obsidian-paste-plugin/main.ts

import { App, Editor, MarkdownView, Modal, Notice, Plugin, PluginSettingTab, Setting } from 'obsidian';

// Remember to rename these classes and interfaces!

interface MyPluginSettings {
	mySetting: string;
}

const DEFAULT_SETTINGS: MyPluginSettings = {
	mySetting: 'default'
}

export default class MyPlugin extends Plugin {
	settings: MyPluginSettings;

	async onload() {
		await this.loadSettings();
		this.registerEvent(
			this.app.workspace.on("file-menu", (menu, file) => {
			  menu.addItem((item) => {
				item
				  .setTitle("New Paste")
				  .setIcon("document")
				  .onClick(async () => {
					this.createpaste();
				  });
			  });
			})
		  );
		this.addCommand({
		id: "new-paste",
		name: "Create a new paste",
		callback: () => {
			this.createpaste();
		},
		});
	}

	async createpaste(): Promise<void> {
		const { vault } = this.app;
		var result           = '';
		var characters       = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
		var charactersLength = characters.length;
		for ( var i = 0; i < 6; i++ ) {
			result += characters.charAt(Math.floor(Math.random() * charactersLength));
		}
		const File = await vault.create("paste/"+result+".md", '');
		let leaf = this.app.workspace.getLeaf(false);
		await leaf.openFile(File);
	}

	onunload() {

	}

	async loadSettings() {
		this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());
	}

	async saveSettings() {
		await this.saveData(this.settings);
	}
}