Client needs to be able to post to Kitsu at a user we control

[Reinachan]

Overview Issue: KitsuCommunity/kitsuawards-server#4

Once the client recieves the unique message by the server, it has to post this to Kitsu directed at a user we have control over so it doesn't show up in the global feed. Once the post is posted, it needs to send a link to said post back to the server.

API Specification

This is a psuedocode example

interface State {
  userToken: string;
  userId: string;
}

interface Input {
  message: string,
  targetId: string,
}

interface Output {
  userId: string;
  postId: string;
}

Kitsu API example

https://kitsu.io/api/edge/posts

{
  "data": {
    "attributes": {
      "content": "post content",
      "embedUrl": null,
      "spoiler": false
    },
    "relationships": {
      "targetUser": {
        "data": {
          "type": "users",
          "id": "395632"
        }
      },
      "user": {
        "data": {
          "type": "users",
          "id": "171606"
        }
      },
      "uploads": {
        "data": []
      }
    },
    "type": "posts"
  }
}

Important to note is the relationships.targetUser

Non-error response

{
  "data": {
    "id": "9763798",
    "type": "posts",
    "links": {
      "self": "https://kitsu.io/api/edge/posts/9763798"
    },
    "attributes": {
      "createdAt": "2023-06-07T17:30:35.216Z",
      "updatedAt": "2023-06-07T17:30:35.216Z",
      "content": "test",
      "contentFormatted": "<p>test</p>\n",
      "commentsCount": 0,
      "postLikesCount": 0,
      "spoiler": false,
      "nsfw": false,
      "blocked": false,
      "deletedAt": null,
      "topLevelCommentsCount": 0,
      "editedAt": null,
      "targetInterest": null,
      "embed": null,
      "embedUrl": null,
      "lockedAt": null,
      "lockedReason": null
    },
    "relationships": {
      "user": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/user",
          "related": "https://kitsu.io/api/edge/posts/9763798/user"
        }
      },
      "targetUser": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/target-user",
          "related": "https://kitsu.io/api/edge/posts/9763798/target-user"
        }
      },
      "targetGroup": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/target-group",
          "related": "https://kitsu.io/api/edge/posts/9763798/target-group"
        }
      },
      "media": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/media",
          "related": "https://kitsu.io/api/edge/posts/9763798/media"
        }
      },
      "spoiledUnit": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/spoiled-unit",
          "related": "https://kitsu.io/api/edge/posts/9763798/spoiled-unit"
        }
      },
      "ama": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/ama",
          "related": "https://kitsu.io/api/edge/posts/9763798/ama"
        }
      },
      "lockedBy": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/locked-by",
          "related": "https://kitsu.io/api/edge/posts/9763798/locked-by"
        }
      },
      "postLikes": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/post-likes",
          "related": "https://kitsu.io/api/edge/posts/9763798/post-likes"
        }
      },
      "comments": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/comments",
          "related": "https://kitsu.io/api/edge/posts/9763798/comments"
        }
      },
      "uploads": {
        "links": {
          "self": "https://kitsu.io/api/edge/posts/9763798/relationships/uploads",
          "related": "https://kitsu.io/api/edge/posts/9763798/uploads"
        }
      }
    }
  }
}