Sample Examples for Jq article - OSFY December '17 Edition
curl -sS https://www.metaweather.com/api/location/search/?query=new Output:
[{"title":"New York","location_type":"City","woeid":2459115,"latt_long":"40.71455,-74.007118"},{"title":"New Delhi","location_type":"City","woeid":28743736,"latt_long":"28.643999,77.091003"},{"title":"New Orleans","location_type":"City","woeid":2458833,"latt_long":"29.953690,-90.077713"},{"title":"Newcastle","location_type":"City","woeid":30079,"latt_long":"54.977940,-1.611620"},{"title":"Newark","location_type":"City","woeid":2459269,"latt_long":"40.731972,-74.174179"}]curl -sS https://www.metaweather.com/api/location/search/?query=new Output:
[
{
"title": "New York",
"location_type": "City",
"woeid": 2459115,
"latt_long": "40.71455,-74.007118"
},
{
"title": "New Delhi",
"location_type": "City",
"woeid": 28743736,
"latt_long": "28.643999,77.091003"
},
{
"title": "New Orleans",
"location_type": "City",
"woeid": 2458833,
"latt_long": "29.953690,-90.077713"
},
{
"title": "Newcastle",
"location_type": "City",
"woeid": 30079,
"latt_long": "54.977940,-1.611620"
},
{
"title": "Newark",
"location_type": "City",
"woeid": 2459269,
"latt_long": "40.731972,-74.174179"
}
]
curl -sS https://www.metaweather.com/api/location/search/?query=new | jq '.[0]'Output:
{
"title": "New York",
"location_type": "City",
"woeid": 2459115,
"latt_long": "40.71455,-74.007118"
}curl -sS https://www.metaweather.com/api/location/search/?query=new | jq '.[] | .title'Output:
"New York"
"New Delhi"
"New Orleans"
"Newcastle"
"Newark"curl -sS https://www.metaweather.com/api/location/search/\?query\=new | jq '.[] | .title,.woeid'Output:
"New York"
2459115
"New Delhi"
28743736
"New Orleans"
2458833
"Newcastle"
30079
"Newark"
2459269curl -sS https://www.metaweather.com/api/location/search/\?query\=new | jq '.[] | "For \(.title) code is \(.woeid)"'Output:
"For New York code is 2459115"
"For New Delhi code is 28743736"
"For New Orleans code is 2458833"
"For Newcastle code is 30079"
"For Newark code is 2459269"
curl -sS https://www.metaweather.com/api/location/search/\?query\=new | jq ' .[] | select(.title == "New Delhi") 'Output:
{
"title": "New Delhi",
"location_type": "City",
"woeid": 28743736,
"latt_long": "28.643999,77.091003"
}curl -sS https://www.metaweather.com/api/location/28743736/ > weather.jsonjq weather.json
JSON data looks like this
{ "consolidated_weather": [{ "id": 5022816248266752, "weather_state_name": "Light Cloud", "weather_state_abbr": "lc", "wind_direction_compass": "E", "created": "2017-11-03T05:37:45.470080Z", "applicable_date": "2017-11-03", "min_temp": 17.765000000000001, "max_temp": 29.662499999999998, "the_temp": 30.475000000000001, "wind_speed": 2.3413782360216335, "wind_direction": 91.235004932380903, "air_pressure": 1009.165, "humidity": 62, "visibility": 13.68570050902728, "predictability": 70 }, { "id": 6148716155109376, "weather_state_name": "Clear", "weather_state_abbr": "c", "wind_direction_compass": "ENE", "created": "2017-11-03T05:37:49.069990Z", "applicable_date": "2017-11-04", "min_temp": 16.75, "max_temp": 29.015000000000001, "the_temp": 28.399999999999999, "wind_speed": 2.563454464002227, "wind_direction": 65.523998048505675, "air_pressure": 1011.425, "humidity": 61, "visibility": 14.176583750894775, "predictability": 68 }, { "id": 5394481511661568, "weather_state_name": "Clear", "weather_state_abbr": "c", "wind_direction_compass": "NE", "created": "2017-11-03T05:37:51.308960Z", "applicable_date": "2017-11-05", "min_temp": 16.147500000000001, "max_temp": 29.145, "the_temp": 28.52, "wind_speed": 1.9995695890022269, "wind_direction": 55.629887662130905, "air_pressure": 1011.23, "humidity": 58, "visibility": 14.884325538853098, "predictability": 68 }, { "id": 5008438039937024, "weather_state_name": "Clear", "weather_state_abbr": "c", "wind_direction_compass": "NNW", "created": "2017-11-03T05:37:54.057620Z", "applicable_date": "2017-11-06", "min_temp": 15.147499999999999, "max_temp": 28.475000000000001, "the_temp": 27.710000000000001, "wind_speed": 2.0043574431380735, "wind_direction": 329.49548535486031, "air_pressure": 