---
name: convex-http-e39622886555
description: HTTP actions for webhooks and API endpoints in Convex. Use when building webhook handlers (Stripe, Clerk, GitHub), creating REST API endpoints, handling file uploads/downloads, or implementing CORS for browser requests.
---

# Convex HTTP Actions

## Basic HTTP Router

```typescript
// convex/http.ts
import { httpRouter } from "convex/server";
import { httpAction } from "./_generated/server";

const http = httpRouter();

http.route({
  path: "/health",
  method: "GET",
  handler: httpAction(async () => {
    return new Response(JSON.stringify({ status: "ok" }), {
      status: 200,
      headers: { "Content-Type": "application/json" },
    });
  }),
});

export default http;
```

## Webhook Handling

```typescript
// convex/http.ts
import { httpRouter } from "convex/server";
import { httpAction } from "./_generated/server";
import { internal } from "./_generated/api";

const http = httpRouter();

http.route({
  path: "/webhooks/stripe",
  method: "POST",
  handler: httpAction(async (ctx, request) => {
    const signature = request.headers.get("stripe-signature");
    if (!signature) {
      return new Response("Missing signature", { status: 400 });
    }

    const body = await request.text();

    try {
      await ctx.runAction(internal.stripe.verifyAndProcess, { body, signature });
      return new Response("OK", { status: 200 });
    } catch (error) {
      return new Response("Webhook error", { status: 400 });
    }
  }),
});

export default http;
```

## Webhook Signature Verification

```typescript
// convex/stripe.ts
"use node";

import { internalAction } from "./_generated/server";
import { v } from "convex/values";
import { internal } from "./_generated/api";
import Stripe from "stripe";

const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);

export const verifyAndProcess = internalAction({
  args: { body: v.string(), signature: v.string() },
  returns: v.null(),
  handler: async (ctx, args) => {
    const event = stripe.webhooks.constructEvent(
      args.body,
      args.signature,
      process.env.STRIPE_WEBHOOK_SECRET!
    );

    switch (event.type) {
      case "checkout.session.completed":
        await ctx.runMutation(internal.payments.handleCheckout, {
          sessionId: event.data.object.id,
        });
        break;
    }
    return null;
  },
});
```

## CORS Configuration

```typescript
const corsHeaders = {
  "Access-Control-Allow-Origin": "*",
  "Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, OPTIONS",
  "Access-Control-Allow-Headers": "Content-Type, Authorization",
};

// Handle preflight
http.route({
  path: "/api/data",
  method: "OPTIONS",
  handler: httpAction(async () => {
    return new Response(null, { status: 204, headers: corsHeaders });
  }),
});

// Actual endpoint
http.route({
  path: "/api/data",
  method: "POST",
  handler: httpAction(async (ctx, request) => {
    const body = await request.json();
    return new Response(JSON.stringify({ success: true }), {
      status: 200,
      headers: { "Content-Type": "application/json", ...corsHeaders },
    });
  }),
});
```

## Path Parameters

Use `pathPrefix` for dynamic routes:

```typescript
http.route({
  pathPrefix: "/api/users/",
  method: "GET",
  handler: httpAction(async (ctx, request) => {
    const url = new URL(request.url);
    const userId = url.pathname.replace("/api/users/", "");

    const user = await ctx.runQuery(internal.users.get, { userId });
    if (!user) return new Response("Not found", { status: 404 });

    return Response.json(user);
  }),
});
```

## API Key Authentication

```typescript
http.route({
  path: "/api/protected",
  method: "GET",
  handler: httpAction(async (ctx, request) => {
    const apiKey = request.headers.get("X-API-Key");
    if (!apiKey) {
      return Response.json({ error: "Missing API key" }, { status: 401 });
    }

    const isValid = await ctx.runQuery(internal.auth.validateApiKey, { apiKey });
    if (!isValid) {
      return Response.json({ error: "Invalid API key" }, { status: 403 });
    }

    const data = await ctx.runQuery(internal.data.getProtected, {});
    return Response.json(data);
  }),
});
```

## File Upload

```typescript
http.route({
  path: "/api/upload",
  method: "POST",
  handler: httpAction(async (ctx, request) => {
    const bytes = await request.bytes();
    const contentType = request.headers.get("Content-Type") ?? "application/octet-stream";

    const blob = new Blob([bytes], { type: contentType });
    const storageId = await ctx.storage.store(blob);

    return Response.json({ storageId });
  }),
});
```

## File Download

```typescript
http.route({
  pathPrefix: "/files/",
  method: "GET",
  handler: httpAction(async (ctx, request) => {
    const url = new URL(request.url);
    const fileId = url.pathname.replace("/files/", "") as Id<"_storage">;

    const fileUrl = await ctx.storage.getUrl(fileId);
    if (!fileUrl) return new Response("Not found", { status: 404 });

    return Response.redirect(fileUrl, 302);
  }),
});
```

## Error Handling Helper

```typescript
function jsonResponse(data: unknown, status = 200) {
  return new Response(JSON.stringify(data), {
    status,
    headers: { "Content-Type": "application/json" },
  });
}

http.route({
  path: "/api/process",
  method: "POST",
  handler: httpAction(async (ctx, request) => {
    try {
      const body = await request.json();
      if (!body.data) {
        return jsonResponse({ error: "Missing data field" }, 400);
      }
      const result = await ctx.runMutation(internal.process.handle, body);
      return jsonResponse({ success: true, result });
    } catch (error) {
      return jsonResponse({ error: "Internal server error" }, 500);
    }
  }),
});
```

## References

- HTTP Actions: https://docs.convex.dev/functions/http-actions


---
Source attribution: aaronvanston
Original project: https://github.com/aaronvanston/skills-convex/blob/5ea8c54ce73b814da9d50d384765c1501c76d999/skills/convex-http/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: aaronvanston
Original project: https://github.com/aaronvanston/skills-convex/blob/5ea8c54ce73b814da9d50d384765c1501c76d999/skills/convex-http/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, Growth Product Manager, Product Manager
Specialties: API, Backend
Tools: GitHub, Stripe
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: e0cb163bda55f727a381cafc33b41bca4856ce64be3e74856194e362a53c54e6