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* Architecture documentation for the configurator and api * Apply suggestions from code review Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com> Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>
62 lines
3.7 KiB
Markdown
62 lines
3.7 KiB
Markdown
# QMK Configurator Architecture
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This page describes the web architecture behind QMK Configurator at a high level. If you are interested in the architecture of the QMK Configurator code itself you should start at the [qmk_configurator](https://github.com/qmk/qmk_configurator) repository.
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# Overview
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# Detailed Description
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QMK Configurator is a [Single Page Application](https://en.wikipedia.org/wiki/Single-page_application) that allows users to create custom keymaps for their QMK-compatible keyboard. They can export JSON representation of their keymaps and compile firmware binaries that can be flashed to their keyboard using a tool like [QMK Toolbox](https://github.com/qmk/qmk_toolbox).
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Configurator gets metadata about keyboards from the Keyboard Metadata store and submits compile requests to the QMK API. The results of those compile requests will be made available on [Digital Ocean Spaces](https://www.digitalocean.com/products/spaces/), an S3-compatible data store.
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## Configurator Frontend
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Address: <https://config.qmk.fm>
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The [Configurator Frontend](https://config.qmk.fm) is compiled into a set of static files that are served by Github Pages. This action happens every time a commit is pushed to the [qmk_configurator `master`](https://github.com/qmk/qmk_configurator) branch. You can view the status of these jobs on the [qmk_configurator actions tab](https://github.com/qmk/qmk_configurator/actions/workflows/build.yml).
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## Keyboard Metadata
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Address: <https://keyboards.qmk.fm>
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The Keyboard Metadata is generated every time a keyboard in [qmk_firmware](https://github.com/qmk/qmk_firmware) changes. The resulting JSON files are uploaded to Spaces and used by Configurator to generate UI for each keyboard. You can view the status of this job on the [qmk_firmware actions tab](https://github.com/qmk/qmk_firmware/actions/workflows/api.yml). If you are a QMK Collaborator you can manually run this job using the `workflow_dispatch` event trigger.
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## QMK API
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Address: <http://api.qmk.fm>
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The QMK API accepts `keymap.json` files for compilation. These are the same files you can use directly with `qmk compile` and `qmk flash`. When a `keymap.json` is submitted the browser will poll the status of the job periodically (every 2 seconds or longer, preferably) until the job has completed. The final status JSON will contain pointers to source and binary downloads for the keymap.
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QMK API always presents the source and binary downloads side-by-side to comply with the GPL.
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There are 3 non-error status responses from the API-
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1. Compile Job Queued
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2. Compile Job Running
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3. Compile Job Finished
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### Compile Job Queued
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This status indicates that the job has not yet been picked up by a [QMK Compiler](#qmk-compiler) node. Configurator shows this status as "Waiting for an oven".
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### Compile Job Running
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This status indicates that the job has started compiling. Configurator shows this status as "Baking".
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### Compile Job Finished
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This status indicates that the job has completed. There will be keys in the status JSON for source and binary downloads.
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## Redis/RQ
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QMK API uses RQ to distribute jobs to the available [QMK Compiler](#qmk-compiler) nodes. When a `keymap.json` is received it's put into the RQ queue, where a `qmk_compiler` node will pick it up from.
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## QMK Compiler
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[QMK Compiler](https://github.com/qmk/qmk_compiler) is what actually performs the compilation of the `keymap.json`. It does so by checking out the requested `qmk_firmware` branch, running `qmk compile keymap.json`, and then uploading the resulting source and binary to Digital Ocean Spaces.
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When users download their source/binary, API will redirect them to the authenticated Spaces download URL.
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