Changing MMM-Traffic into using TomTom API

[rxlDavid]

Hi Guys,
Since the Mapbox API is very inaccurate in my region, I want to use the TomTom API.
I am completely new to developing modules, so I am trying to change an existing one.
I tried it with this one: MMM-Traffic

The first thing I change is the API Link, for the first tests, I removed the vars from the Link and replaced them with a static API request.
Another thing I changed was the

self.duration = Math.round(json.routes[0].duration / 60);

into:

self.duration = Math.round(json.routes[0].travelTimeInSeconds / 60);

I uploaded an extinct of the API Return here

But after the changes, the Modules just shows its “Loading” Phrase, so I guess I missed something.

I would appreciate any type of help and I will provide further information if needed :)

[sdetweil]

@rxldavid the data is not the same from the two apis…

so, you either have to change EVERYTHING that touches the data OR, after receiving change the layout to match the old format.

json is pretty nice to work with …

use the validator here https://codebeautify.org/jsonvalidator?/jsonvalidate
click the top left button and it will format the data in a nice readable format

loading… is the initial message, til the actual data arrives…
so, the data didn’t arrive

I assume that the request for the data is done in the node_helper

u can write messages to the console and see them in the window where u start MM

during development, use npm start >somefile.txt

and then u can see all the messages in somefile.txt

I use ssh connection to pi, so I can edit on my desktop
when using windows desktop i use bitvise ssh client or winscp
as they provide a networked disk page like file explorer so I can just doubleclick to edit,

when using linux, most of the file browsers will allow access to ssh connected systems the same way…

[rxlDavid]

@sdetweil
hi,
I changed the API Return, there is an option to get it back in JSON.
What do you mean with write message to the console? & where/when should I execute “npm start >somefile.txt”

[sdetweil]

@rxldavid

write message to console
console,log(“some message”+variable+…)

[sdetweil]

@rxldavid u probably use pm2, so

pm2 stop all

then

cd ~/MagicMirror

then u can

npm start >somefile.txt

ctrl-c to end

repeat til working

[sdetweil]

@rxldavid the json data u posted is not valid… something is missing after the trailing comma

[rxlDavid]

@sdetweil
I know, it was just an extinct, since it used private Data,
I updated it to the full return with random Data

[sdetweil]

@rxldavid if u put it thru the formatter

{
  "formatVersion": "0.0.12",
  "routes": [
    {
      "summary": {
        "lengthInMeters": 1147,
        "travelTimeInSeconds": 140,
        "trafficDelayInSeconds": 0,
        "trafficLengthInMeters": 0,
        "departureTime": "2021-09-19T17:16:54+02:00",
        "arrivalTime": "2021-09-19T17:19:14+02:00"
      },
      "legs": [
        {
          "summary": {
            "lengthInMeters": 1147,
            "travelTimeInSeconds": 140,
            "trafficDelayInSeconds": 0,
            "trafficLengthInMeters": 0,
            "departureTime": "2021-09-19T17:16:54+02:00",
            "arrivalTime": "2021-09-19T17:19:14+02:00"
          },
          "points": [
            {
              "latitude": 52.5093,
              "longitude": 13.42937
            },
            {
              "latitude": 52.50904,
              "longitude": 13.42913
            },
            {
              "latitude": 52.50895,
              "longitude": 13.42904
            },
            {
              "latitude": 52.50868,
              "longitude": 13.4288
            },
            {
              "latitude": 52.5084,
              "longitude": 13.42857
            },
            {
              "latitude": 52.50816,
              "longitude": 13.42839
            },
            {
              "latitude": 52.50791,
              "longitude": 13.42825
            },
            {
              "latitude": 52.50757,
              "longitude": 13.42772
            },
            {
              "latitude": 52.50752,
              "longitude": 13.42785
            },
            {
              "latitude": 52.50742,
              "longitude": 13.42809
            },
            {
              "latitude": 52.50735,
              "longitude": 13.42824
            },
            {
              "latitude": 52.5073,
              "longitude": 13.42837
            },
            {
              "latitude": 52.50696,
              "longitude": 13.4291
            },
            {
              "latitude": 52.50673,
              "longitude": 13.42961
            },
            {
              "latitude": 52.50619,
              "longitude": 13.43092
            },
            {
              "latitude": 52.50608,
              "longitude": 13.43116
            },
            {
              "latitude": 52.50574,
              "longitude": 13.43195
            },
            {
              "latitude": 52.50564,
              "longitude": 13.43218
            },
            {
              "latitude": 52.50528,
              "longitude": 13.43299
            },
            {
              "latitude": 52.50513,
              "longitude": 13.43336
            },
            {
              "latitude": 52.505,
              "longitude": 13.43366
            },
            {
              "latitude": 52.50464,
              "longitude": 13.43451
            },
            {
              "latitude": 52.50451,
              "longitude": 13.43482
            },
            {
              "latitude": 52.50444,
              "longitude": 13.43499
            },
            {
              "latitude": 52.50418,
              "longitude": 13.43564
            },
            {
              "latitude": 52.50364,
              "longitude": 13.4369
            },
            {
              "latitude": 52.50343,
              "longitude": 13.43738
            },
            {
              "latitude": 52.5033,
              "longitude": 13.43767
            },
            {
              "latitude": 52.50275,
              "longitude": 13.43873
            }
          ]
        }
      ],
      "sections": [
        {
          "startPointIndex": 0,
          "endPointIndex": 28,
          "sectionType": "TRAVEL_MODE",
          "travelMode": "car"
        }
      ]
    }
  ]
}

[rxlDavid]

@sdetweil
this is also the view Tomtom provided me.
but I don’t get what I need to change.
right now I got the following error in the console:
[19.09.2021 17:22.10.688] [ERROR] Failed to fetch git data for MMM-Traffic: Erro r: block timeout reached

[sdetweil]

@rxldavid that is from the updateNotifcation module which has a bug … fixed in next release

after u got the data, then what did u do?