feat(chats): Added timer to delete old deleted chat and post database models

feat(nostr): Added new route for deleteChat and deletePost models

src/adapters/localdb/index.js

@@ -9,6 +9,8 @@ import Order from './models/order.js'
 import Offer from './models/offer.js'
 import Usage from './models/usage.js'
 import SmAccount from './models/smAccount.js'
+import DeletedChat from './models/deletedChat.js'
+import DeletedPost from './models/deletedPost.js'
 
 class LocalDB {
   constructor () {
@@ -19,6 +21,8 @@ class LocalDB {
     this.Offer = Offer
     this.Usage = Usage
     this.SmAccount = SmAccount
+    this.DeletedChat = DeletedChat
+    this.DeletedPost = DeletedPost
   }
 }
 

src/controllers/rest-api/index.js

@@ -19,6 +19,7 @@ import OrderRouter from './order/index.js'
 import P2WDBRouter from './p2wdb/index.js'
 import UsageRESTController from './usage/index.js'
 import SmAccountRouter from './smAccount/index.js'
+import NostrRouter from './nostr/index.js'
 
 class RESTControllers {
   constructor (localConfig = {}) {
@@ -90,6 +91,10 @@ class RESTControllers {
 
     const smAccountRouter = new SmAccountRouter(dependencies)
     smAccountRouter.attach(app)
+
+    // Attach the REST API Controllers associated with the /nostr route
+    const nostrRouter = new NostrRouter(dependencies)
+    nostrRouter.attach(app)
   }
 }
 

src/controllers/rest-api/nostr/controller.js

@@ -0,0 +1,219 @@
+/*
+  REST API Controller library for the /nostr route
+*/
+import wlogger from '../../../adapters/wlogger.js'
+
+class NostrRESTControllerLib {
+  constructor (localConfig = {}) {
+    // Dependency Injection.
+    this.adapters = localConfig.adapters
+    if (!this.adapters) {
+      throw new Error(
+        'Instance of Adapters library required when instantiating /nostr REST Controller.'
+      )
+    }
+    this.useCases = localConfig.useCases
+    if (!this.useCases) {
+      throw new Error(
+        'Instance of Use Cases library required when instantiating /nostr REST Controller.'
+      )
+    }
+
+    this.createDeletedChat = this.createDeletedChat.bind(this)
+    this.getDeletedChats = this.getDeletedChats.bind(this)
+    this.createDeletedPost = this.createDeletedPost.bind(this)
+    this.getDeletedPosts = this.getDeletedPosts.bind(this)
+    this.handleError = this.handleError.bind(this)
+  }
+
+  /**
+   * @api {post} /nostr/deletedChat Create Deleted Chat.
+   * @apiPermission admin
+   * @apiName CreateDeletedChat
+   * @apiGroup REST Nostr
+   *
+   * @apiExample Example usage:
+   * curl -H "Content-Type: application/json" -H "Authorization: Bearer <token>" -X POST -d '{"eventId": "note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q" , "npub" : "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8" , "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a", "pubkey":"6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1"}' localhost:5700/nostr/deletedChat
+   *
+   * @apiSuccess {String} _id DB Model id
+   * @apiSuccess {String} eventId Event id
+   * @apiSuccess {String} bchAddr BCH Address
+   * @apiSuccess {String} npub Nostr Npub
+   * @apiSuccess {String} pubkey Nostr pubkey
+   * @apiSuccess {Date} createdAt Created at date.
+   * @apiSuccess {Date} updatedAt Updated at date.
+   *
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *     HTTP/1.1 200 OK
+   *     {
+   *       "_id": "6900f87f9cafee38028ea27e",
+   *       "npub": "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8",
+   *       "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a",
+   *       "pubKey": "6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1",
+   *       "createdAt":"2025-10-28T17:08:15.409Z",
+   *       "updatedAt": "2025-10-28T17:08:15.409Z"
+   *     }
+   *
+   * @apiUse TokenError
+   */
+  async createDeletedChat (ctx) {
+    try {
+      const chat = ctx.request.body
+
+      const result = await this.useCases.nostr.createDeletedChat(chat)
+
+      ctx.body = {
+        deletedChat: result
+      }
+    } catch (err) {
+      wlogger.error('Error in createDeletedChat() REST API handler.')
+      this.handleError(ctx, err)
+    }
+  }
+
+  /**
+   * @api {get} /nostr/deletedChat Get Deleted Chats.
+   * @apiPermission public
+   * @apiName GetDeletedChats
+   * @apiGroup REST Nostr
+   *
+   * @apiExample Example usage:
+   * curl -H "Content-Type: application/json" -X GET localhost:5700/nostr/deletedChat
+   *
+   * @apiSuccess {String} _id DB Model id
+   * @apiSuccess {String} eventId Event id
+   * @apiSuccess {String} bchAddr BCH Address
+   * @apiSuccess {String} npub Nostr Npub
+   * @apiSuccess {String} pubkey Nostr pubkey
+   * @apiSuccess {Date} createdAt Created at date.
+   * @apiSuccess {Date} updatedAt Updated at date.
+   *
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *     HTTP/1.1 200 OK
+   *     [{
+   *       "_id": "6900f87f9cafee38028ea27e",
+   *       "npub": "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8",
+   *       "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a",
+   *       "pubKey": "6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1",
+   *       "createdAt":"2025-10-28T17:08:15.409Z",
+   *       "updatedAt": "2025-10-28T17:08:15.409Z"
+   *     }]
+   *
+   * */
+  async getDeletedChats (ctx) {
+    try {
+      const deletedChats = await this.useCases.nostr.getDeletedChats()
+
+      ctx.body = { deletedChats }
+    } catch (err) {
+      wlogger.error('Error in getDeletedChats() REST API handler.')
+      this.handleError(ctx, err)
+    }
+  }
+
+  /**
+   * @api {post} /nostr/deletedPost Create Deleted Post.
+   * @apiPermission admin
+   * @apiName CreateDeletedPost
+   * @apiGroup REST Nostr
+   *
+   * @apiExample Example usage:
+   * curl -H "Content-Type: application/json" -H "Authorization: Bearer <token>" -X POST -d '{"eventId": "note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q" , "npub" : "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8" , "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a", "pubkey":"6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1"}' localhost:5700/nostr/deletedPost
+   *
+   * @apiSuccess {String} _id DB Model id
+   * @apiSuccess {String} eventId Event id
+   * @apiSuccess {String} bchAddr BCH Address
+   * @apiSuccess {String} npub Nostr Npub
+   * @apiSuccess {String} pubkey Nostr pubkey
+   * @apiSuccess {Date} createdAt Created at date.
+   * @apiSuccess {Date} updatedAt Updated at date.
+   *
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *     HTTP/1.1 200 OK
+   *     {
+   *       "_id": "6900f87f9cafee38028ea27e",
+   *       "npub": "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8",
+   *       "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a",
+   *       "pubKey": "6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1",
+   *       "createdAt":"2025-10-28T17:08:15.409Z",
+   *       "updatedAt": "2025-10-28T17:08:15.409Z"
+   *     }
+   *
+   * @apiUse TokenError
+   */
+  async createDeletedPost (ctx) {
+    try {
+      const post = ctx.request.body
+
+      const result = await this.useCases.nostr.createDeletedPost(post)
+
+      ctx.body = {
+        deletedPost: result
+      }
+    } catch (err) {
+      wlogger.error('Error in createDeletedPost() REST API handler.')
+      this.handleError(ctx, err)
+    }
+  }
+
+  /**
+   * @api {get} /nostr/deletedPost Get Deleted Posts.
+   * @apiPermission public
+   * @apiName GetDeletedPosts
+   * @apiGroup REST Nostr
+   *
+   * @apiExample Example usage:
+   * curl -H "Content-Type: application/json" -X GET localhost:5700/nostr/deletedPost
+   *
+   * @apiSuccess {String} _id DB Model id
+   * @apiSuccess {String} eventId Event id
+   * @apiSuccess {String} bchAddr BCH Address
+   * @apiSuccess {String} npub Nostr Npub
+   * @apiSuccess {String} pubkey Nostr pubkey
+   * @apiSuccess {Date} createdAt Created at date.
+   * @apiSuccess {Date} updatedAt Updated at date.
+   *
+   *
+   * @apiSuccessExample {json} Success-Response:
+   *     HTTP/1.1 200 OK
+   *     [{
+   *       "_id": "6900f87f9cafee38028ea27e",
+   *       "npub": "npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8",
+   *       "bchAddr" : "bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a",
+   *       "pubKey": "6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1",
+   *       "createdAt":"2025-10-28T17:08:15.409Z",
+   *       "updatedAt": "2025-10-28T17:08:15.409Z"
+   *     }]
+   *
+   * */
+  async getDeletedPosts (ctx) {
+    try {
+      const deletedPosts = await this.useCases.nostr.getDeletedPosts()
+
+      ctx.body = { deletedPosts }
+    } catch (err) {
+      wlogger.error('Error in getDeletedPosts() REST API handler.')
+      this.handleError(ctx, err)
+    }
+  }
+
+  // DRY error handler
+  handleError (ctx, err) {
+    // If an HTTP status is specified by the buisiness logic, use that.
+    if (err.status) {
+      if (err.message) {
+        ctx.throw(err.status, err.message)
+      } else {
+        ctx.throw(err.status)
+      }
+    } else {
+      // By default use a 422 error if the HTTP status is not specified.
+      ctx.throw(422, err.message)
+    }
+  }
+}
+
+export default NostrRESTControllerLib

