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#Lucia auth and svelte
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I'm sorry, but as an AI, I'm unable to access or view attached files. However, I can provide some information on using Lucia auth with Svelte based on the knowledge sources provided.
Lucia is a lightweight authentication library that can be used with Convex, a tool for simplifying web application development. It can be used with Svelte, a popular JavaScript framework for building user interfaces.
Here's a basic example of how you might set up Lucia with Convex in a Svelte application:
const lucia = new Lucia(new ConvexAdapter(db as DatabaseWriter), {
getUserAttributes: (attributes) => {
return {
username: attributes.username
};
}
});
return lucia;
(Source: Discord Support Thread: sveltekit & authentication > Answers Part 10 (https://discord.com/channels/1019350475847499849/1273579476592365708))
There are also several examples of Svelte projects using Lucia and Convex for authentication available on GitHub:
- vynxc/lucia-svelte-convex-demo (https://github.com/vynxc/lucia-svelte-convex-demo)
- shamscorner/tutpick (https://github.com/shamscorner/tutpick/tree/feat/auth)
Please note that these examples are provided by community members and may not represent the best or most up-to-date practices. Always refer to the official documentation for Lucia, Convex, and Svelte for the most accurate information.
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To get the identity of the user inside a query, you can use the ctx.session object which is provided by the queryWithAuth wrapper. This object contains the user's session information, including their identity.
Here's how you can modify your query to get the user's identity:
export const get = queryWithAuth({
args: {},
handler: async (ctx) => {
// Perform auth check / get identity
const identity = ctx.session?.user;
if (!identity) {
throw new Error('Not authenticated');
}
const tasks = await ctx.db
.query('tasks')
.filter((task) => task.userId === identity._id)
.collect();
return tasks.map((task) => ({ ...task, assigner: 'tom' })); // adjust as needed
}
});
In this code, ctx.session?.user is used to get the user's identity. If the user is not authenticated, an error is thrown. Then, the tasks are filtered based on the user's ID (identity._id).
Please note that the user object structure depends on what you return in the getUserAttributes function when you set up Lucia with the Convex adapter. In the example provided in the knowledge sources, the user object includes _id, _creationTime, and email fields.
(Source: Stack > Lucia Auth: Implement Custom Authentication > Step 3: Leverage Lucia in our functions - queries Part 1 (https://stack.convex.dev/convex-with-lucia#step-3-leverage-lucia-in-our-functions---queries))
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The error message you're seeing suggests that the session property does not exist on the ctx object. This could be due to the way you've set up your queryWithAuth wrapper or the ctx object itself.
In the knowledge sources provided, the session property is added to the ctx object within the queryWithAuth wrapper. Here's an example of how it's done:
export const getLoggedInUserEmail = queryWithAuth({
args: {},
handler: async (ctx) => {
return ctx.session?.user.email;
}
});
(Source: Stack > Lucia Auth: Implement Custom Authentication > Step 3: Leverage Lucia in our functions - queries Part 2 (https://stack.convex.dev/convex-with-lucia#step-3-leverage-lucia-in-our-functions---queries))
If you're not seeing the session property on your ctx object, it could be that your queryWithAuth wrapper isn't correctly adding it. You might need to adjust your queryWithAuth wrapper to ensure it's correctly adding the session property to the ctx object.
If you're still having trouble, it might be helpful to review the Lucia authentication guide (https://stack.convex.dev/convex-with-lucia#step-3-leverage-lucia-in-our-functions---queries) or seek help from the Convex community.
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Your queryWithAuth implementation looks correct. It adds a sessionId argument to the query, retrieves the session using getValidExistingSession, and then passes the session context and the auth object to the handler.
However, it seems like you're trying to access the user's session with ctx.session, but in your queryWithAuth implementation, you're actually adding the session to the context as userSessionContext.
So, to access the user's session in your query, you should use ctx.userSessionContext instead of ctx.session. Here's how you can modify your query:
export const get = queryWithAuth({
args: {},
handler: async (ctx) => {
// Perform auth check / get identity
const identity = ctx.userSessionContext?.user;
if (!identity) {
throw new Error('Not authenticated');
}
const tasks = await ctx.db
.query('tasks')
.filter((task) => task.userId === identity._id)
.collect();
return tasks.map((task) => ({ ...task, assigner: 'tom' })); // adjust as needed
}
});
Please note that the structure of the user object (identity) depends on what you return in the getUserAttributes function when you set up Lucia with the Convex adapter. In the example provided in the knowledge sources, the user object includes _id, _creationTime, and email fields.
(Source: Stack > Lucia Auth: Implement Custom Authentication > Step 3: Leverage Lucia in our functions - queries Part 1 (https://stack.convex.dev/convex-with-lucia#step-3-leverage-lucia-in-our-functions---queries))
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The error message you're seeing, ArgumentValidationError, is indicating that the sessionId field is missing from the object being validated. This error typically occurs when a function is expecting an argument, but it's not provided.
In your case, the sessionId field is expected to be either null or a string, as defined by the validator v.union(v.null(), v.string()).
If the sessionId field is optional, you can wrap the validator in v.optional(...), like this:
v.object({ sessionId: v.optional(v.union(v.null(), v.string())) })
This will allow the object to pass validation even if the sessionId field is not provided.
If the sessionId field is required, you need to ensure that the object you're validating includes this field. The object should look something like this:
{
sessionId: 'some-session-id' // or null
}