How to format this metadata json file with double quotes?

[Enrique-Venegas-A]

I'm trying to make a custom format json with double quotes for every tag but I can't seem to find a way to format it the way I need it, I have this settings in my postprocessor as of now:

"postprocessors": [ { "name": "metadata", "mode": "custom", "filename": "info.json", "extension-format": "json", "content-format": "{{ \n\n Id: {gallery_id}, \n Tags: {tags} \n\n }}" }

This is the result:

{
Id: 123456,
Tags: ['tag1', 'tag2', 'tag3']
}

but I need this:

{
"Id": "123456",
"Tags": "['tag1', 'tag2', 'tag3']"
}

I've tried multiple ways but all of them end in the app telling me that I'm missing a delimiter or a similar error, also tried the other modes described here https://github.com/mikf/gallery-dl/blob/master/docs/configuration.rst#metadatamode but couldn't figure out how to do it.

I just discovered this project a couple of days ago so I'm probably missing something but already spent a couple of hours on this so I decided to ask.

Thanks for your help!

[mikf]

To use double quotes inside a double-quoted string, you have to escape the quote with a backslash, for example "… \"Tags\": \"{tags}\" …"

Your post processor settings would be

"postprocessors": [
    {
        "name": "metadata",
        "mode": "custom",
        "filename": "info.json",
        "content-format": "{{ \n\n \"Id\": \"{gallery_id}\", \n \"Tags\": \"{tags}\" \n\n }}"
    }
]

There is also a j conversion, that produces a JSON parseable form of a value (see docs/formatting.md#conversions)
For example {tags!j} would become ["tag1", "tag2", "tag3"]

And there is also the option to use a template file, where you write the entire format string to a different file and don't have to worry about escaping anything except { and } (see docs/formatting.md#special)

but I need this:
"Tags": "['tag1', 'tag2', 'tag3']"

Are you sure? Shouldn't it be "Tags": ["tag1", "tag2", "tag3"] to be a valid JSON array?

[Enrique-Venegas-A]

I'll try with your format recommendations, they seem exactly what I need for this.

Are you sure? Shouldn't it be "Tags": ["tag1", "tag2", "tag3"] to be a valid JSON array?

You are completely right, I just left that part exactly as it was returned by my current execution and didn't notice the single quote problem.
I'll test the {tags:j} format and see the result of that too.

Thanks for your help!

[mikf]

I'll test the {tags:j} format and see the result of that too.

Sorry, I made a mistake. It needs to be {tags!j}, not {tags:j}, for a conversion.

[Enrique-Venegas-A]

I'll test the {tags:j} format and see the result of that too.

Sorry, I made a mistake. It needs to be {tags!j}, not {tags:j}, for a conversion.

I was able to format the whole json the way I needed it including the tags, you were great help, thanks a lot for your time and help!

[mikf]

Another thing: You might want to add "event": "post" or "init" to the post processor options. Otherwise it triggers after every file download and needlessly overwrites the already existing info.json with the same content.

See https://github.com/mikf/gallery-dl/blob/master/docs/configuration.rst#metadataevent