src/controllers/rest-api/nostr/index.js

@@ -0,0 +1,81 @@
+/*
+  REST API library for /nostr route.
+*/
+
+// Public npm libraries.
+import Router from 'koa-router'
+
+// Local libraries.
+import NostrRESTControllerLib from './controller.js'
+
+import Validators from '../middleware/validators.js'
+
+import config from '../../../../config/index.js'
+
+class NostrRouter {
+  constructor (localConfig = {}) {
+    // Dependency Injection.
+    this.adapters = localConfig.adapters
+    if (!this.adapters) {
+      throw new Error(
+        'Instance of Adapters library required when instantiating NostrRouter REST Controller.'
+      )
+    }
+    this.useCases = localConfig.useCases
+    if (!this.useCases) {
+      throw new Error(
+        'Instance of Use Cases library required when instantiating NostrRouter REST Controller.'
+      )
+    }
+
+    const dependencies = {
+      adapters: this.adapters,
+      useCases: this.useCases
+    }
+
+    // Encapsulate dependencies.
+    this.config = config
+    this.nostrRESTController = new NostrRESTControllerLib(dependencies)
+    this.validators = new Validators()
+
+    // Instantiate the router and set the base route.
+    const baseUrl = '/nostr'
+    this.router = new Router({ prefix: baseUrl })
+
+    this.attach = this.attach.bind(this)
+    this.createDeletedChat = this.createDeletedChat.bind(this)
+    this.createDeletedPost = this.createDeletedPost.bind(this)
+  }
+
+  attach (app) {
+    if (!app) {
+      throw new Error(
+        'Must pass app object when attaching REST API controllers.'
+      )
+    }
+
+    // Define the routes and attach the controller.
+    this.router.post('/deletedChat', this.createDeletedChat)
+    this.router.get('/deletedChat', this.nostrRESTController.getDeletedChats)
+    this.router.post('/deletedPost', this.createDeletedPost)
+    this.router.get('/deletedPost', this.nostrRESTController.getDeletedPosts)
+
+    // Attach the Controller routes to the Koa app.
+    app.use(this.router.routes())
+    app.use(this.router.allowedMethods())
+  }
+
+  async createDeletedChat (ctx, next) {
+    await this.validators.ensureAdmin(ctx, next)
+    await this.nostrRESTController.createDeletedChat(ctx, next)
+    return true
+  }
+
+  async createDeletedPost (ctx, next) {
+    await this.validators.ensureAdmin(ctx, next)
+    await this.nostrRESTController.createDeletedPost(ctx, next)
+    return true
+  }
+}
+
+export default NostrRouter

