--- title: Query aggregated long tasks description: Datadog, the leading service for cloud-scale monitoring. breadcrumbs: Docs > API Reference > RUM Insights --- # Query aggregated long tasks{% #query-aggregated-long-tasks %} Copy pageCopied {% tab title="v2" %} **Note**: This endpoint is in preview and is subject to change. If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/). | Datadog site | API endpoint | | ----------------- | --------------------------------------------------------------------------------- | | ap1.datadoghq.com | POST https://api.ap1.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks | | ap2.datadoghq.com | POST https://api.ap2.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks | | app.datadoghq.eu | POST https://api.datadoghq.eu/api/v2/rum/query/insight/aggregated_long_tasks | | app.ddog-gov.com | POST https://api.ddog-gov.com/api/v2/rum/query/insight/aggregated_long_tasks | | us2.ddog-gov.com | POST https://api.us2.ddog-gov.com/api/v2/rum/query/insight/aggregated_long_tasks | | app.datadoghq.com | POST https://api.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks | | us3.datadoghq.com | POST https://api.us3.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks | | us5.datadoghq.com | POST https://api.us5.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks | ### Overview Get aggregated long task data for a RUM view, grouped by invoker type and sampled across multiple view instances. This endpoint requires the `rum_apps_read` permission. ### Request #### Body Data (required) {% tab title="Model" %} | Parent field | Field | Type | Description | | ------------ | -------------------------------- | ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | data [*required*] | object | Data envelope for an aggregated long tasks request. | | data | attributes [*required*] | object | Attributes for an aggregated long tasks query. | | attributes | application_id [*required*] | string | The RUM application ID to analyze. | | attributes | criteria | object | Performance criteria to filter view instances by a metric threshold. | | criteria | max | double | Maximum threshold in seconds (inclusive). | | criteria | metric [*required*] | enum | Performance metric used to filter view instances by threshold. Allowed enum values: `loading_time,largest_contentful_paint,first_contentful_paint,interaction_to_next_paint` | | criteria | min | double | Minimum threshold in seconds (inclusive). | | attributes | filter | string | RUM query string to filter events (for example, @session.type:user @geo.country:US). | | attributes | from [*required*] | int64 | Start of the time range as a Unix timestamp in seconds. | | attributes | sample_size [*required*] | int32 | Number of view instances to sample, between 1 and 500. | | attributes | to [*required*] | int64 | End of the time range as a Unix timestamp in seconds. | | attributes | view_name [*required*] | string | The RUM view name to analyze (for example, /account/login). | | data | type [*required*] | enum | The JSON:API type for aggregated long tasks requests. Allowed enum values: `aggregated_long_tasks` | {% /tab %} {% tab title="Example" %} ```json { "data": { "attributes": { "application_id": "ccbc53b1-74f2-496b-bdd7-9a8fa7b7376b", "criteria": { "max": 5, "metric": "largest_contentful_paint", "min": 2.5 }, "filter": "@session.type:user", "from": 1762437564, "sample_size": 20, "to": 1762523964, "view_name": "/account/login(/:type)" }, "type": "aggregated_long_tasks" } } ``` {% /tab %} ### Response {% tab title="201" %} Successful response {% tab title="Model" %} Response body for the aggregated long tasks endpoint. | Parent field | Field | Type | Description | | ----------------------------- | -------------------------------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | data [*required*] | object | Data envelope for an aggregated long tasks response. | | data | attributes [*required*] | object | Attributes of an aggregated long tasks response. | | attributes | application_id [*required*] | string | The RUM application ID that was analyzed. | | attributes | criteria | object | Performance criteria to filter view instances by a metric threshold. | | criteria | max | double | Maximum threshold in seconds (inclusive). | | criteria | metric [*required*] | enum | Performance metric used to filter view instances by threshold. Allowed enum values: `loading_time,largest_contentful_paint,first_contentful_paint,interaction_to_next_paint` | | criteria | min | double | Minimum threshold in seconds (inclusive). | | attributes | from [*required*] | int64 | Start of the analyzed time range as a Unix timestamp in seconds. | | attributes | long_tasks_by_invoker_type [*required*] | [object] | Long task statistics grouped by invoker type, sorted by impact score descending. | | long_tasks_by_invoker_type | criteria_view_occurrences | int32 | Number of sampled views where this invoker type had long tasks contributing to the criteria metric. | | long_tasks_by_invoker_type | impact_score | double | Rank-product impact score combining view frequency and blocking time severity. | | long_tasks_by_invoker_type | invoker_type [*required*] | string | Category of the long task invoker (for example, resolve-promise, user-callback). | | long_tasks_by_invoker_type | stats_per_view [*required*] | object | Statistical distributions of long task metrics computed per view across sampled views. | | stats_per_view | fcp_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | fcp_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | fcp_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | fcp_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | fcp_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | fcp_count | average [*required*] | double | Average value across sampled views. | | fcp_count | max [*required*] | double | Maximum value across sampled views. | | fcp_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | inp_overlap_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | inp_overlap_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | inp_overlap_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | inp_overlap_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | inp_overlap_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | inp_overlap_count | average [*required*] | double | Average value across sampled views. | | inp_overlap_count | max [*required*] | double | Maximum value across sampled views. | | inp_overlap_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | lcp_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | lcp_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | lcp_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | lcp_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | lcp_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | lcp_count | average [*required*] | double | Average value across sampled views. | | lcp_count | max [*required*] | double | Maximum value across sampled views. | | lcp_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | loading_time_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | loading_time_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | loading_time_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | loading_time_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | loading_time_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | loading_time_count | average [*required*] | double | Average value across sampled views. | | loading_time_count | max [*required*] | double | Maximum value across sampled views. | | loading_time_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | total_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | total_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | total_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | total_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | total_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | total_count | average [*required*] | double | Average value across sampled views. | | total_count | max [*required*] | double | Maximum value across sampled views. | | total_count | min [*required*] | double | Minimum value across sampled views. | | long_tasks_by_invoker_type | top_invokers [*required*] | [object] | Top invokers within this invoker type, sorted by impact score descending. | | top_invokers | criteria_view_occurrences | int32 | Number of sampled views where this invoker had long tasks contributing to the criteria metric. | | top_invokers | file [*required*] | string | Cleaned source file path for the invoker script. | | top_invokers | impact_score | double | Rank-product impact score combining view frequency and blocking time severity. | | top_invokers | invoker [*required*] | string | Name of the invoker function or script. | | top_invokers | stats_per_view [*required*] | object | Statistical distributions of long task metrics computed per view across sampled views. | | stats_per_view | fcp_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | fcp_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | fcp_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | fcp_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | fcp_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | fcp_count | average [*required*] | double | Average value across sampled views. | | fcp_count | max [*required*] | double | Maximum value across sampled views. | | fcp_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | inp_overlap_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | inp_overlap_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | inp_overlap_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | inp_overlap_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | inp_overlap_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | inp_overlap_count | average [*required*] | double | Average value across sampled views. | | inp_overlap_count | max [*required*] | double | Maximum value across sampled views. | | inp_overlap_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | lcp_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | lcp_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | lcp_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | lcp_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | lcp_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | lcp_count | average [*required*] | double | Average value across sampled views. | | lcp_count | max [*required*] | double | Maximum value across sampled views. | | lcp_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | loading_time_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | loading_time_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | loading_time_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | loading_time_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | loading_time_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | loading_time_count | average [*required*] | double | Average value across sampled views. | | loading_time_count | max [*required*] | double | Maximum value across sampled views. | | loading_time_count | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | total_blocking_time_ms | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | total_blocking_time_ms | average [*required*] | double | Average value across sampled views. | | total_blocking_time_ms | max [*required*] | double | Maximum value across sampled views. | | total_blocking_time_ms | min [*required*] | double | Minimum value across sampled views. | | stats_per_view | total_count | object | Statistical distribution (average, min, max) of a long task metric across sampled views. | | total_count | average [*required*] | double | Average value across sampled views. | | total_count | max [*required*] | double | Maximum value across sampled views. | | total_count | min [*required*] | double | Minimum value across sampled views. | | top_invokers | view_occurrences [*required*] | int32 | Number of sampled views where this invoker had any long tasks. | | long_tasks_by_invoker_type | view_occurrences [*required*] | int32 | Number of sampled views where this invoker type had any long tasks. | | attributes | sampled_view_ids [*required*] | [string] | List of RUM