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Developers

We've designed GMass to be easy to use — our goal is that any user of any level can install the GMass Chrome extension and feel confident sending personalized mass emails in minutes.

But as a developer, you know it takes a lot of sophistication behind-the-scenes to make everything out front work so smooth.

Here in the developers archives, you can dig into the most technical articles we've written on the GMass blog. Pick up high-level techniques around GMass, the GMass API, Gmail, server management and more.
Gmail Chrome Extension Content Script

December 6, 2020

Getting the timing of a Gmail Chrome extension content script just right

If you're developing a Chrome extension for Gmail, you should know that Google's documentation on when a content script runs is wrong.

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how to block IP addresses in AWS

June 22, 2020

How to block IP Addresses in an AWS/Windows/IIS environment

There are a few ways to block an IP address in an AWS/Windows environment, but only a couple good ones. I'll show you the bad and good ones.

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google picker

May 13, 2020

Advanced Techniques with the Google Picker API

If your app needs to let a user pick a file from his Google Drive, you might consider using the …

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O auth incremental authorization

April 23, 2020

Google OAuth’s Incremental Authorization is Useless

A best practice for using OAuth2 is to use incremental authorization, but I found it mostly useless. I'll compare it to eating out at a restaurant.

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redirecting to www and https

March 17, 2020

A better way to get an IIS site to redirect to www and https

If you’ve deployed sites to IIS, at some point, you probably Googled how to make your site redirect from the …

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Connect WPForms to backend

February 15, 2020

How to connect WPForms to a custom backend (example using .NET and SQL Server)

WPForms is great for designing forms and adding them to your WordPress posts. If you want the data to go somewhere other than MySQL, here's how you do it.

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December 11, 2019

Developer’s Guide to the Gmail API and From Addresses/Names

Using the Gmail API to retrieve From Address/Name information for Drafts and Messages comes along with some idiosyncrasies. Here's how to deal with them.

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October 17, 2019

The Gmail API’s quirky handling of HTML and Plain Text messages parts

The Gmail API is tricky with plain text messages. It forces a plain text MIME part when you don't want one, and overwrites your plain text with its own.

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July 12, 2019

How to send a cookie with a cross-origin XMLHttpRequest from a Chrome extension

When developing a Chrome extension, you might need to get an XMLHttpRequest that’s part of a content script to send cookies …

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February 5, 2019

How to handle Google’s disabling of inline installations of Chrome extensions

On June 12, 2018, Google disabled inline installation of Chrome extensions. This means that now you can’t directly install an extension …

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February 4, 2019

How to get a Google user’s email address after the Google+ API shutdown

If you’re a developer using any part of Google’s API, you’ve likely received notices informing you that come March 7, …

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October 16, 2018

How to redirect the user to a website after installing a Chrome extension

If you’re the developer of a Chrome extension, after a user installs your extension from the Chrome Web Store, you may …

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