frontend/src/App.tsx

@@ -1,12 +1,11 @@
 import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
 import { BrowserRouter, Navigate, Route, Routes, useLocation } from 'react-router-dom'
 
 import RouteBlockerOverlay from '@/components/RouteBlockerOverlay'
 import TopNav from '@/components/TopNav'
 import { Toaster } from '@/components/ui/toaster'
-import { API_BASE_URL } from '@/config'
+import { apiPost } from '@/lib/api'
 import NicoTagListPage from '@/pages/tags/NicoTagListPage'
 import NotFound from '@/pages/NotFound'
 import PostDetailPage from '@/pages/posts/PostDetailPage'
@@ -40,12 +39,11 @@ export default (() => {
 
   useEffect (() => {
     const createUser = async () => {
-      const res = await axios.post (`${ API_BASE_URL }/users`)
+      const data = await apiPost<{ code: string; user: User }> ('/users')
-      const data = res.data as { code: string; user: any }
       if (data.code)
 	{
 	  localStorage.setItem ('user_code', data.code)
-	  setUser (toCamel (data.user, { deep: true }) as User)
+	  setUser (data.user)
 	}
     }
 
@@ -55,10 +53,9 @@ export default (() => {
 	void (async () => {
 	  try
 	  {
-	    const res = await axios.post (`${ API_BASE_URL }/users/verify`, { code })
+	    const data = await apiPost<{ valid: boolean; user: User }> ('/users/verify', { code })
-	    const data = res.data as { valid: boolean, user: any }
 	    if (data.valid)
-	      setUser (toCamel (data.user, { deep: true }))
+	      setUser (data.user)
 	    else
 	      await createUser ()
 	  }

frontend/src/components/PostFormTagsArea.tsx

@@ -1,11 +1,9 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useRef, useState } from 'react'
 
 import TagSearchBox from '@/components/TagSearchBox'
 import Label from '@/components/common/Label'
 import TextArea from '@/components/common/TextArea'
-import { API_BASE_URL } from '@/config'
+import { apiGet } from '@/lib/api'
 
 import type { FC, SyntheticEvent } from 'react'
 
@@ -59,8 +57,7 @@ export default (({ tags, setTags }: Props) => {
   const recompute = async (pos: number, v: string = tags) => {
     const { start, end, token } = getTokenAt (v, pos)
     setBounds ({ start, end })
-    const res = await axios.get (`${ API_BASE_URL }/tags/autocomplete`, { params: { q: token } })
+    const data = await apiGet<Tag[]> ('/tags/autocomplete', { params: { q: token } })
-    const data = toCamel (res.data as any, { deep: true }) as Tag[]
     setSuggestions (data.filter (t => t.postCount > 0))
     setSuggestionsVsbl (suggestions.length > 0)
   }

frontend/src/components/TagDetailSidebar.tsx

@@ -6,8 +6,6 @@ import { DndContext,
 	 useSensor,
 	 useSensors } from '@dnd-kit/core'
 import { restrictToWindowEdges } from '@dnd-kit/modifiers'
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { AnimatePresence, motion } from 'framer-motion'
 import { useEffect, useRef, useState } from 'react'
 
@@ -19,8 +17,8 @@ import SectionTitle from '@/components/common/SectionTitle'
 import SubsectionTitle from '@/components/common/SubsectionTitle'
 import SidebarComponent from '@/components/layout/SidebarComponent'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL } from '@/config'
 import { CATEGORIES } from '@/consts'
+import { apiDelete, apiGet, apiPatch, apiPost } from '@/lib/api'
 
 import type { DragEndEvent } from '@dnd-kit/core'
 import type { FC, MutableRefObject, ReactNode } from 'react'
@@ -132,10 +130,7 @@ const changeCategory = async (
     tagId:    number,
     category: Category,
 ): Promise<void> => {
-  await axios.patch (
+  await apiPatch (`/tags/${ tagId }`, { category })
-      `${ API_BASE_URL }/tags/${ tagId }`,
-      { category },
-      { headers: { 'X-Transfer-Code': localStorage.getItem ('user_code') ?? '' } })
 }
 
