curl -X GET "https://api.fitsociety.io/public/v1/workout/performance/activities/{planId}/{scheduleItemId}/{plannedDate}" \
  -H "Authorization: Bearer <access_token>"

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.fitsociety.io/public/v1/workout/performance/activities/{planId}/{scheduleItemId}/{plannedDate}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.fitsociety.io/public/v1/workout/performance/activities/{planId}/{scheduleItemId}/{plannedDate}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "data": {
    "comparison": {
      "status": "COMPARABLE",
      "reasonCodes": [
        "TWO_COMPLETED_SESSIONS_REQUIRED"
      ],
      "blocks": [
        {
          "blockId": "66f7b8b1e13c8d25f4d3d90a",
          "stepId": "66f7b8b1e13c8d25f4d3d90a",
          "repIndex": 1,
          "metric": "avgHrBpm",
          "previous": 1,
          "current": 1,
          "delta": 1
        }
      ]
    },
    "resolvedTargetsSnapshot": {
      "source": "execution_snapshot",
      "paceUnit": "s/km",
      "sessionType": "easy",
      "controlMode": "pace",
      "blocks": [
        {
          "_id": "66f7b8b1e13c8d25f4d3d90a",
          "repeat": 1,
          "steps": [
            {
              "_id": "66f7b8b1e13c8d25f4d3d90a",
              "kind": "warmup",
              "durationType": "time",
              "durationValue": 1,
              "target": {
                "kind": "paceZone",
                "zone": "E",
                "basis": "lthr",
                "low": 1,
                "high": 1
              },
              "secondaryTarget": {
                "kind": "paceZone",
                "zone": "E",
                "basis": "lthr",
                "low": 1,
                "high": 1
              },
              "targetReasonCode": "string",
              "secondaryTargetReasonCode": "string"
            }
          ]
        }
      ]
    },
    "planId": "66f7b8b1e13c8d25f4d3d90a",
    "scheduleItemId": "66f7b8b1e13c8d25f4d3d90a",
    "plannedDate": "2026-09-08",
    "weekNumber": 1,
    "weekday": 5,
    "isAvailable": true,
    "activityType": "walking",
    "name": "30 Minutes Walk",
    "description": "Example description",
    "planned": {
      "date": "2026-09-08",
      "startTime": "10:45",
      "endTime": "11:45",
      "durationMinutes": 60,
      "distanceMeters": 50
    },
    "result": {
      "workBlocks": [
        {
          "blockId": "66f7b8b1e13c8d25f4d3d90a",
          "stepId": "66f7b8b1e13c8d25f4d3d90a",
          "repIndex": 1,
          "durationSec": 1,
          "distanceM": 1,
          "avgPaceSecPerKm": 1,
          "avgHrBpm": 1
        }
      ],
      "avgHrBpm": 1,
      "missedReason": "sick",
      "conditions": {
        "temperatureC": 1,
        "windNote": "string",
        "elevationGainM": 1,
        "preFatigueNote": "string"
      },
      "niggle": {
        "note": "string"
      },
      "source": "manual",
      "completedOnTarget": true,
      "workBlockEvaluation": {
        "reasonCodes": [
          "SESSION_NOT_COMPLETED"
        ],
        "blocks": [
          {
            "blockId": "66f7b8b1e13c8d25f4d3d90a",
            "stepId": "66f7b8b1e13c8d25f4d3d90a",
            "repIndex": 1,
            "onTarget": true,
            "reasonCode": "string"
          }
        ]
      },
      "resolvedTargetsSnapshot": {
        "source": "execution_snapshot",
        "paceUnit": "s/km",
        "sessionType": "easy",
        "controlMode": "pace",
        "blocks": [
          {
            "_id": "66f7b8b1e13c8d25f4d3d90a",
            "repeat": 1,
            "steps": [
              {
                "_id": "66f7b8b1e13c8d25f4d3d90a",
                "kind": "warmup",
                "durationType": "time",
                "durationValue": 1,
                "target": {
                  "kind": "paceZone",
                  "zone": "E",
                  "basis": "lthr",
                  "low": 1,
                  "high": 1
                },
                "secondaryTarget": {
                  "kind": "paceZone",
                  "zone": "E",
                  "basis": "lthr",
                  "low": 1,
                  "high": 1
                },
                "targetReasonCode": "string",
                "secondaryTargetReasonCode": "string"
              }
            ]
          }
        ]
      },
      "externalWorkoutRef": "string",
      "performanceId": "66f7b8b1e13c8d25f4d3d90a",
      "status": "in_progress",
      "startedAt": "2026-07-14T10:00:00.000Z",
      "completedAt": "2026-07-14T10:00:00.000Z",
      "startTime": "10:45",
      "endTime": "11:45",
      "durationMinutes": 150,
      "distanceMeters": 1200,
      "rpe": 6,
      "notes": "string"
    },
    "timeZone": "Europe/Amsterdam"
  },
  "meta": {
    "requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
    "rateLimit": {
      "limit": 10,
      "remaining": 9,
      "resetSeconds": 1
    }
  }
}

{
  "error": {
    "code": 400,
    "key": "request.invalid",
    "message": "The request is invalid."
  },
  "meta": {
    "requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
    "rateLimit": {
      "limit": 10,
      "remaining": 9,
      "resetSeconds": 1
    }
  }
}

{
  "error": {
    "code": 403,
    "key": "scopes.insufficient",
    "message": "The access token does not include the required scope.",
    "details": {
      "requiredScopes": [
        "required:scope"
      ]
    }
  },
  "meta": {
    "requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
    "rateLimit": {
      "limit": 10,
      "remaining": 9,
      "resetSeconds": 1
    }
  }
}

{
  "error": {
    "code": 404,
    "key": "resource.not_found",
    "message": "The requested Public API resource was not found."
  },
  "meta": {
    "requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
    "rateLimit": {
      "limit": 10,
      "remaining": 9,
      "resetSeconds": 1
    }
  }
}

{
  "error": {
    "code": 500,
    "key": "server.internal_error",
    "message": "An unexpected Public API server error occurred."
  },
  "meta": {
    "requestId": "4f849d7d-f4f1-45cc-b4b7-3984a3d17f83",
    "rateLimit": {
      "limit": 10,
      "remaining": 9,
      "resetSeconds": 1
    }
  }
}