Im working with nextjs and convex. Working in a dev environment and everything was working well until i uploaded my nextjs project to vercel. Now convex data only loads on that site and doesnt load in the local environment anymore. @meager escarp
#Deployment error
wary remnant
meager escarpBOT
Hi @wary remnant. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
It seems like you're experiencing an issue where your Convex data only loads on your Vercel deployment and not in your local development environment. This could be due to a variety of reasons, such as environment variable misconfigurations or issues with your Convex setup.
Here are a few things you could check:
-
Environment Variables: Ensure that your environment variables are correctly set up in both your local and production environments. For instance, you might need to set the
CLERK_JWT_ISSUER_DOMAINas mentioned in this Discord thread (https://discord.com/channels/1019350475847499849/1233954209553055764). -
Convex Setup: Make sure that your Convex setup is correctly configured for both local and production environments. You might find this documentation (https://docs.convex.dev/production/hosting/vercel) helpful.
-
Authentication Provider: If you're using an authentication provider like Clerk or Auth0, ensure that it's configured to accept both your local and production URLs. Note that Clerk does not support
<https://<site-name>.vercel.app,> so you'll have to configure a custom domain as mentioned in this documentation (https://docs.convex.dev/production/hosting/vercel#authentication).
If you're still experiencing issues, it would be helpful to have more specific details about the error messages you're seeing. This could help in diagnosing the problem more accurately.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp how can i protect my nextjs api routes to only accept requests from my convex action requests?
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To protect your Next.js API routes to only accept requests from your Convex action requests, you can implement a CORS (Cross-Origin Resource Sharing) policy. CORS is a mechanism that uses additional HTTP headers to tell browsers to give a web application running at one origin, access to selected resources from a different origin.
Here's a basic example of how you can implement CORS in your Convex setup, as mentioned in this guide (https://stack.convex.dev/a-developers-guide-to-cors#4-implementing-cors-on-your-own):
import { httpAction } from "./_generated/server";
export default httpAction(async (_, request) => {
// Handle preflight requests
if (request.method === "OPTIONS") {
return new Response(null, {
status: 204,
headers: {
"Access-Control-Allow-Origin": "<https://your-convex-app.com",>
"Access-Control-Allow-Methods": "GET, POST, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type",
},
});
}
// Handle the actual request
if (request.method === "GET" || request.method === "POST") {
// Your logic here
const responseBody = JSON.stringify({ message: "Hello from Convex!" });
return new Response(responseBody, {
status: 200,
headers: {
"Content-Type": "application/json",
"Access-Control-Allow-Origin": "<https://your-convex-app.com",>
},
});
}
// Handle unsupported methods
return new Response("Method Not Allowed", { status: 405 });
});
In this example, replace "<https://your-convex-app.com"> with the origin of your Convex app. This will allow requests from your Convex app and deny all others.
Please note that this is a basic implementation and you might need to adjust it according to your specific needs. For more information, you can refer to the Convex documentation on CORS (https://docs.convex.dev/functions/http-actions#cors).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
how can i obtain the IP of my convex deployment @meager escarp
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
The IP address of your Convex deployment is not directly exposed or accessible via the Convex platform. However, you can obtain the URL of your Convex deployment.
There are two URLs associated with your Convex deployment:
CONVEX_CLOUD_URL: Your deployment URL for use with Convex clients. For example,<https://dusty-nightingale-847.convex.cloud.>CONVEX_SITE_URL: Your deployment site URL for use with HTTP Actions. For example,<https://dusty-nightingale-847.convex.site.>
These URLs are available as environment variables in Convex functions as mentioned in the Convex documentation (https://docs.convex.dev/production/environment-variables#system-environment-variables).
You can also find your deployment URL in the Convex dashboard under Settings > URL and Deploy Key (https://docs.convex.dev/dashboard/deployments/deployment-settings).
Please note that if you need the IP address for purposes such as whitelisting, you might need to consider other methods, as the IP address for cloud services can change.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp currently anyone who finds my deployment url can abuse it to fetch data, how can i block requests outside of my website's?
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To prevent unauthorized access to your Convex deployment, you can implement a Cross-Origin Resource Sharing (CORS) policy. CORS is a mechanism that uses additional HTTP headers to tell browsers to give a web application running at one origin, access to selected resources from a different origin.
