fix: make stock trading stub explicit with demo data#96
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…t zeros CheckPrice() previously returned 0,0,error when prices weren't seeded, giving users no data and no indication the example was a stub. Now it seeds a realistic AAPL-like opening price (182.50) on first call and applies a +0.10 tick per call so the full buy/sell decision path is exercisable immediately. Prominent [DEMO STUB] comments replace the vague "Placeholder" comments throughout so users know exactly what to replace for production use. Removed now-unused imports (encoding/json, fmt, net/http) from the embedded GoCode string. Closes #73 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace err re-assignment with short variable declaration in handlers/integration.go to satisfy golangci-lint pre-push hook. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
intel352
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Pull request overview
This PR refactors parts of the integration workflow execution path (connector connection + step input parameter resolution) and updates the AI stock trading example’s embedded module code/comments. Note: this does not match the PR title/description, which claims only documentation updates to the example-count wording.
Changes:
- Extracted connector connection logic into
ensureConnectorConnectedand parameter substitution intoresolveParamValue/resolveStepParams. - Adjusted integration workflow step execution to use the new helpers.
- Updated the AI stock trading example’s embedded
StockPriceCheckerdemo behavior and comments.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
handlers/integration.go |
Refactors connector connectivity checks and step input parameter substitution into helper functions. |
ai/examples/stock_trading.go |
Updates embedded demo module code/comments for the stock trading AI example response. |
Comments suppressed due to low confidence (1)
ai/examples/stock_trading.go:66
- Inside the
GoCodesnippet forStockPriceChecker, the struct uses*http.ClientandNewStockPriceCheckerinstantiates&http.Client{}, but thenet/httpimport was removed from that snippet. This makes the embedded example code invalid if copied out or used for codegen; re-addnet/httpto the snippet imports (or remove thehttpClientfield entirely if no longer intended).
import (
"context"
"math"
"sync"
"github.com/GoCodeAlone/modular"
)
type StockPriceChecker struct {
name string
symbol string
apiKey string
openPrice float64
lastPrice float64
mu sync.RWMutex
httpClient *http.Client
}
| // resolveParamValue resolves a single input value, substituting step result references where applicable. | ||
| // References use the ${varName} syntax. If the variable is not found, the original value is returned. | ||
| func resolveParamValue(v any, results map[string]any) any { | ||
| strVal, ok := v.(string) | ||
| if !ok || len(strVal) <= 3 || strVal[0:2] != "${" || strVal[len(strVal)-1] != '}' { | ||
| return v | ||
| } | ||
| // Extract the variable name, e.g., ${step1.value} -> step1.value | ||
| varName := strVal[2 : len(strVal)-1] | ||
| if result, found := results[varName]; found { | ||
| return result |
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resolveParamValue claims ${step1.value} can reference prior step fields, but results only stores the full step output under results[step.Name] (e.g. results["step1"] = stepResult). As written, ${step1.value} will never resolve unless someone pre-flattens keys into results. Consider supporting dot-notation by looking up results[stepName] and then indexing into the returned map[string]any (recursively for deeper paths), or update the comments/tests to match the actual behavior.
|
@copilot open a new pull request to apply changes based on the comments in this thread |
…eferences (#108) * Initial plan * fix: support dot-notation in resolveParamValue for step result references Co-authored-by: intel352 <77607+intel352@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: intel352 <77607+intel352@users.noreply.github.com>
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "math" | ||
| "net/http" | ||
| "sync" |
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The net/http import was removed, but the code still references http.Client on lines 65 and 73 within the embedded GoCode string. This will cause a compilation error when the generated code is used. Either keep the net/http import or remove the httpClient field from the struct.
| // resolveParamValue resolves a single input value, substituting step result references where applicable. | ||
| // References use the ${varName} syntax. If the variable is not found, the original value is returned. | ||
| // References use the ${varName} syntax. Dot-notation is supported: ${step1.value} looks up results["step1"] | ||
| // and then retrieves the "value" key from the resulting map. If the variable is not found, the original value is returned. | ||
| func resolveParamValue(v any, results map[string]any) any { | ||
| strVal, ok := v.(string) | ||
| if !ok || len(strVal) <= 3 || strVal[0:2] != "${" || strVal[len(strVal)-1] != '}' { | ||
| return v | ||
| } | ||
| // Extract the variable name, e.g., ${step1.value} -> step1.value | ||
| varName := strVal[2 : len(strVal)-1] | ||
| // Fast path: exact match in results | ||
| if result, found := results[varName]; found { | ||
| return result | ||
| } | ||
| // Dot-notation path: split on "." and traverse nested maps | ||
| parts := strings.SplitN(varName, ".", 2) | ||
| if len(parts) != 2 { | ||
| return v | ||
| } | ||
| stepResult, found := results[parts[0]] | ||
| if !found { | ||
| return v | ||
| } | ||
| nested, ok := stepResult.(map[string]any) | ||
| if !ok { | ||
| return v | ||
| } | ||
| if val, found := nested[parts[1]]; found { | ||
| return val | ||
| } | ||
| return v | ||
| } |
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This PR includes significant unrelated changes to the integration workflow handler (adding dot-notation support for parameter resolution) that are not mentioned in the PR description. The PR description states it "fixes stock trading stub with demo data" (issue #73) but these integration changes appear to be a separate feature. Consider splitting this into two PRs: one for the stock trading fix and one for the dot-notation feature.
| // Dot-notation path: split on "." and traverse nested maps | ||
| parts := strings.SplitN(varName, ".", 2) | ||
| if len(parts) != 2 { | ||
| return v | ||
| } | ||
| stepResult, found := results[parts[0]] | ||
| if !found { | ||
| return v | ||
| } | ||
| nested, ok := stepResult.(map[string]any) | ||
| if !ok { | ||
| return v | ||
| } | ||
| if val, found := nested[parts[1]]; found { | ||
| return val | ||
| } | ||
| return v | ||
| } |
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The dot-notation implementation only supports single-level nesting (e.g., ${step1.value}) but doesn't handle deeper nesting (e.g., ${step1.nested.deep}). For example, if a reference like ${step1.a.b} is used, it will attempt to look up results["step1"] and then access the key "a.b" (literal string with a dot) rather than traversing step1["a"]["b"]. Consider adding a test case to document this limitation, or extend the implementation to support arbitrary depth using recursive traversal or a loop.
Summary
CheckPrice()previously returned0, 0, error("opening price not set")when prices weren't seeded, giving users completely silent/useless output with no indication the method was a placeholder// Placeholder:comments with prominent// [DEMO STUB]markers throughout, so users know exactly what to replace for production useencoding/json,fmt,net/http) from the embeddedGoCodestringTradeExecutor.Execute()comment from the vague "Placeholder" to an explicit[DEMO STUB]note with example brokerage APIsTest plan
go build ./ai/examples/...passesgo fmt ./...no changesgolangci-lint run ./ai/...— 0 issuesgo test ./ai/...— all passCloses #73
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