promises, and such

app-promise.js

@@ -0,0 +1,47 @@
+const yargs = require('yargs');
+const axios = require('axios');
+
+const credentials = require("./credentials")
+
+const argv = yargs
+  .options({
+    a: {
+      demand: true,
+      alias: 'address',
+      describe: "Address to fetch weather for.",
+      string: true
+    }
+  })
+  .help()
+  .alias('help', 'h')
+  .argv;
+
+var encodedAddress = encodeURIComponent(argv.address);
+var geocodeUrl = `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}&key=${credentials.GOOGLE_API_KEY}`;
+
+axios.get(geocodeUrl).then((response) => {
+  if (response.data.status === "ZERO_RESULTS") {
+    throw new Error('Unable to find that Address.')
+  } else if (response.data.status === 'REQUEST_DENIED'){
+    throw new Error(`API Request Denied: ${response.data.error_message}`);
+  }
+  var lat = response.data.results[0].geometry.location.lat;
+  var lng = response.data.results[0].geometry.location.lng;
+  console.log(response.data.results[0].formatted_address);
+  var weatherUrl = `https://api.darksky.net/forecast/${API_KEY}/${lat},${lng}`;
+  return axios.get(weatherUrl);
+}).then((response) => {
+  var temperature = response.data.currently.temperature;
+  var apparentTemperature = response.data.currently.apparentTemperature;
+  console.log(`It's currently: ${temperature}. It feels like ${apparentTemperature}`);
+})
+.catch((e) => {
+  if (e.code === 'ENOTFOUND') {
+    console.log("Unable to connect to API servers");
+  } else {
+    console.log(e.message);
+  }
+})
+
+
+console.log("Powered By https://darksky.net/poweredby/");

app.js

@@ -35,4 +35,3 @@ geocode.geocodeAddress(argv.address, (errorMessage, results) => {
 
 
 console.log("Powered By https://darksky.net/poweredby/");
-// ae8dd4c9c3a690289fd7cfe125f50e84

credentials.js

@@ -0,0 +1,7 @@
+var GOOGLE_API_KEY = process.env.GOOGLE_API_KEY;
+var DARKSKY_API_KEY = process.env.DARKSKY_API_KEY;
+
+module.exports = {
+  GOOGLE_API_KEY,
+  DARKSKY_API_KEY
+}

package-lock.json

@@ -45,6 +45,14 @@
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
       "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4="
     },
+    "axios": {
+      "version": "0.13.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.13.1.tgz",
+      "integrity": "sha1-Pmer/kMzvJ0tX+b70TtGlOr8jfg=",
+      "requires": {
+        "follow-redirects": "0.0.7"
+      }
+    },
     "bcrypt-pbkdf": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
@@ -136,6 +144,14 @@
         "assert-plus": "1.0.0"
       }
     },
+    "debug": {
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
     "decamelize": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
@@ -192,6 +208,15 @@
         "pinkie-promise": "2.0.1"
       }
     },
+    "follow-redirects": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-0.0.7.tgz",
+      "integrity": "sha1-NLkLqyqRGqNHVx2pDyK9NuzYqRk=",
+      "requires": {
+        "debug": "2.6.9",
+        "stream-consume": "0.1.0"
+      }
+    },
     "forever-agent": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
@@ -381,6 +406,11 @@
         "mime-db": "1.30.0"
       }
     },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
     "normalize-package-data": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/normalize-package-data/-/normalize-package-data-2.4.0.tgz",
@@ -583,6 +613,11 @@
         "tweetnacl": "0.14.5"
       }
     },
+    "stream-consume": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/stream-consume/-/stream-consume-0.1.0.tgz",
+      "integrity": "sha1-pB6tGm1ggc63n2WwYZAbbY89HQ8="
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",

package.json

@@ -10,6 +10,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "axios": "^0.13.1",
     "request": "^2.83.0",
     "yargs": "^4.8.1"
   }

playground/promise.js

@@ -0,0 +1,36 @@
+var asyncAdd = (a, b) => {
+  return new Promise((resolve, reject) => {
+    setTimeout(() => {
+      if (typeof a === 'number' && typeof b === 'number'){
+        resolve(a + b);
+      } else {
+        reject("Arguments must be numbers");
+      }
+    }, 500);
+
+  })
+}
+//
+//
+// var somePromise = new Promise((resolve, reject) => {
+//   setTimeout(() => {
+//     // resolve("Hey, It worked!");
+//     reject("FAILED BRUH");
+//   }, 500);
+// });
+//
+// somePromise.then((message) => {
+//   console.log("Success:", message);
+// },
+// (errorMessage) => {
+//   console.log("Error:", errorMessage);
+// })
+
+
+asyncAdd(1, 2).then((res) => {
+  return asyncAdd(res, 33);
+}).then((res) => {
+  console.log("Should be 36", res);
+}).catch((errorMessage) => {
+  console.log(errorMessage);
+})

playground/promise2.js

@@ -0,0 +1,29 @@
+const request = require('request')
+
+var geocodeAddress = (address) => {
+    return new Promise((resolve, reject) => {
+      var encodedAddress = encodeURIComponent(address);
+      request({
+        url: `https://maps.googleapis.com/maps/api/geocode/json?address=${encodedAddress}`,
+        json: true
+      }, (error, response, body) => {
+        if (error) {
+          reject("Unable to connect to Google Servers.");
+        } else if (body.status === "ZERO_RESULTS"){
+          reject("Unable to find that Address.");
+        } else if (body.status === "OK"){
+          resolve({
+            address: body.results[0].formatted_address,
+            latitude: body.results[0].geometry.location.lat,
+            longitude: body.results[0].geometry.location.lng
+          });
+        }
+      });
+    })
+};
+
+geocodeAddress(19146).then((location) => {
+  console.log(JSON.stringify(location, null, 2));
+}, (errorMessage) => {
+  console.log(errorMessage);
+})