Here's a basic example of how you can implement CORS in your Convex setup, as mentioned in this guide (https://stack.convex.dev/a-developers-guide-to-cors#4-implementing-cors-on-your-own):
import { httpAction } from "./_generated/server";
export default httpAction(async (_, request) => {
// Handle preflight requests
if (request.method === "OPTIONS") {
return new Response(null, {
status: 204,
headers: {
"Access-Control-Allow-Origin": "<https://your-website.com",>
"Access-Control-Allow-Methods": "GET, POST, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type",
},
});
}
// Handle the actual request
if (request.method === "GET" || request.method === "POST") {
// Your logic here
const responseBody = JSON.stringify({ message: "Hello from Convex!" });
return new Response(responseBody, {
status: 200,
headers: {
"Content-Type": "application/json",
"Access-Control-Allow-Origin": "<https://your-website.com",>
},
});
}
// Handle unsupported methods
return new Response("Method Not Allowed", { status: 405 });
});
In this example, replace "<https://your-website.com"> with the origin of your website. This will allow requests from your website and deny all others.
Please note that this is a basic implementation and you might need to adjust it according to your specific needs. For more information, you can refer to the Convex documentation on CORS (https://docs.convex.dev/functions/http-actions#cors).
Remember, CORS is about protecting the user, not the server. An attacker can always use tools like cURL to send requests directly to your server. It's crucial to implement proper authentication and authorization on your server independently of CORS as mentioned in this guide (https://stack.convex.dev/a-developers-guide-to-cors#3-myths-about-cors).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp ✖ Error: Unable to push deployment config to DOMAIN
Error fetching POST DOMAIN/api/push_config 400 Bad Request: InvalidModules: Hit an error while pushing:
Loading the pushed modules encountered the following
error:
The default export of convex/http.js is not a Router.
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
The error message you're seeing indicates that the default export of your convex/http.js file is not a Router. In Convex, the convex/http.js file is used to define HTTP actions, and it should export a Router.
Here's a basic example of how a convex/http.js file should look:
import { Router } from "convex/server";
const router = new Router();
router.get("/my-endpoint", async (request) => {
// Your logic here
return new Response("Hello, world!");
});
export default router;
In this example, a new Router is created, a GET endpoint is defined, and then the router is exported as the default export.
Please ensure that your convex/http.js file follows a similar structure. If you're still experiencing issues, it would be helpful to have more specific details about the contents of your convex/http.js file. This could help in diagnosing the problem more accurately. For more information, you can refer to the Convex documentation on HTTP Actions (https://docs.convex.dev/functions/http-actions).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp how do i integrate the httpAction cors into the http.js file
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To integrate the httpAction CORS into the http.js file, you need to define routes for your HTTP actions and handle CORS within these routes. Here's an example of how you can do this:
import { httpRouter, httpAction } from "convex/server";
const http = httpRouter();
http.route({
path: "/your-endpoint",
method: "OPTIONS",
handler: httpAction(async (_, request) => {
// Handle preflight requests
if (request.method === "OPTIONS") {
return new Response(null, {
status: 204,
headers: {
"Access-Control-Allow-Origin": "<https://your-website.com",>
"Access-Control-Allow-Methods": "GET, POST, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type",
},
});
}
}),
});
http.route({
path: "/your-endpoint",
method: "GET",
handler: httpAction(async (_, request) => {
// Handle the actual request
if (request.method === "GET") {
// Your logic here
const responseBody = JSON.stringify({ message: "Hello from Convex!" });
return new Response(responseBody, {
status: 200,
headers: {
"Content-Type": "application/json",
"Access-Control-Allow-Origin": "<https://your-website.com",>
},
});
}
// Handle unsupported methods
return new Response("Method Not Allowed", { status: 405 });
}),
});
export default http;
In this example, replace "<https://your-website.com"> with the origin of your website and /your-endpoint with the path of your endpoint. This will allow requests from your website and deny all others.