 
@@ -170,12 +165,7 @@ export default (({ post }: Props) => {
     if (!(post))
       return
 
-    const res = await axios.get (
+    setTags (buildTagByCategory (await apiGet<Post> (`/posts/${ post.id }`)))
-	`${ API_BASE_URL }/posts/${ post.id }`,
-	{ headers: { 'X-Transfer-Code': localStorage.getItem ('user_code') ?? '' } })
-    const data = toCamel (res.data as any, { deep: true }) as Post
-
-    setTags (buildTagByCategory (data))
   }
 
   const onDragEnd = async (e: DragEndEvent) => {
@@ -216,16 +206,9 @@ export default (({ post }: Props) => {
 	    return
 
 	  if (fromParentId != null)
-	    {
+	    await apiDelete (`/tags/${ fromParentId }/children/${ childId }`)
-	      await axios.delete (
-		  `${ API_BASE_URL }/tags/${ fromParentId }/children/${ childId }`,
-		  { headers: { 'X-Transfer-Code': localStorage.getItem ('user_code') ?? '' } })
-	    }
 
-	  await axios.post (
+	  await apiPost (`/tags/${ parentId }/children/${ childId }`, { })
-	      `${ API_BASE_URL }/tags/${ parentId }/children/${ childId }`,
-	      { },
-	      { headers: { 'X-Transfer-Code': localStorage.getItem ('user_code') ?? '' } })
 
 	  await reloadTags ()
 	  toast ({
@@ -245,11 +228,7 @@ export default (({ post }: Props) => {
 	    await changeCategory (childId, cat)
 
 	  if (fromParentId != null)
-	    {
+	    await apiDelete (`/tags/${ fromParentId }/children/${ childId }`)
-	      await axios.delete (
-		  `${ API_BASE_URL }/tags/${ fromParentId }/children/${ childId }`,
-		  { headers: { 'X-Transfer-Code': localStorage.getItem ('user_code') ?? '' } })
-	    }
 
 	  const fromParent = fromParentId == null ? null : findTag (tags, fromParentId)
 

frontend/src/components/TagLink.tsx

@@ -1,16 +1,16 @@
-import axios from 'axios'
 import { useEffect, useState } from 'react'
 
 import PrefetchLink from '@/components/PrefetchLink'
-import { API_BASE_URL } from '@/config'
 import { LIGHT_COLOUR_SHADE, DARK_COLOUR_SHADE, TAG_COLOUR } from '@/consts'
+import { apiGet } from '@/lib/api'
 import { cn } from '@/lib/utils'
 
 import type { ComponentProps, FC, HTMLAttributes } from 'react'
 
 import type { Tag } from '@/types'
 
-type CommonProps = { tag:         Tag
+type CommonProps = { 
+    tag:        Tag
     nestLevel?: number
     withWiki?:  boolean
     withCount?: boolean
@@ -26,7 +26,9 @@ type PropsWithoutLink =
     & { linkFlg: false }
     & Partial<HTMLAttributes<HTMLSpanElement>>
 
-type Props = PropsWithLink | PropsWithoutLink
+type Props =
+    | PropsWithLink
+    | PropsWithoutLink
 
 
 export default (({ tag,
@@ -49,7 +51,7 @@ export default (({ tag,
 
     try
     {
-      await axios.get (`${ API_BASE_URL }/wiki/title/${ encodeURIComponent (tagName) }/exists`)
+      await apiGet (`/wiki/title/${ encodeURIComponent (tagName) }/exists`)
       setHavingWiki (true)
     }
     catch

frontend/src/components/TagSearch.tsx

@@ -1,13 +1,11 @@
-import axios from 'axios'
+import { useEffect, useState } from 'react'
-import toCamel from 'camelcase-keys'
-import React, { useEffect, useState } from 'react'
 import { useNavigate, useLocation } from 'react-router-dom'
 
