diff --git a/nest-cli.json b/nest-cli.json
index d0091b82..43e80913 100644
--- a/nest-cli.json
+++ b/nest-cli.json
@@ -1,5 +1,19 @@
 {
   "collection": "@nestjs/schematics",
   "sourceRoot": "src",
-  "compilerOptions": {}
-}
+  "compilerOptions": {
+    "plugins": [
+      {
+        "name": "@nestjs/swagger",
+        "options": {
+          "classValidatorShim": false,
+          "introspectComments": true,
+          "dtoFileNameSuffix": [
+            ".dto.ts",
+            ".model.ts"
+          ]
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/src/modules/post/post.controller.ts b/src/modules/post/post.controller.ts
index ac483311..bc124d00 100644
--- a/src/modules/post/post.controller.ts
+++ b/src/modules/post/post.controller.ts
@@ -1,6 +1,24 @@
-import { Controller } from '@nestjs/common'
+import { Body, Controller, Param, Post, Put } from '@nestjs/common'
 import { ApiTags } from '@nestjs/swagger'
+import { Types } from 'mongoose'
+import { MongoIdDto } from '~/shared/dto/id.dto'
+import { PostModel } from './post.model'
+import { PostService } from './post.service'
 
 @Controller('posts')
 @ApiTags('Post Routes')
-export class PostController {}
+export class PostController {
+  constructor(private readonly postService: PostService) {}
+
+  @Post('/')
+  async create(@Body() body: PostModel) {
+    const _id = Types.ObjectId()
+
+    return await this.postService.create({
+      ...body,
+      slug: body.slug ?? _id.toHexString(),
+    })
+  }
+  @Put('/:id')
+  async update(@Param() params: MongoIdDto) {}
+}
diff --git a/src/modules/post/post.model.ts b/src/modules/post/post.model.ts
index f7bc72b1..a0a6ef27 100644
--- a/src/modules/post/post.model.ts
+++ b/src/modules/post/post.model.ts
@@ -1,5 +1,13 @@
+import { ApiHideProperty, ApiProperty } from '@nestjs/swagger'
 import { index, modelOptions, prop, Ref, Severity } from '@typegoose/typegoose'
-import { Schema } from 'mongoose'
+import {
+  ArrayUnique,
+  IsBoolean,
+  IsMongoId,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+} from 'class-validator'
 import { CountMixed as Count, WriteBaseModel } from '~/shared/model/base.model'
 import { CategoryModel as Category } from '../category/category.model'
 
@@ -9,12 +17,19 @@ import { CategoryModel as Category } from '../category/category.model'
 @modelOptions({ options: { customName: 'Post', allowMixed: Severity.ALLOW } })
 export class PostModel extends WriteBaseModel {
   @prop({ trim: true, unique: true, required: true })
+  @IsString()
+  @IsNotEmpty()
   slug!: string
 
   @prop()
+  @IsOptional()
+  @IsNotEmpty()
+  @IsString()
   summary?: string
 
   @prop({ ref: () => Category, required: true })
+  @IsMongoId()
+  @ApiProperty({ example: '5eb2c62a613a5ab0642f1f7a' })
   categoryId: Ref<Category>
 
   @prop({
@@ -23,22 +38,28 @@ export class PostModel extends WriteBaseModel {
     localField: 'categoryId',
     justOne: true,
   })
+  @ApiHideProperty()
   public category: Ref<Category>
 
