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Kalliopé, what time is it in …

Posted on 2017-03-19

Introduction

When you work with multiple country and different timezone, you're always wondering what time it is there… And I was fed up to keep opening a tab in a browser to find out again and again.

So I decided to create a kalliopé neuron to be able to ask kalliopé[1] what time it is in any city / country :) and I create the [wwtime neuron]https://github.com/bacardi55/kalliope-wwtime([2]) to do so!

1: https://kalliope-project.github.io/

2: https://github.com/bacardi55/kalliope-wwtime(

How

Getting timezone for address

This neuron will retrieve a local timezone and a requested city timezone. It compares timezone difference (including summer time) between the two location to give you the time there based on your timezone.

Eg:

I am in Paris (GMT +1)
I want to know Boston time (GMT -5 - and as of now - summer time (so 1 additional hour))

When it's 10pm in Paris, Kalliope will tell me it is 5pm in Boston (because as of now, boston is in summer time and paris not yet, so -5 and not -6)

It uses GoogleMaps API to get geolocation data based on a city name or address. So you need to activate to Google API:

Google Maps Time Zone API[3]
Google Maps Geocoding API[4]

To make it works, you will need to get an API key on your developer console[5]. Or follow documentation here[6] and here[7]

3: https://developers.google.com/maps/documentation/timezone/intro

4: https://developers.google.com/maps/documentation/geocoding/intro

5: https://console.developers.google.com/apis/dashboard

6: https://developers.google.com/maps/documentation/geocoding/get-api-key

7: https://developers.google.com/maps/documentation/timezone/get-api-key

Installation

  kalliope install --git-url https://github.com/bacardi55/kalliope-wwtimes.git

Options

┌───────────────┬──────────┬─────────┬─────────┬───────────────────────────────┐
│   parameter   │ required │ default │ choices │            comment            │
╞═══════════════╪══════════╪═════════╪═════════╪═══════════════════════════════╡
│ gmaps_api_key │ yes      │         │ string  │ The api key to use googlemaps │
│               │          │         │         │ API. See above.               │
├───────────────┼──────────┼─────────┼─────────┼───────────────────────────────┤
│ local         │ yes      │         │ string  │ Your city/address to compare  │
│               │          │         │         │ time difference with          │
├───────────────┼──────────┼─────────┼─────────┼───────────────────────────────┤
│ city          │ yes      │         │ string  │ What city/address where you   │
│               │          │         │         │ want to know time             │
└───────────────┴──────────┴─────────┴─────────┴───────────────────────────────┘

Return Values

┌────────┬─────────────────────┬────────┬──────────────────────────────────────┐
│  Name  │     Description     │  Type  │                sample                │
╞════════╪═════════════════════╪════════╪══════════════════════════════════════╡
│ status │ Response status     │ String │ OK or KO                             │
├────────┼─────────────────────┼────────┼──────────────────────────────────────┤
│        │                     │        │ [arg: 'new york city', 'timezoneid': │
│ city   │ A dict¹ (see below) │ dict   │ 'America/New_York', 'timezonename':  │
│        │                     │        │ 'Eastern Daylight Time', time:       │
│        │                     │        │ {'hour': '10', 'minute': '30'}]      │
├────────┼─────────────────────┼────────┼──────────────────────────────────────┤
│        │                     │        │ [arg: 'Paris France', 'timezoneid':  │
│        │                     │        │ 'Europe/Paris', 'timezonename':      │
│ local  │ A dict¹ (see below) │ dict   │ 'Central European Standard Time',    │
│        │                     │        │ time: {'hour': '10', 'minute':       │
│        │                     │        │ '30'}]                               │
└────────┴─────────────────────┴────────┴──────────────────────────────────────┘

¹: these dict contains:

arg: The given name in arguments (equals 'local' argument for local return variable or 'city' arguments for city return variable)
timezoneid: The ID of the timezone, eg: Europe/Paris
timezonename: The name of the timezone eg: Central European Standard Time
time, a dict containing 'hour' and 'minutes'

Synapses example

brains

Get a city by argument in order

  - name: "Wwtime-city"
    signals:
      - order: "what time is it in {{city}}"
    neurons:
      - wwtime:
          gmaps_api_key: "{{gmaps_api_key}}"
          local: "Paris France"
          args:
            - city
          file_template: "templates/fr_wwtime.j2"

Get a city by argument set in brain:

  - name: "Wwtime-city-boton"
    signals:
      - order: "heure boston"
    neurons:
      - wwtime:
          gmaps_api_key: "{{gmaps_api_key}}"
          city: "boston MA"
          local: "Paris France"
          file_template: "templates/fr_wwtime.j2"

template

  {% raw %}
  {% if status == "OK" %}
      Sir, in {{city.arg}}, it is {{city.time.hour}} hour and {{city.time.minute}} minutes, whereas here, it's {{local.time.hour}} hour and {{local.time.minute}} minutes
      Le timezone est {{city.timezonename}}
  {% else %}
      Sorry sir, but I don't know
  {% endif %}
  {% endraw %}

see more example in the sample directory

/gemlog/

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