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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,155 +1,160 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "os" | ||
| "strconv" | ||
| "time" | ||
|
|
||
| influxdb2 "github.com/influxdata/influxdb-client-go/v2" | ||
| _ "time/tzdata" // Embed the IANA Time Zone database | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "math" | ||
| "net/http" | ||
| "os" | ||
| "strconv" | ||
| "time" | ||
|
|
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| _ "time/tzdata" // Embed the IANA Time Zone database | ||
|
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| influxdb2 "github.com/influxdata/influxdb-client-go/v2" | ||
| ) | ||
|
|
||
| var ( | ||
| version = "0.1.1" | ||
| debug bool | ||
| version = "0.1.1" | ||
| debug bool | ||
| ) | ||
|
|
||
| type PriceData struct { | ||
| SEKPerKWh float64 `json:"SEK_per_kWh"` | ||
| TimeStart string `json:"time_start"` | ||
| SEKPerKWh float64 `json:"SEK_per_kWh"` | ||
| TimeStart string `json:"time_start"` | ||
| } | ||
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| type Response []PriceData | ||
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| func doEvery(d time.Duration, f func(time.Time)) { | ||
| f(time.Now()) // Execute immediately | ||
| for x := range time.Tick(d) { | ||
| f(x) | ||
| } | ||
| f(time.Now()) // Execute immediately | ||
| for x := range time.Tick(d) { | ||
| f(x) | ||
| } | ||
| } | ||
|
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||
|
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| func pushToInflux(t time.Time) { | ||
| priceArea := os.Getenv("PRICE_AREA") | ||
| if priceArea == "" { | ||
| fmt.Println("Error: PRICE_AREA environment variable is not set") | ||
| os.Exit(1) | ||
| } | ||
|
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| now := time.Now() | ||
| today := now.Format("2006/01-02") | ||
| tomorrow := now.AddDate(0, 0, 1).Format("2006/01-02") | ||
|
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| var urls []string | ||
| baseURL := "https://www.elprisetjustnu.se/api/v1/prices/" | ||
| urls = append(urls, baseURL+today+"_"+priceArea+".json") | ||
| if now.Hour() >= 14 && now.Minute() >= 30 { | ||
| urls = append(urls, baseURL+tomorrow+"_"+priceArea+".json") | ||
| } | ||
|
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||
| client := &http.Client{} | ||
| for _, url := range urls { | ||
| if debug { | ||
| fmt.Println("Fetching URL:", url) | ||
| } | ||
|
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||
| req, err := http.NewRequest("GET", url, nil) | ||
| if err != nil { | ||
| fmt.Println("Error creating request:", err) | ||
| continue | ||
| } | ||
| req.Header.Set("User-Agent", fmt.Sprintf("vattenfall-to-influxdb/%s (+https://github.com/rvoitenko/vattenfall-to-influxdb)", version)) | ||
|
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| resp, err := client.Do(req) | ||
| if err != nil { | ||
| fmt.Println("Error on request:", err) | ||
| continue | ||
| } | ||
| defer resp.Body.Close() | ||
|
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||
| if resp.StatusCode != http.StatusOK { | ||
| fmt.Printf("Request to %s failed with status code: %d\n", url, resp.StatusCode) | ||
| bodyBytes, _ := ioutil.ReadAll(resp.Body) | ||
| fmt.Println("Response body:", string(bodyBytes)) | ||
| continue | ||
| } | ||
|
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||
| body, err := ioutil.ReadAll(resp.Body) | ||
| if err != nil { | ||
| fmt.Println("Error reading response body:", err) | ||
| continue | ||
| } | ||
|
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||
| var result Response | ||
| if err := json.Unmarshal(body, &result); err != nil { | ||
| fmt.Println("Can not unmarshal JSON:", err) | ||
| continue | ||
| } | ||
|
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||
| if debug { | ||
| fmt.Println("Received data:", result) | ||
| } | ||
|
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| influxClient := influxdb2.NewClient(os.Getenv("INFLUXDB_URL"), os.Getenv("INFLUXDB_TOKEN")) | ||
| writeAPI := influxClient.WriteAPIBlocking(os.Getenv("INFLUXDB_ORG"), os.Getenv("INFLUXDB_BUCKET")) | ||
| for _, data := range result { | ||
| startDate, err := time.Parse(time.RFC3339, data.TimeStart) | ||
| if err != nil { | ||
| fmt.Println("Error parsing start time:", err) | ||
| continue | ||
| } | ||
|
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||
| point := influxdb2.NewPoint("current", | ||
| map[string]string{"unit": "price"}, | ||
| map[string]interface{}{"last": data.SEKPerKWh}, | ||
| startDate) | ||
|
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| if debug { | ||
| fmt.Printf("Data to be written to InfluxDB: Time: %s, SEK_per_kWh: %f\n", data.TimeStart, data.SEKPerKWh) | ||
| } | ||
|
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| writeAPI.WritePoint(context.Background(), point) | ||
| } | ||
| influxClient.Close() | ||
| } | ||
| if debug { | ||
| fmt.Printf("%v: Tick\n", t) | ||
| } | ||
| priceArea := os.Getenv("PRICE_AREA") | ||
| if priceArea == "" { | ||
| fmt.Println("Error: PRICE_AREA environment variable is not set") | ||
| os.Exit(1) | ||
| } | ||
|
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||
| now := time.Now() | ||
| today := now.Format("2006/01-02") | ||
| tomorrow := now.AddDate(0, 0, 1).Format("2006/01-02") | ||
