Use Widgets to Track Live Location

Use Widgets to Track Live Location

Requirement

Share the live location of a device and display it on a map that can be accessed from anywhere for tracking purposes.

Use Case

When an ambulance is on the run, it needs to reach the nearest hospital on time. To avoid any traffic, the ambulance driver shares the location of the vehicle with the police. The police officials track the live location of the vehicle on a map to help them navigate through the traffic and reach the nearest hospital at the earliest.

Steps to Follow

1. Create an application titled Tracking.

2. Create a form with the following details as your reference.

Form Name

Form Link Name

Field Type

Field Name

Field Link Name

Tracking

tracking

Address

Address

Address

Decimal

Longitude (with 7 Decimal Points )

Longitude

Decimal

Latitude (with 7 Decimal Points )

Latitude

The coordinates of the ambulance driver get auto-populated at an interval of 10 seconds in this Tracking form when they share their location.
This application has two widgets for the following purposes:
  1. For the ambulance drivers to share their location.
  1. For the police to track and view the ambulance driver's live location on GMaps.

3. The widgets can either be directly uploaded to Creator using the sample ZIP attachment at the end of this document or be created using terminal and then be uploaded to Creator.

Utilize Sample ZIP Attachment
i) Download the sample ZIP file attached at the end of this document. This contains all the primary and secondary files related to the Tracking app.
Notes
Note : If you're using the sample ZIP attachment to create your widgets, skip to step 4 after the download.
(OR)
Use Terminal to Create the Widgets
i) Install CLI to create a widget using terminal. After successful installation, navigate in the terminal to the file directory in which you want to create your project.
  1. cd Documents

ii) Run the following command in terminal to create a new project.
Notes
Note : All the commands in this page are directed towards working in a terminal. The same script can also be used in command prompt for Windows.
  1. zet init

iii) A list of Zoho Services will be displayed. Select Zoho Creator as the required service.


iv) Enter the Project Name as Tracking. The project folder will be created in the file directory you had navigated to. Here, the file directory folder is Documents .

v) Navigate to the widget.html file, as below. Rename it as enableTracking.html. Customize the script for this widget and insert it into the widget file. This widget creates a Share My Location button that the ambulance driver should use to enable the tracking of their live location.
Notes
Note : Alternately, you can copy and paste the sample script from the enableTracking.html file, which has been provided at the end of this document to create this widget instantly.  


vi) In terminal, enter the following commands to create one more widget file in your local storage. It will display GMaps for the police to view the location of the ambulance.
Notes
Note : The following commands execute their corresponding actions as mentioned below.

Command

Action

cd

Navigates to directory file

cd *file name*

Navigates to the file

mkdir *folder name*

Creates the folder

touch *file name*

Creates the file


  1. cd tracking/app
  2. mkdir GMaps
  3. cd Gmaps
  4. touch watchPosition.html

vii) Navigate to your local storage. Create and customize the secondary files (css and js) by writing your own scripts inside the app folder.
Notes
Note : Alternately, you can copy and paste the secondary folders inside the app folder.

viii) Customize the code for the watchPosition.html  (GMaps) and its equivalent js file.
 
Notes
Note : Alternately, you can copy and paste the code for the watchPosition.html (GMaps) and its equivalent js file. 

ix) Run the following command to validate and pack your project.

  1. cd
  2. cd Tracking
  3. zet validate
  4. zet pack
A ZIP file containing the primary and secondary files of your widget project will be created in the dist folder of your project directory.

 

4.  Navigate to the Settings of your Creator application. Click Widgets.


5. Click Create. The New Widget pane will pop up.

6. Fill in the corresponding fields with the details provided in the below table and create two widgets.
Notes
Note :
  1. The Index file is the primary file into which the widget's script is encoded. It links all the aspects of the widget together. Each index file is specific to its respective widget.
  2. The widget ZIP file is the file that encloses the primary and secondary files of all the widgets that are to be added. 

 

Name

Hosting

Widget File (Browse)

Index File

Widget 1

enableTracking

Internal

Tracking.zip

/enableTracking.html

Widget 2

GMaps

Internal

Tracking.zip

/GMaps/watchPosition.html


7. Create the following pages and add the respective widgets as mentioned below.

 

 

Page Name

Page Link Name

Widget

Description

1

Share Location

 

Share_Location

enableTracking

The Share Location page will contain the Share My Location button that will, when clicked, update the coordinates of the ambulance driver in the Tracking form.

2

GMaps - Live Tracking

 

GMaps_Live_Tracking

 

GMaps

The GMaps - Live Tracking page will contain the GMaps that will show the live moving location of the ambulance to the Police.


Points To Note

  1. You can choose to use GMaps or pick a different map altogether. We have attached the scripts for GMaps and OpenStreetMap at the end of this document for your reference.
  1. Add permissions under User Permissions for the ambulance drivers and the Police in the Settings of your application with the below images as reference.
  1. For Ambulance Drivers:

  2. For Police:

  1. Click Users under the MANAGE section of your Creator application and add users by specifying the Application Name , Role and Permissions  with the below images as reference.
    1. For Ambulance Drivers:

    2. For Police:

See How it Works



  1. Understand Widgets
  2. Add Widget to a Page
  3. Understand Pages
  4. Install Command Line Interface
  5. Understand Permissions
  6. Understand Users


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