Nuxt•2w ago

Why does my form submit for every keystroke?

message.txt

24 Replies

Hi @o.m. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the information provided in the knowledge sources, it seems your form might be submitting for every keystroke due to the default behavior of form validation in Nuxt UI. Let me explain: According to the Nuxt UI documentation (https://ui.nuxt.com/components/form#input-events), the Form component automatically triggers validation upon various events, including the input event. This means that validation (and potentially submission) could occur as the user is typing. However, there's a built-in mechanism to prevent this:

Note that the input event is not triggered until after the initial blur event. This is to prevent the form from being validated as the user is typing.

If you're still experiencing form submission on every keystroke, you might want to check if you've accidentally set the eager-validation (https://ui.nuxt.com/components/form-group#eager-validation) prop on your FormGroup component to true. This prop overrides the default behavior and causes validation to occur immediately on input. To fix this issue, you can: 1. Ensure you're not using the eager-validation prop unless absolutely necessary. 2. If you need more control over when validation occurs, you can use the validate-on prop on the Form component to specify exactly which events should trigger validation. If you're not using Nuxt UI's Form component and still experiencing this issue, the knowledge sources don't provide enough information to diagnose the problem. In that case, you might need to review your form submission logic to ensure it's not triggering on every input event. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@674984670156423171> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

o.mOP•2w ago

I need help guys, why does my form submits for every keystroke? AI doesnt seem to help me.

o.mOP•2w ago

I typed some word and now ther are multiple api calls Is it because of the v-if logic?

Ragura•2w ago

That's weird behavior. Could you put this code in a minimal reproduction (e.g. on Stackblitz) so we can take a look at the issue actually occuring? At first glance I don't see anything that could cause every keystroke to call the submit code. Often times something like this happens when you use a computed or watcher together with a ref that's being updated by the v-model of the input field.

o.mOP•2w ago

Where is that

o.mOP•2w ago

I dont even use computed in my pages or composables Should I just separate the page for /register and /update profile? What's with onUpdate. I dont use it on the /register page doing this might not be even a solution lol (just evading the issue)

mohammad seliya•2w ago

@o.m Instead of @submit.prevent="handleSubmit()", can you try @submit.prevent="handleSubmit"

o.mOP•2w ago

Yes I tried that The one on the screen record is using that code I have not tried it on prod mode

o.mOP•2w ago

What im confused is that it should be calling handleUpdate instead of handleSubmit because the lattter is post api call

o.mOP•2w ago

Anyone see this ? https://github.com/nuxt/nuxt/issues/25426

GitHub

When using useFetch form is submitted for each key press · Issue #2...

Environment Operating System: Windows_NT Node Version: v21.6.0 Nuxt Version: ^3.2.3 Nitro Version: ^2.2.3 Package Manager: unknown Builder: webpack User Config: - Runtime Modules: - Build Modules: ...

o.mOP•2w ago

@kapa.ai can I use $fetch in composable?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the knowledge sources provided, using $fetch directly in a composable is generally not recommended and can lead to issues. Here's why: 1. Composable Usage: According to the Nuxt documentation (https://nuxt.com/docs/getting-started/data-fetching#lazy), useFetch and useAsyncData (which wrap $fetch) are meant to be invoked in the setup method, lifecycle hooks, or at the top level of a function. Using $fetch alone in a composable doesn't provide the same benefits. 2. Potential Issues: As highlighted in a Stack Overflow post (https://stackoverflow.com/questions/78680613), wrapping useFetch (which internally uses $fetch) within a function in a composable can lead to bugs affecting the app's performance. This is because composables should generally be called only in setup functions, plugins, or route middleware. 3. Recommended Approach: Instead of using $fetch directly in a composable, it's better to use useFetch or useAsyncData in combination with $fetch. These composables handle important aspects like SSR, payload transfer, and preventing double data fetching. For example:

   export function useMyComposable() {
     const { data, error } = useAsyncData(() => $fetch('/api/endpoint'))
     // or
     const { data, error } = useFetch('/api/endpoint')
     
     // Rest of your composable logic
   }

   export function useMyComposable() {
     const { data, error } = useAsyncData(() => $fetch('/api/endpoint'))
     // or
     const { data, error } = useFetch('/api/endpoint')
     
     // Rest of your composable logic
   }

4. Client-side Usage: If you need to use $fetch for client-side interactions (like event-based calls), it's better to do so within methods that are executed only on the client-side, rather than in the composable itself. The Nuxt documentation (https://nuxt.com/docs/api/utils/dollarfetch) provides an example of this:

   <script setup>
   function contactForm() {
     $fetch('/api/contact', {
       method: 'POST',
       body: { hello: 'world' }
     })
   }
   </script>

   <script setup>
   function contactForm() {
     $fetch('/api/contact', {
       method: 'POST',
       body: { hello: 'world' }
     })
   }
   </script>

In summary, while you can technically use $fetch in a composable, it's generally better to use useFetch or useAsyncData to ensure proper handling of server-side rendering, state management, and to avoid potential issues with data fetching in your Nuxt application. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@674984670156423171> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

o.mOP•2w ago

@kapa.ai how do I know which is client-side and server side?