src/controllers/timer-controllers.js

@@ -28,6 +28,7 @@ class TimerControllers {
     this.backupUsageInterval = 60000 * 10 // 10 minutes
     this.newSmAccountsInterval = 60000 * 60 // 60 minutes
     this.updateSmAccountsInterval = 60000 * 10 // 10 minutes
+    this.removeOlderDeletedChatsAndPostsInterval = 60000 * 60 * 1 // 1 hour
 
     // Encapsulate dependencies
     this.config = config
@@ -42,7 +43,7 @@ class TimerControllers {
     this.backupUsage = this.backupUsage.bind(this)
     this.newSmAccounts = this.newSmAccounts.bind(this)
     this.updateSmAccounts = this.updateSmAccounts.bind(this)
-
+    this.removeOlderDeletedChatsAndPosts = this.removeOlderDeletedChatsAndPosts.bind(this)
     // State
     this.gcOrdersInt = null
     this.gcOffersInt = null
@@ -50,6 +51,7 @@ class TimerControllers {
     this.loadOffersInt = null
     this.newSmAccountsInt = null
     this.updateSmAccountsInt = null
+    this.removeOlderDeletedChatsAndPostsInt = null
   }
 
   // Start all the time-based controllers.
@@ -62,6 +64,7 @@ class TimerControllers {
     this.backupUsageHandle = setInterval(this.backupUsage, this.backupUsageInterval)
     this.newSmAccountsInt = setInterval(this.newSmAccounts, this.newSmAccountsInterval)
     this.updateSmAccountsInt = setInterval(this.updateSmAccounts, this.updateSmAccountsInterval)
+    this.removeOlderDeletedChatsAndPostsInt = setInterval(this.removeOlderDeletedChatsAndPosts, this.removeOlderDeletedChatsAndPostsInterval)
     return true
   }
 
@@ -74,6 +77,7 @@ class TimerControllers {
     clearInterval(this.backupUsageHandle)
     clearInterval(this.newSmAccountsInt)
     clearInterval(this.updateSmAccountsInt)
+    clearInterval(this.removeOlderDeletedChatsAndPostsInt)
   }
 
   // Garbage Collect the Orders.
@@ -194,6 +198,22 @@ class TimerControllers {
       return false
     }
   }
+
+  // Remove older deleted chats and posts.
+  async removeOlderDeletedChatsAndPosts () {
+    try {
+      //console.log('removeOlderDeletedChatsAndPosts() Timer Controller executing at ', new Date().toLocaleString())
+      clearInterval(this.removeOlderDeletedChatsAndPostsInt)
+      await this.useCases.nostr.removeOlderDeletedChats()
+      await this.useCases.nostr.removeOlderDeletedPosts()
+      this.removeOlderDeletedChatsAndPostsInt = setInterval(this.removeOlderDeletedChatsAndPosts, this.removeOlderDeletedChatsAndPostsInterval)
+      return true
+    } catch (err) {
+      console.error('Error in time-controller.js/removeOlderDeletedChatsAndPosts(): ', err)
+      this.removeOlderDeletedChatsAndPostsInt = setInterval(this.removeOlderDeletedChatsAndPosts, this.removeOlderDeletedChatsAndPostsInterval)
+      return false
+    }
+  }
 }
 
 export default TimerControllers

src/entities/deletedChat.js

@@ -0,0 +1,17 @@
+/*
+  DeletedChat Entity
+*/
+
+class DeletedChat {
+  validate (data = {}) {
+    const { eventId } = data
+    // Input Validation
+    if (!eventId || typeof eventId !== 'string') {
+      throw new Error("Property 'eventId' must be a string!")
+    }
+
+    return data
+  }
+}
+
+export default DeletedChat

src/entities/deletedPost.js

@@ -0,0 +1,17 @@
+/*
+  DeletedPost Entity
+*/
+
+class DeletedPost {
+  validate (data = {}) {
+    const { eventId } = data
+    // Input Validation
+    if (!eventId || typeof eventId !== 'string') {
+      throw new Error("Property 'eventId' must be a string!")
+    }
+
+    return data
+  }
+}
+
+export default DeletedPost

src/use-cases/index.js

@@ -11,6 +11,7 @@ import OfferUseCases from './offer/index.js'
 import OrderUseCases from './order.js'
 import { UsageUseCases } from './usage-use-cases.js'
 import SmAccountUseCases from './smAccount-use-cases.js'
+import NostrUseCases from './nostr-use-cases.js'
 
 class UseCases {
   constructor (localConfig = {}) {
@@ -29,6 +30,7 @@ class UseCases {
     this.offer = new OfferUseCases(localConfig)
     this.usage = new UsageUseCases(localConfig)
     this.smAccount = new SmAccountUseCases(localConfig)
+    this.nostr = new NostrUseCases(localConfig)
   }
 
   // Run any startup Use Cases at the start of the app.