-import { API_BASE_URL } from '@/config'
+import { apiGet } from '@/lib/api'
 
 import TagSearchBox from './TagSearchBox'
 
-import type { FC } from 'react'
+import type { ChangeEvent, FC, KeyboardEvent } from 'react'
 
 import type { Tag } from '@/types'
 
@@ -21,7 +19,7 @@ export default (() => {
   const [suggestions, setSuggestions] = useState<Tag[]> ([])
   const [suggestionsVsbl, setSuggestionsVsbl] = useState (false)
 
-  const whenChanged = async (ev: React.ChangeEvent<HTMLInputElement>) => {
+  const whenChanged = async (ev: ChangeEvent<HTMLInputElement>) => {
     setSearch (ev.target.value)
 
     const q = ev.target.value.trim ().split (' ').at (-1)
@@ -31,14 +29,13 @@ export default (() => {
 	return
       }
 
-    const res = await axios.get (`${ API_BASE_URL }/tags/autocomplete`, { params: { q } })
+    const data = await apiGet<Tag[]> ('/tags/autocomplete', { params: { q } })
-    const data = toCamel (res.data, { deep: true }) as Tag[]
     setSuggestions (data.filter (t => t.postCount > 0))
     if (suggestions.length > 0)
       setSuggestionsVsbl (true)
   }
 
-  const handleKeyDown = (ev: React.KeyboardEvent<HTMLInputElement>) => {
+  const handleKeyDown = (ev: KeyboardEvent<HTMLInputElement>) => {
     switch (ev.key)
     {
     case 'ArrowDown':

frontend/src/components/TagSidebar.tsx

@@ -1,4 +1,3 @@
-import axios from 'axios'
 import { AnimatePresence, motion } from 'framer-motion'
 import { useEffect, useState } from 'react'
 import { useLocation, useNavigate } from 'react-router-dom'
@@ -7,8 +6,8 @@ import TagLink from '@/components/TagLink'
 import TagSearch from '@/components/TagSearch'
 import SectionTitle from '@/components/common/SectionTitle'
 import SidebarComponent from '@/components/layout/SidebarComponent'
-import { API_BASE_URL } from '@/config'
 import { CATEGORIES } from '@/consts'
+import { apiGet } from '@/lib/api'
 
 import type { FC, MouseEvent } from 'react'
 
@@ -77,10 +76,10 @@ export default (({ posts, onClick }: Props) => {
 		 void ((async () => {
 		   try
 		   {
-		     const { data } = await axios.get (`${ API_BASE_URL }/posts/random`,
+		     const data = await apiGet<Post> ('/posts/random',
 			 { params: { tags: tagsQuery.split (' ').filter (e => e !== '').join (' '),
 				     match: (anyFlg ? 'any' : 'all') } })
-		     navigate (`/posts/${ (data as Post).id }`)
+		     navigate (`/posts/${ data.id }`)
 		   }
 		   catch
 		   {

frontend/src/components/WikiBody.tsx

@@ -1,5 +1,3 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useEffect, useMemo, useState } from 'react'
 import ReactMarkdown from 'react-markdown'
 import remarkGFM from 'remark-gfm'
@@ -7,7 +5,7 @@ import remarkGFM from 'remark-gfm'
 import PrefetchLink from '@/components/PrefetchLink'
 import SectionTitle from '@/components/common/SectionTitle'
 import SubsectionTitle from '@/components/common/SubsectionTitle'
-import { API_BASE_URL } from '@/config'
+import { apiGet } from '@/lib/api'
 import remarkWikiAutoLink from '@/lib/remark-wiki-autolink'
 
 import type { FC } from 'react'
@@ -43,8 +41,7 @@ export default (({ title, body }: Props) => {
     void (async () => {
       try
       {
-	const res = await axios.get (`${ API_BASE_URL }/wiki`)
+	const data = await apiGet<WikiPage[]> ('/wiki')
-	const data: WikiPage[] = toCamel (res.data as any, { deep: true })
 	setPageNames (data.map (page => page.title).sort ((a, b) => b.length - a.length))
       }
       catch

frontend/src/components/users/InheritDialogue.tsx

@@ -1,5 +1,3 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useState } from 'react'
 
 import { Button } from '@/components/ui/button'
@@ -8,7 +6,7 @@ import { Dialog,
          DialogTitle } from '@/components/ui/dialog'
 import { Input } from '@/components/ui/input'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL } from '@/config'
+import { apiPost } from '@/lib/api'
 
 import type { User } from '@/types'
 
