README.md

 # Pokemon Trainer Database
 
-The [Pokemon Trainer Database](https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon) is a sample web
+The [PokeApp](https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon) is a sample web
 application designed to teach web development concepts at
 the [Data & Information module](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/study-programme/#modules-technical-computer-science)
 of the [Technical Computer Science](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/)
@@ -10,13 +10,16 @@ The contents of this repository are licensed
 under [Creative Commons Attribution 4.0 International (CC-BY-4.0)](./LICENSE). Viewers are welcome to reuse its contents
 and to submit their own contributions.
 
-## Repository structure
+![](./design/models/Class%20Diagram.png)
 
-- `/`:
+**NOTE: this diagram has been simplified in the implementation and several fields have been omitted.**
 
-## Class Diagram
+## Support files
 
-## External resources
+- `/design`: this folder different files to support the design of the PokeApp including an [OpenAPI specification](./design/open-api.yaml) containing all routes and various [HTTP request files](./design/requests) to be executed directly from IntelliJ's HTTP client.
+- `./meetings/practical-session-3.md`: [this file](./meetings/practical-session-3.md) contains different guides and tips to help you work on the practical session (e.g., how to checkout a new remote branch, or how to run HTTP requests).
+
+## Credits
 
 The following datasets and resources have been used in the development this project.
 
@@ -34,3 +37,5 @@ The following datasets and resources have been used in the development this proj
     - GitHub: [@claudenirmf](https://github.com/claudenirmf)
     - LinkedIn: [@claudenir-fonseca](https://www.linkedin.com/in/claudenir-fonseca/)
     - E-mail: [c.moraisfonseca@utwente.nl](c.moraisfonseca@utwente.nl)
+
+Additional contributions are welcome in the forms of issues and merge requests.

design/example-open-api.yaml

+openapi: 3.0.3
+info:
+  title: Example OpenAPI document
+  description: Example OpenAPI document
+  version: 1.0.0
+servers:
+  - url: 'https://example.com'
+paths:
+  '/api/pokemon':
+      get:
+        description: Retrieves pokemon resources.
+        responses:
+          200:
+            description: OK
\ No newline at end of file

