fallen cloak
<button onClick={upload}>sample click</button>
'use server'
import { cookies } from 'next/headers'
export async function upload() {
// Get cookie
const value = cookies().get('sb-cyawegwcuomwvbpndfkd-auth-token')?.value
console.log(value)
}
Uncaught (in promise) Error: Only plain objects, and a few built-ins, can be passed to Server Actions. Classes or null prototypes are not supported.
at Array.resolveToJSON (react-server-dom-webpack-client.browser.development.js:966:15)
blissful wedgeBOT
Hi @fallen cloak. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
The error you're encountering is due to the fact that you cannot directly pass a server action to the onClick event of a button in a Client Component. This is because onClick passes the click event as an argument, which is not a plain object and thus not supported by Server Actions.
To resolve this issue, you should use a form with the formAction attribute instead of directly using onClick. Here is how you can modify your code:
'use client'
import { upload } from '@/path/to/your/actions'
export default function YourComponent() {
return (
<form>
<button formAction={upload}>sample click</button>
</form>
)
}
'use server'
import { cookies } from 'next/headers'
export async function upload() {
// Get cookie
const value = cookies().get('sb-cyawegwcuomwvbpndfkd-auth-token')?.value
console.log(value)
}
By using the formAction attribute, you ensure that the server action is invoked correctly without passing the click event object.
For more details, you can refer to the Next.js documentation on Server Actions and Mutations (https://nextjs.org/docs/app/building-your-application/data-fetching/server-actions-and-mutations#non-form-elements).
fallen cloak
@blissful wedge can you explain what is happening here specially about cookies, does cookies store in clicnt browser right ?
import { createServerClient, type CookieOptions } from '@supabase/ssr'
import { cookies } from 'next/headers'
export function createClient() {
const cookieStore = cookies()
return createServerClient(
process.env.NEXT_PUBLIC_SUPABASE_URL!,
process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
{
cookies: {
get(name: string) {
return cookieStore.get(name)?.value
},
set(name: string, value: string, options: CookieOptions) {
try {
cookieStore.set({ name, value, ...options })
} catch (error) {
// The set method was called from a Server Component.
// This can be ignored if you have middleware refreshing
// user sessions.
}
},
remove(name: string, options: CookieOptions) {
try {
cookieStore.set({ name, value: '', ...options })
} catch (error) {
// The delete method was called from a Server Component.
// This can be ignored if you have middleware refreshing
// user sessions.
}
},
},
}
)
}
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
Sure, let's break down what is happening in the provided code, especially focusing on how cookies are handled.
The code snippet is creating a Supabase client that can be used on the server side. It uses the @supabase/ssr package to create a server-side Supabase client and integrates it with Next.js's cookie handling.
Cookies are small pieces of data stored in the user's browser. They are sent with every HTTP request to the server, allowing the server to recognize users and maintain session information.
import { createServerClient, type CookieOptions } from '@supabase/ssr'
import { cookies } from 'next/headers'
export function createClient() {
const cookieStore = cookies()
return createServerClient(
process.env.NEXT_PUBLIC_SUPABASE_URL!,
process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
{
cookies: {
get(name: string) {
return cookieStore.get(name)?.value
},
set(name: string, value: string, options: CookieOptions) {
try {
cookieStore.set({ name, value, ...options })
} catch (error) {
// The `set` method was called from a Server Component.
// This can be ignored if you have middleware refreshing
// user sessions.
}
},
remove(name: string, options: CookieOptions) {
try {
cookieStore.set({ name, value: '', ...options })
} catch (error) {
// The `delete` method was called from a Server Component.
// This can be ignored if you have middleware refreshing
// user sessions.
}
},
},
}
)
}
Import Statements:
createServerClient and CookieOptions are imported from @supabase/ssr.cookies is imported from next/headers.Function createClient:
Cookie Store:
const cookieStore = cookies() initializes a cookie store using Next.js's cookies API.Supabase Client Configuration:
createServerClient function is called with the Supabase URL and anonymous key, along with a custom cookie handler.Custom Cookie Handler:
get Method: Retrieves the value of a cookie by its name.set Method: Sets a cookie with the specified name, value, and options. If called from a Server Component, it catches and ignores the error.remove Method: Removes a cookie by setting its value to an empty string. If called from a Server Component, it catches and ignores the error.set and remove methods include error handling to manage cases where these methods are called from Server Components, which is not allowed.
fallen cloak
@blissful wedge how to make the input empty after server action trigger ?
