ソーシャルとフィードネイティブ

{
  "format_id": {
    "agent_url": "https://ads.socialplatform.example",
    "id": "promoted_post"
  },
  "name": "Promoted post",
  "type": "native",
  "description": "Sponsored content that appears in the feed alongside organic posts. Renders with platform chrome (user avatar, engagement buttons, community badge).",
  "assets": [
    {
      "item_type": "individual",
      "asset_id": "headline",
      "asset_type": "text",
      "required": true,
      "requirements": { "max_length": 300 }
    },
    {
      "item_type": "individual",
      "asset_id": "body",
      "asset_type": "text",
      "required": false,
      "requirements": { "max_length": 1000 }
    },
    {
      "item_type": "individual",
      "asset_id": "image",
      "asset_type": "image",
      "required": false,
      "requirements": { "max_width": 1200, "max_height": 628, "accepted_types": ["image/jpeg", "image/png"] }
    },
    {
      "item_type": "individual",
      "asset_id": "click_url",
      "asset_type": "url",
      "required": true,
      "requirements": {}
    }
  ]
}

{
  "request_type": "single",
  "creative_manifest": {
    "format_id": {
      "agent_url": "https://ads.socialplatform.example",
      "id": "promoted_post"
    },
    "assets": {
      "headline": { "content": "Introducing our new trail running collection" },
      "body": { "content": "Built for the mountains. Tested on every terrain." },
      "image": { "url": "https://cdn.acme-example.com/trail-hero.jpg", "width": 1200, "height": 628 },
      "click_url": { "url": "https://acme-example.com/trail-running" }
    }
  },
  "inputs": [
    { "name": "Running community", "context_description": "Appears in r/trailrunning feed between user posts" },
    { "name": "General feed", "context_description": "Appears in home feed between mixed content" }
  ]
}

{
  "format_id": {
    "agent_url": "https://ads.socialplatform.example",
    "id": "promoted_carousel"
  },
  "name": "Promoted carousel",
  "type": "native",
  "description": "Multi-card swipeable promoted content with 2-10 cards.",
  "assets": [
    {
      "item_type": "group",
      "asset_id": "cards",
      "min_items": 2,
      "max_items": 10,
      "assets": [
        {
          "item_type": "individual",
          "asset_id": "card_image",
          "asset_type": "image",
          "required": true,
          "requirements": { "min_width": 600, "min_height": 600, "aspect_ratio": "1:1" }
        },
        {
          "item_type": "individual",
          "asset_id": "card_headline",
          "asset_type": "text",
          "required": true,
          "requirements": { "max_length": 100 }
        },
        {
          "item_type": "individual",
          "asset_id": "card_click_url",
          "asset_type": "url",
          "required": true
        }
      ]
    },
    {
      "item_type": "individual",
      "asset_id": "headline",
      "asset_type": "text",
      "required": true,
      "requirements": { "max_length": 300 }
    }
  ]
}