Embed data directly into survey links

High level process

1. Enable Personalised links for a channel
2. Generate signed payload with standard jwt library using the shared secret from previous step
3. Append the token as payload parameter to the survey link

Token format

If the payload will contain a field called id then this will be considered an unique identifier for the response.

For example:

• If set to order id - then with this payload only one response can be created for a single survey and order combincation.
• If set the id to user id - then the user can fill in the survey only once
• in admin interface we always generate unique id - this means that user can answer once with the same link

Code snippet:

import jwt from "jsonwebtoken";

const secret = "SHARED SECRET"; // From sharing channels page
const data = {
    id: "123456",
    // any additional attributes will become context for the survey
    data: "example",
};

// This is server code. Dont put the SHARED SECRET to client side code.
const payload = jwt.sign(data, secret, { expiresIn: "1h" });

// USAGE
// https://youropinion.is/snap/xxx/c/yyy?payload=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.
//      eyJpZCI6IjEyMzQ1Njc4OTAiLCJhZG1pbiI6dHJ1ZSwiaWF0IjoxNTE2MjM5MDIyfQ.
//      mIatWmJPRz4-NU7KWcjuOKNnfWUeLPqYhHb-R7FYunE