src/use-cases/nostr-use-cases.js

@@ -0,0 +1,130 @@
+/*
+  This library contains business-logic for dealing with deleted chats. Most of these
+  functions are called by the /nostr REST API endpoints.
+*/
+
+import wlogger from '../adapters/wlogger.js'
+import DeletedChatEntity from '../entities/deletedChat.js'
+import DeletedPostEntity from '../entities/deletedPost.js'
+
+class NostrUseCases {
+  constructor (localConfig = {}) {
+    this.adapters = localConfig.adapters
+    if (!this.adapters) {
+      throw new Error(
+        'Instance of adapters must be passed in when instantiating Nostr Use Cases library.'
+      )
+    }
+    // Encapsulate dependencies
+    this.DeletedChatEntity = new DeletedChatEntity()
+    this.DeletedPostEntity = new DeletedPostEntity()
+    this.DeletedChatModel = this.adapters.localdb.DeletedChat
+    this.DeletedPostModel = this.adapters.localdb.DeletedPost
+
+    this.createDeletedChat = this.createDeletedChat.bind(this)
+    this.getDeletedChats = this.getDeletedChats.bind(this)
+    this.createDeletedPost = this.createDeletedPost.bind(this)
+    this.getDeletedPosts = this.getDeletedPosts.bind(this)
+    this.removeOlderDeletedChats = this.removeOlderDeletedChats.bind(this)
+    this.removeOlderDeletedPosts = this.removeOlderDeletedPosts.bind(this)
+  }
+
+  // Create a new deleted chat model and add it to the Mongo database.
+  async createDeletedChat (deletedChatObj) {
+    try {
+      // Input Validation
+
+      const deletedChatEntity = this.DeletedChatEntity.validate(deletedChatObj)
+      const deletedChat = new this.DeletedChatModel(deletedChatEntity)
+
+      // Save the new model to the database.
+      await deletedChat.save()
+      return deletedChat
+    } catch (err) {
+      // console.log('createDeletedChat() error: ', err)
+      wlogger.error('Error in lib/nostr.js/createDeletedChat()')
+      throw err
+    }
+  }
+
+  // Returns an array of all deleted chats models in the Mongo database.
+  async getDeletedChats () {
+    try {
+      // Get deleted chats models.
+      const deletedChats = await this.DeletedChatModel.find({})
+
+      return deletedChats
+    } catch (err) {
+      wlogger.error('Error in lib/users.js/getAllDeletedChat()')
+      throw err
+    }
+  }
+
+  // Create a new deleted post model and add it to the Mongo database.
+  async createDeletedPost (deletedPostObj) {
+    try {
+      // Input Validation
+
+      const deletedPostEntity = this.DeletedPostEntity.validate(deletedPostObj)
+      const deletedPost = new this.DeletedPostModel(deletedPostEntity)
+
+      // Save the new model to the database.
+      await deletedPost.save()
+      return deletedPost
+    } catch (err) {
+      wlogger.error('Error in lib/users.js/createDeletedPost()')
+      throw err
+    }
+  }
+
+  // Returns an array of all deleted posts models in the Mongo database.
+  async getDeletedPosts () {
+    try {
+      // Get deleted posts models.
+      const deletedPosts = await this.DeletedPostModel.find({})
+
+      return deletedPosts
+    } catch (err) {
+      wlogger.error('Error in lib/users.js/getDeletedPosts()')
+      throw err
+    }
+  }
+
+  // Remove deleted chats that are older than 3 months.
+  async removeOlderDeletedChats () {
+    try {
+      const deletedChats = await this.DeletedChatModel.find({})
+      const threeMonthsAgo = new Date()
+      threeMonthsAgo.setMonth(threeMonthsAgo.getMonth() - 3)
+      for (let i = 0; i < deletedChats.length; i++) {
+        const deletedChat = deletedChats[i]
+        if (deletedChat.createdAt.getTime() < threeMonthsAgo.getTime()) {
+          await deletedChat.remove()
+        }
+      }
+    } catch (err) {
+      wlogger.error('Error in lib/users.js/removeOlderDeletedChats()')
+      throw err
+    }
+  }
+
+  // Remove deleted posts that are older than 3 months.
+  async removeOlderDeletedPosts () {
+    try {
+      const deletedPosts = await this.DeletedPostModel.find({})
+      const threeMonthsAgo = new Date()
+      threeMonthsAgo.setMonth(threeMonthsAgo.getMonth() - 3)
+      for (let i = 0; i < deletedPosts.length; i++) {
+        const deletedPost = deletedPosts[i]
+        if (deletedPost.createdAt.getTime() < threeMonthsAgo.getTime()) {
+          await deletedPost.remove()
+        }
+      }
+    } catch (err) {
+      wlogger.error('Error in lib/users.js/removeOlderDeletedPosts()')
+      throw err
+    }
+  }
+}
+
+export default NostrUseCases