Please note that this is a basic implementation and you might need to adjust it according to your specific needs. For more information, you can refer to the Convex documentation on CORS (https://docs.convex.dev/functions/http-actions#cors).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp if i have a ts file which contains all the functions to a certain schema how do i add it in the http, so all requests to any of those functions are blocked for all but one website
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To restrict access to your Convex functions to only one website, you can define HTTP actions for these functions in your http.js file and implement CORS within these actions. Here's an example of how you can do this:
import { httpRouter, httpAction } from "convex/server";
import { yourFunction } from "./yourFunctionsFile";
const http = httpRouter();
http.route({
path: "/your-endpoint",
method: "OPTIONS",
handler: httpAction(async (_, request) => {
// Handle preflight requests
if (request.method === "OPTIONS") {
return new Response(null, {
status: 204,
headers: {
"Access-Control-Allow-Origin": "<https://your-website.com",>
"Access-Control-Allow-Methods": "GET, POST, OPTIONS",
"Access-Control-Allow-Headers": "Content-Type",
},
});
}
}),
});
http.route({
path: "/your-endpoint",
method: "GET",
handler: httpAction(async (ctx, request) => {
// Handle the actual request
if (request.method === "GET") {
// Call your function here
const result = await yourFunction(ctx, request);
const responseBody = JSON.stringify(result);
return new Response(responseBody, {
status: 200,
headers: {
"Content-Type": "application/json",
"Access-Control-Allow-Origin": "<https://your-website.com",>
},
});
}
// Handle unsupported methods
return new Response("Method Not Allowed", { status: 405 });
}),
});
export default http;
In this example, replace "<https://your-website.com"> with the origin of your website, /your-endpoint with the path of your endpoint, and yourFunction with the function you want to call. This will allow requests from your website and deny all others.
Please note that this is a basic implementation and you might need to adjust it according to your specific needs. For more information, you can refer to the Convex documentation on CORS (https://docs.convex.dev/functions/http-actions#cors).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp and how would the request look from the front-end? Right now i use api.fileName.functionName
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
Sorry @wary remnant, I am experiencing especially high traffic right now, please try again. :technologist:
wary remnant
@meager escarp and how would the request look from the front-end? Right now i use api.fileName.functionName
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To make a request from the front-end to the HTTP action you've defined, you would use the fetch API or a library like axios to send a HTTP request to the endpoint you've defined in your http.js file.
Here's an example of how you can do this using the fetch API:
fetch('<https://your-convex-deployment-url.com/your-endpoint',> {
method: 'GET', // or 'POST'
headers: {
'Content-Type': 'application/json',
},
// Include any necessary data in the body of the request
body: JSON.stringify({ key: 'value' }),
})
.then(response => response.json())
.then(data => console.log(data))
.catch((error) => {
console.error('Error:', error);
});
In this example, replace '<https://your-convex-deployment-url.com/your-endpoint'> with the URL of your Convex deployment and the path of your endpoint.
Please note that this is a basic implementation and you might need to adjust it according to your specific needs. For more information, you can refer to the MDN documentation on the Fetch API (https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
wary remnant
@meager escarp currently knowledgable users are able to find the websocket of my convex deployment and connect to it and access data. How can i block their connections?
meager escarpBOT
Let me check the knowledge base for you. One moment! :books:
To secure your Convex deployment and prevent unauthorized access, you should implement proper authentication and authorization mechanisms. Convex provides an authentication system called Convex Auth, which allows you to authenticate your React app that talks to your Convex backend over a WebSocket.
Here's how Convex Auth works:
-
Convex Auth makes two values available to the client JavaScript: a refresh token, used to maintain a session (including across page loads), and a JWT access token, which is sent over the WebSocket connection back to the backend.
-
To allow immediate authentication across page loads, both tokens are stored in
localStorageby default, but you can choose a different storage mechanism via thestorageprop. -
The refresh token can be used only once to get a new access token. And using an "old" refresh token will invalidate the whole session (this is called refresh token reuse detection).
-
Since these tokens are accessible via JavaScript, to keep your authentication secure you should take every precaution to avoid XSS and similar vulnerabilities.
You can find more details about Convex Auth in the Convex documentation (https://labs.convex.dev/auth/security#client-secrets-storage).
If you want to use a custom authentication provider, Convex also supports that. You can find more details in this Discord support thread (https://discord.com/channels/1019350475847499849/1217495727702409328).