diff --git a/api.yml b/api.yml
index f51890c..07b8493 100644
--- a/api.yml
+++ b/api.yml
@@ -1,4 +1,4 @@
-openapi: "3.0.3"
+openapi: "3.1.0"
 info:
   title: EH Downloader API
   version: "1.0"
@@ -33,7 +33,7 @@ components:
           properties:
             data:
               type: object
-      example: {ok: true, status: 0, data: {}}
+      example: { ok: true, status: 0, data: {} }
     ApiResponseError:
       description: Api response with a error
       allOf:
@@ -59,6 +59,163 @@ components:
                     type: string
                 - type: string
                   description: The data of configuration
+    ConfigOptional:
+      description: Configuration of server
+      type: object
+      properties:
+        cookies:
+          type: string
+          description: Cookies
+        db_path:
+          type: string
+          description: The folder where the database is stored
+        ua:
+          type: string
+          description: User Agent
+        ex:
+          type: boolean
+          description: Whether to use exhentai.org
+        base:
+          type: string
+          description: Download location
+        max_task_count:
+          type: integer
+          description: Maximum number of parallel tasks
+        mpv:
+          type: boolean
+          description: Fetch page data from Multi-Page Viewer
+        max_retry_count:
+          type: integer
+          description: Maximum retry count
+        max_download_img_count:
+          type: integer
+          description: Maximum number of parallel downloads of images
+        download_original_img:
+          type: boolean
+          description: Whether to download original images
+        port:
+          type: integer
+          description: Listening port
+        export_zip_jpn_title:
+          type: boolean
+          description: Whether to use japanese title first when exporting zip
+        hostname:
+          type: string
+          description: Listening host
+        meili_host:
+          type: string
+          description: Meilisearch server host
+        meili_search_api_key:
+          type: string
+          description: Meilisearch API key for searching
+        meili_update_api_key:
+          type: string
+          description: Meilisearch API key for updating gallery metadata
+        ffmpeg_path:
+          type: string
+          description: The path to the ffmpeg binary
+        thumbnail_method:
+          $ref: "#/components/schemas/ThumbnailMethod"
+        thumbnail_dir:
+          type: string
+          description: The folder used to store thumbnails
+        remove_previous_gallery:
+          type: boolean
+          description: Whether to remove old galleries which replaced by new ones
+        img_verify_secret:
+          type: string
+          description: The secret of image verify
+        meili_hosts:
+          type: object
+          additionalProperties:
+            type: string
+          description: Meilisearch server hostname for specific domains
+        cors_credentials_hosts:
+          type: array
+          items:
+            type: string
+          description: The URL origins which are allowed to send CORS requests with credentials
+        flutter_frontend:
+          type: string
+          description: The path of flutter frontend
+        fetch_timeout:
+          type: integer
+          description: Fetch timeout in milliseconds
+        download_timeout:
+          type: integer
+          description: Download timeout in milliseconds
+        ffprobe_path:
+          type: string
+          description: The path to the ffprobe binary
+        redirect_to_flutter:
+          type: boolean
+          description: Whether to redirect to Flutter frontend when accessing the root URL
+        download_timeout_check_interval:
+          type: integer
+          description: The interval of checking download timeout in milliseconds
+        eh_metadata_cache_time:
+          type: integer
+          description: The time to cache the metadata of the gallery from E-Hentai in hours
+        random_file_secret:
+          type: string
+          description: The secret of token to access random file without login
+        use_path_based_img_url:
+          type: boolean
+          description: Whether to put parameters to image URL path
+        check_file_hash:
+          type: boolean
+          description: Whether to verify file integrity when downloading or importing
+        import_method:
+          $ref: "#/components/schemas/ImportMethod"
+        max_import_img_count:
+          type: integer
+          description: Maximum number of images to be imported in parallel
+        enable_server_timing:
+          type: boolean
+          description: Whether to enable server time tracking
+    Config:
+      allOf:
+        - $ref: "#/components/schemas/ConfigOptional"
+        - properties:
+            cookies:
+              type: boolean
+              description: True if Cookies is set
+      required:
+        - cookies
+        - ex
+        - base
+        - max_task_count
+        - mpv
+        - max_retry_count
+        - max_download_img_count
+        - download_original_img
+        - port
+        - export_zip_jpn_title
+        - hostname
+        - ffmpeg_path
+        - thumbnail_method
+        - thumbnail_dir
+        - remove_previous_gallery
+        - cors_credentials_hosts
+        - fetch_timeout
+        - download_timeout
+        - ffprobe_path
+        - redirect_to_flutter
+        - download_timeout_check_interval
+        - eh_metadata_cache_time
+        - use_path_based_img_url
+        - check_file_hash
+        - import_method
+        - max_import_img_count
+        - enable_server_timing
+    ConfigUpdated:
+      description: result of updateConfig
+      type: object
+      properties:
+        is_unsafe:
+          type: boolean
+          description: True if some modification of configuration only works after server restart
+      required: [is_unsafe]
     EhFileBasic:
       description: Basic data for file
       type: object
@@ -92,6 +249,45 @@ components:
           properties:
             data:
               $ref: "#/components/schemas/EhFiles"
+    EHImageLimit:
+      description: E-Hentai image limits
+      type: object
+      properties:
+        current:
+          type: integer
+          description: Current used
+        max:
+          type: integer
+          description: Maximum limit