test/e2e/automated/a12-nostr.rest-e2e.js

@@ -0,0 +1,188 @@
+import testUtils from '../../utils/test-utils.js'
+import { assert } from 'chai'
+import config from '../../../config/index.js'
+import axios from 'axios'
+import sinon from 'sinon'
+import util from 'util'
+
+util.inspect.defaultOptions = { depth: 1 }
+
+const LOCALHOST = `http://localhost:${config.port}`
+
+const context = {}
+let sandbox
+
+// const mockContext = require('../../unit/mocks/ctx-mock').context
+
+if (!config.noMongo) {
+  describe('Nostr', () => {
+    before(async () => {
+      // console.log(`config: ${JSON.stringify(config, null, 2)}`)
+
+      // Create a second test user.
+      const userObj = {
+        email: 'test2@test.com',
+        password: 'pass2',
+        name: 'test2'
+      }
+      const testUser = await testUtils.createUser(userObj)
+      // console.log(`testUser2: ${JSON.stringify(testUser, null, 2)}`)
+
+      context.user2 = testUser.user
+      context.token2 = testUser.token
+      context.id2 = testUser.user._id
+
+      // Get the JWT used to log in as the admin 'system' user.
+      const adminJWT = await testUtils.getAdminJWT()
+      console.log(`adminJWT: ${adminJWT}`)
+      context.adminJWT = adminJWT
+
+      // const admin = await testUtils.loginAdminUser()
+      // context.adminJWT = admin.token
+
+      // const admin = await adminLib.loginAdmin()
+      // console.log(`admin: ${JSON.stringify(admin, null, 2)}`)
+    })
+
+    beforeEach(() => {
+      // const useCases = new UseCases({ adapters })
+      // uut = new UserController({ adapters, useCases })
+
+      sandbox = sinon.createSandbox()
+    })
+
+    afterEach(() => sandbox.restore())
+
+    describe('POST /nostr/deletedChat - Create Deleted Chat', () => {
+      it('should not create deleted chat if the authorization header is missing', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedChat`
+          }
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+      it('should not create deleted chat if the authorization header is invalid scheme', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedChat`,
+            headers: {
+              Authorization: 'Bearer invalid'
+            }
+          }
+
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+      it('should not create deleted chat if the authorization header is invalid token', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedChat`,
+            headers: {
+              Authorization: `Bearer ${context.token}`
+            }
+          }
+
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+      it('should not create deleted chat if token is not admin', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedChat`,
+            headers: {
+              Authorization: `Bearer ${context.token}`
+            }
+          }
+
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+    })
+
+    describe('POST /nostr/deletedPost - Create Deleted Post', () => {
+      it('should not create deleted post if the authorization header is missing', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedPost`
+          }
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+
+      it('should not create deleted post if the authorization header is invalid scheme', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedPost`,
+            headers: {
+              Authorization: 'Bearer invalid'
+            }
+          }
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+      it('should not create deleted post if the authorization header is invalid token', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedPost`,
+            headers: {
+              Authorization: `Bearer ${context.token}`
+            }
+          }
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+      it('should not create deleted post if token is not admin', async () => {
+        try {
+          const options = {
+            method: 'POST',
+            url: `${LOCALHOST}/nostr/deletedPost`,
+            headers: {
+              Authorization: `Bearer ${context.token}`
+            }
+          }
+          await axios(options)
+
+          assert.equal(true, false, 'Unexpected behavior')
+        } catch (err) {
+          assert.equal(err.response.status, 401)
+        }
+      })
+    })
+  })
+}

test/unit/controllers/rest-api/nostr/nostr.rest.controller.unit.js

@@ -0,0 +1,201 @@
+/*
+  Unit tests for the REST API handler for the /nostr endpoints.
+*/
+
+// Public npm libraries
+import { assert } from 'chai'
+import sinon from 'sinon'
+
+// Local support libraries
+import adapters from '../../../mocks/adapters/index.js'
+import UseCasesMock from '../../../mocks/use-cases/index.js'
+import NostrController from '../../../../../src/controllers/rest-api/nostr/controller.js'
+
+import { context as mockContext } from '../../../../unit/mocks/ctx-mock.js'
+let uut
+let sandbox
+let ctx
+
+describe('#Nostr-REST-Controller', () => {
+  // const testUser = {}
+
+  beforeEach(() => {
+    const useCases = new UseCasesMock()
+    uut = new NostrController({ adapters, useCases })
+
+    sandbox = sinon.createSandbox()
+
+    // Mock the context object.
+    ctx = mockContext()
+  })
+
+  afterEach(() => sandbox.restore())
+
+  describe('#constructor', () => {
+    it('should throw an error if adapters are not passed in', () => {
+      try {
+        uut = new NostrController()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of Adapters library required when instantiating /nostr REST Controller.'
+        )
+      }
+    })
+
+    it('should throw an error if useCases are not passed in', () => {
+      try {
+        uut = new NostrController({ adapters })
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of Use Cases library required when instantiating /nostr REST Controller.'
+        )
+      }
+    })
+  })
+
+  describe('#POST /nostr/deletedChat', () => {
+    it('should return 422 status on biz logic error', async () => {
+      try {
+        sandbox.stub(uut.useCases.nostr, 'createDeletedChat').rejects(new Error('test error'))
+        await uut.createDeletedChat(ctx)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        // console.log(err)
+        assert.equal(err.status, 422)
+        assert.include(err.message, 'test error')
+      }
+    })
+
+    it('should return 200 status on success', async () => {
+      ctx.request.body = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      await uut.createDeletedChat(ctx)
+
+      // Assert the expected HTTP response
+      assert.equal(ctx.status, 200)
+
+      assert.isObject(ctx.response.body)
+    })
+  })
+
+  describe('#GET /nostr/deletedChat', () => {
+    it('should return 422 status on arbitrary biz logic error', async () => {
+      try {
+        // Force an error
+        sandbox
+          .stub(uut.useCases.nostr, 'getDeletedChats')
+          .rejects(new Error('test error'))
+
+        await uut.getDeletedChats(ctx)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        assert.equal(err.status, 422)
+        assert.include(err.message, 'test error')
+      }
+    })
+
+    it('should return 200 status on success', async () => {
+      await uut.getDeletedChats(ctx)
+
+      // Assert the expected HTTP response
+      assert.equal(ctx.status, 200)
+
+      // Assert that expected properties exist in the returned data.
+      assert.isObject(ctx.response.body)
+      assert.property(ctx.response.body, 'deletedChats')
+      assert.isArray(ctx.response.body.deletedChats)
+    })
+  })
+  describe('#POST /nostr/deletedPost', () => {
+    it('should return 422 status on biz logic error', async () => {
+      try {
+        sandbox.stub(uut.useCases.nostr, 'createDeletedPost').rejects(new Error('test error'))
+        await uut.createDeletedPost(ctx)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        assert.equal(err.status, 422)
+        assert.include(err.message, 'test error')
+      }
+    })
+    it('should return 200 status on success', async () => {
+      ctx.request.body = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      await uut.createDeletedPost(ctx)
+
+      assert.equal(ctx.status, 200)
+
+      assert.isObject(ctx.response.body)
+      assert.property(ctx.response.body, 'deletedPost')
+      assert.isObject(ctx.response.body.deletedPost)
+    })
+  })
+  describe('#GET /nostr/deletedPost', () => {
+    it('should return 422 status on biz logic error', async () => {
+      try {
+        sandbox.stub(uut.useCases.nostr, 'getDeletedPosts').rejects(new Error('test error'))
+        await uut.getDeletedPosts(ctx)
+
+        assert.fail('Unexpected result')
+      } catch (err) {
+        assert.equal(err.status, 422)
+        assert.include(err.message, 'test error')
+      }
+    })
+    it('should return 200 status on success', async () => {
+      await uut.getDeletedPosts(ctx)
+
+      // Assert the expected HTTP response
+      assert.equal(ctx.status, 200)
+
+      assert.isObject(ctx.response.body)
+      assert.property(ctx.response.body, 'deletedPosts')
+      assert.isArray(ctx.response.body.deletedPosts)
+    })
+  })
+
+  describe('#handleError', () => {
+    it('should still throw error if there is no message', () => {
+      try {
+        const err = {
+          status: 404
+        }
+
+        uut.handleError(ctx, err)
+      } catch (err) {
+        assert.include(err.message, 'Not Found')
+      }
+    })
+
+    it('should throw error with message', () => {
+      try {
+        const err = {
+          status: 422,
+          message: 'test error'
+        }
+
+        uut.handleError(ctx, err)
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
+})

