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1. Embed this notice
   @reiver ⊼ (Charles) :batman: (reiver@mastodon.social)'s status on Monday, 31-Mar-2025 20:18:06 JST @reiver ⊼ (Charles) :batman:

   Currently, the way I am determining if content is valid ActivityPub / ActivityStreams content is —

   №1:

   Determining if it is valid JSON.

   №2:

   Checking if it has a "type" field.

   And that is it.

   #ActivityPub #ActivityStreams #DeSo #FediDev #FediDevs #Fediverse #JSONLD

   • Embed this notice
     silverpill (silverpill@mitra.social)'s status on Monday, 31-Mar-2025 20:18:05 JST silverpill

     in reply to

     @reiver It should have id field, because id is used for authentication. type is less important.

     The document should also have a correct Content-Type header.

   • Embed this notice
     silverpill (silverpill@mitra.social)'s status on Monday, 31-Mar-2025 20:29:26 JST silverpill

     in reply to

     @reiver Right, objects POSTed to outbox don't need an id. They are not real objects yet

   • Embed this notice
     @reiver ⊼ (Charles) :batman: (reiver@mastodon.social)'s status on Monday, 31-Mar-2025 20:29:27 JST @reiver ⊼ (Charles) :batman:

     in reply to

     • silverpill

     @silverpill

     Is something that is using the client-server API that HTTP POSTs to an account's outbox supposed to have an "id" field?

     (I thought it wasn't. But perhaps I am mistaken.)

   • Embed this notice
     silverpill (silverpill@mitra.social)'s status on Monday, 31-Mar-2025 20:36:16 JST silverpill

     in reply to

     • Dominik

     @chrastecky It can be omitted if object is embedded, but I think @reiver is talking about whole documents.

   • Embed this notice
     Dominik (chrastecky@phpc.social)'s status on Monday, 31-Mar-2025 20:36:18 JST Dominik

     in reply to

     • silverpill

     @reiver @silverpill ID field is not necessary, especially for embedded resources. Like Note with an Image, the image doesn't need to have an ID.

   • Embed this notice
     @reiver ⊼ (Charles) :batman: (reiver@mastodon.social)'s status on Monday, 31-Mar-2025 21:06:18 JST @reiver ⊼ (Charles) :batman:

     in reply to

     • silverpill
     • Dominik

     @silverpill @chrastecky

     I am trying to do some validation on content HTTP POSTed to an accounts outbox.

     And, if there is a problem, return an appropriate error message.

   • Embed this notice
     silverpill (silverpill@mitra.social)'s status on Monday, 31-Mar-2025 21:06:18 JST silverpill

     in reply to

     • Dominik

     @reiver @chrastecky Your requirements make sense then. I would additionally check whether POSTed activity/object has any audience fields (to, cc and others).