4. Get verification info

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;
});

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

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 (to be supported)

• 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).

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);
  }
});