DTK0006: No Dump Match

Package: @vitejs/devtools-rpc

Message

No dump match for "{name}" with args: {args}

Cause

This error is thrown by createClientFromDump() when a function exists in the dump store, but no pre-computed result matches the given arguments. The dump client uses argument hashing to look up results, so the call arguments must exactly match one of the dump.inputs entries. This error only occurs when there is also no fallback configured for the function.

Example

import { defineRpcFunction } from '@vitejs/devtools-kit'
import { createClientFromDump, dumpFunctions } from '@vitejs/devtools-rpc'

const greet = defineRpcFunction({
  name: 'my-plugin:greet',
  type: 'query',
  handler: (name: string) => `Hello, ${name}!`,
  dump: {
    inputs: [['Alice'], ['Bob']], // only these two inputs are pre-computed
  },
})

const store = await dumpFunctions([greet])
const client = createClientFromDump(store)

// Works fine
await client['my-plugin:greet']('Alice') // 'Hello, Alice!'

// Throws DTK0006 because 'Charlie' was not in dump.inputs
await client['my-plugin:greet']('Charlie')

Fix

Add the missing input combination to the dump.inputs array, or configure a fallback value for unmatched calls:

// Option 1: Add the missing input
const greet = defineRpcFunction({
  name: 'my-plugin:greet',
  type: 'query',
  handler: (name: string) => `Hello, ${name}!`,
  dump: {
    inputs: [['Alice'], ['Bob'], ['Charlie']],
  },
})

// Option 2: Provide a fallback for unmatched args
const greet = defineRpcFunction({
  name: 'my-plugin:greet',
  type: 'query',
  handler: (name: string) => `Hello, ${name}!`,
  dump: {
    inputs: [['Alice'], ['Bob']],
    fallback: 'Hello, stranger!',
  },
})

You can also use the onMiss callback in createClientFromDump() to debug which calls are missing:

const client = createClientFromDump(store, {
  onMiss: (name, args) => {
    console.warn(`Dump miss: ${name}`, args)
  },
})

Source

packages/rpc/src/dumps.ts