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
To make an input field empty after a server action is triggered, you can reset the state of the input field in your client component. Here’s how you can achieve this using a form and a server action in Next.js:
Create the Server Action:
Define your server action that will handle the form submission.
'use server'
import { cookies } from 'next/headers'
export async function upload() {
// Get cookie
const value = cookies().get('sb-cyawegwcuomwvbpndfkd-auth-token')?.value
console.log(value)
// Perform your server-side logic here
}
Create the Client Component:
In your client component, use a form to trigger the server action and manage the input state using React's useState hook.
'use client'
import { useState } from 'react'
import { upload } from '@/path/to/your/actions'
export default function YourComponent() {
const [inputValue, setInputValue] = useState('')
const handleSubmit = async (event: React.FormEvent) => {
event.preventDefault()
await upload()
setInputValue('') // Reset the input field
}
return (
<form onSubmit={handleSubmit}>
<input
type="text"
value={inputValue}
onChange={(e) => setInputValue(e.target.value)}
/>
<button type="submit">Submit</button>
</form>
)
}
upload function is defined as a server action that performs the necessary server-side logic.inputValue state is used to manage the value of the input field.handleSubmit function handles the form submission, calls the server action, and then resets the input field by setting inputValue to an empty string.
fallen cloak
@blissful wedge
"use client"
import { AddTodo } from "./_action/add-todo";
import { SearchParamsType } from "@/app/_type/search-param";
import { useFormState } from 'react-dom';
import {useRef} from 'react'
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const addTodoRef = useRef(null)
// const addTodoWithParams = AddTodo.bind(null, searchParams);
const [addTodoState, formAddTodo] = useFormState(AddTodo, {
error: null,
});
return (
<form action={formAddTodo}>
<input type="text" name="newTodo" placeholder="add new todo here" ref={addTodoRef}/>
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
I need to pass a param to formAddTodo
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
To pass a parameter to formAddTodo in your AddTodoForm component, you can use the bind method to bind the parameter to the server action. This way, the parameter will be included when the form is submitted.
Here's how you can modify your code to achieve this:
Bind the Parameter to the Server Action:
Use the bind method to bind the searchParams to the AddTodo server action.
'use client'
import { AddTodo } from "./_action/add-todo";
import { SearchParamsType } from "@/app/_type/search-param";
import { useFormState } from 'react-dom';
import { useRef } from 'react';
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const addTodoRef = useRef(null);
// Bind the searchParams to the AddTodo server action
const addTodoWithParams = AddTodo.bind(null, searchParams);
const [addTodoState, formAddTodo] = useFormState(addTodoWithParams, {
error: null,
});
return (
<form action={formAddTodo}>
<input type="text" name="newTodo" placeholder="add new todo here" ref={addTodoRef} />
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
bind method is used to create a new function (addTodoWithParams) that has searchParams pre-bound as the first argument. This ensures that searchParams will be passed to the AddTodo server action when the form is submitted.formAddTodo function, which is returned by useFormState, is used as the action attribute of the form. When the form is submitted, formAddTodo will call AddTodo with searchParams and the form data.bind Method (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_objects/Function/bind)searchParams parameter to the formAddTodo function, ensuring that it is included when the form is submitted.
fallen cloak
@blissful wedge
No overload matches this call.
Overload 1 of 2, '(action: (state: { error: string | null; }) => { error: string | null; } | Promise<{ error: string | null; }>, initialState: { error: string | null; }, permalink?: string | undefined): [state: ...]', gave the following error.
Argument of type '(formData: FormData) => Promise<{ error: string | null; }>' is not assignable to parameter of type '(state: { error: string | null; }) => { error: string | null; } | Promise<{ error: string | null; }>'.
Types of parameters 'formData' and 'state' are incompatible.
Type '{ error: string | null; }' is missing the following properties from type 'FormData': append, delete, get, getAll, and 7 more.
"use client"
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const addTodoRef = useRef(null)
const addTodoWithParams = AddTodo.bind(null, searchParams);
const [addTodoState, formAddTodo] = useFormState(addTodoWithParams, {
error: null,
});
return (
<form action={formAddTodo}>
<input type="text" name="newTodo" placeholder="add new todo here" ref={addTodoRef}/>
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
'use server';
export const AddTodo = async (searchParams: SearchParamsType, formData: FormData): Promise<{ error: string | null }> => {
const newTodo = formData.get('newTodo');
const supabase = createClient()
const { error } = await supabase
.from('todos')
.insert([{ todo: newTodo }])
.select();
const params = new URLSearchParams();
if (searchParams.page) params.append('page', searchParams.page);
if (error) {
return {
error: "error"
}
}
return redirect(`/?${params.toString()}`);
};
Let me check the knowledge base for you. One moment! :books:
The error you're encountering is due to a type mismatch between the expected parameters of the useFormState function and the parameters of your AddTodo function. Specifically, useFormState expects the action to take a state object as its first parameter, but your AddTodo function takes searchParams and formData.
To resolve this, you need to adjust the useFormState call to match the expected types. Here’s how you can do it:
Adjust the AddTodo Function:
Ensure that the AddTodo function matches the expected signature for useFormState.
'use server';
export const AddTodo = async (state: { error: string | null }, formData: FormData): Promise<{ error: string | null }> => {
const newTodo = formData.get('newTodo');
const supabase = createClient();
const { error } = await supabase
.from('todos')
.insert([{ todo: newTodo }])
.select();
const params = new URLSearchParams();
if (state.page) params.append('page', state.page);
if (error) {
return {
error: "error"
};
}
return redirect(`/?${params.toString()}`);
};
Update the Client Component:
Bind the searchParams to the AddTodo function and use useFormState correctly.
'use client'
import { AddTodo } from "./_action/add-todo";
import { SearchParamsType } from "@/app/_type/search-param";
import { useFormState } from 'react-dom';
import { useRef } from 'react';
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const addTodoRef = useRef(null);// Bind the searchParams to the AddTodo server action
const addTodoWithParams = (state: { error: string | null }, formData: FormData) => AddTodo({ ...state, ...searchParams }, formData);
const [addTodoState, formAddTodo] = useFormState(addTodoWithParams, {
error: null,
});
return (
<form action={formAddTodo}>
<input type="text" name="newTodo" placeholder="add new todo here" ref={addTodoRef} />
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
### Explanation
- **Server Action**: The `AddTodo` function now takes a state object as its first parameter, which includes the `error` property and any other properties you need (like `page`).
- **Client Component**: The `addTodoWithParams` function is created to merge the `state` and `searchParams` before calling `AddTodo`. This ensures that the parameters match the expected types for `useFormState`.
### References
- **Next.js Documentation on Server Actions and Mutations** (<https://nextjs.org/docs/app/building-your-application/data-fetching/server-actions-and-mutations#passing-additional-arguments>)
- **React Documentation on Forms** (<https://reactjs.org/docs/forms.html>)
By following these steps, you can ensure that the parameters passed to `formAddTodo` are correctly typed, resolving the type mismatch error.
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
----------------------@blissful wedge
i want to make the input empty after action triggered
"use client"
import { AddTodo } from "./_action/add-todo";
import { SearchParamsType } from "@/app/_type/search-param";
import {useRef} from "react"
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const addTodoRef = useRef(null)
const addTodoWithParams = AddTodo.bind(null, searchParams);
return (
<form action={addTodoWithParams}>
<input type="text" name="newTodo" placeholder="add new todo here" ref={addTodoRef}/>
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
'use server';
import { SearchParamsType } from '@/app/_type/search-param';
import { createClient } from '@/utils/supabase/server';
import { redirect } from 'next/navigation';
export const AddTodo = async (searchParams: SearchParamsType, formData: FormData) => {
const newTodo = formData.get('newTodo');
const supabase = createClient()
const { error } = await supabase
.from('todos')
.insert([{ todo: newTodo }])
.select();
const params = new URLSearchParams();
if (searchParams.page) params.append('page', searchParams.page);
if (error) {
return redirect('/error');
}
return redirect(`/?${params.toString()}`);
};
Let me check the knowledge base for you. One moment! :books:
To make the input field empty after the server action is triggered, you can use React's useState hook to manage the input value and reset it after the form submission. Here’s how you can achieve this:
Update the Client Component:
Use useState to manage the input value and reset it after the form submission.
"use client"
import { useState, useRef } from "react";
import { AddTodo } from "./_action/add-todo";
import { SearchParamsType } from "@/app/_type/search-param";
export default function AddTodoForm({ searchParams }: { searchParams: SearchParamsType }) {
const [inputValue, setInputValue] = useState("");
const addTodoRef = useRef(null);
const addTodoWithParams = AddTodo.bind(null, searchParams);
const handleSubmit = async (event: React.FormEvent) => {
event.preventDefault();
await addTodoWithParams(new FormData(event.currentTarget as HTMLFormElement));
setInputValue(""); // Reset the input field
};
return (
<form onSubmit={handleSubmit}>
<input
type="text"
name="newTodo"
placeholder="add new todo here"
ref={addTodoRef}
value={inputValue}
onChange={(e) => setInputValue(e.target.value)}
/>
<button type="submit" className="bg-red-800 text-black">
submit
</button>
</form>
);
}
Server Action:
The server action remains the same as it handles the form submission and redirects accordingly.