   @prop({ default: false })
+  @IsBoolean()
+  @IsOptional()
   hide?: boolean
 
   @prop({ default: true })
+  @IsBoolean()
+  @IsOptional()
   copyright?: boolean
 
   @prop({
     type: String,
   })
+  @IsNotEmpty({ each: true })
+  @IsString({ each: true })
+  @ArrayUnique()
+  @IsOptional()
   tags?: string[]
-
   @prop({ type: Count, default: { read: 0, like: 0 }, _id: false })
+  @ApiHideProperty()
   count?: Count
-
-  @prop({ type: Schema.Types.Mixed })
-  options?: Record<any, any>
 }
diff --git a/src/modules/post/post.service.ts b/src/modules/post/post.service.ts
index 59870b14..4ba70fff 100644
--- a/src/modules/post/post.service.ts
+++ b/src/modules/post/post.service.ts
@@ -1,12 +1,15 @@
 import {
+  BadRequestException,
   forwardRef,
   Inject,
   Injectable,
-  UnprocessableEntityException,
 } from '@nestjs/common'
 import { ReturnModelType } from '@typegoose/typegoose'
+import { omit } from 'lodash'
 import { InjectModel } from 'nestjs-typegoose'
 import { CannotFindException } from '~/common/exceptions/cant-find.exception'
+import { EventTypes } from '~/processors/gateway/events.types'
+import { WebEventsGateway } from '~/processors/gateway/web/events.gateway'
 import { CategoryService } from '../category/category.service'
 import { PostModel } from './post.model'
 
@@ -17,16 +20,20 @@ export class PostService {
     private readonly postModel: ReturnModelType<typeof PostModel>,
     @Inject(forwardRef(() => CategoryService))
     private categoryService: CategoryService,
+    private readonly webgateway: WebEventsGateway,
   ) {}
 
-  async create(post: Partial<PostModel>) {
+  async create(post: PostModel) {
     const { categoryId } = post
 
     const category = await this.categoryService.findCategoryById(
       categoryId as any as string,
     )
     if (!category) {
-      throw new UnprocessableEntityException('分类丢失了 ಠ_ಠ')
+      throw new BadRequestException('分类丢失了 ಠ_ಠ')
+    }
+    if (await this.isAvailableSlug(post.slug)) {
+      throw new BadRequestException('slug 重复')
     }
     const res = await this.postModel.create({
       ...post,
@@ -35,14 +42,40 @@ export class PostService {
       modified: null,
     })
     // TODO: clean cache
+    process.nextTick(async () => {
+      this.webgateway.broadcast(EventTypes.POST_CREATE, {
+        ...res.toJSON(),
+        category,
+      })
+      // TODO
+      // this.service.RecordImageDimensions(newPostDocument._id)
+    })
+
     return res
   }
 
-  async findPostById(id: string) {
+  async findById(id: string) {
     const doc = await this.postModel.findById(id).populate('category')
     if (!doc) {
       throw new CannotFindException()
     }
     return doc
   }
+
+  async updateById(id: string, data: Partial<PostModel>) {
+    // 看看 category 改了没
+    const { categoryId } = data
+    if (categoryId) {
+    }
+    this.postModel.updateOne(
+      {
+        _id: id,
+      },
+      omit(data, ['id', '_id']),
+    )
+  }
+
+  async isAvailableSlug(slug: string) {
+    return !!(await this.postModel.countDocuments({ slug }))
+  }
 }
diff --git a/src/shared/model/base.model.ts b/src/shared/model/base.model.ts
index cff5319f..1429afde 100644
--- a/src/shared/model/base.model.ts
+++ b/src/shared/model/base.model.ts
@@ -1,6 +1,8 @@
+import { ApiHideProperty } from '@nestjs/swagger'
 import { modelOptions, prop } from '@typegoose/typegoose'
-import { IsNotEmpty, IsString } from 'class-validator'
+import { IsBoolean, IsNotEmpty, IsOptional, IsString } from 'class-validator'
 export class BaseModel {
+  @ApiHideProperty()
   created?: Date
 }
 
@@ -26,9 +28,12 @@ class Image {
 
 export abstract class BaseCommentIndexModel extends BaseModel {
   @prop({ default: 0 })
+  @ApiHideProperty()
   commentsIndex?: number
 
   @prop({ default: true })
+  @IsBoolean()
+  @IsOptional()
   allowComment: boolean
 }
 
@@ -43,9 +48,11 @@ export abstract class WriteBaseModel extends BaseCommentIndexModel {
   text: string
 
   @prop({ type: Image })
+  @ApiHideProperty()
   images?: Image[]
 
   @prop({ default: null })
+  @ApiHideProperty()
   modified: Date | null
 }