curl --request GET \
  --url https://api.voucherify.io/v2/loyalties/earning-rules/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'X-App-Id: <api-key>' \
  --header 'X-App-Token: <api-key>'

{
  "id": "<string>",
  "name": "<string>",
  "earnings": [
    {
      "name": "<string>",
      "rules": {
        "logic": "<string>"
      },
      "effects": [
        {
          "points": {
            "value": 123,
            "card_definition_id": "<string>",
            "points_expiration": {
              "rolling_expiration": {
                "period": {
                  "value": 2
                },
                "rounding": {
                  "value": 6
                }
              },
              "calendar_expiration": {
                "expiration_dates": [
                  {
                    "day": 16,
                    "month": 6
                  }
                ]
              },
              "sliding_expiration": {
                "earning_activity": true,
                "spending_activity": true,
                "custom_activity": true,
                "custom_activity_types": [
                  "<string>"
                ],
                "period": {
                  "value": 2
                }
              }
            }
          },
          "points_proportional": {
            "card_definition_id": "<string>",
            "order": {
              "amount": {
                "every": 123,
                "value": 123
              },
              "total_amount": {
                "every": 123,
                "value": 123
              },
              "metadata": {
                "every": 123,
                "value": 123,
                "property": "<string>"
              }
            },
            "customer": {
              "metadata": {
                "every": 123,
                "value": 123,
                "property": "<string>"
              }
            },
            "order_items": {
              "amount": {
                "every": 123,
                "value": 123,
                "applicable_to": [
                  {
                    "product": {
                      "id": "<string>"
                    },
                    "sku": {
                      "id": "<string>"
                    },
                    "products_collection": {
                      "id": "<string>"
                    }
                  }
                ]
              },
              "subtotal_amount": {
                "every": 123,
                "value": 123,
                "applicable_to": [
                  {
                    "product": {
                      "id": "<string>"
                    },
                    "sku": {
                      "id": "<string>"
                    },
                    "products_collection": {
                      "id": "<string>"
                    }
                  }
                ]
              },
              "quantity": {
                "every": 123,
                "value": 123,
                "applicable_to": [
                  {
                    "product": {
                      "id": "<string>"
                    },
                    "sku": {
                      "id": "<string>"
                    },
                    "products_collection": {
                      "id": "<string>"
                    }
                  }
                ]
              }
            },
            "points_expiration": {
              "rolling_expiration": {
                "period": {
                  "value": 2
                },
                "rounding": {
                  "value": 6
                }
              },
              "calendar_expiration": {
                "expiration_dates": [
                  {
                    "day": 16,
                    "month": 6
                  }
                ]
              },
              "sliding_expiration": {
                "earning_activity": true,
                "spending_activity": true,
                "custom_activity": true,
                "custom_activity_types": [
                  "<string>"
                ],
                "period": {
                  "value": 2
                }
              }
            }
          },
          "incentive": {
            "id": "<string>"
          }
        }
      ],
      "tier_rules": {}
    }
  ],
  "trigger": {
    "custom_event": {
      "schema_id": "<string>"
    },
    "segment": {
      "id": "<string>"
    }
  },
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "object": "<string>",
  "error": {
    "message": "<string>"
  },
  "validity_hours": {
    "daily": [
      {
        "days_of_week": [
          123
        ],
        "start_time": "<string>",
        "end_time": "<string>"
      }
    ]
  },
  "start_date": "2023-11-07T05:31:56Z",
  "end_date": "2023-11-07T05:31:56Z",
  "trigger_limits": {
    "cooldown": {
      "fixed_cooldown": {
        "period": {
          "value": 123
        }
      }
    },
    "frequency": {
      "limits": [
        {
          "period": {
            "current_period": {}
          },
          "triggers": {
            "max": 123
          }
        }
      ]
    }
  },
  "updated_at": "2023-11-07T05:31:56Z"
}