no escaping template for json

[ArtemIsmagilov]

I want to upload a json file, but got an error.
This fixed it with escape="none"

Are there any plans to add json escaping?

Example code

use rinja::Template;

#[derive(Template)]
#[template(path = "a.json")]
struct Footer<'a> {
    year: u16,
    enterprise: &'a str,
}

Example error

1. no escaper defined for extension 'json'. The available extensions are: "", "htm", "html", "j2", "jinja", "jinja2", "md", "none", "rinja", "svg", "txt", "xml", "yml"

[Kijewski]

Could you please add an example what "a.json" looks like? I assume that you want to use expressions {{ }} only inside of strings?

[ArtemIsmagilov]

Hi! Of course!

example a.json

{
  "year": {{year}},
  "enterprise": "{{enterprise}}"
}

[Kijewski]

I think that's a too specialized use case, with too many script-injection hazards. Alas, currently we don't have a good example how to write an escaper. I opened an issue for that: #348.

To make things short: You have to add an empty struct that implements Escaper. Then you must configure the extension "json" to use this escaper.