|
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||
| var urls []string | ||
| baseURL := "https://www.elprisetjustnu.se/api/v1/prices/" | ||
| urls = append(urls, baseURL+today+"_"+priceArea+".json") | ||
| if now.Hour() >= 14 && now.Minute() >= 30 { | ||
| urls = append(urls, baseURL+tomorrow+"_"+priceArea+".json") | ||
| } | ||
|
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||
| client := &http.Client{} | ||
| for _, url := range urls { | ||
| if debug { | ||
| fmt.Println("Fetching URL:", url) | ||
| } | ||
|
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||
| req, err := http.NewRequest("GET", url, nil) | ||
| if err != nil { | ||
| fmt.Println("Error creating request:", err) | ||
| continue | ||
| } | ||
| req.Header.Set("User-Agent", fmt.Sprintf("vattenfall-to-influxdb/%s (+https://github.com/rvoitenko/vattenfall-to-influxdb)", version)) | ||
|
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| resp, err := client.Do(req) | ||
| if err != nil { | ||
| fmt.Println("Error on request:", err) | ||
| continue | ||
| } | ||
| defer resp.Body.Close() | ||
|
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||
| if resp.StatusCode != http.StatusOK { | ||
| fmt.Printf("Request to %s failed with status code: %d\n", url, resp.StatusCode) | ||
| bodyBytes, _ := ioutil.ReadAll(resp.Body) | ||
| fmt.Println("Response body:", string(bodyBytes)) | ||
| continue | ||
| } | ||
|
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||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| fmt.Println("Error reading response body:", err) | ||
| continue | ||
| } | ||
|
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||
| var result Response | ||
| if err := json.Unmarshal(body, &result); err != nil { | ||
| fmt.Println("Can not unmarshal JSON:", err) | ||
| continue | ||
| } | ||
|
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||
| if debug { | ||
| fmt.Println("Received data:", result) | ||
| } | ||
|
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| influxClient := influxdb2.NewClient(os.Getenv("INFLUXDB_URL"), os.Getenv("INFLUXDB_TOKEN")) | ||
| writeAPI := influxClient.WriteAPIBlocking(os.Getenv("INFLUXDB_ORG"), os.Getenv("INFLUXDB_BUCKET")) | ||
| for _, data := range result { | ||
| startDate, err := time.Parse(time.RFC3339, data.TimeStart) | ||
| if err != nil { | ||
| fmt.Println("Error parsing start time:", err) | ||
| continue | ||
| } | ||
|
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||
| // Round the SEK_per_kWh value to two decimal places | ||
| roundedSEK := math.Round(data.SEKPerKWh*100) / 100 | ||
|
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| point := influxdb2.NewPoint("current", | ||
| map[string]string{"unit": "price"}, | ||
| map[string]interface{}{"last": roundedSEK}, | ||
| startDate) | ||
|
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| if debug { | ||
| fmt.Printf("Data to be written to InfluxDB: Time: %s, SEK_per_kWh: %.2f\n", data.TimeStart, data.SEKPerKWh) | ||
| } | ||
|
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| writeAPI.WritePoint(context.Background(), point) | ||
| } | ||
| influxClient.Close() | ||
| } | ||
| if debug { | ||
| fmt.Printf("%v: Tick\n", t) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| location, err := time.LoadLocation("Europe/Stockholm") | ||
| if err != nil { | ||
| fmt.Println("Error loading location 'Europe/Stockholm':", err) | ||
| os.Exit(1) | ||
| } | ||
| time.Local = location | ||
|
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| intervalStr := os.Getenv("INTERVAL") | ||
| interval := 1800 | ||
| if intervalStr != "" { | ||
| intervalInt, err := strconv.Atoi(intervalStr) | ||
| if err == nil { | ||
| interval = intervalInt | ||
| } else { | ||
| fmt.Println("Invalid INTERVAL value, using default 30 seconds") | ||
| } | ||
| } | ||
|
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| debugStr := os.Getenv("DEBUG") | ||
| if debugStr != "" { | ||
| debugBool, err := strconv.ParseBool(debugStr) | ||
| if err == nil { | ||
| debug = debugBool | ||
| } else { | ||
| fmt.Println("Invalid DEBUG value, should be either true or false, using default false") | ||
| } | ||
| } | ||
|
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| doEvery(time.Duration(interval)*time.Second, pushToInflux) | ||
| location, err := time.LoadLocation("Europe/Stockholm") | ||
| if err != nil { | ||
| fmt.Println("Error loading location 'Europe/Stockholm':", err) | ||
| os.Exit(1) | ||
| } | ||
| time.Local = location | ||
|
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||
| intervalStr := os.Getenv("INTERVAL") | ||
| interval := 1800 | ||
| if intervalStr != "" { | ||
| intervalInt, err := strconv.Atoi(intervalStr) | ||
| if err == nil { | ||
| interval = intervalInt | ||
| } else { | ||
| fmt.Println("Invalid INTERVAL value, using default 30 seconds") | ||
| } | ||
| } | ||
|
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||
| debugStr := os.Getenv("DEBUG") | ||
| if debugStr != "" { | ||
| debugBool, err := strconv.ParseBool(debugStr) | ||
| if err == nil { | ||
| debug = debugBool | ||
| } else { | ||
| fmt.Println("Invalid DEBUG value, should be either true or false, using default false") | ||
| } | ||
| } | ||
|
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| doEvery(time.Duration(interval)*time.Second, pushToInflux) | ||
| } |