Unify parsing into a util and add support for Date inside object

src/fetch/index.ts

@@ -1,10 +1,8 @@
 import type { Elysia } from 'elysia'
 
-import { isFormalDate, isISO8601, isShortenDate } from '../treaty2'
-
 import { EdenFetchError } from '../errors'
 import type { EdenFetch } from './types'
-import { isNumericString } from '../treaty/utils'
+import { parseStringifiedValue } from '../utils/parsingUtils'
 
 export type { EdenFetch } from './types'
 
@@ -75,27 +73,7 @@ export const edenFetch =
                         break
 
                     default:
-                        data = await response.text().then((data) => {
-                            if (isNumericString(data)) return +data
-                            if (data === 'true') return true
-                            if (data === 'false') return false
-
-                            if (!data) return data
-
-                            // Remove quote from stringified date
-                            const temp = data.replace(/"/g, '')
-
-                            if (
-                                isISO8601.test(temp) ||
-                                isFormalDate.test(temp) ||
-                                isShortenDate.test(temp)
-                            ) {
-                                const date = new Date(temp)
-                                if (!Number.isNaN(date.getTime())) return date
-                            }
-
-                            return data
-                        })
+                        data = await response.text().then(parseStringifiedValue)
                 }
 
                 if (response.status > 300)

src/treaty/index.ts

@@ -2,8 +2,9 @@ import type { Elysia, InputSchema } from 'elysia'
 
 import { EdenFetchError } from '../errors'
 
-import { composePath, isNumericString } from './utils'
+import { composePath } from './utils'
 import type { EdenTreaty } from './types'
+import { isNumericString } from '../utils/parsingUtils'
 
 export type { EdenTreaty } from './types'
 

src/treaty/utils.ts

@@ -13,6 +13,3 @@ export const composePath = (
 
     return `${domain}${path}?${q.slice(0, -1)}`
 }
-
-export const isNumericString = (message: string) =>
-    message.trim().length !== 0 && !Number.isNaN(Number(message))

src/treaty2/index.ts

@@ -2,9 +2,9 @@
 import type { Elysia } from 'elysia'
 import type { Treaty } from './types'
 
-import { composePath, isNumericString } from '../treaty/utils'
 import { EdenFetchError } from '../errors'
 import { EdenWS } from './ws'
+import { parseStringifiedValue } from '../utils/parsingUtils'
 
 const method = [
     'get',
@@ -22,13 +22,6 @@ const locals = ['localhost', '127.0.0.1', '0.0.0.0']
 
 const isServer = typeof FileList === 'undefined'
 
-export const isISO8601 =
-    /(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))/
-export const isFormalDate =
-    /(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)\s(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s\d{2}\s\d{4}\s\d{2}:\d{2}:\d{2}\sGMT(?:\+|-)\d{4}\s\([^)]+\)/
-export const isShortenDate =
-    /^(?:(?:(?:(?:0?[1-9]|[12][0-9]|3[01])[/\s-](?:0?[1-9]|1[0-2])[/\s-](?:19|20)\d{2})|(?:(?:19|20)\d{2}[/\s-](?:0?[1-9]|1[0-2])[/\s-](?:0?[1-9]|[12][0-9]|3[01]))))(?:\s(?:1[012]|0?[1-9]):[0-5][0-9](?::[0-5][0-9])?(?:\s[AP]M)?)?$/
-
 const isFile = (v: any) => {
     if (isServer) return v instanceof Blob
 
@@ -130,46 +123,7 @@ export async function* streamResponse(response: Response) {
 
             const data = decoder.decode(value)
 
