fix(robot): message processing of the robot is optimized. #3491
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WalkthroughThe Changes
Sequence Diagram(s)sequenceDiagram
participant SSEStream as SSE Stream (Event Source)
participant handleSSEStream as handleSSEStream
participant printMessage as printMessage Helper
participant Handler as Handler
SSEStream->>handleSSEStream: Receive SSE event (node_started/node_finished/agent_log)
handleSSEStream->>printMessage: Format message for event
printMessage->>Handler: onData({ role: "assistant", content: ... })
Poem
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Actionable comments posted: 2
🧹 Nitpick comments (1)
examples/sites/src/views/components-doc/composition/utils.ts (1)
44-44: Consider function-scoped messageIndex for better encapsulation.The
messageIndexvariable is scoped to the entire function but only used withinprintMessage. This could lead to issues with concurrent streams or multiple function calls sharing the same counter.Consider encapsulating the counter within the
printMessagefunction or resetting it appropriately:- let messageIndex = 0 - function printMessage(data, str: string, endln = false) { + function printMessage(data, str: string, endln = false) { + static messageIndex = 0 handler.onData({ id: '', created: data.created_at, choices: [ { index: messageIndex++,Or reset the counter at the beginning of each stream processing.
| function printMessage(data, str: string, endln = false) { | ||
| handler.onData({ | ||
| id: '', | ||
| created: data.created_at, | ||
| choices: [ | ||
| { | ||
| index: messageIndex++, | ||
| delta: { | ||
| role: 'assistant', | ||
| content: str + (endln ? '\n\n' : '') | ||
| }, | ||
| finish_reason: null | ||
| } | ||
| ], | ||
| object: '', | ||
| model: '' | ||
| }) | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve the printMessage helper function implementation.
The helper function has several areas for improvement:
- Type safety: The
dataparameter lacks type annotation - Response structure: Empty string values for
id,object, andmodelfields may cause issues with downstream consumers - Potential memory growth: The incrementing
messageIndexcould grow indefinitely in long-running streams
Apply these improvements:
- function printMessage(data, str: string, endln = false) {
+ function printMessage(data: any, str: string, endln = false) {
handler.onData({
- id: '',
+ id: data.id || crypto.randomUUID(),
created: data.created_at,
choices: [
{
index: messageIndex++,
delta: {
role: 'assistant',
content: str + (endln ? '\n\n' : '')
},
finish_reason: null
}
],
- object: '',
- model: ''
+ object: 'chat.completion.chunk',
+ model: data.model || 'unknown'
})
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| function printMessage(data, str: string, endln = false) { | |
| handler.onData({ | |
| id: '', | |
| created: data.created_at, | |
| choices: [ | |
| { | |
| index: messageIndex++, | |
| delta: { | |
| role: 'assistant', | |
| content: str + (endln ? '\n\n' : '') | |
| }, | |
| finish_reason: null | |
| } | |
| ], | |
| object: '', | |
| model: '' | |
| }) | |
| } | |
| function printMessage(data: any, str: string, endln = false) { | |
| handler.onData({ | |
| id: data.id || crypto.randomUUID(), | |
| created: data.created_at, | |
| choices: [ | |
| { | |
| index: messageIndex++, | |
| delta: { | |
| role: 'assistant', | |
| content: str + (endln ? '\n\n' : '') | |
| }, | |
| finish_reason: null | |
| } | |
| ], | |
| object: 'chat.completion.chunk', | |
| model: data.model || 'unknown' | |
| }) | |
| } |
🤖 Prompt for AI Agents
In examples/sites/src/views/components-doc/composition/utils.ts around lines 45
to 62, improve the printMessage function by adding a proper type annotation for
the data parameter to ensure type safety, replace empty string values for id,
object, and model with meaningful or default values to avoid issues downstream,
and implement a mechanism to reset or limit the growth of the messageIndex
variable to prevent unbounded memory growth during long-running streams.
| if (data?.event === 'node_started') { | ||
| printMessage(data, `${data.data.title} 节点运行...`, true) | ||
| } | ||
|
|
||
| if (data?.event === 'message' && data?.answer) { | ||
| handler.onData({ | ||
| id: data.id, | ||
| created: data.created_at, | ||
| choices: [ | ||
| { | ||
| index: messageIndex++, | ||
| delta: { | ||
| role: 'assistant', | ||
| content: data.answer | ||
| }, | ||
| finish_reason: null | ||
| } | ||
| ], | ||
| object: '', | ||
| model: '' | ||
| }) | ||
| message.value.slice(-1)[0].loading = false | ||
| if (data?.event === 'node_finished') { | ||
| printMessage( | ||
| data, | ||
| `${data.data.title} 节点结束\n\n` + | ||
| (data.data.node_type === 'answer' ? `${data.data.outputs.answer}` : '') | ||
| ) | ||
| } | ||
| if (data?.event === 'message_end') { | ||
| handler.onData({ | ||
| id: data.id, | ||
| created: data.created_at, | ||
| choices: [ | ||
| { | ||
| index: messageIndex++, | ||
| delta: { | ||
| role: 'assistant', | ||
| content: '' | ||
| }, | ||
| finish_reason: 'stop' | ||
| } | ||
| ], | ||
| object: '', | ||
| model: '' | ||
| }) | ||
| message.value.slice(-1)[0].loading = false | ||
| if (data?.event === 'agent_log' && data.data.status === 'success' && data.data.label.startsWith('CALL')) { | ||
| printMessage(data, `--${data.data.label}(${JSON.stringify(data.data.data.output.tool_call_input)})`, true) | ||
| } |
There was a problem hiding this comment.
