Verifying domain for Facebook Graph API in self-hosted Sanity studio

hello everyone, i need to verify my domain to use the facebook graph api as the doc says https://www.facebook.com/business/help/321167023127050 . I need to either add a file at the root of my projet to be publicly visible or add a meta tag or add a txt record.I didnt use the sanity ui i have no idea what i can customize other than the schemas and some small stuff.
How can i achieve this ? thank you

Do you want to do that for your website or your self-hosted studio?

i need it for the self hosted studio since i use a custom publishing action button to publish from the sanity studio to a facebook page

What is the URL of your Studio? Is it on *.sanity.studio or on your own domain?

its on sanity.studio

Alright. So a TXT record is not going to be possible, that’s for sure, since you don’t host the studio yourself. Same for the file, same reason.

Your only chance is a meta tag. If it can be added dynamically with JavaScript — which I doubt — then you could inject it yourself, but I’m pretty sure it needs to be there on the server response.

What does your custom action does exactly?

it’s an http post method with a token and a payload

wich use sanity fields to populate the payload

And this request goes to Facebook servers?

it goes to this url https://graph.facebook.com/v14.0/

I don’t think you’ll be able to verify your Studio since it’s not your domain. I guess you could self-host the Studio wherever you want, but that’s a pain. Is there a way around it? Can’t you pass a specific header to your request or something?

it says i need to set ownership_permissions: { can_customize_link_posts: true,
},

but it doesnt work and as i went further for informations i saw that the new requirement isa veryfied domain

Another option is to do a POST request to an API route on your own site (which you host and can verify), and then do the Facebook request from there.

sure

but i lose the the ability to use sanity to use the action button

How so?

oh yeah

i misunderstood

yeah i think i can do that

Alright. 😊

Do you use Next.js or something for your site?

I use nextjs

Pretty convenient then! Make your action ping a specific API route on your Next.js site, and have that server-side API handler ping Facebook.

Yeah !

I guess the request will take longer but It should work

If it’s done only on publication, it should be marginal. It’s also not a critical request as far as I understand.

Ok I'll try this implementation and get back to you

Thank you very much anyway 😃

Cheers! ✨