Updated to reflect that Docs on Facebook/Instagram now show a different url scheme vs instagram, i.e FB does no longer take source_application queryParam, because it is included in the params as its own AppID key. So the AppID key should only be added if its FB, and the source_application param should only be added if it's Instagram.
Additionally, baked in functionality so that you don't have to include a StickerImage, you can just include a background Image and it will now work, showing the image the full screen of Insta and/or FB.
Updated to reflect that Docs on Facebook/Instagram now show a different url scheme vs instagram, i.e FB does no longer take source_application queryParam, because it is included in the params as its own AppID key. So the AppID key should only be added if its FB, and the source_application param should only be added if it's Instagram.
Additionally, baked in functionality so that you don't have to include a StickerImage, you can just include a background Image and it will now work, showing the image the full screen of Insta and/or FB.
iOS: FB Docs: https://developers.facebook.com/docs/sharing/sharing-to-stories/ios-developers Insta Docs: https://developers.facebook.com/docs/instagram/sharing-to-stories
Android: FB Docs: https://developers.facebook.com/docs/sharing/sharing-to-stories/android-developers Insta Docs: https://developers.facebook.com/docs/instagram/sharing-to-stories