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To determine whether your code is running on the client-side or server-side in Nuxt, you have several options. Here's how you can distinguish between the two: 1. Using import.meta: Nuxt provides runtime properties through import.meta that you can use to check the execution environment. According to the Nuxt documentation (https://nuxt.com/docs/api/advanced/import-meta#runtime-app-properties), you can use:

   if (import.meta.client) {
     // This code runs only on the client side
   }

   if (import.meta.server) {
     // This code runs only on the server side
   }

   if (import.meta.client) {
     // This code runs only on the client side
   }

   if (import.meta.server) {
     // This code runs only on the server side
   }

These boolean values are statically injected and can be used for tree-shaking your runtime code. 2. Using process.client and process.server: While not mentioned in the provided knowledge sources, it's worth noting that Nuxt also provides process.client and process.server for the same purpose. However, import.meta is the more modern approach. 3. Checking for hydration: You can use nuxtApp.isHydrating to check if the Nuxt app is currently hydrating on the client side. This is useful for determining if the app is in its initial client-side render after server-side rendering. Here's an example from the Nuxt documentation (https://nuxt.com/docs/api/composables/use-nuxt-app#ishydrating):

   const nuxtApp = useNuxtApp()
   if (import.meta.client && !nuxtApp.isHydrating) {
     // This code runs on the client side, but not during hydration
   }

   const nuxtApp = useNuxtApp()
   if (import.meta.client && !nuxtApp.isHydrating) {
     // This code runs on the client side, but not during hydration
   }

4. Component-level control: For components, you can use the .client or .server suffix in the filename to explicitly control where they are rendered. As mentioned in the Nuxt documentation (https://nuxt.com/docs/guide/directory-structure/components#client-components): - Comments.client.vue will only be rendered on the client side. - Comments.server.vue will be rendered on the server side, then replaced by the client version once mounted in the browser. 5. Plugin-level control: For plugins, you can specify whether they should run on the client, server, or both. The Nuxt configuration documentation (https://nuxt.com/docs/api/nuxt-config#plugins-1) shows how to do this:

   plugins: [
     '~/plugins/foo.client.js', // only in client side
     '~/plugins/bar.server.js', // only in server side
     '~/plugins/baz.js', // both client & server
     { src: '~/plugins/client-only.js', mode: 'client' }, // only on client side
     { src: '~/plugins/server-only.js', mode: 'server' } // only on server side
   ]

   plugins: [
     '~/plugins/foo.client.js', // only in client side
     '~/plugins/bar.server.js', // only in server side
     '~/plugins/baz.js', // both client & server
     { src: '~/plugins/client-only.js', mode: 'client' }, // only on client side
     { src: '~/plugins/server-only.js', mode: 'server' } // only on server side
   ]

Remember that in universal rendering mode, some code may execute on both the server and the client during hydration. The Nuxt documentation on universal rendering (https://nuxt.com/docs/guide/concepts/rendering#universal-rendering) provides more details on this behavior. By using these methods, you can effectively determine and control which parts of your code run on the client-side and which run on the server-side in your Nuxt application. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@674984670156423171> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

mohammad seliya•2w ago

try to follow below format and see if it works or not const { data, execute, error } = useFetch('/api/register', { method: 'POST', immediate: false, }); const handleSubmit = async () => { await execute({ body: form.value }); }

o.mOP•2w ago

I am using composable btw.. const { data } = await authRegister(form.value);

composables/auth.ts
export const authRegister = async (form: Form): Promise<any> => {
    // We $fetch here to prevent api call every key stroke
    return await $fetch("/api/auth/register", {
        method: "POST",
        body: form,
    });
};

composables/auth.ts
export const authRegister = async (form: Form): Promise<any> => {
    // We $fetch here to prevent api call every key stroke
    return await $fetch("/api/auth/register", {
        method: "POST",
        body: form,
    });
};

@kapa.ai why is it undefined? why I try to console.log(data)

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the information provided in the knowledge sources and the context of your question, there are a few reasons why console.log(data) might be showing undefined. Let me explain the most likely causes: 1. Reactive Reference: In Nuxt 3, when using useFetch or useAsyncData, the returned data is a reactive reference. As mentioned in a Stack Overflow answer (https://stackoverflow.com/questions/77946556), you need to access the value using .value. Try logging it like this:

   console.log(data.value)

   console.log(data.value)

2. Timing of the Log: If you're logging the data immediately after calling useFetch or useAsyncData, it might be undefined because the data hasn't been fetched yet. These composables are asynchronous, and the data might not be immediately available. 3. Server-Side Rendering (SSR): In a Nuxt application, some code runs on both the server and the client. As explained in the Nuxt documentation (https://nuxt.com/docs/getting-started/data-fetching#the-need-for-usefetch-and-useasyncdata), if you're using console.log in a component's setup function, it will run on both the server and the client. On the server, the data might not be available yet when the log runs. 4. Default Values: According to the Nuxt upgrade guide (https://nuxt.com/docs/getting-started/upgrade#default-data-and-error-values-in-useasyncdata-and-usefetch), in recent versions of Nuxt, data and error objects returned from useAsyncData will default to undefined instead of null. To troubleshoot this issue: 1. Make sure you're accessing the value correctly: console.log(data.value) 2. Use the onMounted lifecycle hook to ensure you're logging on the client-side after hydration:

   onMounted(() => {
     console.log(data.value)
   })

   onMounted(() => {
     console.log(data.value)
   })

3. If you need to access the data on both server and client, you can use the useNuxtApp().payload as mentioned in the Nuxt upgrade guide (https://nuxt.com/docs/getting-started/upgrade#migration-steps-9):

   console.log(useNuxtApp().payload)

   console.log(useNuxtApp().payload)

4. If you're using useFetch or useAsyncData, consider using their onResponse option to log the data as soon as it's available:

   const { data } = await useFetch('/api/endpoint', {
     onResponse({ response }) {
       console.log(response._data)
     }
   })

   const { data } = await useFetch('/api/endpoint', {
     onResponse({ response }) {
       console.log(response._data)
     }
   })

Remember, when working with asynchronous data in Nuxt, it's important to handle cases where the data might not be immediately available, especially when dealing with server-side rendering and client-side hydration. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@674984670156423171> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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Why does my form submit for every keystroke?