Add in erro handeling forback end

backend/src/app.ts

@@ -3,6 +3,8 @@ import { json } from 'body-parser'
 import { Sequelize, Op, QueryTypes } from 'sequelize'
 import { database, Character, Game, Pick, App } from './db'
 import { OrderByParser, FilterParser } from './tokenizer'
+import { addGameApis } from './gameservice'
+import { addCharacterApis } from './characterservice'
 
 const app = express()
 const jsonParser = json()
@@ -14,6 +16,9 @@ app.get('/', (req, res) => {
   res.send('Hello World!')
 })
 
+addGameApis(app, jsonParser)
+addCharacterApis(app, jsonParser)
+
 app.post('/api/serverstats/gamestats', jsonParser, async (req, res) => {
   const monthId = req.body.monthId
   let startSeconds = 0
@@ -91,9 +96,7 @@ app.post('/api/serverstats/rolestats', jsonParser, async (req, res) => {
     picks.forEach((character, characterNum) => {
       const role = character.dataValues.role
       // Count role application
-      pickedCharacterCount.set(
-        role, (pickedCharacterCount.get(role) || 0) + 1
-      )
+      pickedCharacterCount.set(role, (pickedCharacterCount.get(role) || 0) + 1)
     })
 
     appls.forEach((character, characterNum) => {
@@ -105,9 +108,7 @@ app.post('/api/serverstats/rolestats', jsonParser, async (req, res) => {
       }
       activeCharacters.get(role).add(charId)
       // Count role application
-      appedCharacterCount.set(
-        role, (appedCharacterCount.get(role) || 0) + 1
-      )
+      appedCharacterCount.set(role, (appedCharacterCount.get(role) || 0) + 1)
     })
   })
 
@@ -137,94 +138,6 @@ app.post('/api/serverstats/rolestats', jsonParser, async (req, res) => {
   res.send(result)
 })
 
-app.get('/api/character/:characterId', async (req, res) => {
-  res.send(await Character.findOne({ where: { id: req.params['characterId'] } }))
-})
-
-app.post('/api/character', jsonParser, async (req, res) => {
-  const page = req.body.page
-  const orderBy = req.body.orderBy ? obp.parse(req.body.orderBy) : ['id']
-  const count = req.body.count
-  const filter = req.body.filter ? fp.parse(req.body.filter) : {}
-
-  const characterData = await Character.findAll({
-    offset: page * count,
-    limit: count,
-    order: orderBy,
-    where: filter
-  })
-  const pageCount = Math.ceil(
-    (await Character.count({
-      where: filter
-    })) / count
-  )
-
-  res.setHeader('Content-Type', 'application/json')
-  res.send({ characterData, pageCount })
-})
-
-app.get('/api/game/:gameId', async (req, res) => {
-  res.send(await Game.findOne({ where: { id: req.params['gameId'] } }))
-})
-
-app.post('/api/game', jsonParser, async (req, res) => {
-  const page = req.body.page || 0
-  const orderBy = req.body.orderBy ? obp.parse(req.body.orderBy) : ['id']
-  const count = req.body.count || 10
-  const filter = req.body.filter ? fp.parse(req.body.filter) : {}
-
-  const gameData = await Game.findAll({
-    offset: page * count,
-    limit: count,
-    order: orderBy,
-    where: filter
-  })
-  const pageCount = Math.ceil(
-    (await Game.count({
-      where: filter
-    })) / count
-  )
-
-  res.setHeader('Content-Type', 'application/json')
-  res.send({ gameData, pageCount })
-})
-
-app.get('/api/game/:gameId', async (req, res) => {
-  const game = await Game.findOne({ where: { id: req.params['gameId'] } })
-  res.send(game)
-})
-
-app.post('/api/game/:gameId/apps', async (req, res) => {
-  const apps = await App.findAll({ where: { gameId: req.params['gameId'] } })
-  res.send(apps)
-})
-
-app.post('/api/character/:characterId/apps', async (req, res) => {
-  const apps = await App.findAll({ where: { characterId: req.params['characterId'] } })
-  res.send(apps)
-})
-
-app.post('/api/game/:gameId/picks', async (req, res) => {
-  const picks = await Pick.findAll({ where: { gameId: req.params['gameId'] } })
-  res.send(picks)
-})
-
-app.post('/api/character/:characterId/picks', async (req, res) => {
-  const picks = await Pick.findAll({ where: { characterId: req.params['characterId'] } })
-  res.send(picks)
-})
-
-app.post('/api/character/:characterId/gameHistory', async (req, res) => {
-  const gameHistory = await Character.findOne({
-    include: [
-      { model: Game, as: 'characterPickedForGame' },
-      { model: Game, as: 'characterAppliedForGame' }
-    ],
-    where: { id: req.params['characterId'] }
-  })
-  res.send(gameHistory)
-})
-
 app.listen(port, async () => {
   await database.authenticate()
   return console.log(`Express is listening at http://localhost:${port}`)

