Record that a library scan finished

curl --request POST \
  --url https://api.fanfeed.ai/v1/users/{user_id}/sync-complete \
  --header 'Content-Type: application/json' \
  --header 'X-PARTNER-API-KEY: <api-key>' \
  --data '
{
  "photos_processed": 1284
}
'

import requests

url = "https://api.fanfeed.ai/v1/users/{user_id}/sync-complete"

payload = { "photos_processed": 1284 }
headers = {
    "X-PARTNER-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-PARTNER-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({photos_processed: 1284})
};

fetch('https://api.fanfeed.ai/v1/users/{user_id}/sync-complete', 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.fanfeed.ai/v1/users/{user_id}/sync-complete",
  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([
    'photos_processed' => 1284
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-PARTNER-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($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.fanfeed.ai/v1/users/{user_id}/sync-complete"

	payload := strings.NewReader("{\n  \"photos_processed\": 1284\n}")

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

	req.Header.Add("X-PARTNER-API-KEY", "<api-key>")
	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.fanfeed.ai/v1/users/{user_id}/sync-complete")
  .header("X-PARTNER-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"photos_processed\": 1284\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fanfeed.ai/v1/users/{user_id}/sync-complete")

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

request = Net::HTTP::Post.new(url)
request["X-PARTNER-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"photos_processed\": 1284\n}"

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

{
  "has_synced": true,
  "last_sync_at": "2026-08-25T18:44:12Z"
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

Sync

Record that a library scan finished

Call this once at the end of a completed library scan, not per batch.

has_synced decides whether the next scan is a full library scan or a narrow incremental one. FanFeed sets it to true only when a completed scan examined the library (photos_processed greater than zero, or omitted while media was received during the scan), and never sets it back to false.

That asymmetry is deliberate. If the flag is set after a scan that never ran (say the user denied photo permission, or the app crashed mid-scan), the account is stuck on the incremental window permanently and never recovers. Pass an honest photos_processed: the count of assets examined, 0 when the scan did not complete.

Idempotent: calling it twice advances last_sync_at twice and is otherwise a no-op.

POST

users

{user_id}

sync-complete

Record that a library scan finished

curl --request POST \
  --url https://api.fanfeed.ai/v1/users/{user_id}/sync-complete \
  --header 'Content-Type: application/json' \
  --header 'X-PARTNER-API-KEY: <api-key>' \
  --data '
{
  "photos_processed": 1284
}
'

import requests

url = "https://api.fanfeed.ai/v1/users/{user_id}/sync-complete"

payload = { "photos_processed": 1284 }
headers = {
    "X-PARTNER-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-PARTNER-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({photos_processed: 1284})
};

fetch('https://api.fanfeed.ai/v1/users/{user_id}/sync-complete', 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.fanfeed.ai/v1/users/{user_id}/sync-complete",
  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([
    'photos_processed' => 1284
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-PARTNER-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($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.fanfeed.ai/v1/users/{user_id}/sync-complete"

	payload := strings.NewReader("{\n  \"photos_processed\": 1284\n}")

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

	req.Header.Add("X-PARTNER-API-KEY", "<api-key>")
	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.fanfeed.ai/v1/users/{user_id}/sync-complete")
  .header("X-PARTNER-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"photos_processed\": 1284\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fanfeed.ai/v1/users/{user_id}/sync-complete")

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

request = Net::HTTP::Post.new(url)
request["X-PARTNER-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"photos_processed\": 1284\n}"

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

{
  "has_synced": true,
  "last_sync_at": "2026-08-25T18:44:12Z"
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

{
  "error": {
    "code": "invalid_batch_size",
    "message": "Send at most 200 media items per request.",
    "details": {}
  }
}

Authorizations

X-PARTNER-API-KEY

string

header

required

Your FanFeed partner API key, issued to your organization.

FanFeed trusts your authentication: the key identifies you, and the user_id in the path identifies which of your users the request is for. FanFeed performs no end-user authentication of its own.

Treat the key as a server-side secret. See the guide for what that implies for the camera-roll ingest path, which is the one call that naturally originates on-device.

Path Parameters

user_id

string<uuid>

required

The FanFeed user id returned by POST /users.

Example:

"8f14e45f-ceea-467a-9a1e-2b4d9c3f0a11"

Body

application/json

photos_processed

integer | null

Assets your scan examined, whether or not you sent them. Pass 0 when the scan did not complete. Omit it and FanFeed infers the answer from what it received during the scan.

Required range: x >= 0

Example:

1284

Response

Sync recorded.

has_synced

boolean

required

Whether this user has ever completed a scan that examined the library. Decides full vs. incremental on the next run. Never returns to false once true.

Example:

true

last_sync_at

string<date-time>

required

Server-side timestamp of the last time FanFeed received media or a sync-complete for this user, advanced by this call.

Example:

"2026-08-25T18:44:12Z"

Users

Media

Sync

Events

Stats

Record that a library scan finished

Authorizations

Path Parameters

Body

Response