design/open-api.yaml

@@ -2,19 +2,19 @@ openapi: "3.0.3"
 externalDocs:
   url: https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon
 info:
-  title: Pokémon Trainer Database API
+  title: PokeApp API
   version: "1.0"
   license:
     name: Creative Commons Attribution 4.0 International (CC-BY-4.0)
     url: https://creativecommons.org/licenses/by/4.0/deed.en
-  description: The [Pokémon Trainer Database API](https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon) is a REST API part of a sample web application designed to teach web development concepts at the [Data & Information module](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/study-programme/#modules-technical-computer-science) of the [Technical Computer Science](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/) program of the [University of Twente](https://utwente.nl/en).
+  description: The [PokeApp API](https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon) is a REST API part of a sample web application designed to teach web development concepts at the [Data & Information module](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/study-programme/#modules-technical-computer-science) of the [Technical Computer Science](https://www.utwente.nl/en/education/bachelor/programmes/technical-computer-science/) program of the [University of Twente](https://utwente.nl/en).
   contact:
     name: Claudenir M. Fonseca
     url: https://gitlab.utwente.nl/claudenirmf/mod4-wp-2023-2024-pokemon/issues
     email: c.moraisfonseca@utwente.nl
 servers:
   - description: Local Deployment
-    url: http://localhost:8080/pokemon_war_exploded
+    url: http://localhost:8080/pokemon/api
 tags:
   - name: Trainer
     description: Routes for managing data about trainers.
@@ -28,9 +28,40 @@ paths:
       description: Retrieves a collection of resources.
       tags:
         - Trainer
+      parameters:
+        - name: pageNumber
+          description: Returns the desired page.
+          in: query
+          schema:
+            type: number
+        - name: pageSize
+          description: Returns the desired number of resources.
+          in: query
+          schema:
+            type: number
       responses:
         200:
           description: OK
+          content:
+            application/json:
+              example:
+                {
+                  "meta": {
+                    "total": 1,
+                    "pageNumber": 1,
+                    "pageSize": 1
+                  },
+                  "data": [
+                    {
+                      "id": "1",
+                      "name": "Red",
+                      "created": "24/04/2024",
+                      "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                      "profileUrl": "https://archives.bulbagarden.net/media/upload/thumb/d/d3/Lets_Go_Pikachu_Eevee_Red.png/500px-Lets_Go_Pikachu_Eevee_Red.png"
+                    }
+                  ]
+                }
+
     post:
       description: Creates a resource on the route's collection.
       tags:
@@ -39,10 +70,30 @@ paths:
         content:
           'application/json':
             schema:
-              type: object
+              $ref: '#/components/schemas/Trainer'
+            examples:
+              full:
+                description: Complete POST example
+                value: {
+                  "name": "Red",
+                  "profileUrl": "https://archives.bulbagarden.net/media/upload/thumb/d/d3/Lets_Go_Pikachu_Eevee_Red.png/500px-Lets_Go_Pikachu_Eevee_Red.png"
+                }
+              min:
+                description: Minimum POST example
+                value: { }
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "1",
+                  "name": "Red",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "profileUrl": "https://archives.bulbagarden.net/media/upload/thumb/d/d3/Lets_Go_Pikachu_Eevee_Red.png/500px-Lets_Go_Pikachu_Eevee_Red.png"
+                }
         400:
           description: Bad request
         405:
@@ -63,6 +114,16 @@ paths:
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "1",
+                  "name": "Red",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "profileUrl": "https://archives.bulbagarden.net/media/upload/thumb/d/d3/Lets_Go_Pikachu_Eevee_Red.png/500px-Lets_Go_Pikachu_Eevee_Red.png"
+                }
         404:
           description: Not found
     put:
@@ -82,10 +143,31 @@ paths:
         content:
           'application/json':
             schema:
-              type: object
+              $ref: '#/components/schemas/Trainer'
+            examples:
+              full:
+                description: Complete PUT example
+                value: {
+                  "id": "1",
+                  "name": "New Red Name",
+                  "profileUrl": null
+                }
+              min:
+                description: Minimum PUT example
+                value: { "id": "1" }
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "1",
+                  "name": "New Red Name",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "profileUrl": null
+                }
         400:
           description: Bad request
         404:
@@ -122,6 +204,26 @@ paths:
       responses:
         200:
           description: OK
+          content:
+            application/json:
+              example:
+                {
+                  "meta": {
+                    "total": 1,
+                    "pageNumber": 1,
+                    "pageSize": 1
+                  },
+                  "data": [
+                    {
+                      "id": "1",
+                      "created": "24/04/2024",
+                      "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                      "name": "My Pikachu",
+                      "pokemonType": "513",
+                      "trainerId": "1"
+                    }
+                  ]
+                }
     post:
       description: Creates a resource on the route's collection.
       tags:
@@ -130,10 +232,32 @@ paths:
         content:
           'application/json':
             schema:
-              type: object
+              $ref: '#/components/schemas/Pokemon'
+            examples:
+              full:
+                value: {
+                  "name": "My Pikachu",
+                  "pokemonType": "513",
+                  "trainerId": "1"
+                }
+                description: Complete POST example
+              min:
+                value: { }
+                description: Minimum POST example
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "1",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "name": "My Pikachu",
+                  "pokemonType": "513",
+                  "trainerId": "1"
+                }
         400:
           description: Bad request
         405:
@@ -154,6 +278,17 @@ paths:
       responses:
         200:
           description: OK
+          content:
+            application/json:
+              example:
+                {
+                  "id": "1",
+                  "name": "My Pikachu",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "pokemonType": "513",
+                  "trainerId": "1"
