{
  "name": "Synapse",
  "type": "object",
  "properties": {
    "id": {
      "$ref": "_id.json"
    },
    "desc": {
      "type": "string"
    },
    "category": {
      "type": "string",
      "pattern": "(from-to|both)"
    },
    "permission": {
      "$ref": "_permission.json"
    },
    "created_at": {
      "$ref": "_datetimestamp.json"
    },
    "updated_at": {
      "$ref": "_datetimestamp.json"
    },
    "topic1_id": {
      "$ref": "_id.json"
    },
    "topic1": {
      "$ref": "_topic.json"
    },
    "topic2_id": {
      "$ref": "_id.json"
    },
    "topic2": {
      "$ref": "_topic.json"
    },
    "user_id": {
      "$ref": "_id.json"
    },
    "user": {
      "$ref": "_user.json"
    }
  },
  "required": [
    "id",
    "desc",
    "category",
    "permission",
    "created_at",
    "updated_at"
  ],
  "allOf": [
    {
      "oneOf": [
        { "required": [ "topic1_id" ] },
        { "required": [ "topic1" ] }
      ]
    },
    {
      "oneOf": [
        { "required": [ "topic2_id" ] },
        { "required": [ "topic2" ] }
      ]
    },
    {
      "oneOf": [
        { "required": [ "user_id" ] },
        { "required": [ "user" ] }
      ]
    }
  ]
}