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v 1.9.44

Add Survey Analytics to an Angular Application

This step-by-step tutorial will help you get started with Survey Analytics in an Angular application. To add Survey Analytics to your application, follow the steps below:

As a result, you will create the following dashboard:

You can find the full code for this tutorial in the following GitHub repository: Get Started with SurveyJS Analytics - Angular.

Install the survey-analytics npm Package

Survey Analytics is distributed as a survey-analytics npm package. Run the following command to install it:

npm install survey-analytics --save

Survey Analytics depends on the Plotly.js and Wordcloud libraries. Wordcloud is used to visualize the Text, Multiple Text, and Comment question types. Plotly.js is used to visualize the rest of the question types. Use the following commands to install type definitions for these libraries:

npm i @types/plotly.js-dist-min @types/wordcloud --save-dev

Due to the design of Plotly.js exports, you should also open the tsconfig.json file and set the allowSyntheticDefaultImports flag to true:

{
  "compilerOptions": {
    // ...
    "allowSyntheticDefaultImports": true
  }
}

Configure Styles

Open the angular.json file and reference the Survey Analytics style sheet:

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  // ...
  "projects": {
    "project-name": {
      "projectType": "application",
      // ...
      "architect": {
        "build": {
          // ...
          "options": {
            // ...
            "styles": [
              "src/styles.css",
              "node_modules/survey-analytics/survey.analytics.min.css"
            ],
            // ...
          }
        }
      }
    }
  }
}

Load Survey Results

You can access survey results as a JSON object within the SurveyModel's onComplete event handler. Send the results to your server and store them with a specific survey ID. Refer to the Handle Survey Completion help topic for more information.

To load the survey results, send the survey ID to your server and return an array of JSON objects:

import { AfterViewInit, Component } from '@angular/core';

const SURVEY_ID = 1;

@Component({
  // ...
})
export class AppComponent implements AfterViewInit {
  // ...
  ngAfterViewInit(): void {
    loadSurveyResults("https://your-web-service.com/" + SURVEY_ID)
      .then((surveyResults) => {
        // ...
        // Configure and render the Visualization Panel here
        // Refer to the help topics below
        // ...
      });
  }
}

function loadSurveyResults (url) {
  return new Promise((resolve, reject) => {
    const request = new XMLHttpRequest();
    request.open('GET', url);
    request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    request.onload = () => {
      const response = request.response ? JSON.parse(request.response) : [];
      resolve(response);
    }
    request.onerror = () => {
      reject(request.statusText);
    }
    request.send();
  });
}

For demonstration purposes, this tutorial uses predefined survey results. The following code shows a survey model and the structure of the survey results array:

const surveyJson = {
  elements: [{
    name: "satisfaction-score",
    title: "How would you describe your experience with our product?",
    type: "radiogroup",
    choices: [
      { value: 5, text: "Fully satisfying" },
      { value: 4, text: "Generally satisfying" },
      { value: 3, text: "Neutral" },
      { value: 2, text: "Rather unsatisfying" },
      { value: 1, text: "Not satisfying at all" }
    ],
    isRequired: true
  }, {
    name: "nps-score",
    title: "On a scale of zero to ten, how likely are you to recommend our product to a friend or colleague?",
    type: "rating",
    rateMin: 0,
    rateMax: 10,
  }],
  showQuestionNumbers: "off",
  completedHtml: "Thank you for your feedback!",
};

const surveyResults = [{
  "satisfaction-score": 5,
  "nps-score": 10
}, {
  "satisfaction-score": 5,
  "nps-score": 9
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 2,
  "nps-score": 3
}];

Configure the Visualization Panel

Analytics charts are displayed in a Visualization Panel. Specify its properties in a configuration object. In this tutorial, the object enables the allowHideQuestions property:

const vizPanelOptions = {
  allowHideQuestions: false
}

Pass the configuration object, survey questions, and results to the VisualizationPanel constructor as shown in the code below to instantiate the Visualization Panel. Assign the produced instance to a constant that will be used later to render the component:

import { AfterViewInit, Component } from '@angular/core';
import { Model } from 'survey-core';
import { VisualizationPanel } from 'survey-analytics';

const surveyJson = { /* ... */ };
const surveyResults = [ /* ... */ ];
const vizPanelOptions = { /* ... */ };

