Created
August 31, 2020 14:43
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| const _ = require("lodash"); | |
| const got = require("got"); | |
| const getHourlyForecast = async () => { | |
| const { body } = await got("https://api.climacell.co/v3/weather/forecast/hourly", { | |
| method: "GET", | |
| searchParams: { | |
| lat: process.env.LAT, | |
| lon: process.env.LON, | |
| unit_system: "si", | |
| start_time: "now", | |
| fields: [ | |
| "temp", | |
| "wind_gust:kph", | |
| "wind_speed:kph", | |
| "wind_direction", | |
| "precipitation", | |
| "precipitation_type", | |
| "precipitation_probability", | |
| // "sunset", | |
| ].join(","), | |
| apikey: process.env.CLIMACELL_API_KEY, | |
| }, | |
| responseType: "json", | |
| }); | |
| console.log('body', body) | |
| return body; | |
| }; | |
| const timezoneOptions = { | |
| timeZone: "America/Toronto", | |
| weekday: "long", | |
| hour12: true, | |
| hour: "numeric", | |
| }; | |
| const seeMoreHref = `https://widgets-viewer.climacell.co/v1/viewer.html?apikey=${process.env.CLIMACELL_API_KEY}&type=hourly&locationLon=${process.env.LON}&locationLat=${process.env.LAT}&sizeMode=large&fontColor=%23000&backgroundColor=%23fff&fontFamily=verdana&weatherParams=temp%3AC%2Cprecipitation%3Amm%2Fhr%2Cwind_speed%3Akph%2Chumidity%3A%25%2Ccloud_cover%3A%25&precipitationTimeline=true&sunriseSunset=true` | |
| const go = async () => { | |
| const hourlyForecast = await getHourlyForecast(); | |
| const next24hours = hourlyForecast.slice(0, 50); | |
| let messages = []; | |
| const highWind = next24hours.find( | |
| (forecast) => forecast.wind_gust.value > 30 | |
| ); | |
| const highestWind = _.maxBy(next24hours, (x) => x.wind_gust.value); | |
| if (highWind) { | |
| const windMessage = `Wind gusts of ${Math.round( | |
| highWind.wind_gust.value | |
| )}km/h expected ${new Date( | |
| highWind.observation_time.value | |
| ).toLocaleDateString("en-CA", timezoneOptions)}.`; | |
| messages.push(windMessage); | |
| } | |
| if ( | |
| highWind && | |
| highWind.wind_gust.value !== highestWind.wind_gust.value | |
| ) { | |
| messages.push( | |
| `Reaching ${Math.round(highestWind.wind_gust.value)}km/h ${new Date( | |
| highestWind.observation_time.value | |
| ).toLocaleDateString("en-CA", timezoneOptions)}` | |
| ); | |
| } | |
| const mightPrecipitate = next24hours.find( | |
| (forecast) => forecast.precipitation_probability.value > 50 | |
| ); | |
| if (mightPrecipitate) { | |
| const precipitationMessage = `${ | |
| mightPrecipitate.precipitation_probability.value | |
| }% chance of ${mightPrecipitate.precipitation_type.value} ${new Date( | |
| mightPrecipitate.observation_time.value | |
| ).toLocaleDateString("en-CA", timezoneOptions)}`; | |
| messages.push(precipitationMessage); | |
| } | |
| if (messages.length) { | |
| got(process.env.WEATHER_SLACK_WEBHOOK, { | |
| method: "POST", | |
| body: JSON.stringify({ | |
| username: "天气咋地", | |
| text: messages.join("\n"), | |
| blocks: [ | |
| { | |
| type: 'context', | |
| elements: [ | |
| { | |
| type: "plain_text", | |
| text: messages.join("\n"), | |
| }, | |
| ] | |
| }, | |
| { type: 'actions', elements: [ | |
| { | |
| type: 'button', | |
| text: { | |
| type: "plain_text", | |
| text: "see more" | |
| }, | |
| action_id: 'see more weather', | |
| url: seeMoreHref | |
| } | |
| ]} | |
| ], | |
| icon_emoji: mightPrecipitate | |
| ? ":rain_cloud:" | |
| : highWind | |
| ? ":wind_blowing_face:" | |
| : ":thermometer:", | |
| }), | |
| }); | |
| } | |
| return messages; | |
| }; | |
| exports.endpoint = async (request, response) => { | |
| try { | |
| const messages = await go(); | |
| response.writeHead(200); | |
| response.end(JSON.stringify(messages)); | |
| } catch (e) { | |
| response.writeHead(500); | |
| response.end(e); | |
| } | |
| } |
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