backend/src/characterservice.ts

@@ -0,0 +1,97 @@
+import { database, Character, Game, Pick, App } from './db'
+import { OrderByParser, FilterParser, ParsingError } from './tokenizer'
+
+export function addCharacterApis(app, jsonParser) {
+  app.get('/api/character/:characterId', async (req, res) => {
+    try {
+      const character = await Character.findOne({
+        where: { id: req.params['characterId'] }
+      })
+      if (character) {
+        res.send(character)
+      } else {
+        res.status(404).send('Cannot find character.')
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+
+  app.post('/api/character', jsonParser, async (req, res) => {
+    try {
+      const fp = new FilterParser()
+      const obp = new OrderByParser()
+
+      const page = req.body.page
+      const orderBy = req.body.orderBy ? obp.parse(req.body.orderBy) : ['id']
+      const count = req.body.count
+      const filter = req.body.filter ? fp.parse(req.body.filter) : {}
+
+      const characterData = await Character.findAll({
+        offset: page * count,
+        limit: count,
+        order: orderBy,
+        where: filter
+      })
+      const pageCount = Math.ceil(
+        (await Character.count({
+          where: filter
+        })) / count
+      )
+
+      res.setHeader('Content-Type', 'application/json')
+      res.send({ characterData, pageCount })
+    } catch (e) {
+      if (e instanceof ParsingError) {
+        res.status(400).send('Could not parse filter.')
+      } else {
+        res.status(500).send(e)
+      }
+    }
+  })
+
+  app.post('/api/character/:characterId/apps', async (req, res) => {
+    try {
+      const apps = await App.findAll({ where: { characterId: req.params['characterId'] } })
+      if (apps) {
+        res.send(apps)
+      } else {
+        res.status(400).send('Could not find apps.')
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+
+  app.post('/api/character/:characterId/picks', async (req, res) => {
+    try {
+      const picks = await Pick.findAll({ where: { characterId: req.params['characterId'] } })
+      if (picks) {
+        res.send(picks)
+      } else {
+        res.status(400).send('Could not find picks.')
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+
+  app.post('/api/character/:characterId/gameHistory', async (req, res) => {
+    try {
+      const gameHistory = await Character.findOne({
+        include: [
+          { model: Game, as: 'characterPickedForGame' },
+          { model: Game, as: 'characterAppliedForGame' }
+        ],
+        where: { id: req.params['characterId'] }
+      })
+      if (gameHistory) {
+        res.send(gameHistory)
+      } else {
+        res.status(404).send("Could nor find character.")
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+}

backend/src/gameservice.ts

@@ -0,0 +1,76 @@
+import { database, Character, Game, Pick, App } from './db'
+import { OrderByParser, FilterParser, ParsingError } from './tokenizer'
+
+export function addGameApis(app, jsonParser) {
+  app.get('/api/game/:gameId', async (req, res) => {
+    try {
+      const game = await Game.findOne({ where: { id: req.params['gameId'] } })
+      if (!game) {
+        res.status(404).send('Game Not Found')
+      } else {
+        res.send(game)
+      }
+    } catch (e) {
+      console.log(e)
+      res.status(500).send(e)
+    }
+  })
+
+  app.post('/api/game', jsonParser, async (req, res) => {
+    try {
+      const fp = new FilterParser()
+      const obp = new OrderByParser()
+      const page = req.body.page || 0
+      const orderBy = req.body.orderBy ? obp.parse(req.body.orderBy) : ['id']
+      const count = req.body.count || 10
+      const filter = req.body.filter ? fp.parse(req.body.filter) : {}
+
+      const gameData = await Game.findAll({
+        offset: page * count,
+        limit: count,
+        order: orderBy,
+        where: filter
+      })
+      const pageCount = Math.ceil(
+        (await Game.count({
+          where: filter
+        })) / count
+      )
+
+      res.setHeader('Content-Type', 'application/json')
+      res.send({ gameData, pageCount })
+    } catch (e) {
+      if (e instanceof ParsingError) {
+        res.status(400).send('Could not parse filter.')
+      } else {
+        res.status(500).send(e)
+      }
+    }
+  })
+
+  app.post('/api/game/:gameId/apps', async (req, res) => {
+    try {
+      const apps = await App.findAll({ where: { gameId: req.params['gameId'] } })
+      if (!apps) {
+        res.status(404).send('Apps not found.')
+      } else {
+        res.send(apps)
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+
+  app.post('/api/game/:gameId/picks', async (req, res) => {
+    try {
+      const picks = await Pick.findAll({ where: { gameId: req.params['gameId'] } })
+      if (!picks) {
+        res.status(404).send('Picks not found')
+      } else {
+        res.send(picks)
+      }
+    } catch (e) {
+      res.status(500).send(e)
+    }
+  })
+}

backend/src/tokenizer.ts

@@ -1,6 +1,8 @@
 import Tokenizr from 'tokenizr'
 import { Op } from 'sequelize'
 
+export { ParsingError } from 'tokenizr'
+
 export class OrderByParser {
   lexer = new Tokenizr()
 
@@ -50,8 +52,8 @@ export class OrderByParser {
 const openGroupRegex = /\(/
 const closeGroupRegex = /\)/
 const conjunctinoRegex = /AND|OR/
-const equalityRegex = /([a-zA-Z]+)\s?(=|!=|<|>|<=|>=|:)\s?([a-zA-Z\d]+)/
-const stringEqualityRegex = /([a-zA-Z]+)\s?(=|!=|<|>|<=|>=|:)\s?\"([a-zA-Z\d\s]*)\"/
+const equalityRegex = /([a-zA-Z]+)\s?(=|!=|<|>|<=|>=|:)\s?([a-zA-Z'"\d]+)/
+const stringEqualityRegex = /([a-zA-Z]+)\s?(=|!=|<|>|<=|>=|:)\s?\"([a-zA-Z'"\d\s]*)\"/
 const spacerRegex = /\s/
 
 const opperatorMap = {