@@ -26,12 +24,12 @@ export default ({ visible, onVisibleChange, setUser }: Props) => {
 
     try
     {
-      const res = await axios.post (`${ API_BASE_URL }/users/verify`, { code: inputCode })
+      const data = await apiPost<{ valid: boolean; user: User }> (
-      const data = res.data as { valid: boolean; user: any }
+	  '/users/verify', { code: inputCode })
       if (data.valid)
 	{
 	  localStorage.setItem ('user_code', inputCode)
-	  setUser (toCamel (data.user, { deep: true }))
+	  setUser (data.user)
 	  toast ({ title: '引継ぎ成功!' })
 	  onVisibleChange (false)
 	}

frontend/src/components/users/UserCodeDialogue.tsx

@@ -1,11 +1,9 @@
-import axios from 'axios'
-
 import { Button } from '@/components/ui/button'
 import { Dialog,
 	 DialogContent,
 	 DialogTitle } from '@/components/ui/dialog'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL } from '@/config'
+import { apiPost } from '@/lib/api'
 
 import type { User } from '@/types'
 
@@ -23,10 +21,8 @@ export default ({ visible, onVisibleChange, user, setUser }: Props) => {
     if (!(confirm ('引継ぎコードを再発行しますか?\n再発行するとほかのブラウザからはログアウトされます．')))
       return
 
-    const res = await axios.post (`${ API_BASE_URL }/users/code/renew`, { }, { headers: {
+    const data = await apiPost<{ code: string }> ('/users/code/renew', { },
-	'Content-Type':     'multipart/form-data',
+	{ headers: { 'Content-Type': 'multipart/form-data' } })
-	'X-Transfer-Code':  localStorage.getItem ('user_code') || '' } })
-    const data = res.data as { code: string }
     if (data.code)
       {
 	localStorage.setItem ('user_code', data.code)

frontend/src/lib/api.ts

@@ -5,7 +5,8 @@ import { API_BASE_URL } from '@/config'
 
 type Opt = {
     params?:        Record<string, unknown>
-    headers?: Record<string, string> }
+    headers?:       Record<string, string>
+    responseType?:  'blob' }
 
 const client = axios.create ({ baseURL: API_BASE_URL })
 

frontend/src/pages/posts/PostNewPage.tsx

@@ -1,4 +1,3 @@
-import axios from 'axios'
 import { useEffect, useState, useRef } from 'react'
 import { Helmet } from 'react-helmet-async'
 import { useNavigate } from 'react-router-dom'
@@ -11,7 +10,8 @@ import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
 import { Button } from '@/components/ui/button'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiGet, apiPost } from '@/lib/api'
 import Forbidden from '@/pages/Forbidden'
 
 import type { FC } from 'react'
@@ -55,9 +55,7 @@ export default (({ user }: Props) => {
 
