I think I fixed it

Signed-off-by: Xe Iaso <me@xeiaso.net>

package.json

@@ -21,18 +21,22 @@
   },
   "homepage": "https://tulpa.dev/cadey/yasomi",
   "devDependencies": {
-    "@types/node": "^18.15.11",
+    "@types/express": "^4.17.17",
+    "@types/node": "^18.16.0",
     "husky": "^8.0.3",
     "lint-staged": "^13.2.1",
     "mocha": "^10.2.0",
     "prettier": "2.8.7",
-    "typescript": "^4.9.5"
+    "typescript": "^4.9.5",
+    "typescript-json-schema": "^0.56.0"
   },
   "dependencies": {
     "@atproto/api": "^0.2.8",
+    "ajv": "^8.12.0",
     "commander": "^10.0.0",
     "dotenv": "^16.0.3",
     "execa": "^7.1.1",
+    "express": "^4.18.2",
     "read-pkg": "^8.0.0"
   },
   "lint-staged": {

src/index.ts

@@ -1,8 +1,19 @@
 import * as dotenv from "dotenv";
+import express from "express";
+import _Ajv from "ajv";
+const Ajv = _Ajv as unknown as typeof _Ajv.default;
+
+import { CreatePostRequest, CreatePostRequestSchema } from "./types.js";
 
 import bsky from "@atproto/api";
 const { BskyAgent, RichText } = bsky;
 
+const ajv = new Ajv({ allErrors: true });
+
+const valid = {
+  CreatePostRequest: ajv.compile(CreatePostRequestSchema),
+};
+
 dotenv.config();
 
 const agent = new BskyAgent({
@@ -13,12 +24,45 @@ await agent.login({
   password: process.env.BLUESKY_PASSWORD as string,
 });
 
-const rt = new RichText({ text: "Hello Bluesky!" });
-await rt.detectFacets(agent);
-const postRecord = {
-  $type: "app.bsky.feed.post",
-  text: rt.text,
-  facets: rt.facets,
-  createdAt: new Date().toISOString(),
-};
-await agent.post(postRecord);
+const app: express.Application = express();
+const port: number = 3000;
+
+app.get("/", async (_req, resp) => {
+  resp.send("Yasomi online.");
+});
+
+app.post("/create", express.json(), async (req, resp) => {
+  if (!valid.CreatePostRequest(req.body)) {
+    resp.status(400);
+    resp.json({
+      errors: valid.CreatePostRequest.errors,
+    });
+    return;
+  }
+  const cpr = req.body as unknown as CreatePostRequest;
+
+  const rt = new RichText({ text: cpr.body });
+  await rt.detectFacets(agent);
+
+  if (rt.graphemeLength > 300) {
+    resp.status(400);
+    resp.json({
+      errors: ["message must be less than 300 characters"],
+    });
+    return;
+  }
+
+  const postRecord = {
+    $type: "app.bsky.feed.post",
+    text: rt.text,
+    facets: rt.facets,
+    createdAt: new Date().toISOString(),
+  };
+  const postData = await agent.post(postRecord);
+
+  resp.json({ atProto: postData });
+});
+
+app.listen(port, () => {
+  console.log("http://pneuma:3000");
+});

src/types.ts

@@ -0,0 +1,6 @@
+export interface CreatePostRequest {
+  body: string;
+}
+
+import CreatePostRequestSchema from "./types/CreatePostRequest.json" assert { type: "json" };
+export { CreatePostRequestSchema };

src/types/CreatePostRequest.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "properties": {
+    "body": {
+      "type": "string"
+    }
+  },
+  "required": ["body"],
+  "type": "object"
+}

tsconfig.json

@@ -7,6 +7,7 @@
     "preserveConstEnums": true,
     "moduleResolution": "node16",
     "strict": true,
+    "resolveJsonModule": true,
     "sourceMap": true,
     "target": "esnext",
     "types": ["node"],