modelscript/apps/api/src/app.ts at main · modelscript/modelscript · GitHub

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// SPDX-License-Identifier: AGPL-3.0-or-later

import type { CosimMqttClient } from "@modelscript/language/cosim";

import bcrypt from "bcryptjs";

import express from "express";

import rateLimit from "express-rate-limit";

import path from "node:path";

import type { Pool } from "pg";

import { initializeArtifactSystem } from "./artifacts/index.js";

import { LibraryDatabase } from "./database.js";

import { JobQueue } from "./jobs.js";

import { setAuthDatabase } from "./middleware/auth-middleware.js";

import { artifactViewerRouter } from "./routes/artifact-viewer.js";

import { authRouter } from "./routes/auth.js";

import { cosimRouter, mqttParticipantsRouter } from "./routes/cosim.js";

import { federationRouter } from "./routes/federation.js";

import { fmuRouter } from "./routes/fmu.js";

import { gitRouter } from "./routes/git.js";

import { graphqlRouter } from "./routes/graphql.js";

import { historianRouter } from "./routes/historian.js";

import { npmAuthRouter } from "./routes/npm-auth.js";

import { npmRegistryRouter } from "./routes/npm-registry.js";

import { packagesRouter } from "./routes/packages.js";

import { physicsRouter } from "./routes/physics.js";

import { publishRouter } from "./routes/publish.js";

import { rdfRouter } from "./routes/rdf.js";

import { reposRouter } from "./routes/repos.js";

import { scriptsRouter } from "./routes/scripts.js";

import { searchRouter } from "./routes/search.js";

import { simulateRouter } from "./routes/simulate.js";

import { socialRouter } from "./routes/social.js";

import { sparqlRouter } from "./routes/sparql.js";

import { storageRouter } from "./routes/storage.js";

import { usersRouter } from "./routes/users.js";

import { seedCadAssembly } from "./seed-cad-assembly.js";

import { seedCfdAnimation } from "./seed-cfd-animation.js";

import { seedDroneCfd } from "./seed-drone-cfd.js";

import { seedDroneFea } from "./seed-drone-fea.js";

import { seedScriptsAndTemplates } from "./seed-scripts.js";

import { LibraryStorage } from "./storage.js";

import { seedExamplePackages, seedPrepackagedLibraries } from "./util/seed-examples.js";

/** Options for creating the Express application. */

export interface AppOptions {

/** Optional library storage override. */

storage?: LibraryStorage | undefined;

/** MQTT client for co-simulation (null = no MQTT). */

mqttClient?: CosimMqttClient | null | undefined;

/** PostgreSQL pool for historian queries (null = stubs). */

dbPool?: Pool | null | undefined;

}

export function createApp(options?: AppOptions | LibraryStorage): express.Express {

const app = express();

// Support legacy signature: createApp(storage?)

const opts: AppOptions =

options && "storage" in options ? (options as AppOptions) : { storage: options as LibraryStorage | undefined };

const libraryStorage = opts.storage ?? new LibraryStorage();

const jobQueue = new JobQueue();

app.locals.jobQueue = jobQueue;

const database = new LibraryDatabase();

const mqttClient = opts.mqttClient ?? null;

const dbPool = opts.dbPool ?? null;

setAuthDatabase(database);

// Initialize the extensible artifact system (FMU, Dataset, etc.)

initializeArtifactSystem();

if (process.env["NODE_ENV"] !== "production" || process.env["SEED_EXAMPLES"] === "true") {

console.log("[DevServer] Development mode detected. Running auto-seeding...");

// Seed dev users

const devUsers = [

{ username: "dev", email: "dev@modelscript.org", location: "Syria" },

{ username: "alice", email: "alice@modelscript.org", location: "United States" },

{ username: "bob", email: "bob@modelscript.org", location: "China" },

];

for (const u of devUsers) {

if (!database.getUserByUsername(u.username)) {

const hash = bcrypt.hashSync("password", 10);

const { id } = database.createUser(u.username, u.email, hash);

database.updateProfile(id, { location: u.location });

}

// Seed FEA examples

seedDroneFea(database);

seedCadAssembly(database);

seedDroneCfd(database);

seedScriptsAndTemplates(database);

seedCfdAnimation(database).catch(console.error);

console.log("[DevServer] Restarted to fix parabolic flow 92% cap issue!");

// Run asynchronously in the background

void seedExamplePackages(libraryStorage, database, jobQueue).catch((err) => {

console.error("[DevServer] Failed to seed example packages:", err);

});

void seedPrepackagedLibraries(libraryStorage, database, jobQueue).catch((err) => {

console.error("[DevServer] Failed to seed prepackaged libraries:", err);

});

app.post("/api/v1/dev/reset", async (req, res) => {

console.log("[DevServer] Resetting database and re-seeding...");

try {

jobQueue.clear();

database.resetDevData();

for (const u of devUsers) {

if (!database.getUserByUsername(u.username)) {

const hash = bcrypt.hashSync("password", 10);

const { id } = database.createUser(u.username, u.email, hash);

database.updateProfile(id, { location: u.location });

}

// Seed some dummy posts

const devUser = database.getUserByUsername("dev");

const alice = database.getUserByUsername("alice");

if (devUser && alice) {

const devPost = database.createPost(

devUser.id,

"Welcome to the new ModelScript social platform! We're excited to see what you build. #welcome",

);

database.createPost(alice.id, "Just testing out the new federated features. Very smooth so far! 🚀");

database.createPost(

devUser.id,

"Has anyone played with the new Modelica parser yet? The AST is looking really clean.",

undefined,

devPost.id,

);

const cadViewId = database.createArtifactView(

alice.id,

"cad_step",

"url",

JSON.stringify({ url: "http://localhost:3000/static-examples/drone-chassis/cad/drone.step" }),

"Drone Chassis CAD Model",

);

database.createPost(

alice.id,

"Just finished the initial 3D design for the drone chassis! The STEP file is attached below. Let me know what you think of the rotor placement. 🚁 #cad",

cadViewId,

);

// Vega-Lite trajectory plot

const vegaSpec = {

$schema: "https://vega.github.io/schema/vega-lite/v5.json",

description: "Simulation Trajectory of a Pendulum",

mark: "line",

encoding: {

x: { field: "time", type: "quantitative", title: "Time (s)" },

y: { field: "angle", type: "quantitative", title: "Angle (rad)" },

};

const vegaData = [

{ time: 0, angle: 0.5 },

{ time: 0.1, angle: 0.48 },

{ time: 0.2, angle: 0.42 },

{ time: 0.3, angle: 0.34 },

{ time: 0.4, angle: 0.24 },

{ time: 0.5, angle: 0.12 },

{ time: 0.6, angle: 0 },

{ time: 0.7, angle: -0.12 },

{ time: 0.8, angle: -0.24 },

{ time: 0.9, angle: -0.34 },

{ time: 1.0, angle: -0.42 },

];

const vegaViewId = database.createArtifactView(

devUser.id,

"vega-plot",

"inline",

JSON.stringify({ spec: vegaSpec, data: vegaData }),

"Pendulum Simulation Trajectory",

);

database.createPost(

devUser.id,

"Here is the simulation trajectory for the pendulum model over 1 second. Vega-Lite makes it so easy to visualize this! 📉",

vegaViewId,

);

// Mermaid diagram

const mermaidCode = `

graph TD

A[Start] --> B{Is it working?}

B -- Yes --> C[Great!]

B -- No --> D[Debug]

D --> B

const mermaidViewId = database.createArtifactView(

devUser.id,

"mermaid-diagram",

"inline",

JSON.stringify({ code: mermaidCode }),

"Flowchart Diagram",

);

database.createPost(

devUser.id,

"I've also mapped out the debugging process using a Mermaid diagram. What do you think? 🧜‍♀️",

mermaidViewId,

);

// PDF Document

const pdfViewId = database.createArtifactView(

devUser.id,

"pdf",

"inline",

JSON.stringify({ url: "http://localhost:3000/static-examples/drone-chassis/docs/drone-manual.pdf" }),

"Dummy PDF Document",

);

database.createPost(

devUser.id,

"Just reading through this interesting document. The PDF viewer embeds it perfectly! 📄",

pdfViewId,

);

// CSV Table

const csvData = `Name,Age,Role,Score\nAlice,28,Engineer,95\nBob,34,Designer,88\nCharlie,22,Intern,91`;

const csvViewId = database.createArtifactView(

devUser.id,

"csv",

"inline",

JSON.stringify({ data: csvData }),

"Team Statistics",

);

database.createPost(

devUser.id,

"Check out these team statistics! The CSV table viewer renders the data cleanly. 📊",

csvViewId,

);

// GCode Toolpath

const gcodeViewId = database.createArtifactView(

alice.id,

"gcode",

"upload",

JSON.stringify({

url: "https://raw.githubusercontent.com/mrdoob/three.js/master/examples/models/gcode/benchy.gcode",

thumbnail_url:

"https://images.unsplash.com/photo-1620917670359-4781498b0ed1?auto=format&fit=crop&q=80&w=600",

}),

"3DBenchy Toolpath",

);

database.createPost(

alice.id,

"Check out the sliced GCode for the 3DBenchy benchmark test. Ready for the machine!",

gcodeViewId,

);

// FEA Simulation

seedDroneFea(database);

seedCadAssembly(database);

seedDroneCfd(database);

seedScriptsAndTemplates(database);

await seedCfdAnimation(database);

}

await seedExamplePackages(libraryStorage, database, jobQueue);

await seedPrepackagedLibraries(libraryStorage, database, jobQueue);

res.json({ success: true });

} catch (err) {

console.error("[DevServer] Failed to reset dev data:", err);

res.status(500).json({ success: false, error: String(err) });

}

});

}

// ── Trending Topics Periodic Worker ──

// Run every 15 minutes (900,000 ms)

const decayWorkerInterval = setInterval(

() => {

try {

database.decayTrendingTopics();

} catch (err) {

console.error("Failed to decay trending topics:", err);

}

15 * 60 * 1000,

);

app.locals.decayWorkerInterval = decayWorkerInterval;

// ── RSS Worker ──

// Run immediately on startup, then every 15 minutes

const runRssWorker = () => {

import("./util/rss-worker.js")

.then(({ processRssFeeds }) => {

void processRssFeeds(database);

})

.catch(console.error);

};

runRssWorker();

const rssWorkerInterval = setInterval(runRssWorker, 15 * 60 * 1000);

app.locals.rssWorkerInterval = rssWorkerInterval;

// Increased limit for npm publish payloads (base64-encoded tarballs in JSON body)

app.use(express.json({ limit: "50mb" }));

// Rate Limiting

const limiter = rateLimit({

windowMs: 15 * 60 * 1000, // 15 minutes

max: 200, // Limit each IP to 200 requests per `window`

standardHeaders: true,

legacyHeaders: false,

message: { error: "Too many requests, please try again later." },

});

if (process.env["NODE_ENV"] === "production") {

app.use(limiter);

}

// CORS — allow all origins (VS Code webviews, Morsel, etc.)

app.use((_req, res, next) => {

res.header("Access-Control-Allow-Origin", "*");

res.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, PATCH, OPTIONS");

res.header("Access-Control-Allow-Headers", "Content-Type, Authorization");

if (_req.method === "OPTIONS") {

res.sendStatus(204);

return;

}

next();

});

// Auth routes

app.use("/api/v1/auth", authRouter(database));

app.use("/api/v1/users", usersRouter(database));

app.use("/api/v1/social", socialRouter(database));

app.use("/api/v1/repos", reposRouter(database));

app.use("/api/v1/search", searchRouter(database));

app.use("/api/v1/storage", storageRouter());

app.use("/", federationRouter(database));

// Mount the library routers

app.use("/api/v1/libraries", packagesRouter(libraryStorage, jobQueue, database));

app.use("/api/v1/libraries", publishRouter(libraryStorage, jobQueue, database));

app.use("/api/v1/libraries", rdfRouter(database));

app.use("/api/v1/libraries", graphqlRouter(database));

app.use("/api/v1/libraries", sparqlRouter(database));

app.use("/api/v1", simulateRouter(libraryStorage, jobQueue));

app.use("/api/v1", physicsRouter(jobQueue, database));

app.use("/api/v1/jobs", scriptsRouter(database));

// Artifact viewer routes (query artifact metadata, viewer configs)

app.use("/api/v1", artifactViewerRouter(database));

// Co-simulation routes (with MQTT client injection)

app.use("/api/v1/cosim", cosimRouter(mqttClient));

app.use("/api/v1/mqtt/participants", mqttParticipantsRouter(mqttClient));

app.use("/api/v1/historian", historianRouter(dbPool, mqttClient));

app.use("/api/v1/fmus", fmuRouter());

app.use("/api/v1/git", gitRouter());

app.use("/api/v1/gitlab", gitRouter()); // Keep for backwards compatibility

app.use("/api/thumbnails", express.static(path.resolve(process.cwd(), "public/thumbnails")));

app.use("/uploads", express.static(path.resolve(process.cwd(), "uploads")));

if (process.env["NODE_ENV"] !== "production" || process.env["SEED_EXAMPLES"] === "true") {

app.use("/static-examples", express.static(path.resolve(process.cwd(), "../../packages/examples")));

}

// ── npm-compatible registry (mounted at root for `npm --registry=` compat) ──

app.use("/", npmAuthRouter(database));

app.use("/", npmRegistryRouter(database));

// Health check

app.get("/health", (_req, res) => {

res.json({

status: "ok",

mqtt: mqttClient ? "connected" : "unavailable",

historian: dbPool ? "connected" : "unavailable",

});

return app;

}

modelscript/apps/api/src/app.ts at main · modelscript/modelscript · GitHub

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modelscript/apps/api/src/app.ts at main · modelscript/modelscript · GitHub

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