Initial commit

youless-exporter/src/main.ts

@@ -0,0 +1,57 @@
+import * as http from 'http';
+
+const port = 4202;
+const youlessUri = 'http://192.168.2.68/a'
+
+const server = http.createServer((req, res) => {
+
+    http.request(youlessUri, response => {
+        let str = ''
+        response.on('data', function (chunk) {
+            str += chunk;
+        });
+
+        response.on('end', function () {
+            const parser = new Parser(str);
+
+            res.end(parser.toPrometheusFormat())
+        });
+    }).end();
+
+})
+
+server.listen(port)
+
+
+class Parser {
+    public kWhTotal: number = null;
+    public currentPowerWatt: number = null;
+
+    constructor(
+        private input: string
+    ) {
+        this.parse();
+    }
+
+    public toPrometheusFormat(): string {
+        return [
+            `kwh_total ${this.kWhTotal}`,
+            `current_power_watt ${this.currentPowerWatt}`
+            ].join('\n')
+    }
+
+    private parse() {
+        const lines = this.input.split('\n')
+            .map(line => line.trim())
+            .map(line => line.split(' '))
+
+        if (lines.length === 0) {
+            return;
+        }
+
+        this.kWhTotal = parseFloat(lines[0][0]?.replace(',', '.'));
+        this.currentPowerWatt = parseInt(lines[1][0])
+    }
+
+
+}