MMM-MealViewer

[cowboysdude]

Sam is a REALLY smart guy so he gives you the smart guy answer…
I’m not as smart so I give you my dumb guy answer LOL

It will work either way … so now you def have an answer that works :)

[sdetweil]

@cowboysdude said in MMM-MealViewer:

Sam is a REALLY smart guy so he gives you the smart guy answer

nah, Sam is the LAZY guy… change as LITTLE as possible. especially for folks just starting out

[gonzonia]

Well, thanks to both of you! I can confirm it is finally working.

Now to update github. Someday I should write some documentation too.

[htilburgs]

@cowboysdude, I’m looking for the part where you “change” the XML data to JSON data. I’m trying to write a new MMM, but the data is presented in XML. I like the have it in JSON, so I can use it.

Maybe I read over it, but I cannot figure out where you do this.

[sdetweil]

@htilburgs there are a few xml to json modules

https://www.npmjs.com/package/xml2js

google search
‘nodejs xmltojson’

here is one with a just code, no extra libs

https://davidwalsh.name/convert-xml-json

[htilburgs]

@sdetweil , I’ve found them, but I don’t know how to use it in combination with the URL that creates the XML.

Indeed the last one with no extra libs looks promising. I tried to simply add this in the node_helper.js but getting stuck at how to use it.
I’ve looked into all the MMM Modules but cannot seem to find an example.

[sdetweil]

@htilburgs the url bring back the data with request

request(url, function(err, res, body) {
    // if no error and server was happy
    if(err == null && res.statusCode ==200){
    console.log(body);
    var json_data=this.xmlToJson(body)
    console.log("Speed[0] text is "+json_data.SD[0].SPEED.@attributes.TEXT)
}
});

when the server responds, the function is called and passed the data, body)
and then u would convert it from xml to json . using the last code

var json_data=this.xmlToJson(body)

then the json is accessed with the normal structure notation
(using the sample with the code in the last link)

json_data.SD[0].SPEED.@attributes.TEXT will be ‘1421’

SD is an array (multiple of same xml tags)

a little ugly in the data layour, could get rid of the @attributes thing with a small code change

[htilburgs]

So in my case the URL produces:

image url)

json_data.SD[0].SPEED@attributes.TEXT will be:

json.data.film[0].titel    --> 'Bellicher: Cel'

Correct?

[sdetweil]

@htilburgs correct (json_data is the name of the output variable, note underscore, not dot, using dot means ‘go into’) … if you use one of the module add ons… not the code shown…

[sdetweil]

@htilburgs and the number of films in the array would be

json_data.film.length

using the developers window you can put a code stop on the line after the xml2json
and then u can explore the conversion…

you can also use console.log(JSON.stringify(some_object)) and it will dump the structure in json format