Login With Facebook Instant Games Id

Signs the user in using a Facebook Instant Games ID, returning a session identifier that can subsequently be used for API calls which require an authenticated user. Requires Facebook Instant Games to be configured.

Error codes

This operation may return the following PlayFab errors:

Error	Code
EncryptionKeyMissing	1290
EvaluationModePlayerCountExceeded	1490
FacebookInstantGamesAuthNotConfiguredForTitle	1397
InvalidFacebookInstantGamesSignature	1396
InvalidSignature	1273
InvalidSignatureTime	1324
PlayerSecretAlreadyConfigured	1294
PlayerSecretNotConfigured	1323
RequestViewConstraintParamsNotAllowed	1303

POST

Client

LoginWithFacebookInstantGamesId

curl --request POST \
  --url https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId \
  --header 'Content-Type: application/json' \
  --data '
{
  "FacebookInstantGamesSignature": "abcdef",
  "CreateAccount": false,
  "TitleId": "144"
}
'

import requests

url = "https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId"

payload = {
    "FacebookInstantGamesSignature": "abcdef",
    "CreateAccount": False,
    "TitleId": "144"
}
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({FacebookInstantGamesSignature: 'abcdef', CreateAccount: false, TitleId: '144'})
};

fetch('https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId', 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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId",
  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([
    'FacebookInstantGamesSignature' => 'abcdef',
    'CreateAccount' => false,
    'TitleId' => '144'
  ]),
  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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId"

	payload := strings.NewReader("{\n  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId")
  .header("Content-Type", "application/json")
  .body("{\n  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId")

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  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\n}"

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

{
  "code": 200,
  "status": "OK",
  "data": {
    "SessionTicket": "50DF92E291CCD4C3---A54F-8D3909FF54DEE10-B7817722BC94E536.A6DCCFE1C9709ABB",
    "PlayFabId": "50DF92E291CCD4C3"
  }
}

{
  "code": 123,
  "errorCode": 123,
  "status": "<string>",
  "error": "<string>",
  "errorMessage": "<string>",
  "errorDetails": {}
}

Body

application/json

FacebookInstantGamesSignature

string

required

Facebook Instant Games signature for the user.

TitleId

string

required

Unique identifier for the title, found in the Settings > Game Properties section of the PlayFab developer site when a title has been selected.

CreateAccount

boolean

Automatically create a PlayFab account if one is not currently linked to this ID.

CustomTags

object

The optional custom tags associated with the request (e.g. build number, external trace identifiers, etc.).

EncryptedRequest

string

Base64 encoded body that is encrypted with the Title's public RSA key.

InfoRequestParameters

object

Flags for which pieces of info to return for the user.

Show child attributes

Example:

{
  "GetUserAccountInfo": true,
  "GetUserVirtualCurrency": true,
  "GetUserData": true,
  "UserDataKeys": ["preferences", "progress"]
}

PlayerSecret

string

Player secret that is used to verify API request signatures.

Response

code

integer

The Http status code. If X-ReportErrorAsSuccess header is set to true, this will report the actual http error code.

status

string

The Http status code as a string.

data

object

Show child attributes

Example:

{
  "SessionTicket": "50DF92E291CCD4C3---A54F-8D3909FF54DEE10-B7817722BC94E536.A6DCCFE1C9709ABB",
  "PlayFabId": "50DF92E291CCD4C3"
}

Last modified on October 1, 2026

⌘I

curl --request POST \
  --url https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId \
  --header 'Content-Type: application/json' \
  --data '
{
  "FacebookInstantGamesSignature": "abcdef",
  "CreateAccount": false,
  "TitleId": "144"
}
'

import requests

url = "https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId"

payload = {
    "FacebookInstantGamesSignature": "abcdef",
    "CreateAccount": False,
    "TitleId": "144"
}
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({FacebookInstantGamesSignature: 'abcdef', CreateAccount: false, TitleId: '144'})
};

fetch('https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId', 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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId",
  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([
    'FacebookInstantGamesSignature' => 'abcdef',
    'CreateAccount' => false,
    'TitleId' => '144'
  ]),
  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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId"

	payload := strings.NewReader("{\n  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\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://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId")
  .header("Content-Type", "application/json")
  .body("{\n  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{titleId}.playfabapi.com/Client/LoginWithFacebookInstantGamesId")

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  \"FacebookInstantGamesSignature\": \"abcdef\",\n  \"CreateAccount\": false,\n  \"TitleId\": \"144\"\n}"

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

{
  "code": 200,
  "status": "OK",
  "data": {
    "SessionTicket": "50DF92E291CCD4C3---A54F-8D3909FF54DEE10-B7817722BC94E536.A6DCCFE1C9709ABB",
    "PlayFabId": "50DF92E291CCD4C3"
  }
}

{
  "code": 123,
  "errorCode": 123,
  "status": "<string>",
  "error": "<string>",
  "errorMessage": "<string>",
  "errorDetails": {}
}

PlayFab API

PlayFab REST API References

Login With Facebook Instant Games Id

Error codes

Body

Response