Use correct url for blocks-extras API - Fix amountShortner pipe

frontend/src/app/shared/pipes/amount-shortener.pipe.ts

@@ -1,22 +1,39 @@
 import { Pipe, PipeTransform } from '@angular/core';
 
+// https://medium.com/@thunderroid/angular-short-number-suffix-pipe-1k-2m-3b-dded4af82fb4
+
 @Pipe({
   name: 'amountShortener'
 })
 export class AmountShortenerPipe implements PipeTransform {
-  transform(num: number, ...args: number[]): unknown {
-    const digits = args[0] || 1;
-    const lookup = [
-      { value: 1, symbol: '' },
-      { value: 1e3, symbol: 'k' },
-      { value: 1e6, symbol: 'M' },
-      { value: 1e9, symbol: 'G' },
-      { value: 1e12, symbol: 'T' },
-      { value: 1e15, symbol: 'P' },
-      { value: 1e18, symbol: 'E' }
+  transform(number: number, args?: any): any {
+    if (isNaN(number)) return null; // will only work value is a number
+    if (number === null) return null;
+    if (number === 0) return null;
+    let abs = Math.abs(number);
+    const rounder = Math.pow(10, 1);
+    const isNegative = number < 0; // will also work for Negetive numbers
+    let key = '';
+
+    const powers = [
+      { key: 'E', value: 10e18 },
+      { key: 'P', value: 10e15 },
+      { key: 'T', value: 10e12 },
+      { key: 'B', value: 10e9 },
+      { key: 'M', value: 10e6 },
+      { key: 'K', value: 1000 }
     ];
-    const rx = /\.0+$|(\.[0-9]*[1-9])0+$/;
-    var item = lookup.slice().reverse().find((item) => num >= item.value);
-    return item ? (num / item.value).toFixed(digits).replace(rx, '$1') + item.symbol : '0';
+
+    for (let i = 0; i < powers.length; i++) {
+      let reduced = abs / powers[i].value;
+      reduced = Math.round(reduced * rounder) / rounder;
+      if (reduced >= 1) {
+        abs = reduced;
+        key = powers[i].key;
+        break;
+      }
+    }
+
+    return (isNegative ? '-' : '') + abs + key;
   }
-}
+}