Added npm command

src/commands/mdn.ts

@@ -0,0 +1,54 @@
+import { Message } from 'eris';
+import axios from 'axios';
+import { Client, Command, RichEmbed } from '../class';
+
+export default class Npm extends Command {
+  constructor(client: Client) {
+    super(client);
+    this.name = 'npm';
+    this.description = 'Get information about npm modules.';
+    this.usage = 'npm <module name>';
+    this.permissions = 0;
+    this.guildOnly = false;
+    this.enabled = true;
+  }
+
+  public async run(message: Message, args: string[]) {
+    try {
+      if (!args[0]) return this.error(message.channel, 'You need to specify a module name.');
+
+      const res = await axios.get(`https://registry.npmjs.com/${args[0]}`, { validateStatus: (_) => true });
+
+      if (res.status == 404) this.error(message.channel, 'Could not find the library, try something else.');
+
+      const { data } = res;
+
+      const bugs: string = data.bugs.url || '';
+      const description: string = data.description || 'None';
+      const version: string = data['dist-tags'].latest || 'Unknown';
+      const homepage: string = data.homepage || '';
+      const license: string = data.license || 'None';
+      const dependencies: string = Object.keys(data.versions[version].dependencies).join(', ') || 'None';
+      const name: string = data.name || 'None';
+      const repository: string = bugs.replace('/issues', '') || '';
+      const creation: string = data.time.created ? new Date(data.time.created).toLocaleString('en') : 'None';
+      const modification: string = data.time.modified ? new Date(data.time.modified).toLocaleString('en') : 'None';
+
+      const embed = new RichEmbed();
+      embed.setColor(0xCC3534);
+      embed.setAuthor('NPM', 'https://i.imgur.com/ErKf5Y0.png', 'https://www.npmjs.com/');
+      embed.setDescription(`[NPM](https://www.npmjs.com/package/${args[0]}) | [Homepage](${homepage}) | [Repository](${repository}) | [Bugs](${bugs})`);
+      embed.addField('Name', name, true);
+      embed.addField('Latest version', version, true);
+      embed.addField('License', license, true);
+      embed.addField('Description', description, false);
+      embed.addField('Dependencies', dependencies, false);
+      embed.addField('Creation Date', creation, true);
+      embed.addField('Modification Date', modification, true);
+
+      return message.channel.createMessage({ embed });
+    } catch (err) {
+      return this.client.util.handleError(err, message, this);
+    }
+  }
+}