Verify the new event handling logic and add error protection.
The new event handling logic introduces several potential issues:
- Missing null checks: Direct property access without validation could cause runtime errors
- JSON.stringify safety: Could fail with circular references or non-serializable objects
- Hardcoded Chinese text: May cause encoding issues in some environments
Add proper error handling and validation:
- if (data?.event === 'node_started') {
- printMessage(data, `${data.data.title} 节点运行...`, true)
+ if (data?.event === 'node_started' && data.data?.title) {
+ printMessage(data, `${data.data.title} 节点运行...`, true)
}
- if (data?.event === 'node_finished') {
+ if (data?.event === 'node_finished' && data.data?.title) {
printMessage(
data,
`${data.data.title} 节点结束\n\n` +
- (data.data.node_type === 'answer' ? `${data.data.outputs.answer}` : '')
+ (data.data.node_type === 'answer' && data.data.outputs?.answer ? `${data.data.outputs.answer}` : '')
)
}
- if (data?.event === 'agent_log' && data.data.status === 'success' && data.data.label.startsWith('CALL')) {
- printMessage(data, `--${data.data.label}(${JSON.stringify(data.data.data.output.tool_call_input)})`, true)
+ if (data?.event === 'agent_log' && data.data?.status === 'success' && data.data?.label?.startsWith('CALL')) {
+ try {
+ const toolCallInput = JSON.stringify(data.data.data?.output?.tool_call_input || {})
+ printMessage(data, `--${data.data.label}(${toolCallInput})`, true)
+ } catch (error) {
+ console.warn('Failed to stringify tool call input:', error)
+ printMessage(data, `--${data.data.label}(${String(data.data.data?.output?.tool_call_input || '')})`, true)
+ }
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| if (data?.event === 'node_started') { | |
| printMessage(data, `${data.data.title} 节点运行...`, true) | |
| } | |
| if (data?.event === 'message' && data?.answer) { | |
| handler.onData({ | |
| id: data.id, | |
| created: data.created_at, | |
| choices: [ | |
| { | |
| index: messageIndex++, | |
| delta: { | |
| role: 'assistant', | |
| content: data.answer | |
| }, | |
| finish_reason: null | |
| } | |
| ], | |
| object: '', | |
| model: '' | |
| }) | |
| message.value.slice(-1)[0].loading = false | |
| if (data?.event === 'node_finished') { | |
| printMessage( | |
| data, | |
| `${data.data.title} 节点结束\n\n` + | |
| (data.data.node_type === 'answer' ? `${data.data.outputs.answer}` : '') | |
| ) | |
| } | |
| if (data?.event === 'message_end') { | |
| handler.onData({ | |
| id: data.id, | |
| created: data.created_at, | |
| choices: [ | |
| { | |
| index: messageIndex++, | |
| delta: { | |
| role: 'assistant', | |
| content: '' | |
| }, | |
| finish_reason: 'stop' | |
| } | |
| ], | |
| object: '', | |
| model: '' | |
| }) | |
| message.value.slice(-1)[0].loading = false | |
| if (data?.event === 'agent_log' && data.data.status === 'success' && data.data.label.startsWith('CALL')) { | |
| printMessage(data, `--${data.data.label}(${JSON.stringify(data.data.data.output.tool_call_input)})`, true) | |
| } | |
| if (data?.event === 'node_started' && data.data?.title) { | |
| printMessage(data, `${data.data.title} 节点运行...`, true) | |
| } | |
| if (data?.event === 'node_finished' && data.data?.title) { | |
| printMessage( | |
| data, | |
| `${data.data.title} 节点结束\n\n` + | |
| (data.data.node_type === 'answer' && data.data.outputs?.answer | |
| ? `${data.data.outputs.answer}` | |
| : '') | |
| ) | |
| } | |
| if ( | |
| data?.event === 'agent_log' && | |
| data.data?.status === 'success' && | |
| data.data?.label?.startsWith('CALL') | |
| ) { | |
| try { | |
| const toolCallInput = JSON.stringify( | |
| data.data.data?.output?.tool_call_input || {} | |
| ) | |
| printMessage(data, `--${data.data.label}(${toolCallInput})`, true) | |
| } catch (error) { | |
| console.warn('Failed to stringify tool call input:', error) | |
| printMessage( | |
| data, | |
| `--${data.data.label}(${String( | |
| data.data.data?.output?.tool_call_input || '' | |
| )})`, | |
| true | |
| ) | |
| } | |
| } |
🤖 Prompt for AI Agents
In examples/sites/src/views/components-doc/composition/utils.ts around lines 95
to 107, the event handling code lacks null checks for nested properties, uses
JSON.stringify without error handling which may fail on circular or
non-serializable data, and contains hardcoded Chinese text that could cause
encoding issues. To fix this, add conditional checks to ensure all nested
properties exist before accessing them, wrap JSON.stringify calls in try-catch
blocks to handle serialization errors gracefully, and replace hardcoded Chinese
strings with variables or constants that can be localized or encoded properly.
PR
优化robot的消息处理
PR Checklist
Please check if your PR fulfills the following requirements:
PR Type
What kind of change does this PR introduce?
What is the current behavior?
Issue Number: N/A
What is the new behavior?
Does this PR introduce a breaking change?
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Summary by CodeRabbit
New Features
Refactor