'use server';
import { SearchParamsType } from '@/app/_type/search-param';
import { createClient } from '@/utils/supabase/server';
import { redirect } from 'next/navigation';export const AddTodo = async (searchParams: SearchParamsType, formData: FormData) => {
const newTodo = formData.get('newTodo');
const supabase = createClient();
const { error } = await supabase
.from('todos')
.insert([{ todo: newTodo }])
.select();
const params = new URLSearchParams();
if (searchParams.page) params.append('page', searchParams.page);
if (error) {
return redirect('/error');
}
return redirect(`/?${params.toString()}`);
};
### Explanation
- **State Management**: The `inputValue` state is used to manage the value of the input field.
- **Form Submission**: The `handleSubmit` function handles the form submission, calls the server action, and then resets the input field by setting `inputValue` to an empty string.
- **Event Handling**: The `onChange` event updates the `inputValue` state as the user types in the input field.
By following these steps, you can ensure that the input field is cleared after the server action is triggered.
### References
- **Next.js Documentation on Server Actions and Mutations** (<https://nextjs.org/docs/app/building-your-application/data-fetching/server-actions-and-mutations#event-handlers>)
- **React Documentation on Forms** (<https://reactjs.org/docs/forms.html>)
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
----------------------@blissful wedge
i cant access env inside of client component ?
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
In Next.js, environment variables are not accessible inside client components by default for security reasons. However, you can expose specific environment variables to the client by prefixing them with NEXT_PUBLIC_.
Define Environment Variables:
Ensure your environment variables are prefixed with NEXT_PUBLIC_ in your .env.local file.
NEXT_PUBLIC_API_URL="<https://api.example.com">
NEXT_PUBLIC_API_KEY="your-api-key"
Access Environment Variables in Client Components:
You can then access these variables in your client components using process.env.
'use client';
export default function MyComponent() {{
const apiUrl = process.env.NEXT_PUBLIC_API_URL;
const apiKey = process.env.NEXT_PUBLIC_API_KEY;
return (
<div>
<p>API URL: {{apiUrl}}</p>
<p>API Key: {{apiKey}}</p>
</div>
);
}}
NEXT_PUBLIC_ are embedded into the build, so changes to these variables require a rebuild of your application.
fallen cloak
@blissful wedge
how to add ka ng NEXT_PUBLIC prefix to expose env to client component
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
To expose environment variables to client components in a Next.js application, you need to add the NEXT_PUBLIC_ prefix to the environment variable names. Here’s a step-by-step guide on how to do this:
Define Environment Variables:
Add your environment variables to the .env.local file with the NEXT_PUBLIC_ prefix.
NEXT_PUBLIC_API_URL="<https://api.example.com">
NEXT_PUBLIC_API_KEY="your-api-key"
Access Environment Variables in Client Components:
You can then access these variables in your client components using process.env.
'use client';
export default function MyComponent() {
const apiUrl = process.env.NEXT_PUBLIC_API_URL;
const apiKey = process.env.NEXT_PUBLIC_API_KEY;
return (
<div>
<p>API URL: {apiUrl}</p>
<p>API Key: {apiKey}</p>
</div>
);
}
NEXT_PUBLIC_ are embedded into the build, so changes to these variables require a rebuild of your application.
fallen cloak
"use client";
import Intercom from "@intercom/messenger-js-sdk";
import { useEffect } from "react";
type IntercomProviderProps = {
user_id?: string;
user_email?: string;
};
const IntercomProvider = ({ user_id, user_email }: IntercomProviderProps) => {
// reload env
const INTERCOM_APP_ID = process.env.NEXT_PUBLIC_INTERCOM_APP_ID;
useEffect(() => {
if (window && INTERCOM_APP_ID) {
// initialized the intercom by calling the sdk and add to global window
Intercom({
app_id: INTERCOM_APP_ID,
});
}
}, [INTERCOM_APP_ID]);
useEffect(() => {
if (window && window.Intercom) {
// intercom will return an error if the user_id and user_email is an empty string
if (user_id && user_email) {
window.Intercom("update", { user_id: user_id, email: user_email });
}
}
}, [user_id, user_email]);
// in next.js the component will return ether null or jsx
return null;
};
export default IntercomProvider;
@blissful wedge do you think its ok to add INTERCOM_APP_ID as dep in useEffect even thou its just a env variable ?