+                }
         404:
           description: Not found
     put:
@@ -168,15 +303,40 @@ paths:
             type: string
             minLength: 1
           required: true
-      
+
       requestBody:
         content:
           'application/json':
             schema:
-              type: object
+              $ref: '#/components/schemas/Pokemon'
+            examples:
+              full:
+                value: {
+                  "id": "1",
+                  "name": "It's Blue's charmander",
+                  "pokemonType": "4",
+                  "trainerId": "2"
+                }
+                description: Complete PUT example
+              min:
+                value: {
+                  "id": "1"
+                }
+                description: Minimum PUT example
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "1",
+                  "created": "24/04/2024",
+                  "lastUpDate": "2024-05-12T23:12:01.660866Z",
+                  "name": "It's Blue's charmander",
+                  "pokemonType": "4",
+                  "trainerId": "2"
+                }
         400:
           description: Bad request
         404:
@@ -210,9 +370,67 @@ paths:
       description: Retrieves a collection of resources.
       tags:
         - Pokémon Type
+      parameters:
+        - name: pageNumber
+          description: Returns the desired page.
+          in: query
+          schema:
+            type: number
+        - name: pageSize
+          description: Returns the desired number of resources.
+          in: query
+          schema:
+            type: number
+        - name: sortBy
+          description: Returns resources sorted according the desired attribute.
+          in: query
+          schema:
+            type: string
+            enum:
+              - id
+              - pokedexNumber
+              - lastUpDate
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example: {
+                "meta": {
+                  "total": 1,
+                  "pageNumber": 1,
+                  "pageSize": 1
+                },
+                "data": [
+                  {
+                    "id": "1",
+                    "name": "Abomasnow",
+                    "created": "24/04/2024",
+                    "lastUpDate": "24/04/2024",
+                    "pokedexNumber": 460,
+                    "generation": 4,
+                    "japaneseName": "Yukinoohユキノオー",
+                    "classification": "Frosted Tree Pokémon",
+                    "abilities": [
+                      "Snow Warning",
+                      "Soundproof"
+                    ],
+                    "baseHeight": 2.2,
+                    "baseWeight": 135.5,
+                    "baseHp": 90,
+                    "baseAttack": 132,
+                    "baseSpAttack": 132,
+                    "baseDefense": 105,
+                    "baseSpDefense": 105,
+                    "baseSpeed": 30,
+                    "captureRate": 60,
+                    "isLegendary": false,
+                    "imgUrl": "./images/abomasnow.png",
+                    "primaryType": "grass",
+                    "secondaryType": "ice"
+                  }
+                ]
+              }
     post:
       description: Creates a resource on the route's collection.
       tags:
@@ -221,10 +439,48 @@ paths:
         content:
           'application/json':
             schema:
-              $ref: '#/components/schemas/Trainer'
+              $ref: '#/components/schemas/PokemonType'
+            examples:
+              partial:
+                value: {
+                  "id": "804",
+                  "name": "New Pokemon Type",
+                  "pokedexNumber": 999
+                }
+                description: Partial POST example
+              min:
+                value: { }
+                description: Minimum POST example
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "804",
+                  "name": "New Pokemon Type",
+                  "created": null,
+                  "lastUpDate": "2024-05-13T08:07:50.212596Z",
+                  "pokedexNumber": 999,
+                  "generation": 0,
+                  "japaneseName": null,
+                  "classification": null,
+                  "abilities": null,
+                  "baseHeight": 0.0,
+                  "baseWeight": 0.0,
+                  "baseHp": 0,
+                  "baseAttack": 0,
+                  "baseSpAttack": 0,
+                  "baseDefense": 0,
+                  "baseSpDefense": 0,
+                  "baseSpeed": 0,
+                  "captureRate": 0,
+                  "isLegendary": false,
+                  "imgUrl": null,
+                  "primaryType": null,
+                  "secondaryType": null
+                }
         400:
           description: Bad request
         405:
@@ -245,6 +501,33 @@ paths:
       responses:
         200:
           description: OK
+          content:
+            'application/json':
+              example:
+                {
+                  "id": "804",
+                  "name": "Modified Pokemon Type",
+                  "created": "2024-05-13T08:04:03.186221Z",
+                  "lastUpDate": "2024-05-13T08:04:03.186308Z",
+                  "pokedexNumber": 1000,
+                  "generation": 0,
+                  "japaneseName": null,
+                  "classification": "The most powerful pokemon",
+                  "abilities": null,
+                  "baseHeight": 0.0,
+                  "baseWeight": 0.0,
+                  "baseHp": 0,
+                  "baseAttack": 0,
+                  "baseSpAttack": 0,
+                  "baseDefense": 0,
+                  "baseSpDefense": 0,
+                  "baseSpeed": 0,
+                  "captureRate": 0,
+                  "isLegendary": false,
+                  "imgUrl": null,
+                  "primaryType": null,
+                  "secondaryType": null
+                }
         404:
           description: Not found
     put:
@@ -264,7 +547,17 @@ paths:
         content:
           'application/json':
             schema:
-              type: object
+              $ref: '#/components/schemas/PokemonType'
+            examples:
+              partial:
+                value: {
+                  "name": "Modified Pokemon Type",
+                  "pokedexNumber": 1000
+                }
+                description: Partial PUT example
+              min:
+                value: { }
+                description: Minimum PUT example
       responses:
         200:
           description: OK
@@ -305,44 +598,29 @@ components:
         id:
           type: string
           minLength: 1
-        type:
+        created:
           type: string
-          enum:
-            - trainer
-        meta:
-          type: object
-          properties:
-            creation:
-              type: string
-              format: date-time
-            lastUpdate:
-              type: string
-              format: date-time
-        data:
-          type: object
-          properties:
-            name:
-              type: string
-              minLength: 1
-            profileUrl:
