add elastic search

src/posts/postsSearch.service.ts

@@ -1,42 +1,81 @@
-import { Injectable } from '@nestjs/common';
-import { ElasticsearchService } from '@nestjs/elasticsearch';
+import {Injectable} from '@nestjs/common';
+import {ElasticsearchService} from '@nestjs/elasticsearch';
 import Post from "./entities/post.entity";
 import {PostSearchResult} from "./types/postSearchResult.interface";
 import {PostSearchBody} from "./types/postSearchBody.interface";
 
 @Injectable()
 export default class PostsSearchService {
-  index = 'posts'
+    index = 'posts';
 
-  constructor(
-    private readonly elasticsearchService: ElasticsearchService
-  ) {}
+    constructor(
+        private readonly elasticsearchService: ElasticsearchService
+    ) {
+    }
 
-  async indexPost(post: Post) {
-    return this.elasticsearchService.index<PostSearchBody>({
-      index: this.index,
-      body: {
-        id: post.id,
-        title: post.title,
-        content: post.content,
-        authorId: post.author.id
-      }
-    })
-  }
+    async indexPost(post: Post) {
+        return this.elasticsearchService.index<PostSearchBody>({
+            index: this.index,
+            document: {
+                id: post.id,
+                title: post.title,
+                content: post.content,
+                authorId: post.author.id
+            }
+        });
+    }
+
+    async search(text: string) {
+        const result = await this.elasticsearchService.search<PostSearchResult>({
+            index: this.index,
+            query: {
+                multi_match: {
+                    query: text,
+                    fields: ['title', 'content'],
+                },
+            },
+        });
+
+        const hits = result.hits.hits;
+        return hits.map((item) => item._source);
+    }
+
+
+    async remove(postId: number) {
+        await this.elasticsearchService.deleteByQuery({
+            index: this.index,
+            query: {
+                match: {
+                    id: postId,
+                }
+            }
+
+        })
+    }
+
+    async update(post: Post) {
+        const newBody: PostSearchBody = {
+            id: post.id,
+            title: post.title,
+            content: post.content,
+            authorId: post.author.id
+        };
+
+        const script = Object.entries(newBody).reduce((result, [key, value]) => {
+            return `${result} ctx._source.${key}='${value}';`;
+        }, '');
+
+        await this.elasticsearchService.updateByQuery({
+            index: this.index,
+            query: {
+                match: {
+                    id: post.id,
+                }
+            },
+            script: {
+                source: script
+            }
+        });
+    }
 
-  async search(text: string) {
-    const response = await this.elasticsearchService.search<PostSearchResult>({
-      index: this.index,
-      body: {
-        query: {
-          multi_match: {
-            query: text,
-            fields: ['title', 'content']
-          }
-        }
-      }
-    })
-    const hits = body.hits.hits;
-    return hits.map((item) => item._source);
-  }
 }