     try
     {
-      await axios.post (`${ API_BASE_URL }/posts`, formData, { headers: {
+      await apiPost ('/posts', formData, { headers: { 'Content-Type': 'multipart/form-data' } })
-	  'Content-Type':     'multipart/form-data',
-	  'X-Transfer-Code':  localStorage.getItem ('user_code') ?? '' } })
       toast ({ title: '投稿成功!' })
       navigate ('/posts')
     }
@@ -91,10 +89,7 @@ export default (({ user }: Props) => {
   const fetchTitle = async () => {
     setTitle ('')
     setTitleLoading (true)
-    const res = await axios.get (`${ API_BASE_URL }/preview/title`, {
+    const data = await apiGet<{ title: string }> ('/preview/title', { params: { url } })
-	params:   { url },
-	headers:  { 'X-Transfer-Code': localStorage.getItem ('user_code') || '' } })
-    const data = res.data as { title: string }
     setTitle (data.title || '')
     setTitleLoading (false)
   }
@@ -105,11 +100,8 @@ export default (({ user }: Props) => {
     setThumbnailLoading (true)
     if (thumbnailPreview)
       URL.revokeObjectURL (thumbnailPreview)
-    const res = await axios.get (`${ API_BASE_URL }/preview/thumbnail`, {
+    const data = await apiGet<Blob> ('/preview/thumbnail',
-	params:       { url },
+				     { params: { url }, responseType: 'blob' })
-	headers:      { 'X-Transfer-Code': localStorage.getItem ('user_code') || '' },
-	responseType: 'blob' })
-    const data = res.data as Blob
     const imageURL = URL.createObjectURL (data)
     setThumbnailPreview (imageURL)
     setThumbnailFile (new File ([data],

frontend/src/pages/tags/NicoTagListPage.tsx

@@ -1,5 +1,3 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useEffect, useRef, useState } from 'react'
 import { Helmet } from 'react-helmet-async'
 
@@ -8,7 +6,8 @@ import SectionTitle from '@/components/common/SectionTitle'
 import TextArea from '@/components/common/TextArea'
 import MainArea from '@/components/layout/MainArea'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiGet, apiPut } from '@/lib/api'
 
 import type { NicoTag, Tag, User } from '@/types'
 
@@ -29,10 +28,8 @@ export default ({ user }: Props) => {
   const loadMore = async (withCursor: boolean) => {
     setLoading (true)
 
-    const res = await axios.get (`${ API_BASE_URL }/tags/nico`, {
+    const data = await apiGet<{ tags: NicoTag[]; nextCursor: string }> (
-	params: { ...(withCursor ? { cursor } : { }) } })
+	'/tags/nico', { params: withCursor ? { cursor } : { } })
-    const data = toCamel (res.data as any, { deep: true }) as { tags:       NicoTag[]
-								nextCursor: string }
 
     setNicoTags (tags => [...(withCursor ? tags : []), ...data.tags])
     setCursor (data.nextCursor)
@@ -53,10 +50,8 @@ export default ({ user }: Props) => {
 	const formData = new FormData
 	formData.append ('tags', rawTags[id])
 
-	const res = await axios.put (`${ API_BASE_URL }/tags/nico/${ id }`, formData, { headers: {
+	const data = await apiPut<Tag[]> (`/tags/nico/${ id }`, formData,
-	    'Content-Type':     'multipart/form-data',
+				    { headers: { 'Content-Type': 'multipart/form-data' } })
-	    'X-Transfer-Code':  localStorage.getItem ('user_code') ?? '' } })
-	const data = toCamel (res.data as any, { deep: true }) as Tag[]
 	setNicoTags (nicoTags => {
 	  nicoTags.find (t => t.id === id)!.linkedTags = data
 	  return [...nicoTags]

frontend/src/pages/users/SettingPage.tsx

@@ -1,4 +1,3 @@
-import axios from 'axios'
 import { useEffect, useState } from 'react'
 import { Helmet } from 'react-helmet-async'
 
@@ -10,7 +9,8 @@ import InheritDialogue from '@/components/users/InheritDialogue'
 import UserCodeDialogue from '@/components/users/UserCodeDialogue'
 import { Button } from '@/components/ui/button'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiPut } from '@/lib/api'
 
 import type { User } from '@/types'
 