test/unit/controllers/rest-api/nostr/nostr.rest.router.unit.js

@@ -0,0 +1,108 @@
+/*
+  Unit tests for the REST API handler for the /nostr endpoints.
+*/
+
+// Public npm libraries
+import { assert } from 'chai'
+
+import sinon from 'sinon'
+
+// Local support libraries
+import adapters from '../../../mocks/adapters/index.js'
+
+import UseCasesMock from '../../../mocks/use-cases/index.js'
+
+// const app = require('../../../mocks/app-mock')
+
+import NostrRouter from '../../../../../src/controllers/rest-api/nostr/index.js'
+
+let uut
+let sandbox
+// let ctx
+
+// const mockContext = require('../../../../unit/mocks/ctx-mock').context
+
+describe('#Nostr-REST-Router', () => {
+  // const testUser = {}
+
+  beforeEach(() => {
+    const useCases = new UseCasesMock()
+    uut = new NostrRouter({ adapters, useCases })
+
+    sandbox = sinon.createSandbox()
+
+    // Mock the context object.
+    // ctx = mockContext()
+  })
+
+  afterEach(() => sandbox.restore())
+
+  describe('#constructor', () => {
+    it('should throw an error if adapters are not passed in', () => {
+      try {
+        uut = new NostrRouter()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of Adapters library required when instantiating NostrRouter REST Controller.'
+        )
+      }
+    })
+
+    it('should throw an error if useCases are not passed in', () => {
+      try {
+        uut = new NostrRouter({ adapters })
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of Use Cases library required when instantiating NostrRouter REST Controller.'
+        )
+      }
+    })
+  })
+
+  describe('#attach', () => {
+    it('should throw an error if app is not passed in.', () => {
+      try {
+        uut.attach()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Must pass app object when attaching REST API controllers.'
+        )
+      }
+    })
+  })
+
+  describe('#createDeletedChat', () => {
+    it('should route to the createDeletedChat function', async () => {
+      // Stub functions
+      const validationSpy = sandbox.stub(uut.validators, 'ensureAdmin').resolves(true)
+      sandbox.stub(uut.nostrRESTController, 'createDeletedChat').resolves(true)
+
+      // Call function
+      const res = await uut.createDeletedChat()
+      assert.isTrue(validationSpy.calledOnce, 'Admin validator should be called')
+      assert.isTrue(res)
+    })
+  })
+
+  describe('#createDeletedPost', () => {
+    it('should route to the createDeletedPost function', async () => {
+      // Stub functions
+      const validationSpy = sandbox.stub(uut.validators, 'ensureAdmin').resolves(true)
+      sandbox.stub(uut.nostrRESTController, 'createDeletedPost').resolves(true)
+
+      // Call function
+      const res = await uut.createDeletedPost()
+      assert.isTrue(validationSpy.calledOnce, 'Admin validator should be called')
+      assert.isTrue(res)
+    })
+  })
+})

test/unit/controllers/timer-controllers.unit.js

@@ -187,4 +187,20 @@ describe('#Timer-Controllers', () => {
       assert.equal(result, false)
     })
   })
+  describe('#removeOlderDeletedChatsAndPosts', () => {
+    it('should kick off the Use Cases and return true', async () => {
+      sandbox.stub(uut.useCases.nostr, 'removeOlderDeletedChats').resolves()
+      sandbox.stub(uut.useCases.nostr, 'removeOlderDeletedPosts').resolves()
+      const result = await uut.removeOlderDeletedChatsAndPosts()
+
+      assert.equal(result, true)
+    })
+  })
+  it('should kick off the Use Cases and return false on error', async () => {
+    sandbox.stub(uut.useCases.nostr, 'removeOlderDeletedChats').throws(new Error('test error'))
+    sandbox.stub(uut.useCases.nostr, 'removeOlderDeletedPosts').throws(new Error('test error'))
+    const result = await uut.removeOlderDeletedChatsAndPosts()
+
+    assert.equal(result, false)
+  })
 })

