parsed from JSON.
|
|
|
|
|
|
|
|
|
|
The parsed object contains one of those 2 properties:
|
|
|
|
|
- `"data"`: the actual data to return.
|
|
|
|
|
- `"error"`: the error message to throw.
|
|
|
|
|
|
|
|
|
|
### Notions
|
|
|
|
|
|
|
|
|
|
- [Promise.js](https://nan-academy.github.io/js-training/examples/promise.js)
|
|
|
|
|
- [Using fetch](https://devdocs.io/dom/fetch_api/using_fetch)
|
|
|
|
|
- [URL search params](https://devdocs.io/dom/urlsearchparams)
|
|
|
|
|
- [JSON](https://devdocs.io/javascript/global_objects/json)
|
