> For the complete documentation index, see [llms.txt](https://docs.flashback.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flashback.tech/support-reference/platform-api-reference/mfa-multi-factor-authentication/post__mfa_passkey_complete-registration-1.md). # post\_\_mfa\_passkey\_complete-registration-1 #### Code Samples {% tabs %} {% tab title="Shell" %} ```shell # You can also use wget curl -X POST https://backend.flashback.tech/mfa/passkey/complete-registration-1 \ -H 'Content-Type: application/json' \ -H 'Accept: application/json' \ -H 'Authorization: Bearer {access-token}' \ -d '{ "credential": { "id": "credential-id", "rawId": "raw-credential-id", "response": { "clientDataJSON": "client-data-json", "attestationObject": "attestation-object" }, "type": "public-key" }, "challenge": "dGVzdCBjaGFsbGVuZ2U=" }' ``` {% endtab %} {% tab title="HTTP" %} ```http POST https://backend.flashback.tech/mfa/passkey/complete-registration-1 HTTP/1.1 Host: localhost:3000 Content-Type: application/json Accept: application/json Authorization: Bearer {access-token} { "credential": { "id": "credential-id", "rawId": "raw-credential-id", "response": { "clientDataJSON": "client-data-json", "attestationObject": "attestation-object" }, "type": "public-key" }, "challenge": "dGVzdCBjaGFsbGVuZ2U=" } ``` {% endtab %} {% tab title="JavaScript" %} ```javascript const inputBody = '{ "credential": { "id": "credential-id", "rawId": "raw-credential-id", "response": { "clientDataJSON": "client-data-json", "attestationObject": "attestation-object" }, "type": "public-key" }, "challenge": "dGVzdCBjaGFsbGVuZ2U=" }'; const headers = { 'Content-Type':'application/json', 'Accept':'application/json', 'Authorization':'Bearer {access-token}' }; fetch('https://backend.flashback.tech/mfa/passkey/complete-registration-1', { method: 'POST', body: inputBody, headers: headers }) .then(function(res) { return res.json(); }).then(function(body) { console.log(body); }); ``` {% endtab %} {% tab title="Ruby" %} ```ruby require 'rest-client' require 'json' headers = { 'Content-Type' => 'application/json', 'Accept' => 'application/json', 'Authorization' => 'Bearer {access-token}' } result = RestClient.post 'https://backend.flashback.tech/mfa/passkey/complete-registration-1', params: { }, headers: headers p JSON.parse(result) ``` {% endtab %} {% tab title="Python" %} ```python import requests headers = { 'Content-Type': 'application/json', 'Accept': 'application/json', 'Authorization': 'Bearer {access-token}' } r = requests.post('https://backend.flashback.tech/mfa/passkey/complete-registration-1', headers = headers) print(r.json()) ``` {% endtab %} {% tab title="PHP" %} ```php 'application/json', 'Accept' => 'application/json', 'Authorization' => 'Bearer {access-token}', ); $client = new \GuzzleHttp\Client(); // Define array of request body. $request_body = array( 'credential' => array( 'id' => 'credential-id', 'rawId' => 'raw-credential-id', 'response' => array( 'clientDataJSON' => 'client-data-json', 'attestationObject' => 'attestation-object' ), 'type' => 'public-key' ), 'challenge' => 'dGVzdCBjaGFsbGVuZ2U=' ); try { $response = $client->request('POST','https://backend.flashback.tech/mfa/passkey/complete-registration-1', array( 'headers' => $headers, 'json' => $request_body, ) ); print_r($response->getBody()->getContents()); } catch (\GuzzleHttp\Exception\BadResponseException $e) { // handle exception or api errors. print_r($e->getMessage()); } // ... ``` {% endtab %} {% tab title="Java" %} ```java URL obj = new URL("https://backend.flashback.tech/mfa/passkey/complete-registration-1"); HttpURLConnection con = (HttpURLConnection) obj.openConnection(); con.setRequestMethod("POST"); con.setRequestProperty("Content-Type", "application/json"); con.setRequestProperty("Accept", "application/json"); con.setRequestProperty("Authorization", "Bearer {access-token}"); con.setDoOutput(true); String jsonInputString = "{\"credential\":{\"id\":\"credential-id\",\"rawId\":\"raw-credential-id\",\"response\":{\"clientDataJSON\":\"client-data-json\",\"attestationObject\":\"attestation-object\"},\"type\":\"public-key\"},\"challenge\":\"dGVzdCBjaGFsbGVuZ2U=\"}"; try(OutputStream