Google Apps Script – URL Fetch JSON data from an API and add it to a Google Sheet – Ripple API example

Google Apps Script – UrlFetchApp, SpreadsheetApp, Ripple API, Time Triggers

I have been very fortunate of late to have the patronage of the Ripple XRP cryptocurrency community via XRP Tip Bot and Coil. This is no small part due to the support of user Recreational Rex from Twitter.

Full disclosure here, I don’t really know all that much about cryptocurrencies. I knew about Bitcoin and Ethereum but really didn’t really invest any time and money into looking at these growing forms of value exchange.

But now I’m a little curious.

I thought it would be fun to see what the value of XRP was against a fairly standard metric like the USD and keep a record of this exchange rate daily over a month or so (Mrs Yagi just read the ‘fun‘ in the last sentence and rolled her eyes).

I also thought it would be pretty cool to see how many exchange providers (Gateways) that conduct USD-XRP exchanges are around and see if there is much difference their exchange rate day-to-day among them.

Fortunately for me, the XRP Ledger provides a freely available open-source ledger that can be accessed via the Ripple Data API. The API can return JSON objects from which we can extract the data we need.

Of course, to record and display the daily exchange-rates I went straight to Google Sheets. I gathered the relevant XPR data using Google Apps Script’s UrlFetchApp Class and pushed it to my Google Sheet with SpreadsheetApp Class.

Here is a live embed of the XRP Google Sheet that is updated via a daily time trigger via Google Apps Script.

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Google Apps Scripts: Create Time Triggers to automatically send email task reminders from a Google Sheets check list

Google Apps Script: Time Triggers, ClockTriggerBuilder, ScriptApp

One of the most powerful things about Google Apps Script is the ability to automatically complete tasks with time-driven triggers. You can set up your code to run any one of your functions in your script by the minute, hour, day, week, or month. You can even set it to run based on a specific date.

Have a look at the time-driven trigger options below:

    • Specific Date and Time: Based on: YYYY-MM-DD HH: MM format
    • Minute: Every minute or every 5, 10, 15 or 30 minutes.
    • Hour: Every hour or every 2, 4, 6, 8 or 12 hours.
    • Day: At a time within an hourly bracket. For example:
      • Midnight to 1 am,
      • 3 pm to 4 pm
  • Month: On a specific day of a calendar month at a specific time. For example:
      • Every 3 day of the month at between 3 am and 4 am.

There are two approaches to setting up these time-based triggers. The first one is by simply using the Trigger creator inside the G Suite Developer Hub. This allows you to select the function that you want to add a trigger to for your project and fill out a simple form to determine when you want your trigger to run.

Gsuite Developer hub time trigger

Alternatively, you can create a time trigger programmatically using the ClockTriggerBuilder class.

In this tutorial, we will build on a previous project we’ve called The Badger, that contains a task check off Google Sheet. If the user does not check off their sheet by the due date, then we can send them an HTML email reminder.

Google Apps Script email remind from Google Sheet The Badger 2

Don’t worry, I will provide the starter code and the Google Sheet for you in a minute. However, if you want to learn how I created the email reminder for The Badger you can follow the tutorial here:

Google Apps Script: Create an HTML email reminder service from Google Sheet data.

If you want to see how I created the Spreadsheet, you can check out this link:

Google Sheets: How to create a task completion check sheet.

Setting Up

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Google Apps Script: Create an HTML email reminder service from Google Sheet data.

Google Apps Script: SpreadsheetApp, Utilities, MailApp, UrlFetchApp, HtmlService, onOpen

Ever wanted a quick way to send reminders to staff, letting them know that their task is overdue?

I often have to provide Google Sheet checklists that administration team managers can crosscheck to see if their team members have complete a certain task.

Reminding staff to complete a task can be time consuming and irritating. What if you could send an email to all those staff members who haven’t completed the task with a simple click of the button?

In this tutorial, we will learn how to create a Google Apps Script HTML email mail merge service that will send an email to a staff member who has not completed their task, indicated by a missing tick on a tickbox.

We will use the sample sheet below:

the badger Google Sheet

The Google Sheets reminder is triggered by a custom menu item.  You can see it at the top right of the image.

When the reminder is sent, it collects the rows of staff that have not indicated that they have completed the task.  It then sends an email to those staff members  with the reminder below:

HTML Email Reminder Google Apps Script
Get it! Badger! Ha!

As you can see, I’ve added some custom HTML to highlight the header and modify the width of the image. The email contains a number of unique pieces of data gathered from the Google Sheet Row:

  • The name of the user.
  • The deadline.
  • The name of the sheet (In this case, Tester).
  • The number of days overdue.

It also contains a link to the check sheet for the user to update once they have completed their task.

Back at The Badger Google Sheet, an alert window appears once the code is completed and also indicates any emails that could not be sent.

To get started you can Make a Copy of the Google Sheet by following this link:

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