### I. Why need to do this?
Shift JIS (SJIS) and UTF-8 are both character encoding systems used to represent text in computers. Shift JIS is primarily used for Japanese characters, while UTF-8 is a more universal encoding that covers a wide range of characters from various languages.
When you open a Shift JIS encoded file on a non-Japanese device, the characters may appear garbled or incorrectly displayed. This is because the non-Japanese device does not understand the Shift JIS encoding.
So, that's why I'm sharing this, but i supposed we could do this with other encoding types.
### II. Implementation
On backend, just make sure to set your character set to `Shift_JIS`.
If there are some weird character appears, we might need to tweek the string a bit, since in `Shift_JIS`, each character is encoded using 2 bytes (16 bits), while in `UTF-8`, it takes 1-4 bytes depending on the characters.
Here's the [ASCII](https://lwp.interglacial.com/appf_01.htm) table incase you need it.
On frontend, add media type when you create the download link.
```javascript!
const downloadCSV = () => {
const apiUrl = "/download"
const res = await api.get(apiUrl, {
responseType: 'blob',
});
const a = document.createElement('a');
const url = window.URL.createObjectURL(new Blob([res.data]));
a.href = url;
a.target = '_blank';
a.type = 'text/csv;charset=Shift_JIS';
a.download = "fileName";
document.body.appendChild(a);
a.click();
}
```
That's it! It's not much but i hope it helpful somehow.
Thank you for reading.
:woman-bowing: