diff --git a/targets/export-elasticsearch/request.http b/targets/export-elasticsearch/request.http
index e6ab397b2..9bb820aad 100644
--- a/targets/export-elasticsearch/request.http
+++ b/targets/export-elasticsearch/request.http
@@ -43,7 +43,7 @@ GET http://localhost:8787/embedding/service-public/list
 GET http://localhost:8787/embedding/service-public/source
 
 ###
-DELETE http://localhost:8787/embedding/service-public/delete
+DELETE http://localhost:8787/embedding/service-public
 
 ###
 POST http://localhost:8787/embedding/contribution
@@ -61,7 +61,7 @@ GET http://localhost:8787/embedding/contribution/list
 GET http://localhost:8787/embedding/contribution/source
 
 ###
-DELETE http://localhost:8787/embedding/contribution/delete
+DELETE http://localhost:8787/embedding/contribution
 
 ###
 POST http://localhost:8787/chat/service-public
diff --git a/targets/export-elasticsearch/src/controllers/embedding.ts b/targets/export-elasticsearch/src/controllers/embedding.ts
index e204eecaf..95c453ce5 100644
--- a/targets/export-elasticsearch/src/controllers/embedding.ts
+++ b/targets/export-elasticsearch/src/controllers/embedding.ts
@@ -96,7 +96,7 @@ export class EmbeddingController implements interfaces.Controller {
     }
   }
 
-  @httpDelete("/:slug/delete")
+  @httpDelete("/:slug")
   async delete(
     @requestParam("slug") slug: CollectionSlug
   ): Promise<Record<string, any>> {
diff --git a/targets/export-elasticsearch/src/repositories/documents.ts b/targets/export-elasticsearch/src/repositories/documents.ts
index 05d8e6767..20671dabe 100644
--- a/targets/export-elasticsearch/src/repositories/documents.ts
+++ b/targets/export-elasticsearch/src/repositories/documents.ts
@@ -4,48 +4,15 @@ import { injectable } from "inversify";
 
 import { name } from "../utils";
 import { getDocumentBySource } from "./graphql";
-
-interface Document {
-  id: string;
-  cdtnId: string;
-  title: string;
-  slug: string;
-  source: string;
-  text: string;
-  isPublished: boolean;
-  isSearchable: boolean;
-  metaDescription: string;
-  document: {
-    raw: string;
-    url: string;
-    date: string;
-    description: string;
-    answers?: {
-      generic?: {
-        markdown: string;
-      };
-      conventionAnswer?: {
-        markdown: string;
-      };
-    };
-    referencedTexts?:
-      | {
-          slug: string;
-          type: string;
-          title: string;
-        }[]
-      | null;
-  };
-  __typename: string;
-}
+import { DocumentRepo } from "../type";
 
 @injectable()
 @name("DocumentsRepository")
 export class DocumentsRepository {
-  public async getBySource(source: string): Promise<Document[]> {
+  public async getBySource(source: string): Promise<DocumentRepo[]> {
     try {
       const res = await client
-        .query<{ documents: Document[] }>(getDocumentBySource, {
+        .query<{ documents: DocumentRepo[] }>(getDocumentBySource, {
           source,
         })
         .toPromise();
diff --git a/targets/export-elasticsearch/src/services/embedding.ts b/targets/export-elasticsearch/src/services/embedding.ts
index 38479288d..246f27d59 100644
--- a/targets/export-elasticsearch/src/services/embedding.ts
+++ b/targets/export-elasticsearch/src/services/embedding.ts
@@ -8,7 +8,14 @@ import {
   IEmbeddingFunction,
   OpenAIEmbeddingFunction,
 } from "chromadb";
-import { CollectionSlug } from "../type";
+import { CollectionSlug, DocumentRepo } from "../type";
+
+interface ChromaGetResult {
+  text: string;
+  metadatas: Record<string, any>;
+}
+
+type ChromaGetResults = ChromaGetResult[];
 
 @injectable()
 @name("EmbeddingService")
@@ -27,32 +34,42 @@ export class EmbeddingService {
   }
 
   async ingestServicePublicDocuments() {
-    return await this.ingestDocuments(
+    await this.ingestDocuments(
       SOURCES.SHEET_SP,
       CollectionSlug.SERVICE_PUBLIC,
       (doc) => doc.text
     );
+    return { result: "Documents ingested" };
   }
 
   async ingestContributionDocuments() {
-    return await this.ingestDocuments(
+    await this.ingestDocuments(
+      SOURCES.CONTRIBUTIONS,
+      CollectionSlug.CONTRIBUTION + "-generic",
+      (r) => {
+        return r.document.answers?.generic?.markdown ?? "";
+      }
+    );
+    await this.ingestDocuments(
       SOURCES.CONTRIBUTIONS,
-      CollectionSlug.CONTRIBUTION,
+      CollectionSlug.CONTRIBUTION + "-idcc",
+      (r) => {
+        return r.document.answers?.conventionAnswer?.markdown ?? "";
+      },
       (r) => {
-        const idccNumber = r.slug.split("-")[0];
-        const answer =
-          r.document.answers?.generic?.markdown +
-          "\n\n" +
-          r.document.answers?.conventionAnswer?.markdown;
-        return "Pour l'idcc numéro " + idccNumber + "\n\n" + answer + "\n\n";
+        return {
+          idccNumber: r.slug.split("-")[0],
+        };
       }
     );
+    return { result: "Documents ingested" };
   }
 
