12 Replies
Hi @florent. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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Based on the information provided in the extracts, it's not clear why
useApiUrl
is returning undefined
. However, it's important to note that useApiUrl
is a hook provided by Refine to get the API URL of the data provider. It should return the API URL that you have set in your dataProvider
in the Refine
component.
In your case, you have set the dataProvider
as { default: dataProvider(API_URL!) }
. So, useApiUrl('default')
should return the API_URL
value.
If it's returning undefined
, it could be due to several reasons:
1. The API_URL
is not correctly set or not available at the time of the execution.
2. There might be an issue with the dataProvider
configuration.
3. The useApiUrl
hook is not used inside a component that is a child of the Refine
component.
Unfortunately, without more context or code, it's hard to pinpoint the exact issue. I would recommend checking the points mentioned above. If the issue persists, you might want to refer to the official Refine documentation (https://refine.dev/docs) or seek help from the Refine community.
----------------------
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yappiest-sapphire•8mo ago
@kapa.ai So does this mean that passing useApiUrl from _app.tsx to another index.tsx is not allowed?
@kapa.ai So does this mean that passing useApiUrl from _app.tsx to another index.tsx is not allowed?
Let me check the knowledge base for you. One moment! :books:
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Based on the information provided in the extracts, the
useApiUrl
hook should be used inside a component that is a child of the Refine
component. This is because hooks in React share the context of the component they are used in, and useApiUrl
relies on the context provided by the Refine
component.
If you're trying to use useApiUrl
in index.tsx
which is not a child of the Refine
component in _app.tsx
, it might not work as expected.
Ensure that the component where you're using useApiUrl
is rendered inside the Refine
component. If index.tsx
is a page that is rendered outside the Refine
component, useApiUrl
will not be able to access the context and hence return undefined
.
If you need to pass the API URL to a component outside of the Refine
context, consider passing it directly as a prop or using another state management solution.
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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yappiest-sapphire•8mo ago
@kapa.ai how to props surving _app.tsx to another index.tsx
Let me check the knowledge base for you. One moment! :books:
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In Next.js, the
_app.tsx
file is used to initialize pages. You can't directly pass props from _app.tsx
to another page like index.tsx
. However, you can use global state management libraries like Redux or Context API to share state across different pages.
Here's a basic example of how you can use Context API to share state:
First, create a context:
Then, in your _app.tsx
, provide the context:
Now, in your index.tsx
, you can consume the context:
In this example, apiUrl
in IndexPage
will have the value of API_URL
from _app.tsx
.
Please note that this is a simplified example. Depending on your application structure and requirements, you might need to adjust it. For more complex state management, consider using libraries like Redux or Zustand.
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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yappiest-sapphire•8mo ago
@kapa.ai const API_URL = process.env.CAFE24_API_URL
Can't I use process.env in _app.tsx?
Let me check the knowledge base for you. One moment! :books:
----------------------
Yes, you can use
process.env
in _app.tsx
to access environment variables. However, you need to ensure that the environment variable CAFE24_API_URL
is correctly set in your environment.
In Next.js, you can add environment variables in a .env.local
file in the root of your project. These variables will then be loaded into the Node.js process. Here's an example of how you can set CAFE24_API_URL
:
After setting the environment variable, you need to restart your development server to make sure the new environment values take effect.
Then, in your _app.tsx
, you can access the environment variable like this:
Please note that in order to expose a variable to the browser, you have to prefix the variable with NEXT_PUBLIC_
. Any other variables are only available in the Node.js environment, meaning they won't be exposed to the browser.
For more information, you can refer to the Next.js documentation on environment variables (https://nextjs.org/docs/basic-features/environment-variables).
----------------------
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fair-rose•8mo ago
Hello @florent, what is your data provider ? If you are using
vite
, env variables should be used like this https://vitejs.dev/guide/env-and-mode