-              type: string
-              format: uri
-            pokemon:
-              type: array
-              items:
-                type: string
-                minLength: 1
-            party:
-              type: array
-              items:
-                type: string
-                minLength: 1
-        links:
-          additionalProperties:
-            type: array
-            items:
-              type: string
-              format: uri
+          format: date-time
+        lastUpdate:
+          type: string
+          format: date-time
+        name:
+          type: string
+          minLength: 1
+        profileUrl:
+          type: string
+          format: uri
+        pokemon:
+          type: array
+          items:
+            type: string
+            minLength: 1
+        party:
+          type: array
+          items:
+            type: string
+            minLength: 1
+
     Pokemon:
       description: Schema describing the overall shape of pokemon resources.
       type: object
@@ -350,50 +628,22 @@ components:
         id:
           type: string
           minLength: 1
-        type:
+        created:
           type: string
-          enum:
-            - pokemon
-        meta:
-          type: object
-          properties:
-            creation:
-              type: string
-              format: date-time
-            lastUpdate:
-              type: string
-              format: date-time
-        data:
-          type: object
-          properties:
-            name:
-              type: string
-              minLength: 1
-            height:
-              type: number
-            weight:
-              type: number
-            hp:
-              type: number
-            attack:
-              type: number
-            spAttack:
-              type: number
-            defense:
-              type: number
-            spDefense:
-              type: number
-            speed:
-              type: number
-            pokemonType:
-              type: string
-              minLength: 1
-        links:
-          additionalProperties:
-            type: array
-            items:
-              type: string
-              format: uri
+          format: date-time
+        lastUpdate:
+          type: string
+          format: date-time
+        name:
+          type: string
+          minLength: 1
+        pokemonType:
+          type: string
+          minLength: 1
+        trainerId:
+          type: string
+          minLength: 1
+
     PokemonType:
       description: Schema describing the overall shape of pokemon type resources.
       type: object
@@ -401,96 +651,101 @@ components:
         id:
           type: string
           minLength: 1
-        type:
+        created:
+          type: string
+          format: date-time
+        lastUpdate:
+          type: string
+          format: date-time
+        name:
+          type: string
+          minLength: 1
+        pokedexNumber:
+          type: number
+          minimum: 0
+        generation:
+          type: number
+          minimum: 0
+        japaneseName:
+          type: string
+        classification:
+          type: string
+        abilities:
+          type: array
+          items:
+            type: string
+            minLength: 1
+        baseHeight:
+          type: number
+          minimum: 0
+        baseWeight:
+          type: number
+          minimum: 0
+        baseHp:
+          type: number
+          minimum: 0
+        baseAttack:
+          type: number
+          minimum: 0
+        baseSpAttack:
+          type: number
+          minimum: 0
+        baseDefense:
+          type: number
+          minimum: 0
+        baseSpDefense:
+          type: number
+          minimum: 0
+        baseSpeed:
+          type: number
+          minimum: 0
+        captureRate:
+          type: number
+          minimum: 0
+        isLegendary:
+          type: boolean
+        imgUrl:
+          type: string
+          format: uri
+        primaryType:
+          type: string
+          enum:
+            - bug
+            - dark
+            - dragon
+            - electric
+            - fairy
+            - fighting
+            - fire
+            - flying
+            - ghost
+            - grass
+            - ground
+            - ice
+            - normal
+            - poison
+            - psychic
+            - rock
+            - steel
+            - water
+        secondaryType:
           type: string
           enum:
-            - pokemonType
-        meta:
-          type: object
-          properties:
-            creation:
-              type: string
-              format: date-time
-            lastUpdate:
-              type: string
-              format: date-time
-        data:
-          type: object
-          properties:
-            name:
-              type: string
-              minLength: 1
-            pokedexNumber:
-              type: number
-              minimum: 0
-            generation:
-              type: number
-              minimum: 0
-            japaneseName:
-              type: string
-            classification:
-              type: string
-            abilities:
-              type: array
-              items:
-                type: string
-                minLength: 1
-            baseHeight:
-              type: number
-              minimum: 0
-            baseWeight:
-              type: number
-              minimum: 0
-            baseHp:
-              type: number
-              minimum: 0
-            baseAttack:
-              type: number
-              minimum: 0
-            baseSpAttack:
-              type: number
-              minimum: 0
-            baseDefense:
-              type: number
-              minimum: 0
-            baseSpDefense:
-              type: number
-              minimum: 0
-            baseSpeed:
-              type: number
-              minimum: 0
-            captureRate:
-              type: number
-              minimum: 0
-            isLegendary:
-              type: boolean
-            imgUrl:
-              type: string
-              format: uri
-            primaryType:
-              type: string
-              enum:
-                - BUG
-                - DARK
-                - DRAGON
-                - ELECTRIC
-                - FAIRY
-                - FIGHTING
-                - FIRE
-                - FLYING
-                - GHOST
-                - GRASS
-                - GROUND
-                - ICE
-                - NORMAL
-                - POISON
-                - PSYCHIC
-                - ROCK
-                - STEEL
-                - WATER
-        links:
-          additionalProperties:
-            type: array
-            items:
-              type: string
-              format: uri
+            - bug
+            - dark
+            - dragon
+            - electric
+            - fairy
+            - fighting
+            - fire
+            - flying
+            - ghost
+            - grass
+            - ground
+            - ice
+            - normal
+            - poison
+            - psychic
+            - rock
+            - steel
+            - water