test/unit/entities/deletedChat.entity.unit.js

@@ -0,0 +1,57 @@
+/*
+  Unit tests for the DeletedChat entity library.
+*/
+
+import { assert } from 'chai'
+import sinon from 'sinon'
+
+import DeletedChat from '../../../src/entities/deletedChat.js'
+
+let sandbox
+let uut
+
+describe('#DeletedChat-Entity', () => {
+  before(async () => {})
+
+  beforeEach(() => {
+    uut = new DeletedChat()
+
+    sandbox = sinon.createSandbox()
+  })
+
+  afterEach(() => sandbox.restore())
+
+  describe('#validate', () => {
+    it('should throw an error if eventId is not provided', () => {
+      try {
+        uut.validate()
+      } catch (err) {
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should return a DeletedChat object', () => {
+      const inputData = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      const deletedChat = uut.validate(inputData)
+      // console.log('entry: ', entry)
+
+      assert.property(deletedChat, 'eventId')
+      assert.equal(deletedChat.eventId, inputData.eventId)
+
+      assert.property(deletedChat, 'npub')
+      assert.equal(deletedChat.npub, inputData.npub)
+
+      assert.property(deletedChat, 'bchAddr')
+      assert.equal(deletedChat.bchAddr, inputData.bchAddr)
+
+      assert.property(deletedChat, 'pubkey')
+      assert.equal(deletedChat.pubkey, inputData.pubkey)
+    })
+  })
+})

test/unit/entities/deletedPost.entity.unit.js

@@ -0,0 +1,57 @@
+/*
+  Unit tests for the DeletedPost entity library.
+*/
+
+import { assert } from 'chai'
+import sinon from 'sinon'
+
+import DeletedPost from '../../../src/entities/deletedPost.js'
+
+let sandbox
+let uut
+
+describe('#DeletedPost-Entity', () => {
+  before(async () => { })
+
+  beforeEach(() => {
+    uut = new DeletedPost()
+
+    sandbox = sinon.createSandbox()
+  })
+
+  afterEach(() => sandbox.restore())
+
+  describe('#validate', () => {
+    it('should throw an error if eventId is not provided', () => {
+      try {
+        uut.validate()
+      } catch (err) {
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should return a DeletedPost object', () => {
+      const inputData = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      const deletedPost = uut.validate(inputData)
+      // console.log('entry: ', entry)
+
+      assert.property(deletedPost, 'eventId')
+      assert.equal(deletedPost.eventId, inputData.eventId)
+
+      assert.property(deletedPost, 'npub')
+      assert.equal(deletedPost.npub, inputData.npub)
+
+      assert.property(deletedPost, 'bchAddr')
+      assert.equal(deletedPost.bchAddr, inputData.bchAddr)
+
+      assert.property(deletedPost, 'pubkey')
+      assert.equal(deletedPost.pubkey, inputData.pubkey)
+    })
+  })
+})

test/unit/mocks/adapters/index.js

@@ -165,7 +165,31 @@ const localdb = {
     async save () {
       return {}
     }
-  }
+  },
+  DeletedChat: class DeletedChat {
+    constructor (obj) {}
+
+    static findById () {}
+    static find () {}
+    static findOne () {}
+    static updateOne () {}  
+
+    async save () {
+      return {}
+    }
+  },
+  DeletedPost: class DeletedPost {
+    constructor (obj) {}
+
+    static findById () {}
+    static find () {}
+    static findOne () {}
+    static updateOne () {}  
+
+    async save () {
+      return {}
+    }
+  } 
 }
 
 const bch = {

test/unit/mocks/use-cases/index.js

@@ -135,6 +135,27 @@ class SmAccountUseCaseMock {
   }
 }
 
+class NostrUseCasesMock {
+  async createDeletedChat() {
+    return {}
+  }
+  async getDeletedChats() {
+    return []
+  }
+  async createDeletedPost() {
+    return {}
+  }
+  async getDeletedPosts() {
+    return []
+  }
+  async removeOlderDeletedChats() {
+    return true
+  }
+  async removeOlderDeletedPosts() {
+    return true
+  }
+}
+
 class UseCasesMock {
   constuctor(localConfig = {}) {
     // this.user = new UserUseCaseMock(localConfig)
@@ -146,6 +167,7 @@ class UseCasesMock {
   order = new Order()
   usage = new UsageUseCaseMock()
   smAccount = new SmAccountUseCaseMock()
+  nostr = new NostrUseCasesMock()
 }
 
 export default UseCasesMock;

