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Using TypeScript with DNSControl (experimental)
What is this?
Would you like your editor to support auto-completion and other advanced IDE
features when editing dnsconfig.js? Yes you can!
While DNSControl does not support TypeScript syntax in dnsconfig.js, you can
still use TypeScript’s features in editors which support it.
If you’re using Visual Studio Code (or another editor that supports TypeScript), you
should now be able to see the type information in your dnsconfig.js file as
you type. Hover over record names to read their documentation without having to
open the documentation website!
How to activate auto-completion
To set up TypeScript support in Visual Studio Code, follow these steps:
- Run this command to generate the file
types-dnscontrol.d.ts.
dnscontrol write-types
This file has all the information your editor or IDE needs. It must be in the same directory as the dnsconfig.js file you are editing.
NOTE: Re-run the dnscontrol write-types command any time you upgrade
DNSControl. Because it is generated from the command, it will always be correct
for the version of DNSControl you are using.
- Tell your editor
At this point some features (autocomplete) will work. However to get the full experience, including type checking (i.e. red squiggly underlines when you misuse APIs), there is one more step.
Add this comment to the top of your dnsconfig.js file:
// @ts-check
That should be all you need to do!
If your editor requires extra steps, please file a bug and we'll update this page.
Bugs?
Bugs? Not all features of DNSControl work perfectly at the moment. Please report bugs and feature requests on https://github.com/StackExchange/dnscontrol/issues
This is experimental. This feature is currently experimental. We might change the installation instructions as we find better ways to enable this.
Known bugs
Bug: CLI_DEFAULTS not implemented
Bug: Values passed to CLI_DEFAULTS (and the corresponding -v command-line option) don’t show up as global variables
Workaround: create a new .d.ts file in the same folder as your dnsconfig.js file. In that file, add the following line for each variable you want to use (replacing VARIABLE_NAME with the name of the variable).
declare const VARIABLE_NAME: string;
This will tell TypeScript that the variable exists, and that it’s a string.
Known issue: FETCH not always accurate
Bug: FETCH is always shown as available, even if you don’t run DNSControl with the --allow-fetch flag.