design/requests/requests-pokemon-types.http

+###
+GET http://localhost:8080/pokemon/api/pokemonTypes
+
+###
+GET http://localhost:8080/pokemon/api/pokemonTypes?pageSize=1&pageNumber=1
+
+###
+GET http://localhost:8080/pokemon/api/pokemonTypes/1
+
+###
+POST http://localhost:8080/pokemon/api/pokemonTypes
+Content-Type: application/json
+
+{}
+
+###
+# Run this after creating a new pokemon type
+PUT http://localhost:8080/pokemon/api/pokemonTypes/802
+Content-Type: application/json
+
+{
+  "id": "802",
+  "name": "Modified Pokemon Type"
+}
+
+###
+# Run this after creating a new pokemon type
+DELETE http://localhost:8080/pokemon/api/pokemonTypes/802

design/requests/requests-pokemon.http

+###
+GET http://localhost:8080/pokemon/api/pokemon
+
+###
+# Run rhis after implementing pagination
+GET http://localhost:8080/pokemon/api/pokemon?pageSize=1&pageNumber=1
+
+###
+# Run rhis after implementing sorting
+GET http://localhost:8080/pokemon/api/pokemon?sortBy=name
+
+###
+# If you run this before creating a pokemon, it should return a 404 error
+GET http://localhost:8080/pokemon/api/pokemon/1
+
+###
+POST http://localhost:8080/pokemon/api/pokemon
+Content-Type: application/json
+
+{
+  "name": "My new pokemon",
+  "pokemonType": "1",
+  "trainerId": "1"
+}
+
+###
+# Run this after creating a new pokemon
+PUT http://localhost:8080/pokemon/api/pokemon/1
+Content-Type: application/json
+
+{
+  "id": "1",
+  "name": "My modified pokemon",
+  "pokemonType": "1",
+  "trainerId": "2"
+}
+
+###
+# Run this after creating a new pokemon
+DELETE http://localhost:8080/pokemon/api/pokemon/1

design/requests/requests-trainers.http

+###
+GET http://localhost:8080/pokemon/api/trainers
+
+###
+GET http://localhost:8080/pokemon/api/trainers?pageSize=1&pageNumber=1
+
+###
+GET http://localhost:8080/pokemon/api/trainers/1
+
+###
+POST http://localhost:8080/pokemon/api/trainers
+Content-Type: application/json
+
+{}
+
+###
+# Run this after creating a new trainer
+PUT http://localhost:8080/pokemon/api/trainers/5
+Content-Type: application/json
+
+{
+  "id": "5",
+  "name": "Ash Ketchum"
+}
+
+###
+# Run this after creating a new trainer
+DELETE http://localhost:8080/pokemon/api/trainers/5