@@ -32,10 +32,9 @@ export default ({ user, setUser }: Props) => {
 
     try
     {
-      const res = await axios.put (`${ API_BASE_URL }/users/${ user.id }`, formData, {
+      const data = await apiPut<User> (
-	  headers: { 'Content-Type':     'multipart/form-data',
+	  `/users/${ user.id }`, formData,
-		     'X-Transfer-Code':  localStorage.getItem ('user_code') || '' } })
+	  { headers: { 'Content-Type': 'multipart/form-data' } })
-      const data = res.data as User
       setUser (user => ({ ...user, ...data }))
       toast ({ title: '設定を更新しました．' })
     }

frontend/src/pages/wiki/WikiDiffPage.tsx

@@ -1,12 +1,11 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
 import { Helmet } from 'react-helmet-async'
 import { useLocation, useParams } from 'react-router-dom'
 
 import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiGet } from '@/lib/api'
 import { cn } from '@/lib/utils'
 
 import type { WikiPageDiff } from '@/types'
@@ -25,8 +24,7 @@ export default () => {
 
   useEffect (() => {
     void (async () => {
-      const res = await axios.get (`${ API_BASE_URL }/wiki/${ id }/diff`, { params: { from, to } })
+      setDiff (await apiGet<WikiPageDiff> (`/wiki/${ id }/diff`, { params: { from, to } }))
-      setDiff (toCamel (res.data as any, { deep: true }) as WikiPageDiff)
     }) ()
   }, [])
 

frontend/src/pages/wiki/WikiEditPage.tsx

@@ -1,4 +1,3 @@
-import axios from 'axios'
 import MarkdownIt from 'markdown-it'
 import { useEffect, useState } from 'react'
 import { Helmet } from 'react-helmet-async'
@@ -7,7 +6,8 @@ import { useParams, useNavigate } from 'react-router-dom'
 
 import MainArea from '@/components/layout/MainArea'
 import { toast } from '@/components/ui/use-toast'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiGet, apiPut } from '@/lib/api'
 import Forbidden from '@/pages/Forbidden'
 
 import 'react-markdown-editor-lite/lib/index.css'
@@ -40,9 +40,8 @@ export default (({ user }: Props) => {
 
     try
     {
-      await axios.put (`${ API_BASE_URL }/wiki/${ id }`, formData, { headers: {
+      await apiPut (`/wiki/${ id }`, formData,
-	  'Content-Type':     'multipart/form-data',
+		    { headers: { 'Content-Type': 'multipart/form-data' } })
-	  'X-Transfer-Code':  localStorage.getItem ('user_code') ?? '' } })
       toast ({ title: '投稿成功!' })
       navigate (`/wiki/${ title }`)
     }
@@ -55,8 +54,7 @@ export default (({ user }: Props) => {
   useEffect (() => {
     void (async () => {
       setLoading (true)
-      const res = await axios.get (`${ API_BASE_URL }/wiki/${ id }`)
+      const data = await apiGet<WikiPage> (`/wiki/${ id }`)
-      const data = res.data as WikiPage
       setTitle (data.title)
       setBody (data.body)
       setLoading (false)

frontend/src/pages/wiki/WikiHistoryPage.tsx

@@ -1,12 +1,11 @@
-import axios from 'axios'
-import toCamel from 'camelcase-keys'
 import { useEffect, useState } from 'react'
 import { Helmet } from 'react-helmet-async'
 import { useLocation } from 'react-router-dom'
 
 import PrefetchLink from '@/components/PrefetchLink'
 import MainArea from '@/components/layout/MainArea'
-import { API_BASE_URL, SITE_TITLE } from '@/config'
+import { SITE_TITLE } from '@/config'
+import { apiGet } from '@/lib/api'
 
 import type { WikiPageChange } from '@/types'
 
@@ -20,9 +19,7 @@ export default () => {
 
   useEffect (() => {
     void (async () => {
-      const res = await axios.get (`${ API_BASE_URL }/wiki/changes`,
+      setChanges (await apiGet<WikiPageChange[]> ('/wiki/changes', { params: id ? { id } : { } }))
-				   { params: { ...(id ? { id } : { }) } })
-      setChanges (toCamel (res.data as any, { deep: true }) as WikiPageChange[])
     }) ()
   }, [location.search])