   async ingestDocuments(
     source: string,
     collectionName: string,
-    getText: (doc: any) => string
+    getText: (doc: DocumentRepo) => string,
+    getMetadata?: (doc: DocumentRepo) => Record<string, any>
   ) {
     const results = await this.documentsRepository.getBySource(source);
     const collection = await this.client.getOrCreateCollection({
@@ -72,6 +89,9 @@ export class EmbeddingService {
             const metadatasSplits = textSplits.map(() => ({
               title: r.title,
               metaDescription: r.metaDescription,
+              id,
+              numChunks: idSplits.length,
+              ...getMetadata?.(r),
             }));
             acc.ids.push(...idSplits);
             acc.documents.push(...textSplits);
@@ -83,6 +103,8 @@ export class EmbeddingService {
           acc.metadatas.push({
             title: r.title,
             metaDescription: r.metaDescription,
+            id: r.cdtnId,
+            ...getMetadata?.(r),
           });
           return acc;
         },
@@ -99,29 +121,80 @@ export class EmbeddingService {
         console.error(e);
       }
     }
-
-    return { result: "Documents ingested" };
   }
 
   async getContributionDocuments(query: string) {
-    return await this.getDocuments(CollectionSlug.CONTRIBUTION, query);
-  }
-
-  async getServicePublicDocuments(query: string) {
-    return await this.getDocuments(CollectionSlug.SERVICE_PUBLIC, query);
-  }
-
-  async getDocuments(collectionName: string, query: string) {
+    // etape 1 : retrouver les 5 meilleurs elements
     const collection = await this.client.getOrCreateCollection({
-      name: collectionName,
+      name: CollectionSlug.CONTRIBUTION + "-generic",
       embeddingFunction: this.embedder,
     });
     const result = await collection.query({
       queryTexts: [query],
     });
+    // etape 2 : recuperer les parties découpées
+    // etape 3 : filer les infos liées à la cc
     return result;
   }
 
+  async getServicePublicDocuments(query: string): Promise<ChromaGetResults> {
+    try {
+      const result: ChromaGetResults = [];
+      const collection = await this.client.getOrCreateCollection({
+        name: CollectionSlug.SERVICE_PUBLIC,
+        embeddingFunction: this.embedder,
+      });
+      const queryTextsResult = await collection.query({
+        queryTexts: [query],
+        nResults: 5,
+      });
+      const metadataList = queryTextsResult.metadatas[0]!.reduce(
+        (acc: any[], m: any) => {
+          if (!acc.find((a) => a.metaDescription === m.metaDescription)) {
+            acc.push(m);
+          }
+          return acc;
+        },
+        []
+      );
+      for (let i = 0; i < metadataList.length; i++) {
+        const metadata = metadataList[i]!;
+        const queryResult = await collection.query({
+          queryTexts: [" "],
+          where: {
+            id: {
+              $eq: metadata.id as string,
+            },
+          },
+        });
+        console.log(queryResult);
+        const ids = queryResult.ids[0]!;
+        const documents = queryResult.documents[0]!;
+        const text: string = documents
+          .map((_doc, j) => ({
+            [`${ids[j]}`]: documents[j],
+          }))
+          .sort((a, b) => {
+            const aKey = Object.keys(a)[0];
+            const bKey = Object.keys(b)[0];
+            return aKey.localeCompare(bKey);
+          })
+          .reduce((acc, curr) => {
+            const text = Object.values(curr);
+            return acc + text;
+          }, "");
+        result.push({
+          text,
+          metadatas: metadata,
+        });
+      }
+      return result;
+    } catch (e: any) {
+      console.error(e);
+      return e.message;
+    }
+  }
+
   async countAndPeekContributionDocuments() {
     return await this.countAndPeekDocuments(CollectionSlug.CONTRIBUTION);
   }
diff --git a/targets/export-elasticsearch/src/type.ts b/targets/export-elasticsearch/src/type.ts
index dd3753bfb..99a7c4ffa 100644
--- a/targets/export-elasticsearch/src/type.ts
+++ b/targets/export-elasticsearch/src/type.ts
@@ -2,3 +2,37 @@ export enum CollectionSlug {
   SERVICE_PUBLIC = "service-public",
   CONTRIBUTION = "contribution",
 }
+
+export interface DocumentRepo {
+  id: string;
+  cdtnId: string;
+  title: string;
+  slug: string;
+  source: string;
+  text: string;
+  isPublished: boolean;
+  isSearchable: boolean;
+  metaDescription: string;
+  document: {
+    raw: string;
+    url: string;
+    date: string;
+    description: string;
+    answers?: {
+      generic?: {
+        markdown: string;
+      };
+      conventionAnswer?: {
+        markdown: string;
+      };
+    };
+    referencedTexts?:
+      | {
+          slug: string;
+          type: string;
+          title: string;
+        }[]
+      | null;
+  };
+  __typename: string;
+}