+    EHImageLimitApiResult:
+      description: Api response for getEhImageLimit
+      allOf:
+        - $ref: "#/components/schemas/ApiResponse"
+        - type: object
+          required: [data]
+          properties:
+            data:
+              $ref: "#/components/schemas/EHImageLimit"
+    EHMetaInfo:
+      description: E-Hentai metadata information map
+      type: object
+      additionalProperties:
+        allOf:
+        - $ref: "#/components/schemas/ApiResponse"
+        - type: object
+          required: [data]
+          properties:
+            data:
+              $ref: "#/components/schemas/GalleryMetadataSingle"
+    EHMetaInfoApiResult:
+      description: Api response for getEhMetadata
+      allOf:
+        - $ref: "#/components/schemas/ApiResponse"
+        - type: object
+          required: [data]
+          properties:
+            data:
+              $ref: "#/components/schemas/EHMetaInfo"
     ExtendedPMeta:
       description: Page metadata with extended information
       type: object
@@ -152,19 +348,17 @@ components:
       description: Gallery metadata
       type: object
       required:
-        [
-          gid,
-          token,
-          title,
-          title_jpn,
-          category,
-          uploader,
-          posted,
-          filecount,
-          filesize,
-          expunged,
-          rating,
-        ]
+        - gid
+        - token
+        - title
+        - title_jpn
+        - category
+        - uploader
+        - posted
+        - filecount
+        - filesize
+        - expunged
+        - rating
       properties:
         gid:
           type: integer
@@ -188,7 +382,7 @@ components:
         posted:
           type: integer
           format: int64
-          description: Posted epoch time in milliseconds
+          description: Posted epoch time
         filecount:
           type: integer
           description: File count in gallery
@@ -216,6 +410,121 @@ components:
         first_token:
           type: string
           description: First gallery token
+    GalleryMetadataSingle:
+      description: Gallery metadata from E-Hentai api
+      type: object
+      required: 
+        - gid
+        - token
+        - archiver_key
+        - title
+        - title_jpn
+        - category
+        - thumb
+        - uploader
+        - posted
+        - filecount
+        - filesize
+        - expunged
+        - rating
+        - torrentcount
+        - torrents
+        - tags
+      properties:
+        gid:
+          type: number
+          format: int64
+          description: Gallery id
+        token:
+          type: string
+          description: Gallery token
+        archiver_key:
+          type: string
+        title:
+          type: string
+          description: HTML Escaped title
+        title_jpn:
+          type: string
+          description: HTML Escaped japanese title
+        category:
+          type: string
+          description: Category
+        thumb:
+          type: string
+          description: Thumbnail URL
+        uploader:
+          type: string
+          description: HTML Escaped uploader name
+        posted:
+          type: string
+          description: Posted epoch time
+        filecount:
+          type: string
+          description: File count in gallery
+        filesize:
+          type: integer
+          format: int64
+          description: Total size of files
+        expunged:
+          type: boolean
+          description: True if gallery is not visible
+        rating:
+          type: number
+          description: Rating
+        torrentcount:
+          type: integer
+          description: Torrent count
+        torrents:
+          type: array
+          items:
+            $ref: "#/components/schemas/GalleryMetadataTorrentInfo"
+          description: Torrents
+        tags:
+          type: array
+          items:
+            type: string
+          description: List of tags
+        parent_gid:
+          type: integer
+          format: int64
+          description: Parent gallery id
+        parent_token:
+          type: string
+          description: Parent gallery token
+        first_gid:
+          type: integer
+          format: int64
+          description: First gallery id
+        first_token:
+          type: string
+          description: First gallery token
+    GalleryMetadataTorrentInfo:
+      description: Torrent information
+      type: object
+      required: [hash, added, name, tsize, fsize]
+      properties:
+        hash:
+          type: string
+        added:
+          type: string
+        name:
+          type: string
+        tsize:
+          type: string
+        fsize:
+          type: string
+    ImportMethod:
+      description: import method
+      type: integer
+      oneOf:
+        - title: Copy
+          const: 0
+        - title: CopyThenDelete
+          const: 1
+        - title: Move
+          const: 2
+        - title: Keep
+          const: 3
     Tag:
       description: Gallery Tag
       type: object
@@ -233,6 +542,16 @@ components:
         intro:
           type: string
           description: Chinese introduction of tag
+    ThumbnailMethod:
+      description: Thumbnail method
+      type: integer
+      oneOf:
+        - title: FFMPEG_API
+          const: 0
+          description: ffmpeg API
+        - title: FFMPEG_BINARY
+          const: 1
+          description: ffmpeg BINARY
   securitySchemes:
     TokenAuth:
       type: apiKey
@@ -269,14 +588,15 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ApiResponseEmpty'
+                $ref: "#/components/schemas/ApiResponseEmpty"
         "400":
           description: Bad request
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiResponseError"
-              example: { "ok": false, "status": 2, "error": "client is needed." }
+              example:
+                { "ok": false, "status": 2, "error": "client is needed." }
         "401":
           description: Authorization information is missing or invalid
           content:
@@ -313,14 +633,15 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ClientConfigApiResult'
+                $ref: "#/components/schemas/ClientConfigApiResult"
         "400":
           description: Bad request
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiResponseError"
-              example: { "ok": false, "status": 2, "error": "client is needed." }
+              example:
+                { "ok": false, "status": 2, "error": "client is needed." }
         "401":
           description: Authorization information is missing or invalid
           content:
@@ -342,8 +663,7 @@ paths:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiResponseError"
-              example:
-                { "ok": false, "status": 404, "error": "Not found" }
+              example: { "ok": false, "status": 404, "error": "Not found" }
     put:
       operationId: putClientConfig
       summary: Create/Update client configuration
@@ -369,14 +689,15 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/ApiResponseEmpty'
+                $ref: "#/components/schemas/ApiResponseEmpty"
         "400":
           description: Bad request
           content:
             application/json:
               schema:
                 $ref: "#/components/schemas/ApiResponseError"
-              example: { "ok": false, "status": 2, "error": "client is needed." }
+              example:
+                { "ok": false, "status": 2, "error": "client is needed." }
         "401":
           description: Authorization information is missing or invalid
           content:
@@ -392,6 +713,266 @@ paths:
                 $ref: "#/components/schemas/ApiResponseError"
               example:
                 { "ok": false, "status": 403, "error": "Permission denied." }
+  /config:
+    get:
+      operationId: getConfig
+      summary: Get server's configuration
+      parameters:
+        - name: current
+          in: query
+          schema:
+            type: boolean
+          description: Whether to return current server's configuration
+        - name: type
+          in: query
+          schema:
+            enum: ["ws"]
+          description: Connection protocol
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Config"
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            text/plain:
+              example: Permission denied
+    post:
+      operationId: updateConfig
+      summary: Update server's configuration
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: "#/components/schemas/ConfigOptional"
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ConfigUpdated"
+        "400":
+          description: Bad Request
+          content:
+            text/plain:
+              example: Bad Request
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            text/plain:
+              example: Permission denied
+  /deploy_id:
+    get: 
+      operationId: getDeployId
+      summary: Get deployment id
+      responses: 
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  id:
+                    type: string
+                    description: Deployment id
+                required: [id]
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+  /eh/image_limit:
+    get:
+      operationId: getEhImageLimit
+      summary: Get E-Hentai image limits
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/EHImageLimitApiResult"
+        "400":
+          description: Bad request
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example:
+                { "ok": false, "status": 1, "error": "Not logged in." }
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example:
+                { "ok": false, "status": 403, "error": "Permission denied." }
+  /eh/metadata:
+    get:
+      operationId: getEhMetadata
+      summary: Get gallery metadata from E-Hentai api
+      parameters: 
+        - name: gid
+          in: query
+          schema: 
+            type: array
+            items:
+              type: integer
+              format: int64
+          required: true
+          description: List of gallery ids
+        - name: token
+          in: query
+          schema: 
+            type: array
+            items:
+              type: string
+          required: true
+          description: List of gallery tokens
+      responses:
+        "200":
+          description: OK
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/EHMetaInfoApiResult"
+        "400":
+          description: Bad request
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example:
+                { "ok": false, "status": 3, "error": "Length of gids and tokens do not match." }
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example:
+                { "ok": false, "status": 403, "error": "Permission denied." }
+  /exit:
+    post: 
+      operationId: closeServer
+      summary: Close Server
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              type: object
+              properties:
+                force:
+                  type: boolean
+                  description: Force close server
+                  default: false
+      responses:
+        "200":
+          description: OK
+          content:
+            text/plain:
+              example: Aborted
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            text/plain:
+              example: Permission denied
+  /export/gallery/zip/{gid}:
+    parameters: 
+      - name: gid
+        in: path
+        description: Gallery id
+        required: true
+        schema: 
+          type: integer
+          format: int64
+    get:
+      operationId: exportGalleryZip
+      summary: Export gallery as Zip file
+      parameters: 
+        - name: jpn_title
+          in: query
+          description: Use japanese title
+          schema: 
+            type: boolean
+            default: false
+        - name: max_length
+          in: query
+          description: Maximum length of filenames in Zip files. 0 means disable
+          schema: 
+            type: integer
+            default: 0
+        - name: export_ad
+          in: query
+          description: Export pages which marked as advertisements
+          schema:
+            type: boolean
+            default: false
+      responses:
+        "200":
+          description: OK
+          content:
+            application/zip: {}
+        "400":
+          description: Bad Request
+          content:
+            text/plain:
+              example: Bad Request
+        "401":
+          description: Authorization information is missing or invalid
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/ApiResponseError"
+              example: { "ok": false, "status": 401, "error": "Unauthorized" }
+        "403":
+          description: Permission denied
+          content:
+            text/plain:
+              example: Permission denied
   /files/{token}:
     parameters:
       - name: token