feat: add endpoints to get notes

deno.json

@@ -2,8 +2,8 @@
   "tasks": {
     "jetstream:prod": "deno run --allow-net --allow-read --allow-write --allow-env jetstream.ts",
     "jetstream": "deno run --watch --allow-net --allow-read --allow-write --allow-env jetstream.ts",
-    "server": "deno run --watch --allow-net server.ts",
+    "server": "deno run --watch --allow-net --allow-read --allow-write --allow-env server.ts",
-    "server:prod": "deno run --allow-net server.ts",
+    "server:prod": "deno run --allow-net --allow-read --allow-write --allow-env server.ts",
     "migrate": "deno run --allow-read --allow-write src/migrations/init.ts"
   },
   "imports": {

server.ts

@@ -1,4 +1,5 @@
 import { Application, Router } from "@oak/oak";
+import { getNotes, getNotesByDid } from "./src/data/db.ts";
 
 const router = new Router();
 
@@ -6,6 +7,19 @@ router.get("/", (ctx) => {
   ctx.response.body = "Hello world";
 });
 
+router.get("/notes", (ctx) => {
+  const cursor = ctx.request.url.searchParams.get("cursor") ?? undefined;
+  const limit = Number(ctx.request.url.searchParams.get("limit")) || 20;
+  ctx.response.body = getNotes(cursor, limit);
+});
+
+router.get("/:did/notes", (ctx) => {
+  const { did } = ctx.params;
+  const cursor = ctx.request.url.searchParams.get("cursor") ?? undefined;
+  const limit = Number(ctx.request.url.searchParams.get("limit")) || 20;
+  ctx.response.body = getNotesByDid(did, cursor, limit);
+});
+
 const app = new Application();
 app.use(router.routes());
 app.use(router.allowedMethods());

src/data/db.ts

@@ -3,6 +3,58 @@ import type { Note } from "./note.ts";
 
 export const db = new DB(Deno.env.get("SQLITE_PATH") ?? "notes.db");
 
+export const getNotes = (cursor?: string, limit = 20) => {
+  const rows = cursor
+    ? db.query<[string, string, string, string, string, string]>(
+      "SELECT did, rkey, title, content, publishedAt, createdAt FROM note WHERE rkey < ? ORDER BY rkey DESC LIMIT ?",
+      [cursor, limit],
+    )
+    : db.query<[string, string, string, string, string, string]>(
+      "SELECT did, rkey, title, content, publishedAt, createdAt FROM note ORDER BY rkey DESC LIMIT ?",
+      [limit],
+    );
+
+  const notes = rows.map(([did, rkey, title, content, publishedAt, createdAt]) => ({
+    did,
+    rkey,
+    title,
+    content,
+    publishedAt,
+    createdAt,
+  }));
+
+  return {
+    notes,
+    cursor: notes.length === limit ? notes[notes.length - 1].rkey : undefined,
+  };
+};
+
+export const getNotesByDid = (did: string, cursor?: string, limit = 20) => {
+  const rows = cursor
+    ? db.query<[string, string, string, string, string, string]>(
+      "SELECT did, rkey, title, content, publishedAt, createdAt FROM note WHERE did = ? AND rkey < ? ORDER BY rkey DESC LIMIT ?",
+      [did, cursor, limit],
+    )
+    : db.query<[string, string, string, string, string, string]>(
+      "SELECT did, rkey, title, content, publishedAt, createdAt FROM note WHERE did = ? ORDER BY rkey DESC LIMIT ?",
+      [did, limit],
+    );
+
+  const notes = rows.map(([did, rkey, title, content, publishedAt, createdAt]) => ({
+    did,
+    rkey,
+    title,
+    content,
+    publishedAt,
+    createdAt,
+  }));
+
+  return {
+    notes,
+    cursor: notes.length === limit ? notes[notes.length - 1].rkey : undefined,
+  };
+};
+
 export const upsertNote = (note: Note) => {
   db.query(
     `