1009.39, "humidity": 45, "visibility": 15.533658434741112, "predictability": 68 }, { "id": 5268265844604928, "weather_state_name": "Clear", "weather_state_abbr": "c", "wind_direction_compass": "NE", "created": "2017-11-03T05:37:57.557410Z", "applicable_date": "2017-11-07", "min_temp": 15.094999999999999, "max_temp": 28.572500000000002, "the_temp": 27.359999999999999, "wind_speed": 1.6713582797602005, "wind_direction": 44.360763590360797, "air_pressure": 1008.04, "humidity": 43, "visibility": 15.74368189771733, "predictability": 68 }, { "id": 5077392934567936, "weather_state_name": "Clear", "weather_state_abbr": "c", "wind_direction_compass": "NNW", "created": "2017-11-03T05:37:59.980450Z", "applicable_date": "2017-11-08", "min_temp": 14.282500000000001, "max_temp": 28.142499999999998, "the_temp": 23.460000000000001, "wind_speed": 1.4269034173758584, "wind_direction": 335.43793586699337, "air_pressure": 1002.67, "humidity": 47, "visibility": null, "predictability": 68 }], "time": "2017-11-03T13:51:23.153110+05:30", "sun_rise": "2017-11-03T06:35:02.004695+05:30", "sun_set": "2017-11-03T17:35:00.453452+05:30", "timezone_name": "LMT", "parent": { "title": "India", "location_type": "Country", "woeid": 23424848, "latt_long": "21.786600,82.794762" }, "sources": [{ "title": "BBC", "slug": "bbc", "url": "http://www.bbc.co.uk/weather/", "crawl_rate": 180 }, { "title": "Forecast.io", "slug": "forecast-io", "url": "http://forecast.io/", "crawl_rate": 480 }, { "title": "Met Office", "slug": "met-office", "url": "http://www.metoffice.gov.uk/", "crawl_rate": 180 }, { "title": "OpenWeatherMap", "slug": "openweathermap", "url": "http://openweathermap.org/", "crawl_rate": 360 }, { "title": "World Weather Online", "slug": "world-weather-online", "url": "http://www.worldweatheronline.com/", "crawl_rate": 360 }, { "title": "Yahoo", "slug": "yahoo", "url": "http://weather.yahoo.com/", "crawl_rate": 180 }], "title": "New Delhi", "location_type": "City", "woeid": 28743736, "latt_long": "28.643999,77.091003", "timezone": "Asia/Kolkata" }jq 'range(0;([.sources[]] | length)) as $i | " \(.sources[$i] .title) predicts \(.consolidated_weather[$i] .weather_state_name)"' weather.jsonOutput:
" BBC predicts Light Cloud"
" Forecast.io predicts Clear"
" Met Office predicts Clear"
" OpenWeatherMap predicts Clear"
" World Weather Online predicts Clear"
" Yahoo predicts Clear"filter program
# Formate Date
# This function takes value via Pipe (|) operator
def format_date(x):
x |strptime("%Y-%m-%d") | mktime | strftime("%a - %d, %B");
def print_location:
. | "
Location: \(.title)
Coordinates : \(.latt_long) ";
def print_data:
. | "
------------------------------------------------
| \(format_date(.applicable_date))\t\t |
| Humidity : .\(.humidity)\t\t |
| Weather State: \(.weather_state_name)\t\t\t |
------------------------------------------------";
def process_weather_data:
. | sort_by(.applicable_date)[] | print_data;
. as $root | print_location, (.consolidated_weather | process_weather_data)Run it with
jq -f filter.txt weather.json -rOutput:
Location: New Delhi
Coordinates : 28.643999,77.091003
------------------------------------------------
| Fri - 03, November |
| Humidity : .66 |
| Weather State: Light Cloud |
------------------------------------------------
------------------------------------------------
| Sat - 04, November |
| Humidity : .62 |
| Weather State: Clear |
------------------------------------------------
------------------------------------------------
| Sun - 05, November |
| Humidity : .58 |
| Weather State: Clear |
------------------------------------------------
------------------------------------------------
| Mon - 06, November |
| Humidity : .45 |
| Weather State: Clear |
------------------------------------------------
------------------------------------------------
| Tue - 07, November |
| Humidity : .44 |
| Weather State: Clear |
------------------------------------------------
------------------------------------------------
| Wed - 08, November |
| Humidity : .47 |
| Weather State: Clear |
------------------------------------------------