-            if (isNumericString(data)) {
-                yield +data
-                continue
-            }
-
-            if (data === 'true') {
-                yield true
-                continue
-            }
-
-            if (data === 'false') {
-                yield false
-                continue
-            }
-
-            const start = data.charCodeAt(0)
-            const end = data.charCodeAt(data.length - 1)
-
-            if ((start === 123 && end === 125) || (start === 91 && end === 93))
-                try {
-                    yield JSON.parse(data)
-
-                    continue
-                } catch {}
-
-            // Remove quote from stringified date
-            const temp = data.replace(/"/g, '')
-
-            if (
-                isISO8601.test(temp) ||
-                isFormalDate.test(temp) ||
-                isShortenDate.test(temp)
-            ) {
-                const date = new Date(temp)
-                if (!Number.isNaN(date.getTime())) yield date
-
-                continue
-            }
-
-            yield data
+            yield parseStringifiedValue(data)
         }
     } finally {
         reader.releaseLock()
@@ -431,62 +385,50 @@ const createProxy = (
                             }
                     }
 
-                    if (data === null) {
-                        switch (
-                            response.headers.get('Content-Type')?.split(';')[0]
-                        ) {
-                            case 'text/event-stream':
-                                data = streamResponse(response)
-                                break
-
-                            case 'application/json':
-                                data = await response.json()
-                                break
-
-                            case 'application/octet-stream':
-                                data = await response.arrayBuffer()
-                                break
-
-                            case 'multipart/form-data':
-                                const temp = await response.formData()
-
-                                data = {}
-                                temp.forEach((value, key) => {
-                                    // @ts-ignore
-                                    data[key] = value
-                                })
-
-                                break
-
-                            default:
-                                data = await response.text().then((data) => {
-                                    if (isNumericString(data)) return +data
-                                    if (data === 'true') return true
-                                    if (data === 'false') return false
-
-                                    if (!data) return data
-
-                                    // Remove quote from stringified date
-                                    const temp = data.replace(/"/g, '')
-
-                                    if (
-                                        isISO8601.test(temp) ||
-                                        isFormalDate.test(temp) ||
-                                        isShortenDate.test(temp)
-                                    ) {
-                                        const date = new Date(temp)
-                                        if (!Number.isNaN(date.getTime()))
-                                            return date
-                                    }
-
-                                    return data
-                                })
+                    if (data !== null) {
+                        return {
+                            data,
+                            error,
+                            response,
+                            status: response.status,
+                            headers: response.headers
                         }
+                    }
 
-                        if (response.status >= 300 || response.status < 200) {
-                            error = new EdenFetchError(response.status, data)
-                            data = null
-                        }
+                    switch (
+                        response.headers.get('Content-Type')?.split(';')[0]
+                    ) {
+                        case 'text/event-stream':
+                            data = streamResponse(response)
+                            break
+
+                        case 'application/json':
+                            data = await response.json()
+                            break
+                        case 'application/octet-stream':
+                            data = await response.arrayBuffer()
+                            break
+
+                        case 'multipart/form-data':
+                            const temp = await response.formData()
+
+                            data = {}
+                            temp.forEach((value, key) => {
+                                // @ts-ignore
+                                data[key] = value
+                            })
+
+                            break
+
+                        default:
+                            data = await response
+                                .text()
+                                .then(parseStringifiedValue) // Since this change, if the string contains a stringified JSOn, it will be parsed as such. Is it OK?
+                    }
+
+                    if (response.status >= 300 || response.status < 200) {
+                        error = new EdenFetchError(response.status, data)
+                        data = null
                     }
 
                     return {

src/treaty2/ws.ts

@@ -1,6 +1,6 @@
 import type { InputSchema } from 'elysia'
 import type { Treaty } from './types'
-import { isNumericString } from '../treaty/utils'
+import { isNumericString } from '../utils/parsingUtils'
 
 const ISO8601DateString = /\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}.\d{3}Z/
 
