Use the imp_uid obtained through identity verification to get the customer's verification information.

STEP 01. Get verification ID (imp_uid) on the server-side

The following server-side code fetches the data returned from identity verification.

server-side
app.use(bodyParser.json()); // controller that handles POST request to "/certifications" app.post("/certifications", async (request, response) => { // Get imp_uid from req.body const { imp_uid } = request.body; });

STEP 02. Get verification information

To get verification information from the i'mport server, you must first get a REST API access token. Use the access token and imp_uid (verification ID) to call the Get identity verification info REST API that returns the verification information as follows:

sever-side
app.use(bodyParser.json()); // controller that handles POST request to "/certifications" app.post("/certifications", async (request, response) => { const { imp_uid } = request.body; // Get imp_uid from request.body try { // Get access token const getToken = await axios({ url: "https://api.iamport.kr/users/getToken", method: "post", // POST method headers: { "Content-Type": "application/json" }, // "Content-Type": "application/json" data: { imp_key: "imp_apikey", // REST API Key imp_secret: "ekKoeW8RyKuT0zgaZsUtXXTLQ4AhPFW3ZGseDA6bkA5lamv9OqDMnxyeB9wqOsuO9W3Mx9YSJ4dTqJ3f", // REST API Secret }, }); const { access_token } = getToken.data.response; // Access token // Get verification info from i'mport server using imp_uid const getCertifications = await axios({ url: `https://api.iamport.kr/certifications/${imp_uid}`, // Pass imp_uid method: "get", // GET method headers: { Authorization: access_token }, // Add access token to Authorization header }); const certificationsInfo = getCertifications.data.response; // Save verification info } catch (e) { console.error(e); } });

STEP 03. Using verification information

Retrieve the following user information from the verification information and add the necessary service logic.

  • name: name

  • gender: gender

  • birth: date of birth

  • unique_key: same as CI value - unique key to identify the user, such as online social security number.

  • unique_in_site: same as DI value - unique key to identify the user per Merchant ID (website).

unique_key and unique_in_site

Even if multiple credit cards are used to verify the same person, the same unique_key and unique_in_site values are returned for the cards under the same name.

Node.js
// controller that handles POST request to "/certifications" app.post("/certifications", async (request, response) => { const { imp_uid } = request.body; // Get imp_uid from request.body try { // Get access token /* ...Omitted... */ // Get verification info using imp_uid /* ...Omitted... */ const certificationsInfo = getCertifications.data.response; // Save verification info // unique_key: Unique key for user, unique_in_site: Unique key for user per site const { unique_key, unique_in_site, name, gender, birth } = certificationsInfo; // Check age restrictions if (new Date(birth).getFullYear() <= 1999) { // Check successful } else { // Check failed } // one account per person check // Query database with unique_key to check for existing account Users.find({ certificationKey: unique_key }).then((user) => { if (!user) { // New user } else { // Existing user } }); } catch (e) { console.error(e); } });