view IDs sampled for this aggregation, capped at 50. | | attributes | to [*required*] | int64 | End of the analyzed time range as a Unix timestamp in seconds. | | attributes | view_count [*required*] | int32 | Number of view instances included in the analysis. | | attributes | view_name [*required*] | string | The RUM view name that was analyzed. | | data | id [*required*] | string | Hash-based unique identifier for this aggregation. | | data | type [*required*] | enum | The JSON:API type for aggregated long tasks requests. Allowed enum values: `aggregated_long_tasks` | {% /tab %} {% tab title="Example" %} ```json { "data": { "attributes": { "application_id": "ccbc53b1-74f2-496b-bdd7-9a8fa7b7376b", "criteria": { "max": 5, "metric": "largest_contentful_paint", "min": 2.5 }, "from": 1762437564, "long_tasks_by_invoker_type": [ { "criteria_view_occurrences": 40, "impact_score": 0.4, "invoker_type": "resolve-promise", "stats_per_view": { "fcp_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "fcp_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "inp_overlap_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "inp_overlap_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "lcp_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "lcp_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "loading_time_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "loading_time_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "total_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "total_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 } }, "top_invokers": [ { "criteria_view_occurrences": 40, "file": "src/pages/Gallery.tsx", "impact_score": 0.67, "invoker": "Response.json.then", "stats_per_view": { "fcp_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "fcp_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "inp_overlap_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "inp_overlap_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "lcp_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "lcp_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "loading_time_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "loading_time_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "total_blocking_time_ms": { "average": 3504.1, "max": 3517.8, "min": 3500.1 }, "total_count": { "average": 3504.1, "max": 3517.8, "min": 3500.1 } }, "view_occurrences": 68 } ], "view_occurrences": 68 } ], "sampled_view_ids": [ "6fbf69b6-9455-436a-b894-a6bf64126d40" ], "to": 1762523964, "view_count": 50, "view_name": "/account/login(/:type)" }, "id": "2f0b3455", "type": "aggregated_long_tasks" } } ``` {% /tab %} {% /tab %} {% tab title="400" %} Bad Request {% tab title="Model" %} API error response. | Parent field | Field | Type | Description | | ------------ | ------------------------ | -------- | ------------------------------------------------------------------------------- | | | errors [*required*] | [object] | A list of errors. | | errors | detail | string | A human-readable explanation specific to this occurrence of the error. | | errors | meta | object | Non-standard meta-information about the error | | errors | source | object | References to the source of the error. | | source | header | string | A string indicating the name of a single request header which caused the error. | | source | parameter | string | A string indicating which URI query parameter caused the error. | | source | pointer | string | A JSON pointer to the value in the request document that caused the error. | | errors | status | string | Status code of the response. | | errors | title | string | Short human-readable summary of the error. | {% /tab %} {% tab title="Example" %} ```json { "errors": [ { "detail": "Missing required attribute in body", "meta": {}, "source": { "header": "Authorization", "parameter": "limit", "pointer": "/data/attributes/title" }, "status": "400", "title": "Bad Request" } ] } ``` {% /tab %} {% /tab %} {% tab title="401" %} Unauthorized {% tab title="Model" %} API error response. | Parent field | Field | Type | Description | | ------------ | ------------------------ | -------- | ------------------------------------------------------------------------------- | | | errors [*required*] | [object] | A list of errors. | | errors | detail | string | A human-readable explanation specific to this occurrence of the error. | | errors | meta | object | Non-standard meta-information about the error | | errors | source | object | References to the source of the error. | | source | header | string | A string indicating the name of a single request header which caused the error. | | source | parameter | string | A string indicating which URI query parameter caused the error. | | source | pointer | string | A JSON pointer to the value in the request document that caused the error. | | errors | status | string | Status code of the response. | | errors | title | string | Short human-readable summary of the error. | {% /tab %} {% tab title="Example" %} ```json { "errors": [ { "detail": "Missing required attribute in body", "meta": {}, "source": { "header": "Authorization", "parameter": "limit", "pointer": "/data/attributes/title" }, "status": "400", "title": "Bad Request" } ] } ``` {% /tab %} {% /tab %} {% tab title="429" %} Too many requests {% tab title="Model" %} API error response. | Field | Type | Description | | ------------------------ | -------- | ----------------- | | errors [*required*] | [string] | A list of errors. | {% /tab %} {% tab title="Example" %} ```json { "errors": [ "Bad Request" ] } ``` {% /tab %} {% /tab %} ### Code Example ##### \## default # \# Curl command curl -X POST "https://api.datadoghq.com/api/v2/rum/query/insight/aggregated_long_tasks" \ -H "Accept: application/json" \ -H "Content-Type: application/json" \ -H "DD-API-KEY: ${DD_API_KEY}" \ -H "DD-APPLICATION-KEY: ${DD_APP_KEY}" \ -d @- << EOF { "data": { "attributes": { "application_id": "ccbc53b1-74f2-496b-bdd7-9a8fa7b7376b", "from": 1762437564, "sample_size": 20, "to": 1762523964, "view_name": "/account/login(/:type)" }, "type": "aggregated_long_tasks" } } EOF {% /tab %}