How to build a http.ts use fetch to call api in nextjs14 and handle 401
#How to build a http.ts use fetch to call api in nextjs14 and handle 401
floral saffron
mighty havenBOT
Hi @floral saffron. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
In Next.js, you can use the native fetch API to make HTTP requests. Here's a basic example of how you can structure your http.ts file to make a fetch request and handle a 401 status code:
export async function fetchData(url: string) {
const response = await fetch(url);
if (response.status === 401) {
// Handle 401 Unauthorized error here
console.error('Unauthorized');
return;
}
if (!response.ok) {
// Handle general error here
console.error('HTTP error', response.status);
return;
}
const data = await response.json();
return data;
}
In this example, fetchData is an async function that takes a URL as a parameter. It uses fetch to make a request to the provided URL. If the response status is 401, it logs an error message and returns. If the response status is anything other than 200, it logs a general error message and returns. If the response status is 200, it parses the response body as JSON and returns the resulting data.
Remember to replace the console.error calls with your own error handling logic.
Also, note that Next.js extends the native Web fetch() API to allow each request on the server to set its own persistent caching semantics. You can use the cache option to indicate how a fetch request will interact with the HTTP cache (source (https://nextjs.org/docs/app/api-reference/functions/fetch)).
For handling errors in a more comprehensive way, you can use Next.js's built-in error handling capabilities. You can handle runtime errors by automatically wrapping route segments and their nested children in a React Error Boundary (source (https://nextjs.org/docs/app/api-reference/file-conventions/error#learn-more-about-error-handling)).
Please note that the provided code is a basic example and might need to be adjusted based on your specific use case and error handling requirements.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
floral saffron
@mighty haven if 401 handle popup modal end session or redirect
mighty havenBOT
Let me check the knowledge base for you. One moment! :books:
If you want to handle a 401 status by showing a modal and ending the session or redirecting, you can modify the fetchData function like this:
import { useRouter } from 'next/router';
export async function fetchData(url: string) {
const router = useRouter();
const response = await fetch(url);
if (response.status === 401) {
// Handle 401 Unauthorized error here
// Show a modal, end the session, or redirect
// For example, to redirect to a login page:
router.push('/login');
return;
}
if (!response.ok) {
// Handle general error here
console.error('HTTP error', response.status);
return;
}
const data = await response.json();
return data;
}
In this example, if the response status is 401, the user is redirected to a login page. You can replace '/login' with the path to your own login page or any other page you want to redirect to.
Please note that this is a basic example and might need to be adjusted based on your specific use case and error handling requirements.
For more advanced error handling, you can use Next.js's built-in error handling capabilities. You can handle runtime errors by automatically wrapping route segments and their nested children in a React Error Boundary (source (https://nextjs.org/docs/app/api-reference/file-conventions/error#learn-more-about-error-handling)).
For handling server errors, Next.js provides a static 500 page by default. You can customize this page by creating a pages/500.js file (source (https://nextjs.org/docs/pages/building-your-application/configuring/error-handling)).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
floral saffron
@mighty haven useRouter can not use in seẻver component
mighty havenBOT
Let me check the knowledge base for you. One moment! :books:
Yes, you're correct. The useRouter hook from next/navigation is only supported in Client Components and cannot be used in Server Components. This is mentioned in the Next.js documentation here (https://nextjs.org/docs/app/building-your-application/upgrading/app-router-migration#step-5-migrating-routing-hooks).
If you need to fetch data in a server component, you can call a Route Handler from the client. Route Handlers execute on the server and return the data to the client. This is useful when you don't want to expose sensitive information to the client, such as API tokens. You can fetch the data directly inside the Server Component. More details can be found here (https://nextjs.org/docs/app/building-your-application/data-fetching/fetching-caching-and-revalidating#fetching-data-on-the-client-with-route-handlers).
Here's an example of how to use useRouter in a client component:
'use client'
import { useRouter } from 'next/navigation'
export default function Page() {
const router = useRouter()
return (
<button type="button" onClick={() => router.push('/dashboard')}>
Dashboard
</button>
)
}