Diff Run

Complete a run and get the computed diff

POST /api/platform/diffRun

Diff Run

cURL

curl --request POST \
  --url https://api.example.com/api/platform/diffRun \
  --header 'Content-Type: application/json' \
  --data '
{
  "runId": "<string>"
}
'

import requests

url = "https://api.example.com/api/platform/diffRun"

payload = { "runId": "<string>" }
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({runId: '<string>'})
};

fetch('https://api.example.com/api/platform/diffRun', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/api/platform/diffRun",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'runId' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/api/platform/diffRun"

	payload := strings.NewReader("{\n  \"runId\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.example.com/api/platform/diffRun")
  .header("Content-Type", "application/json")
  .body("{\n  \"runId\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/api/platform/diffRun")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"runId\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

200

{
  "runId": "<string>",
  "status": "<string>",
  "diff": {}
}

Request

POST /api/platform/diffRun

Body Parameters

runId · string · required

Run ID from startRun

Example Request

curl -X POST https://api.agentdiff.dev/api/platform/diffRun \
  -H "X-API-Key: ad_live_sk_..." \
  -H "Content-Type: application/json" \
  -d '{
    "runId": "run-xyz789"
  }'

Response

runId · string

Run identifier

status · string

Run status: "completed"

diff · object

Computed diff with inserts, updates, and deletes

Example Response

{
  "runId": "run-xyz789",
  "status": "completed",
  "diff": {
    "inserts": [
      {
        "__table__": "messages",
        "message_id": "1732645891.000200",
        "channel_id": "C01GENERAL99",
        "user_id": "U01AGENBOT9",
        "message_text": "Hello World!",
        "created_at": "2025-11-26T15:31:31"
      }
    ],
    "updates": [
      {
        "__table__": "channels",
        "before": {
          "last_message_at": null
        },
        "after": {
          "last_message_at": "2025-11-26T15:31:31"
        }
      }
    ],
    "deletes": []
  }
}

Diff Structure

Inserts

New records created during the run:

{
  "__table__": "messages",
  "message_id": "...",
  "channel_id": "...",
  "message_text": "Hello!"
}

Updates

Modified records with before/after values:

{
  "__table__": "channels",
  "before": { "message_count": 5 },
  "after": { "message_count": 6 }
}

Deletes

Records removed during the run:

{
  "__table__": "messages",
  "message_id": "1234567890.000100"
}

What Happens

1. After snapshot: Current database state is captured
2. Diff computed: Before/after states compared
3. Results returned: Full diff returned immediately
4. Replication stopped: WAL capture ends

Use this when you want the raw diff without running assertions. For evaluation with assertions, use evaluateRun instead.

Errors

Error	Status	Description
run_not_found	404	Run doesn’t exist
run_already_completed	400	Run already completed

SDK Usage

Python

diff = client.diff_run(runId=run.runId)

print(f"Inserts: {len(diff.diff['inserts'])}")
print(f"Updates: {len(diff.diff['updates'])}")
print(f"Deletes: {len(diff.diff['deletes'])}")

for insert in diff.diff['inserts']:
    print(f"  + [{insert['__table__']}] {insert}")

const diff = await client.diffRun({ runId: run.runId });

console.log(`Inserts: ${diff.diff.inserts.length}`);
console.log(`Updates: ${diff.diff.updates.length}`);
console.log(`Deletes: ${diff.diff.deletes.length}`);

diff.diff.inserts.forEach(insert => {
  console.log(`  + [${insert.__table__}]`, insert);
});