Store Survey Results

Survey results are JSON objects that you can store in your own database. For information on backend architecture for Survey Now integration, refer to the following help topic:

Integrate Survey Now Libraries with Backend

On the client side, handle the onComplete event raised in response to a click on the Complete button to send survey results to your server:

import { Model } from "survey-core";

const surveyJson = { ... };

const survey = new Model(surveyJson);
survey.onComplete.add((survey, options) => {
  options.showSaveInProgress();
  const dataObj = { postId: surveyPostId, surveyResult: resultAsStr };
  const dataStr = JSON.stringify(dataObj);
  const headers = new Headers({ "Content-Type": "application/json; charset=utf-8" });
  fetch(surveyServiceUrl + "/post/", {
    method: "POST",
    body: dataStr,
    headers: headers
  }).then(response => {
    if (!response.ok) {
      throw new Error("Could not post the survey results");
    }
    // Display the "Success" message (pass a string value to display a custom message)
    options.showSaveSuccess();
    // Alternatively, you can clear all messages:
    // options.clearSaveMessages();
  }).catch(error => {
    // Display the "Error" message (pass a string value to display a custom message)
    options.showSaveError();
    console.log(error);
  });
});

The onComplete event handler only sends survey results in JSON format to your server. The way you store them fully depends on your backend.

If you are running a NodeJS server, you can check survey results before saving them. On the server, create a SurveyModel and call its clearIncorrectValues(true) method. This method verifies a survey result JSON object against the survey JSON schema and deletes property values that cannot be assigned to a question (such as choice options unlisted in a choices array) and property values that do not correspond to any question or calculated value.

// Server-side code for a NodeJS backend
import { Model } from "survey-core";

const surveyJson = { ... };
const survey = new Model(surveyJson);

survey.data = initialSurveyResultJson;
survey.clearIncorrectValues(true);

const correctSurveyResultJson = survey.data;

• Access Survey Results
• Continue an Incomplete Survey
• Merge Question Values