feat: add search endpoint

backend/src/api/metadata.ts

@@ -14,6 +14,13 @@ export const saveMetadata = async (cid: string, metadata: OffchainMetadata) => {
   return metadataRepository.setMetadata(cid, metadata);
 };
 
+export const searchMetadataByCID = async (cid: string, limit?: number) => {
+  const defaultLimit = 5;
+  return metadataRepository
+    .searchMetadataByCID(cid, limit ?? defaultLimit)
+    .then((result) => result.map((entry) => entry.cid));
+};
+
 export const getAllMetadata = async () => {
   return metadataRepository
     .getAllMetadata()

backend/src/repositories/metadata.ts

@@ -40,6 +40,24 @@ const setMetadata = async (cid: string, metadata: OffchainMetadata) => {
   );
 };
 
+const searchMetadataByCID = async (cid: string, limit: number | undefined) => {
+  const db = await initTable();
+
+  return db
+    .all<{ cid: string }[]>(
+      "SELECT cid FROM metadata WHERE cid LIKE ? LIMIT ?",
+      `%${cid}%`,
+      limit
+    )
+    .then((entries) => {
+      return entries.map((entry) => {
+        return {
+          cid: entry.cid,
+        };
+      });
+    });
+};
+
 /// TODO: pagination and filtering
 export const getAllMetadata = async () => {
   const db = await initTable();
@@ -58,4 +76,5 @@ export const metadataRepository = {
   getMetadata,
   setMetadata,
   getAllMetadata,
+  searchMetadataByCID,
 };

backend/src/server.ts

@@ -28,7 +28,7 @@ import {
 import { decode } from "@ipld/dag-pb";
 import { NodeWithMetadata } from "./models/nodeWithMetadata.js";
 import { getNode } from "./api/nodes.js";
-import { getMetadata } from "./api/metadata.js";
+import { getMetadata, searchMetadataByCID } from "./api/metadata.js";
 import {
   getHeadTransactionResults,
   getNodeTransactionResult,
@@ -161,6 +161,22 @@ const createServer = async () => {
     }
   });
 
+  app.get("/metadata/search/:cid", async (req, res) => {
+    try {
+      const { cid } = req.params;
+      const limit = req.query.limit
+        ? parseInt(req.query.limit as string)
+        : undefined;
+      const results = await searchMetadataByCID(cid, limit);
+      res.json(results);
+    } catch (error: any) {
+      console.error("Error searching metadata:", error);
+      res
+        .status(500)
+        .json({ error: "Failed to search metadata", details: error.message });
+    }
+  });
+
   app.get("/metadata/:cid", async (req, res) => {
     try {
       const { cid } = req.params;

frontend/package.json

@@ -9,7 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "@autonomys/auto-drive": "^0.5.0",
+    "@autonomys/auto-drive": "^0.5.2",
     "@headlessui/react": "^2.1.7",
     "@ipld/dag-pb": "^4.1.2",
     "@uidotdev/usehooks": "^2.4.1",

frontend/yarn.lock

@@ -12,17 +12,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@autonomys/auto-drive@npm:^0.5.0":
-  version: 0.5.0
-  resolution: "@autonomys/auto-drive@npm:0.5.0"
+"@autonomys/auto-drive@npm:^0.5.2":
+  version: 0.5.2
+  resolution: "@autonomys/auto-drive@npm:0.5.2"
   dependencies:
     "@ipld/dag-pb": "npm:^4.1.2"
     blake3: "npm:1.1.0"
     multiformats: "npm:^13.2.2"
     protobufjs: "npm:^7.4.0"
     protons: "npm:^7.6.0"
     protons-runtime: "npm:^5.5.0"
-  checksum: 10c0/83137e75afcbe5029387118b9353ec6f4026403622fac491f78c354fd49494adeac700a747ecf67eb8d44418f6877f0575cd208b2e092796692f9489fda5e5db
+  checksum: 10c0/d66d26bb1495ffea46470675933c6c936b50bce80f5917826f03949d4a9393f5676150bfda08f633c6297df1d8b829afaae8a6dd8b1da89996d06d69e6ee481c
   languageName: node
   linkType: hard
 
@@ -2156,7 +2156,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "frontend@workspace:."
   dependencies:
-    "@autonomys/auto-drive": "npm:^0.5.0"
+    "@autonomys/auto-drive": "npm:^0.5.2"
     "@headlessui/react": "npm:^2.1.7"
     "@ipld/dag-pb": "npm:^4.1.2"
     "@types/node": "npm:^20"