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The Definitive Guide to Power Query (M)

You're reading from   The Definitive Guide to Power Query (M) Mastering complex data transformation with Power Query

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Product type Paperback
Published in Mar 2024
Publisher Packt
ISBN-13 9781835089729
Length 758 pages
Edition 1st Edition
Languages
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Authors (3):
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Greg Deckler Greg Deckler
Author Profile Icon Greg Deckler
Greg Deckler
Melissa de Korte Melissa de Korte
Author Profile Icon Melissa de Korte
Melissa de Korte
Rick de Groot Rick de Groot
Author Profile Icon Rick de Groot
Rick de Groot
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Toc

Table of Contents (19) Chapters Close

Preface 1. Introducing M FREE CHAPTER 2. Working with Power Query/M 3. Accessing and Combining Data 4. Understanding Values and Expressions 5. Understanding Data Types 6. Structured Values 7. Conceptualizing M 8. Working with Nested Structures 9. Parameters and Custom Functions 10. Dealing with Dates, Times, and Durations 11. Comparers, Replacers, Combiners, and Splitters 12. Handling Errors and Debugging 13. Iteration and Recursion 14. Troublesome Data Patterns 15. Optimizing Performance 16. Enabling Extensions 17. Other Books You May Enjoy
18. Index

Creating a custom connector

With Visual Studio Code, the Power Query SDK installed, our local environment configured with IIS, and Discord elements created and configured, we can now create a custom connector for Power Query.

The full code for the custom connector for this book is available in the GitHub repository found here: https://github.com/PacktPublishing/The-Definitive-Guide-to-Power-Query-M-/tree/main/Chapter%2016. You can either download the TDGTPQM_Discord.zip file from Chapter 14 in the repository, extract the files, copy and paste the connector folder somewhere on your PC, and then open the folder in Visual Studio Code ( File | Open Folder…), or you can follow along with the rest of this section where we build the connector from scratch.

In either case, you will be well served by reading the code explanations throughout the rest of this section. The rest of this section assumes that you are creating the custom connector from scratch.

The steps to create...

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