test/unit/use-cases/nostr.use-case.unit.js

@@ -0,0 +1,287 @@
+/*
+  Unit tests for the Nostr Use Case library.
+*/
+
+// Public npm libraries
+import { assert } from 'chai'
+import sinon from 'sinon'
+
+// Unit under test (uut)
+import NostrUseCases from '../../../src/use-cases/nostr-use-cases.js'
+// Local support libraries
+import adapters from '../mocks/adapters/index.js'
+
+describe('#nostr-use-cases', () => {
+  let uut
+  let sandbox
+
+  before(async () => {
+    // Delete all previous users in the database.
+    // await testUtils.deleteAllUsers()
+  })
+
+  beforeEach(() => {
+    sandbox = sinon.createSandbox()
+
+    uut = new NostrUseCases({ adapters })
+  })
+
+  afterEach(() => sandbox.restore())
+
+  describe('#constructor', () => {
+    it('should throw an error if adapters are not passed in', () => {
+      try {
+        uut = new NostrUseCases()
+
+        assert.fail('Unexpected code path')
+        console.log(uut) // linter
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of adapters must be passed in when instantiating Nostr Use Cases library.'
+        )
+      }
+    })
+  })
+
+  describe('#createDeletedChat', () => {
+    it('should throw an error if no input is given', async () => {
+      try {
+        await uut.createDeletedChat()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        // console.log(err)
+        // assert.equal(err.status, 422)
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should throw an error if eventId is not provided', async () => {
+      try {
+        await uut.createDeletedChat({})
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should catch and throw DB errors', async () => {
+      try {
+        // Force an error with the database.
+        sandbox.stub(uut, 'DeletedChatModel').throws(new Error('test error'))
+
+        const inObj = {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q'
+        }
+
+        await uut.createDeletedChat(inObj)
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+
+    it('should create a new deleted chat model with minimum inputs', async () => {
+      const inObj = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q'
+      }
+
+      const res = await uut.createDeletedChat(inObj)
+
+      assert.isObject(res)
+    })
+    it('should create a new deleted chat model with maximum inputs', async () => {
+      const inObj = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      const res = await uut.createDeletedChat(inObj)
+
+      assert.isObject(res)
+    })
+  })
+
+  describe('#getDeletedChats', () => {
+    it('should return all deleted chats from the database', async () => {
+      sandbox.stub(uut.DeletedChatModel, 'find').resolves([])
+      const res = await uut.getDeletedChats()
+
+      assert.isArray(res)
+    })
+
+    it('should catch and throw an error', async () => {
+      try {
+        // Force an error.
+        sandbox.stub(uut.DeletedChatModel, 'find').rejects(new Error('test error'))
+
+        await uut.getDeletedChats()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
+
+  describe('#createDeletedPost', () => {
+    it('should throw an error if no input is given', async () => {
+      try {
+        await uut.createDeletedPost()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should throw an error if eventId is not provided', async () => {
+      try {
+        await uut.createDeletedPost({})
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, "Property 'eventId' must be a string!")
+      }
+    })
+
+    it('should catch and throw DB errors', async () => {
+      try {
+        // Force an error with the database.
+        sandbox.stub(uut, 'DeletedPostModel').throws(new Error('test error'))
+
+        const inObj = {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q'
+        }
+
+        await uut.createDeletedPost(inObj)
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+    it('should create a new deleted post model with minimum inputs', async () => {
+      const inObj = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q'
+      }
+
+      const res = await uut.createDeletedPost(inObj)
+
+      assert.isObject(res)
+    })
+    it('should create a new deleted post model with maximum inputs', async () => {
+      const inObj = {
+        eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+        npub: 'npub1d4ed5x49d7p24xn63flj4985dc4gpfngdhtqcxpth0ywhm6czxcscfpcq8',
+        bchAddr: 'bitcoincash:qpm2qsznhks23z7629mms6s4cwef74vcwvy22gdx6a',
+        pubkey: '6d72da1aa56f82aa9a7a8a7f2a94f46e2a80a6686dd60c182bbbc8ebef5811b1'
+      }
+
+      const res = await uut.createDeletedPost(inObj)
+
+      assert.isObject(res)
+    })
+  })
+
+  describe('#getDeletedPosts', () => {
+    it('should return all deleted posts from the database', async () => {
+      sandbox.stub(uut.DeletedPostModel, 'find').resolves([])
+      const res = await uut.getDeletedPosts()
+
+      assert.isArray(res)
+    })
+  })
+
+  it('should catch and throw an error', async () => {
+    try {
+      // Force an error.
+      sandbox.stub(uut.DeletedPostModel, 'find').rejects(new Error('test error'))
+
+      await uut.getDeletedPosts()
+
+      assert.fail('Unexpected code path')
+    } catch (err) {
+      assert.include(err.message, 'test error')
+    }
+  })
+  describe('#removeOlderDeletedChats', () => {
+    it('should remove older deleted chats from the database', async () => {
+      const threeMonthsAgo = new Date()
+      threeMonthsAgo.setMonth(threeMonthsAgo.getMonth() - 3) // 3 months ago
+      threeMonthsAgo.setDate(threeMonthsAgo.getDate() - 1) // 1 day ago
+      const spy = sinon.spy()
+      const deletedChatsMock = [
+        // Newer deleted chat
+        {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+          createdAt: new Date(),
+          remove: spy
+        },
+        // Older deleted chat
+        {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+          createdAt: threeMonthsAgo,
+          remove: spy
+        }
+      ]
+      sandbox.stub(uut.DeletedChatModel, 'find').resolves(deletedChatsMock)
+      await uut.removeOlderDeletedChats()
+      assert.equal(spy.callCount, 1, 'Expected to be called once.')
+    })
+    it('should handle error', async () => {
+      try {
+        // Force an error.
+        sandbox.stub(uut.DeletedChatModel, 'find').throws(new Error('test error'))
+
+        await uut.removeOlderDeletedChats()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
+  describe('#removeOlderDeletedPosts', () => {
+    it('should remove older deleted posts from the database', async () => {
+      const threeMonthsAgo = new Date()
+      threeMonthsAgo.setMonth(threeMonthsAgo.getMonth() - 3) // 3 months ago
+      threeMonthsAgo.setDate(threeMonthsAgo.getDate() - 1) // 1 day ago
+      const spy = sinon.spy()
+      const deletedPostsMock = [
+        // Newer deleted post
+        {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+          createdAt: new Date(),
+          remove: spy
+        },
+        // Older deleted post
+        {
+          eventId: 'note19e93faw4ffqepsqsrwrnstd3ee00nmzakwwuyfjm43dankgummfqms4p6q',
+          createdAt: threeMonthsAgo,
+          remove: spy
+        }
+      ]
+      sandbox.stub(uut.DeletedPostModel, 'find').resolves(deletedPostsMock)
+      await uut.removeOlderDeletedPosts()
+      assert.equal(spy.callCount, 1, 'Expected to be called once.')
+    })
+    it('should handle error', async () => {
+      try {
+        // Force an error.
+        sandbox.stub(uut.DeletedPostModel, 'find').throws(new Error('test error'))
+
+        await uut.removeOlderDeletedPosts()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(err.message, 'test error')
+      }
+    })
+  })
+})