@@ -67,23 +67,28 @@ export class EdenWS<in out Schema extends InputSchema<any> = {}> {
                     if (start === 91 || start === 123)
                         try {
                             data = JSON.parse(data, (key, value) => {
-                                if(typeof value === 'string' && ISO8601DateString.test(value)) {
+                                if (
+                                    typeof value === 'string' &&
+                                    ISO8601DateString.test(value)
+                                ) {
                                     const d = new Date(value)
-                                    if(!Number.isNaN(d.getTime())) 
-                                        return d
+                                    if (!Number.isNaN(d.getTime())) return d
                                 }
                                 return value
                             })
                         } catch {
                             // Not Empty
                         }
-
                     else if (isNumericString(data)) data = +data
                     else if (data === 'true') data = true
                     else if (data === 'false') data = false
                     else if (data === 'null') data = null
                     // Remove " before parsing
-                    else if (start === 34 && end === 34 && ISO8601DateString.test(data))
+                    else if (
+                        start === 34 &&
+                        end === 34 &&
+                        ISO8601DateString.test(data)
+                    )
                         data = new Date(data.substring(1, data.length - 1))
 
                     listener({

src/utils/parsingUtils.ts

@@ -0,0 +1,82 @@
+const isISO8601 =
+    /(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))/
+const isFormalDate =
+    /(?:Sun|Mon|Tue|Wed|Thu|Fri|Sat)\s(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s\d{2}\s\d{4}\s\d{2}:\d{2}:\d{2}\sGMT(?:\+|-)\d{4}\s\([^)]+\)/
+const isShortenDate =
+    /^(?:(?:(?:(?:0?[1-9]|[12][0-9]|3[01])[/\s-](?:0?[1-9]|1[0-2])[/\s-](?:19|20)\d{2})|(?:(?:19|20)\d{2}[/\s-](?:0?[1-9]|1[0-2])[/\s-](?:0?[1-9]|[12][0-9]|3[01]))))(?:\s(?:1[012]|0?[1-9]):[0-5][0-9](?::[0-5][0-9])?(?:\s[AP]M)?)?$/
+
+export const isNumericString = (message: string) =>
+    message.trim().length !== 0 && !Number.isNaN(Number(message))
+
+export const parseStringifiedDate = (value: any) => {
+    if (typeof value !== 'string') {
+        return null
+    }
+
+    // Remove quote from stringified date
+    const temp = value.replace(/"/g, '')
+
+    if (
+        isISO8601.test(temp) ||
+        isFormalDate.test(temp) ||
+        isShortenDate.test(temp)
+    ) {
+        const date = new Date(temp)
+
+        if (!Number.isNaN(date.getTime())) {
+            return date
+        }
+    }
+
+    return null
+}
+
+export const isStringifiedObject = (value: string) => {
+    const start = value.charCodeAt(0)
+    const end = value.charCodeAt(value.length - 1)
+
+    return (start === 123 && end === 125) || (start === 91 && end === 93)
+}
+
+export const parseStringifiedObject = (data: string) =>
+    JSON.parse(data, (_, value) => {
+        const date = parseStringifiedDate(value)
+
+        if (date) {
+            return date
+        }
+
+        return value
+    })
+
+export const parseStringifiedValue = (value: any) => {
+    if (!value) {
+        return value
+    }
+
+    if (isNumericString(value)) {
+        return +value
+    }
+
+    if (value === 'true') {
+        return true
+    }
+
+    if (value === 'false') {
+        return false
+    }
+
+    const date = parseStringifiedDate(value)
+
+    if (date) {
+        return date
+    }
+
+    if (isStringifiedObject(value)) {
+        try {
+            return parseStringifiedObject(value)
+        } catch {}
+    }
+
+    return value
+}

test/treaty2.test.ts

@@ -130,6 +130,7 @@ const app = new Elysia()
             date: t.Date()
         })
     })
+    .get('/dateObject', () => ({ date: new Date() }))
     .get(
         '/redirect',
         ({ set }) => (set.redirect = 'http://localhost:8083/true')
@@ -190,6 +191,12 @@ describe('Treaty2', () => {
         expect(data).toEqual(false)
     })
 
+    it.todo('parse object with date', async () => {
+        const { data } = await client.dateObject.get()
+
+        expect(data?.date).toBeInstanceOf(Date)
+    })
+
     it('post array', async () => {
         const { data } = await client.array.post(['a', 'b'])