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
Yes, it is generally okay to add INTERCOM_APP_ID as a dependency in the useEffect hook, even though it is just an environment variable. This ensures that the effect will re-run if the value of INTERCOM_APP_ID changes, which can be useful during development or if the environment variable is dynamically set.
Here’s your code with the INTERCOM_APP_ID included as a dependency in the useEffect hook:
"use client";
import Intercom from "@intercom/messenger-js-sdk";
import { useEffect } from "react";
type IntercomProviderProps = {
user_id?: string;
user_email?: string;
};
const IntercomProvider = ({ user_id, user_email }: IntercomProviderProps) => {
// reload env
const INTERCOM_APP_ID = process.env.NEXT_PUBLIC_INTERCOM_APP_ID;
useEffect(() => {
if (window && INTERCOM_APP_ID) {
// initialized the intercom by calling the sdk and add to global window
Intercom({
app_id: INTERCOM_APP_ID,
});
}
}, [INTERCOM_APP_ID]);
useEffect(() => {
if (window && window.Intercom) {
// intercom will return an error if the user_id and user_email is an empty string
if (user_id && user_email) {
window.Intercom("update", { user_id: user_id, email: user_email });
}
}
}, [user_id, user_email]);
// in next.js the component will return ether null or jsx
return null;
};
export default IntercomProvider;
INTERCOM_APP_ID as a dependency ensures that the useEffect hook will re-run if the value of INTERCOM_APP_ID changes. This is particularly useful during development or if the environment variable is dynamically set.useEffect hook re-runs the effect whenever any of the dependencies change. This helps in keeping the component's behavior consistent with the current state of its dependencies.
fallen cloak
@blissful wedge
how to use next/dynamic in next.js app inside of _app.tsx to make the loading global ?
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
To use next/dynamic in your Next.js app inside of _app.tsx to make the loading global, you can follow these steps:
Create a Custom Loading Component:
First, create a custom loading component that will be displayed while your dynamic components are loading.
// components/Loading.tsx
const Loading = () => {
return <p>Loading...</p>;
};
export default Loading;
Use next/dynamic in _app.tsx:
Import next/dynamic and your custom loading component in _app.tsx. Then, dynamically import your main application component and use the custom loading component.
// pages/_app.tsx
import { AppProps } from 'next/app';
import dynamic from 'next/dynamic';
import Loading from '../components/Loading';
const DynamicApp = dynamic(() => import('../components/App'), {
loading: () => <Loading />,
});
function MyApp({ Component, pageProps }: AppProps) {
return (
<DynamicApp>
<Component {...pageProps} />
</DynamicApp>
);
}
export default MyApp;
Create the Main Application Component:
Create the main application component that will be dynamically imported.
// components/App.tsx
const App = ({ children }) => {
return <>{children}</>;
};
export default App;
Loading component will be displayed while the main application component is being dynamically loaded._app.tsx: The dynamic function from next/dynamic is used to dynamically import the main application component (App). The loading option specifies the custom loading component to be displayed during the loading process.App component is a simple wrapper that renders its children. This component is dynamically imported in _app.tsx._app.tsx.
fallen cloak
@blissful wedge
if i disable ssr using next dynamic in next app
const DynamicApp = dynamic(() => import("./lazyApp"), {
loading: () => null,
ssr: false,
});
can i still use getServerSideProps ?
blissful wedgeBOT
Let me check the knowledge base for you. One moment! :books:
If you disable server-side rendering (SSR) using next/dynamic with the ssr: false option, you cannot use getServerSideProps in the dynamically imported component. This is because getServerSideProps is specifically designed to run on the server side, and disabling SSR means that the component will only be rendered on the client side.
ssr: false in next/dynamic, the component is only rendered on the client side. This means that any server-side logic, including getServerSideProps, will not be executed.Here’s an example of how you might disable SSR for a component using next/dynamic:
import dynamic from 'next/dynamic';
const DynamicApp = dynamic(() => import('./lazyApp'), {
loading: () => null,
ssr: false,
});
export default function MyApp({ Component, pageProps }) {
return (
<DynamicApp>
<Component {...pageProps} />
</DynamicApp>
);
}
If you need to use getServerSideProps, you should not disable SSR for the component. Instead, you can use getServerSideProps in the page component where SSR is required.
getServerSideProps (https://nextjs.org/docs/pages/building-your-application/data-fetching/get-server-side-props)getServerSideProps correctly and understand the implications of disabling SSR with next/dynamic.