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neelpy · May 1, 2021 · d0385d8 · d0385d8
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diff --git a/.gitattributes b/.gitattributes
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+# Auto detect text files and perform LF normalization
+* text=auto
diff --git a/LICENSE b/LICENSE
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+MIT License
+
+Copyright (c) 2021 Neel Patel
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+# cowin
+ CoWIN Availability
diff --git a/index.html b/index.html
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+<html>
+    <head>
+        <title>CoWIN Availibility</title>
+    </head>
+    <body>
+        <form onsubmit="check()">
+            State: Gujarat, District: Ahmedabad Corporation<br>
+            <label>Date:</label>
+            <input type="number" id="date">
+            Age: <label for="18">18+</label>
+            <input type="radio" id="18" name="age" value="18" checked>
+            <label for="45">45+</label>
+            <input type="radio" id="45" name="age" value="45">
+            <input type="button" value="Fetch Available Centers" onclick="check()">
+        </form>
+        <div id="results">
+
+        </div>
+        <script src="script.js"></script>
+    </body>
+</html>
diff --git a/script.js b/script.js
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+var dateField = document.getElementById('date');
+var age18 = document.getElementById('18');
+var results = document.getElementById('results');
+
+function getDate() {
+    const d = dateField.value;
+    return (d.length === 1 ? '0' : '') +  d + '-05-2021'
+}
+function getAge() {
+    return age18.checked ? 18 : 45;
+}
+
+function get(callback) {
+    var req = new XMLHttpRequest();
+    const district_id = '770';
+    const date = getDate();
+    const url = `https://cdn-api.co-vin.in/api/v2/appointment/sessions/public/calendarByDistrict?district_id=${district_id}&date=${date}`;
+    req.open('GET', url, true);
+    req.responseType = 'json';
+    req.onload = function() {
+        var status = req.status;
+        if (status === 200)
+          callback(null, req.response);
+        else
+          callback(status, req.response);
+      };
+    req.send();
+}
+
+function check() {
+    get((err, res) => {
+        if (err) return alert(`Error: ${err}`)
+        console.log(res);
+        const date = getDate();
+        const age = getAge();
+        console.log(age);
+        const available = res.centers.filter(center => {
+            return center.sessions.some(s => (s.available_capacity > 0 && s.min_age_limit === age))
+        })
+        console.log(available);
+        const template = center => `
+            <div class="center" style="border: 1px solid black">
+                <b>${center.name}, Pincode: ${center.pincode}</b><br>
+                ${center.sessions.filter(s => s.available_capacity > 0).map(s => s.date + ': ' + s.available_capacity).join('<br>')}<br>
+            </div>
+        `;
+        if (available.length === 0)
+            results.innerHTML = 'No 18+ centers available :('
+        results.innerHTML = available.map(c => template(c)).join(' ')
+    })
+}
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		# Auto detect text files and perform LF normalization
		* text=auto