@Component({
  // ...
})
export class AppComponent implements AfterViewInit {
  ngAfterViewInit(): void {
    const survey = new Model(surveyJson);
    const vizPanel = new VisualizationPanel(
      survey.getAllQuestions(),
      surveyResults,
      vizPanelOptions
    );
  }
}
View full code
import { AfterViewInit, Component } from '@angular/core';
import { Model } from 'survey-core';
import { VisualizationPanel } from 'survey-analytics';

const surveyJson = {
  elements: [{
    name: "satisfaction-score",
    title: "How would you describe your experience with our product?",
    type: "radiogroup",
    choices: [
      { value: 5, text: "Fully satisfying" },
      { value: 4, text: "Generally satisfying" },
      { value: 3, text: "Neutral" },
      { value: 2, text: "Rather unsatisfying" },
      { value: 1, text: "Not satisfying at all" }
    ],
    isRequired: true
  }, {
    name: "nps-score",
    title: "On a scale of zero to ten, how likely are you to recommend our product to a friend or colleague?",
    type: "rating",
    rateMin: 0,
    rateMax: 10,
  }],
  showQuestionNumbers: "off",
  completedHtml: "Thank you for your feedback!",
};

const surveyResults = [{
  "satisfaction-score": 5,
  "nps-score": 10
}, {
  "satisfaction-score": 5,
  "nps-score": 9
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 2,
  "nps-score": 3
}];

const vizPanelOptions = {
  allowHideQuestions: false
}

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements AfterViewInit {
  title = 'SurveyJS Analytics for Angular';

  ngAfterViewInit(): void {
    const survey = new Model(surveyJson);
    const vizPanel = new VisualizationPanel(
      survey.getAllQuestions(),
      surveyResults,
      vizPanelOptions
    );
  }
}

Render the Visualization Panel

Switch to the component template. Add a page element that will serve as the Visualization Panel container:

<div id="surveyVizPanel"></div>

To render the Visualization Panel in the page element, call the render(containerId) method on the Visualization Panel instance you created in the previous step:

// ...

@Component({
  // ...
})
export class AppComponent implements AfterViewInit {
  ngAfterViewInit(): void {
    // ...
    vizPanel.render("surveyVizPanel");
  }
}

To view the application, run ng serve in a command line and open http://localhost:4200/ in your browser.

View full code
<div id="surveyVizPanel"></div>
import { AfterViewInit, Component } from '@angular/core';
import { Model } from 'survey-core';
import { VisualizationPanel } from 'survey-analytics';

const surveyJson = {
  elements: [{
    name: "satisfaction-score",
    title: "How would you describe your experience with our product?",
    type: "radiogroup",
    choices: [
      { value: 5, text: "Fully satisfying" },
      { value: 4, text: "Generally satisfying" },
      { value: 3, text: "Neutral" },
      { value: 2, text: "Rather unsatisfying" },
      { value: 1, text: "Not satisfying at all" }
    ],
    isRequired: true
  }, {
    name: "nps-score",
    title: "On a scale of zero to ten, how likely are you to recommend our product to a friend or colleague?",
    type: "rating",
    rateMin: 0,
    rateMax: 10,
  }],
  showQuestionNumbers: "off",
  completedHtml: "Thank you for your feedback!",
};

const surveyResults = [{
  "satisfaction-score": 5,
  "nps-score": 10
}, {
  "satisfaction-score": 5,
  "nps-score": 9
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 3,
  "nps-score": 6
}, {
  "satisfaction-score": 2,
  "nps-score": 3
}];

const vizPanelOptions = {
  allowHideQuestions: false
}

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements AfterViewInit {
  title = 'SurveyJS Analytics for Angular';

  ngAfterViewInit(): void {
    const survey = new Model(surveyJson);
    const vizPanel = new VisualizationPanel(
      survey.getAllQuestions(),
      surveyResults,
      vizPanelOptions
    );
    vizPanel.render("surveyVizPanel");
  }
}

View full code on GitHub

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