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How to use Error method of rod Package

Best Rod code snippet using rod.Error

rod-helper.go

Source:rod-helper.go

1package common2import (3	"context"4	"crypto/tls"5	"errors"6	"github.com/go-rod/rod"7	"github.com/go-rod/rod/lib/launcher"8	"github.com/go-rod/rod/lib/proto"9	"net/http"10	"net/url"11	"time"12)13/**14 * @Description: 			æ°å»ºä¸ä¸ªæ¯æä»£çç browser å¯¹è±¡15 * @param httpProxyURL		http://127.0.0.1:1080916 * @return *rod.Browser17 * @return error18 */19func NewBrowser(httpProxyURL string) (*rod.Browser, error) {20	var browser *rod.Browser21	err := rod.Try(func() {22		u := launcher.New().23			Proxy(httpProxyURL).24			MustLaunch()25		browser = rod.New().ControlURL(u).MustConnect()26	})27	if err != nil {28		return nil, err29	}30	return browser, nil31}32/**33 * @Description: 			è®¿é®ç®æ  Urlï¼è¿å pageï¼åªæ¯è¿ä¸ª page ææï¼å¦æåæ¬¡åºåå¶ä»çäºä»¶æ æ34 * @param desURL			ç®æ  Url35 * @param httpProxyURL		http://127.0.0.1:1080936 * @param timeOut			è¶æ¶æ¶é´37 * @param maxRetryTimes		å½æ¯éè¶æ¶ err çæ¶åï¼æå¤å¯ä»¥éè¯å æ¬¡38 * @return *rod.Page39 * @return error40 */41func NewBrowserFromDocker(httpProxyURL, remoteDockerURL string) (*rod.Browser, error) {42	var browser *rod.Browser43	err := rod.Try(func() {44		l := launcher.MustNewRemote(remoteDockerURL)45		u := l.Proxy(httpProxyURL).MustLaunch()46		l.Headless(false).XVFB()47		browser = rod.New().Client(l.Client()).ControlURL(u).MustConnect()48	})49	if err != nil {50		return nil, err51	}52	return browser, nil53}54func NewPage(browser *rod.Browser) (*rod.Page, error) {55	page, err := browser.Page(proto.TargetCreateTarget{URL: ""})56	if err != nil {57		return nil, err58	}59	return page, err60}61func NewPageNavigate(browser *rod.Browser, desURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {62	page, err := NewPage(browser)63	if err != nil {64		return nil, err65	}66	page = page.Timeout(timeOut)67	nowRetryTimes := 068	for nowRetryTimes <= maxRetryTimes {69		err = rod.Try(func() {70			wait := page.MustWaitNavigation()71			page.MustNavigate(desURL)72			wait()73		})74		if errors.Is(err, context.DeadlineExceeded) {75			// è¶æ¶76			return nil, err77		} else if err == nil {78			// æ²¡æé®é¢79			return page, nil80		}81	}82	return nil, err83}84func PageNavigate(page *rod.Page, desURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {85	var err error86	page = page.Timeout(timeOut)87	nowRetryTimes := 088	for nowRetryTimes <= maxRetryTimes {89		err = rod.Try(func() {90			wait := page.MustWaitNavigation()91			page.MustNavigate(desURL)92			wait()93		})94		if errors.Is(err, context.DeadlineExceeded) {95			// è¶æ¶96			return nil, err97		} else if err == nil {98			// æ²¡æé®é¢99			return page, nil100		}101	}102	return nil, err103}104/**105 * @Description: 			è®¿é®ç®æ  Urlï¼è¿å pageï¼åªæ¯è¿ä¸ª page ææï¼å¦æåæ¬¡åºåå¶ä»çäºä»¶æ æ106 * @param desURL			ç®æ  Url107 * @param httpProxyURL		http://127.0.0.1:10809108 * @param timeOut			è¶æ¶æ¶é´109 * @param maxRetryTimes		å½æ¯éè¶æ¶ err çæ¶åï¼æå¤å¯ä»¥éè¯å æ¬¡110 * @return *rod.Page111 * @return error112 */113func NewBrowserLoadPage(desURL string, httpProxyURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {114	browser, err := NewBrowser(httpProxyURL)115	if err != nil {116		return nil, err117	}118	page, err := browser.Page(proto.TargetCreateTarget{URL: ""})119	if err != nil {120		return nil, err121	}122	page = page.Timeout(timeOut)123	nowRetryTimes := 0124	for nowRetryTimes <= maxRetryTimes {125		err = rod.Try(func() {126			wait := page.MustWaitNavigation()127			page.MustNavigate(desURL)128			wait()129		})130		if errors.Is(err, context.DeadlineExceeded) {131			// è¶æ¶132			return nil, err133		} else if err == nil {134			// æ²¡æé®é¢135			return page, nil136		}137	}138	return nil, err139}140/**141 * @Description: 			è®¿é®ç®æ  Urlï¼è¿å pageï¼åªæ¯è¿ä¸ª page ææï¼å¦æåæ¬¡åºåå¶ä»çäºä»¶æ æ142 * @param desURL			ç®æ  Url143 * @param httpProxyURL		http://127.0.0.1:10809144 * @param timeOut			è¶æ¶æ¶é´145 * @param maxRetryTimes		å½æ¯éè¶æ¶ err çæ¶åï¼æå¤å¯ä»¥éè¯å æ¬¡146 * @return *rod.Page147 * @return error148 */149func NewBrowserLoadPageFromRemoteDocker(desURL string, httpProxyURL, remoteDockerURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {150	browser, err := NewBrowserFromDocker(httpProxyURL, remoteDockerURL)151	if err != nil {152		return nil, err153	}154	page, err := browser.Page(proto.TargetCreateTarget{URL: ""})155	if err != nil {156		return nil, err157	}158	page = page.Timeout(timeOut)159	nowRetryTimes := 0160	for nowRetryTimes <= maxRetryTimes {161		err = rod.Try(func() {162			wait := page.MustWaitNavigation()163			page.MustNavigate(desURL)164			wait()165		})166		if errors.Is(err, context.DeadlineExceeded) {167			// è¶æ¶168			return nil, err169		} else if err == nil {170			// æ²¡æé®é¢171			break172		}173	}174	return page, nil175}176/**177 * @Description:			è®¿é®ç®æ  Urlï¼è¿å pageï¼åªæ¯è¿ä¸ª page ææï¼å¦æåæ¬¡åºåå¶ä»çäºä»¶æ æ178 * @param desURL			ç®æ  Url179 * @param httpProxyURL		http://127.0.0.1:10809180 * @param timeOut			è¶æ¶æ¶é´181 * @param maxRetryTimes		å½æ¯éè¶æ¶ err çæ¶åï¼æå¤å¯ä»¥éè¯å æ¬¡182 * @return *rod.Page183 * @return error184 */185func NewBrowserLoadPageByHijackRequests(desURL string, httpProxyURL string, timeOut time.Duration, maxRetryTimes int) (*rod.Page, error) {186	var page *rod.Page187	var err error188	// åå»ºä¸ä¸ª page189	browser := rod.New()190	err = browser.Connect()191	if err != nil {192		return nil, err193	}194	page, err = browser.Page(proto.TargetCreateTarget{URL: ""})195	if err != nil {196		return nil, err197	}198	page = page.Timeout(timeOut)199	// è®¾ç½®ä»£ç200	router := page.HijackRequests()201	defer router.Stop()202	err = rod.Try(func() {203		router.MustAdd("*", func(ctx *rod.Hijack) {204			px, _ := url.Parse(httpProxyURL)205			ctx.LoadResponse(&http.Client{206				Transport: &http.Transport{207					Proxy:           http.ProxyURL(px),208					TLSClientConfig: &tls.Config{InsecureSkipVerify: true},209				},210				Timeout: timeOut,211			}, true)212		})213	})214	if err != nil {215		return nil ,err216	}217	go router.Run()218	nowRetryTimes := 0219	for nowRetryTimes <= maxRetryTimes {220		err = rod.Try(func() {221			page.MustNavigate(desURL).MustWaitLoad()222		})223		if errors.Is(err, context.DeadlineExceeded) {224			// è¶æ¶225			return nil, err226		} else if err == nil {227			// æ²¡æé®é¢228			break229		}230		time.Sleep(time.Second)231		nowRetryTimes++232	}233	return page, nil234}...

