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feat: add minimum required version metric.
Add new metric solana_min_required_version to track the minimum required Solana version for foundation delegation program across different clusters.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package api | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "net/http" | ||
| "sync" | ||
| "time" | ||
| ) | ||
|
|
||
| type Client struct { | ||
| HttpClient http.Client | ||
| cache struct { | ||
| version string | ||
| lastCheck time.Time | ||
| } | ||
| mu sync.RWMutex | ||
| // How often to refresh the cache | ||
| cacheTimeout time.Duration | ||
| } | ||
|
|
||
| func NewClient() *Client { | ||
| return &Client{ | ||
| HttpClient: http.Client{}, | ||
| cacheTimeout: 6 * time.Hour, // Cache for 6 hours by default | ||
| } | ||
| } | ||
|
|
||
| func (c *Client) GetMinRequiredVersion(ctx context.Context, cluster string) (string, error) { | ||
| // Check cache first | ||
| c.mu.RLock() | ||
| if !c.cache.lastCheck.IsZero() && time.Since(c.cache.lastCheck) < c.cacheTimeout { | ||
| version := c.cache.version | ||
| c.mu.RUnlock() | ||
| return version, nil | ||
| } | ||
| c.mu.RUnlock() | ||
|
|
||
| // Cache miss or expired, fetch new data | ||
| url := fmt.Sprintf("https://api.solana.org/api/validators/epoch-stats?cluster=%s&epoch=latest", cluster) | ||
|
|
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| req, err := http.NewRequestWithContext(ctx, "GET", url, nil) | ||
| if err != nil { | ||
| return "", fmt.Errorf("failed to create request: %w", err) | ||
| } | ||
|
|
||
| resp, err := c.HttpClient.Do(req) | ||
| if err != nil { | ||
| return "", fmt.Errorf("failed to fetch min required version: %w", err) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| var stats ValidatorEpochStats | ||
| if err := json.NewDecoder(resp.Body).Decode(&stats); err != nil { | ||
| return "", fmt.Errorf("failed to decode response: %w", err) | ||
| } | ||
|
|
||
| // Validate the response structure | ||
| if stats.Stats.Config.MinVersion == "" { | ||
| return "", fmt.Errorf("min_version not found in response") | ||
| } | ||
|
|
||
| // Update cache | ||
| c.mu.Lock() | ||
| c.cache.version = stats.Stats.Config.MinVersion | ||
| c.cache.lastCheck = time.Now() | ||
| c.mu.Unlock() | ||
|
|
||
| return stats.Stats.Config.MinVersion, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| package api | ||
|
|
||
| type ValidatorEpochStats struct { | ||
| Stats struct { | ||
| Config struct { | ||
| MinVersion string `json:"min_version"` | ||
| } `json:"config"` | ||
| } `json:"stats"` | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| package rpc |