---
title: "Day-Ahead Aggregated Generation (DAG / B1430) stream"
method: GET
path: "/datasets/DAG/stream"
tags: ["BMRS Datasets"]
---

# Day-Ahead Aggregated Generation (DAG / B1430) stream

`GET /datasets/DAG/stream`

This endpoint provides day-ahead aggregated generation data.
            
This endpoint has an optimised JSON payload and is aimed at frequent requests for the data.

## Query parameters

- `publishDateTimeFrom` string, date-time, required
- `publishDateTimeTo` string, date-time, required

## Response `200`

Data retrieved

- InsightsApiModelsResponsesTransparencyDatasetRowsDayAheadAggregatedGenerationDatasetRow[]
  - `dataset` string, nullable
  - `documentId` string, nullable
  - `documentRevisionNumber` integer
  - `publishTime` string, date-time
  - `quantity` number, double
  - `startTime` string, date-time
  - `settlementDate` string, date
  - `settlementPeriod` integer

## Other responses

- `400` — Error with query parameters - see response for details
- `429` — Too many requests
- `500` — Server error - please try again later

---

[API](https://skmtc.net/elexon/apis/bmrs-insights.md) · [All operations](https://skmtc.net/elexon/apis/bmrs-insights/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/elexon/bmrs-insights/versions/d94e9edb295e/schema)