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https://github.com/Tuxdiver/MMM-Rest

MagicMirror² addon for fetching REST data and displaying it on the mirror
https://github.com/Tuxdiver/MMM-Rest

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MagicMirror² addon for fetching REST data and displaying it on the mirror

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# Module: MMM-Rest

The `MMM-Rest` module is a [MagicMirror²](https://github.com/MagicMirrorOrg/MagicMirror) addon.
This module collects data via HTTP calls and displays it on your mirror in a table.

![Rest Displays](screenshot.png)

## Installation

1. Navigate into your MagicMirror's `modules` folder and execute `git clone https://github.com/Tuxdiver/MMM-Rest`
2. cd `cd MMM-Rest`
3. Execute `npm install` to install the node dependencies.

## Changelog

- 2016-10-27: incompatible changes: the "suffix" and "digits" parameters are removed and replaced by a "format" parameter! Please check your config!
- 2018-02-02: added ranges to format parameter
- 2024-03-21: added the ability to place multiple instances of the module into config files
- 2024-03-22: Added the ability to specify and customize display of DateTime objects
- 2024-03-22: Added the ability to transform REST results before displaying
- 2024-05-06: Added new optional variable `forceAlign` for more customizable alignment

## Using the module

To use this module, add it to the modules array in the `config/config.js` file:

````javascript
modules: [
{
module: 'MMM-Rest',
position: 'bottom_right', // This can be any of the regions.
// Best results in one of the side regions like: top_left
config: {
debug: false,
forceAlign: false,
mappings: {
on_off: {
true: 'on',
false: 'off',
},
temperature: {
1: 'cold',
2: 'warm',
3: 'HOT',
},
},
sections: [
{
format: '%.1f',
url: 'https://www.dirk-melchers.de/echo.php?text=22.54',
},
{
format: [
{ range: [, 10], format: '%d'},
{ range: [10, 20], format: '%d'},
{ range: [30, ], format: '%d'},
{ string: 'HOT', format: '%d'},
{ format: '%d'}
],
url: 'https://www.dirk-melchers.de/echo.php?text=59.1',
},
{
format: '%s',
mapping: 'temperature',
url: 'https://www.dirk-melchers.de/echo.php?text=2',
},
{
format: '%d',
url: 'https://www.dirk-melchers.de/echo.php?text=62.1',
},
{
format: 'Lights %s',
mapping: 'on_off',
url: 'https://www.dirk-melchers.de/echo.php?text=true',
},
{
format: [
{ dateOptions: { weekday: 'long', month: 'long', day: 'numeric', hour: 'numeric', minute: '2-digit', hour12: true }, format: '%s'},
],
url: 'https://www.dirk-melchers.de/echo.php?text=2024-03-22T00:11:05.000+0000',
},
{
format: [
{ range: [, 1000], format: '%d W'},
{ range: [1000, 1000000], format: '%.1f kW', transform: 'value/1000'}
{ format: '%.1f MW', transform: 'value/1000000'}
],
url: 'https://www.dirk-melchers.de/echo.php?text=10005',
},
],
output: [
['Livingroom','@1','@2'],
['Kitchen','@3','@4'],
['Fridge','@5'],
['Last Updated','@6'],
['Solar Production','@7'],
],
},
}
]
````

## Configuration options

The following properties can be configured:




Option
Description




sections
sections is an array of hashes for the REST endpoints to connect to




Option
Description




format
- If it is a string: sprintf() format

- Could also be an array of hashes. The array is processed from top to bottom and first match wins.

The last entry could be a default without "range". Leaving one value of the range empty means

"ignore this bound".

- You could use "string" instead of "range" to match the value against the parameter of the string.

- Finally, you could use "dateOptions" instead of "range" or "string" to specify that the expected

value is an ISO 8601 DateTime object (may work for other date formats as well, as long as

the javascript function `new Date()` takes that format), and describe what format you want the

date displayed in. Formatting options described here

https://stackoverflow.com/questions/3552461/how-do-i-format-a-date-in-javascript.

- You may also add a `transform` function to convert the value before displaying it. Use a string that

is a common mathematical function with the value of the raw REST data is `value`. E.g., `value/1000`

will divide the raw value by 1000 before displaying. Useful for converting units. Note: transform

happens after any range is matched.



mapping
Map the value againt a defined mapping


url
The url to call. It has to return a single integer / floating point value






mappings
mappings is an hash of hashes for the mapping of values to other values




Option
Description




NAME_OF_MAPPING
Name of mapping will be referenced by sections -> mapping


values
hash of key / values to map from / to






output
control the output table for the display.
Has to be a 2-dimensional array representing the rows and the columns
of the output

A cell containing a '@' followed by a number represents the section id (starting by 1) of the REST Urls



updateInterval
How often this refreshes


Example: 60000

Default value: 60000



initialLoadDelay
How long to wait for the first load


Example: 60000

Default value: 0



animationSpeed
Fadeover effect for dom updates


Example: 1000

Default value: 2000



forceAlign
Boolean. Describes the alignment behavior of the table

false will align description cells to the left and variable cells (e.g., @1) to the right.

true will align all cells in the leftmost column to the left and all other cells to the right.



Default value: false



debug
Log messages to Log.info / console


Example: true

Default value: false