Feature: Add bit.ly as a shortening link - 545

libraries/nestjs-libraries/src/short-linking/providers/bitly.ts

@@ -0,0 +1,88 @@
+import { ShortLinking } from '@gitroom/nestjs-libraries/short-linking/short-linking.interface';
+
+const options = {
+  headers: {
+    Authorization: `Bearer ${process.env.BITLY_TOKEN}`,
+    'Content-Type': 'application/json',
+  },
+};
+
+export class Bitly implements ShortLinking {
+  shortLinkDomain = 'bit.ly';
+
+  async linksStatistics(links: string[]) {
+    return Promise.all(
+      links.map(async (link) => {
+        const linkId = link.split('/').pop();
+        const response = await (
+          await fetch(`https://api-ssl.bitly.com/v4/bitlinks/${linkId}`, options)
+        ).json();
+
+        const clicksResponse = await (
+          await fetch(`https://api-ssl.bitly.com/v4/bitlinks/${linkId}/clicks/summary`, options)
+        ).json();
+
+        return {
+          short: link,
+          original: response.long_url,
+          clicks: clicksResponse.total_clicks || 0,
+        };
+      })
+    );
+  }
+
+  async convertLinkToShortLink(id: string, link: string) {
+    return (
+      await (
+        await fetch(`https://api-ssl.bitly.com/v4/shorten`, {
+          ...options,
+          method: 'POST',
+          body: JSON.stringify({
+            long_url: link,
+            group_guid: id,
+            domain: this.shortLinkDomain,
+          }),
+        })
+      ).json()
+    ).link;
+  }
+
+  async convertShortLinkToLink(shortLink: string) {
+    const linkId = shortLink.split('/').pop();
+    const response  = await fetch(`https://api-ssl.bitly.com/v4/bitlinks/${linkId}`, options);
+    const data = await response.json();
+    return data.long_url;
+  }
+
+  async getAllLinksStatistics(
+    groupId: string,
+    page = 1
+  ): Promise<{ short: string; original: string; clicks: string }[]> {
+    const response = await (
+      await fetch(
+        `https://api-ssl.bitly.com/v4/groups/${groupId}/bitlinks?page=${page}&size=100`,
+        options
+      )
+    ).json();
+
+    const mapLinks = await Promise.all(
+      response.links.map(async (link: any) => {
+        const clicksResponse = await (
+          await fetch(`https://api-ssl.bitly.com/v4/bitlinks/${link.id}/clicks/summary`, options)
+        ).json();
+
+        return {
+          short: link.link,
+          original: link.long_url,
+          clicks: clicksResponse.total_clicks || 0,
+        };
+      })
+    );
+
+    if (mapLinks.length < 100) {
+      return mapLinks;
+    }
+
+    return [...mapLinks, ...(await this.getAllLinksStatistics(groupId, page + 1))];
+  }
+}

libraries/nestjs-libraries/src/short-linking/short.link.service.ts

@@ -3,6 +3,7 @@ import { Empty } from '@gitroom/nestjs-libraries/short-linking/providers/empty';
 import { ShortLinking } from '@gitroom/nestjs-libraries/short-linking/short-linking.interface';
 import { Injectable } from '@nestjs/common';
 import { ShortIo } from './providers/short.io';
+import { Bitly } from '@gitroom/nestjs-libraries/short-linking/providers/bitly';
 
 const getProvider = (): ShortLinking => {
   if (process.env.DUB_TOKEN) {
@@ -13,6 +14,10 @@ const getProvider = (): ShortLinking => {
     return new ShortIo();
   }
 
+  if(process.env.BITLY_TOKEN){
+    return new Bitly();
+  }
+
   return new Empty();
 };