Get dataset item by id | Opik Documentation

GET/v1/private/datasets/items/{itemId}Get dataset item by id

Get dataset item by id

Parameters

itemIdstring · uuidpathrequired

Responses

objectDatasetItem_Public

created_atstring · date-time

created_bystring

dataobjectrequired

dataset_idstring · uuid

dataset_item_idstring · uuid

Deprecated. Always equals 'id'. Retained for backward compatibility and will be removed in a future version

descriptionstring

pattern (?s)^\s*(\S.*\S|\S)\s*$

evaluatorsarray of object

Show child attributes

Show array items

Default evaluators for items in this version

configobjectrequired

namestringrequired

minLength 1

typestringrequired

one of "llm_judge", "code_metric"

execution_policyobject

Default execution policy for items in this version

Show child attributes

pass_thresholdinteger · int32

maximum 100 · minimum 1

runs_per_iteminteger · int32

maximum 100 · minimum 1

experiment_itemsarray of object

Show child attributes

Show array items

created_atstring · date-time

created_bystring

dataset_item_idstring · uuidrequired

experiment_idstring · uuidrequired

idstring · uuid

last_updated_atstring · date-time

last_updated_bystring

project_idstring · uuid

trace_idstring · uuidrequired

trace_visibility_modestring

one of "default", "hidden"

idstring · uuid

Stable item identifier. On write, used as the upsert key. If omitted, a new ID is generated. Remains the same across dataset versions

last_updated_atstring · date-time

last_updated_bystring

run_summaries_by_experimentobject

sourcestringrequired

one of "manual", "trace", "span", "sdk"

span_idstring · uuid

tagsarray of string

uniqueItems true

Show child attributes

uniqueItems true

trace_idstring · uuid

Example response

{
  "created_at": "2026-06-09T00:00:00Z",
  "created_by": "string",
  "data": {},
  "dataset_id": "00000000-0000-0000-0000-000000000000",
  "dataset_item_id": "00000000-0000-0000-0000-000000000000",
  "description": "string",
  "evaluators": [
    {
      "config": {},
      "name": "string",
      "type": "code_metric"
    }
  ],
  "execution_policy": {
    "pass_threshold": 0,
    "runs_per_item": 0
  },
  "experiment_items": [
    {
      "created_at": "2026-06-09T00:00:00Z",
      "created_by": "string",
      "dataset_item_id": "00000000-0000-0000-0000-000000000000",
      "experiment_id": "00000000-0000-0000-0000-000000000000",
      "id": "00000000-0000-0000-0000-000000000000",
      "last_updated_at": "2026-06-09T00:00:00Z",
      "last_updated_by": "string",
      "project_id": "00000000-0000-0000-0000-000000000000",
      "trace_id": "00000000-0000-0000-0000-000000000000",
      "trace_visibility_mode": "default"
    }
  ],
  "id": "00000000-0000-0000-0000-000000000000",
  "last_updated_at": "2026-06-09T00:00:00Z",
  "last_updated_by": "string",
  "run_summaries_by_experiment": {
    "additionalProp1": {
      "passed_runs": 0,
      "status": "failed",
      "total_runs": 0
    }
  },
  "source": "manual",
  "span_id": "00000000-0000-0000-0000-000000000000",
  "tags": [
    "string"
  ],
  "trace_id": "00000000-0000-0000-0000-000000000000"
}

Examples

itemIdrequiredpath parameter

curl -X GET 'http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000'

const response = await fetch('http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000', { method: 'GET' });
const data = await response.json();

const response = await fetch('http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000', { method: 'GET' });
console.log(await response.json());

import requests

response = requests.request("GET", "http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000")
print(response.json())

package main

import (
	"context"
	"net/http"
)

func main() {
	ctx := context.Background()
	req, err := http.NewRequestWithContext(ctx, "GET", "http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000", nil)
	if err != nil {
		panic(err)
	}
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
}

<?php
$request = curl_init("http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000");
curl_setopt($request, CURLOPT_CUSTOMREQUEST, "GET");
$response = curl_exec($request);
curl_close($request);

var request = HttpRequest.newBuilder(URI.create("http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000"))
    .method("GET", HttpRequest.BodyPublishers.noBody())
    .build();
var response = HttpClient.newHttpClient().send(request, HttpResponse.BodyHandlers.ofString());

require 'net/http'

uri = URI("http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000")
request = Net::HTTPGenericRequest.new("GET", false, true, uri)
response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }

using var client = new HttpClient();
using var request = new HttpRequestMessage(HttpMethod.Get, "http://localhost:5173/api/v1/private/datasets/items/00000000-0000-0000-0000-000000000000");
using var response = await client.SendAsync(request);

{
  "created_at": "2026-06-09T00:00:00Z",
  "created_by": "string",
  "data": {},
  "dataset_id": "00000000-0000-0000-0000-000000000000",
  "dataset_item_id": "00000000-0000-0000-0000-000000000000",
  "description": "string",
  "evaluators": [
    {
      "config": {},
      "name": "string",
      "type": "code_metric"
    }
  ],
  "execution_policy": {
    "pass_threshold": 0,
    "runs_per_item": 0
  },
  "experiment_items": [
    {
      "created_at": "2026-06-09T00:00:00Z",
      "created_by": "string",
      "dataset_item_id": "00000000-0000-0000-0000-000000000000",
      "experiment_id": "00000000-0000-0000-0000-000000000000",
      "id": "00000000-0000-0000-0000-000000000000",
      "last_updated_at": "2026-06-09T00:00:00Z",
      "last_updated_by": "string",
      "project_id": "00000000-0000-0000-0000-000000000000",
      "trace_id": "00000000-0000-0000-0000-000000000000",
      "trace_visibility_mode": "default"
    }
  ],
  "id": "00000000-0000-0000-0000-000000000000",
  "last_updated_at": "2026-06-09T00:00:00Z",
  "last_updated_by": "string",
  "run_summaries_by_experiment": {
    "additionalProp1": {
      "passed_runs": 0,
      "status": "failed",
      "total_runs": 0
    }
  },
  "source": "manual",
  "span_id": "00000000-0000-0000-0000-000000000000",
  "tags": [
    "string"
  ],
  "trace_id": "00000000-0000-0000-0000-000000000000"
}