design/system-design.md

 ## Class Diagram
 
-![](/design/models/Class%20Diagram.png)
+NOTE: this diagram has been simplified in the implementation and several fields have been omitted.
+
+![](./models/Class%20Diagram.png)

meetings/practical-session-3.md

+# Practical Session 3 - Guides and Tips
+
+## Changing the application name on Tomcat
+
+As we are using IntelliJ to build and send our application to the Tomcat server, we need to change the _Running Configurations_ in order to set the base route this application. For example, when using `/pokemon` as the base route, all other routes will be affected like `/pokemon/pokemonTypes.html` and `/pokemon/api/pokemonTypes`. To change this, please set the field _Application context_ under the tab _Deployment_ to `/pokemon`.
+
+![](./running-configurations.png)
+
+## Checkout new branch
+
+In order to retrieve the code for the exercises of the practical session, perform the step below on your git client. Here we'll be using IntelliJ's git client:
+
+1. Find or list the remote list of your git client
+
+    ![](./intellij-git-remote.png)
+
+2. Fetch from the remote repository containing the original project all updates
+
+    ![](./intellij-git-fetch-remote.png)
+
+3. Checkout the branch `practical-session-3` and start working on it
+
+    ![](./intellij-git-checkout-branch.png)
+
+4. After committing your changes, push the branch to the upstream (i.e., to your fork on GitLab)
+
+    ![](./intellij-git-push.png)
+
+5. On GitLab, open a new Merge Request
+
+Work on implementing the issues tagged as both `feature-request` and `practical-session-3`
+
+## Running HTTP request on IntelliJ
+
+With IntelliJ, you can create files ending with `.http` to write and run requests directly from the IDE. You can find sample files [here](./../design/requests) and the full documentation [here](https://www.jetbrains.com/help/idea/http-client-in-product-code-editor.html).
+
+![](./http-client.animated.gif)
+
+
+## REST API documentations with OpenAPI
+
+OpenAPI is a standard for documenting REST APIs in JSON (or YAML). On IntelliJ, you can open the [our OpenAPI specification](./../design/open-api.yaml) and check all routes implemented or to be implemented, including examples.
+
+![](./open-api.png)

pom.xml

@@ -7,7 +7,7 @@
     <groupId>nl.utwente.mod4</groupId>
     <artifactId>pokemon</artifactId>
     <version>1.0-SNAPSHOT</version>
-    <name>mod4-wp-2023-2024-pokemon</name>
+    <name>pokemon</name>
     <packaging>war</packaging>
 
     <properties>

src/main/java/nl/utwente/mod4/pokemon/InitializationListener.java

+package nl.utwente.mod4.pokemon;
+
+import jakarta.servlet.ServletContextEvent;
+import jakarta.servlet.ServletContextListener;
+import jakarta.servlet.annotation.WebListener;
+import nl.utwente.mod4.pokemon.dao.PokemonTypeDao;
+import nl.utwente.mod4.pokemon.dao.TrainerDao;
+
+import java.io.IOException;
+
+@WebListener
+public class InitializationListener implements ServletContextListener {
+    @Override
+    public void contextInitialized(ServletContextEvent sce) {
+        System.out.println("Initializing PokeApp...");
+        try {
+            PokemonTypeDao.INSTANCE.load();
+            TrainerDao.INSTANCE.load();
+        } catch (IOException e) {
+            System.err.println("Error while loading data.");
+            e.printStackTrace();
+        }
+        System.out.println("PokeApp initialized.");
+    }
+
+    @Override
+    public void contextDestroyed(ServletContextEvent sce) {
+        System.out.println("Shutting down PokeApp...");
+        try {
+            PokemonTypeDao.INSTANCE.save();
+            TrainerDao.INSTANCE.save();
+        } catch (IOException e) {
+            System.err.println("Error while saving data.");
+            e.printStackTrace();
+        }
+        System.out.println("PokeApp shutdown.");
+    }
+
+}