WordCamp Attendee JSON

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Imported from https://meta.trac.wordpress.org/ticket/2940 Created by @codexdemon:

Is there way to get JSON of WordCamp Attendee, was working on attendee page in android so i could not able to figure out WP Json for Attendee of Camptix

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Comment by @coreymckrill:

• Keywords set to Needs Patch Good First Bug
• Status set to accepted
• Owner set to @coreymckrill

This would require creating a new plugin or enhancing the core CampTix plugin to add a new REST API endpoint for the tix_attendee post type. The controller for the endpoint would need to follow similar logic to the [camptix_attendees] shortcode to ensure that attendees marked as "private" do not get included in the response. There would also probably need to be a way within the UI to mark which questions/answers get included as fields in the REST response. And it would need to be possible to filter by ticket type.

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Comment by slackbot:

This ticket was mentioned in Slack in #meta-wordcamp by coreymckrill. View the logs.

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Comment by @coreymckrill:

• Status set to assigned
• Owner cleared

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Comment by @igmoweb:

Here's a first patch for the attendees endpoint. The patch exposes wp-json/wp/v2/tix_attendees endpoint and it can use the same parameters than the posts endpoint with some changes:

• The endpoint includes a few fields like first name, last name and a list of avatars URLs.
• It doesn't allow the per_page parameter (same than the [camptix] shortcode)
• It won't display attendees marked as private

Not done yet:

• Create a new tab in Camptix settings to select questions to display in the endpoint.
• Add those fields in the response.

Still, without the questions, I think the endpoint is pretty usable already.

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Comment by @igmoweb:

• 2940.1.diff added

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Comment by @iandunn:

I haven't had a chance to look closely at the patch, but it looks to be going in the right direction at first glance.

We might want to use wcorg_register_meta_only_on_endpoint() from helper-functions.php, to avoid the privacy issues explained in that function's docblock. I can't think of a use case where exposing first/last names would be a big deal, but there could be one that I haven't thought of yet.

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Comment by @igmoweb:

@iandunn

I'm uploading a new patch. I had to add 'custom-fields' to support array when the post type is registered. I'm not sure if there's any security concern about it but I had no other way if I wanted to return the meta array in the response.

The questions are still missing but I don't really know if adding a new tab in Camptix settings would worth it as I guess no WC organizer will care about the REST API. I think the Twitter username and site URL would be more interesting to add. I see that there are a few actions hooked into the attendees shortcode like camptix_question_field_twitter. I'm thinking if it would be a good idea to check if has_action( 'camptix_question_field_twitter' ) or similar and then display that field in the response or not. I can't think right now on another way to decide if the field should appear or not.

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Comment by @igmoweb:

• 2940.2.diff added

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Comment by slackbot:

This ticket was mentioned in Slack in #meta-wordcamp by ryelle. View the logs.

[timiwahalahti]

Given that we've seen a lot of WordCamp attendee pages being scraped and their emails being digged based on that from the web, I'm a bit against on making that any easier by opening the attendee data even the slightest with a format that is even more easily scrapable.