os = con.getOutputStream()) { byte[] input = jsonInputString.getBytes("utf-8"); os.write(input, 0, input.length); } int responseCode = con.getResponseCode(); BufferedReader in = new BufferedReader( new InputStreamReader(con.getInputStream())); String inputLine; StringBuffer response = new StringBuffer(); while ((inputLine = in.readLine()) != null) { response.append(inputLine); } in.close(); System.out.println(response.toString()); ``` {% endtab %} {% tab title="Go" %} ```go package main import ( "bytes" "net/http" ) func main() { headers := map[string][]string{ "Content-Type": []string{"application/json"}, "Accept": []string{"application/json"}, "Authorization": []string{"Bearer {access-token}"}, } data := bytes.NewBuffer([]byte{`{"credential":{"id":"credential-id","rawId":"raw-credential-id","response":{"clientDataJSON":"client-data-json","attestationObject":"attestation-object"},"type":"public-key"},"challenge":"dGVzdCBjaGFsbGVuZ2U="}`}) req, err := http.NewRequest("POST", "https://backend.flashback.tech/mfa/passkey/complete-registration-1", data) req.Header = headers client := &http.Client{} resp, err := client.Do(req) // ... } ``` {% endtab %} {% endtabs %} `POST /mfa/passkey/complete-registration-1` *Complete Passkey Registration (Alternative Endpoint)* Alternative endpoint for completing the WebAuthn passkey registration process. This endpoint provides the same functionality as the standard complete-registration endpoint but may be used for specific client implementations or testing purposes. #### Request Body | Name | Type | Required | Description | | ---------- | ------ | -------- | ------------------------------------------------- | | credential | object | true | WebAuthn credential from the client | | challenge | string | true | Base64-encoded challenge used during registration | > Body parameter ```json { "credential": { "id": "credential-id", "rawId": "raw-credential-id", "response": { "clientDataJSON": "client-data-json", "attestationObject": "attestation-object" }, "type": "public-key" }, "challenge": "dGVzdCBjaGFsbGVuZ2U=" } ``` > Example responses > 200 Response ```json { "success": true, "message": "Passkey registration completed" } ``` > 400 Response ```json { "success": false, "error": "Passkey registration failed" } ``` > 500 Response ```json { "success": false, "error": "Failed to complete passkey registration" } ``` #### Responses | Status | Meaning | Description | Schema | | ------ | -------------------------------------------------------------------------- | ------------------------------------------- | ------ | | 200 | [OK](https://tools.ietf.org/html/rfc7231#section-6.3.1) | Passkey registration completed successfully | Inline | | 400 | [Bad Request](https://tools.ietf.org/html/rfc7231#section-6.5.1) | Registration failed | Inline | | 500 | [Internal Server Error](https://tools.ietf.org/html/rfc7231#section-6.6.1) | Internal server error | Inline | #### Response Schema Status Code **200** | Name | Type | Required | Restrictions | Description | | --------- | ------- | -------- | ------------ | --------------------------------------- | | » success | boolean | false | none | Indicates if the request was successful | | » message | string | false | none | Success message confirming registration | Status Code **400** | Name | Type | Required | Restrictions | Description | | --------- | ------- | -------- | ------------ | ------------------------------------------------- | | » success | boolean | false | none | Indicates if the request was successful | | » error | string | false | none | Error message describing the registration failure | Status Code **500** | Name | Type | Required | Restrictions | Description | | --------- | ------- | -------- | ------------ | --------------------------------------- | | » success | boolean | false | none | Indicates if the request was successful | | » error | string | false | none | Error message describing the issue | --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.flashback.tech/support-reference/platform-api-reference/mfa-multi-factor-authentication/post__mfa_passkey_complete-registration-1.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.