rod.go

Source:rod.go

...21func (rod Rod) Validate() error {22	return validation.ValidateStruct(&rod,23		validation.Field(24			&rod.Name,25			validation.Required.Error("Name is required"),26			validation.RuneLength(1, 40).Error("Name should be less thna 40 letters"),27		),28		validation.Field(29			&rod.CompanyName,30			validation.RuneLength(1, 80).Error("CompanyName should be less thna 80 letters"),31		),32	)33}34/**35  ãããä¸è¦§åå¾36*/37func GetAllRods(rods []Rod, uid int) []Rod {38	db := database.GetDBConn()39	// ãã°ã¤ã³ã¦ã¼ã¶ã¯èªåã®ãããããè¦ããªã40	db.Where("user_id = ?", uid).Preload("RodImage").Preload("RodHardnessCondition").Find(&rods)41	return rods42}43/**44  ãããåå¾45*/46func GetRod(rod Rod, rod_id int, uid int) Rod {47	db := database.GetDBConn()48	// ãã°ã¤ã³ã¦ã¼ã¶ã¯èªåã®ãããããè¦ããªã49	db.Where("user_id = ?", uid).Preload("RodImage").Preload("RodHardnessCondition").First(&rod, rod_id)50	return rod51}52/**53  ãããæ´æ°54*/55func UpdateRod(r Rod, rod_id int) error {56	var rod Rod57	db := database.GetDBConn()58	// ãã°ã¤ã³ã¦ã¼ã¶ã¯èªåã®ãããããè¦ããªã59	db.Where("user_id = ?", r.UserId).First(&rod, rod_id)60	result := db.Model(&rod).Updates(Rod{61		Name:        r.Name,62		UserId:      r.UserId,63		Hardness:    r.Hardness,64		Length:      r.Length,65		CompanyName: r.CompanyName,66	}).Error67	return result68}69/**70  ãããä½æ71*/72func CreateRod(rod Rod, image Image) error {73	// ãããç»åã¢ãã«74	var rod_image RodImage75	db := database.GetDBConn()76	result := db.Transaction(func(tx *gorm.DB) error {77		if err := tx.Create(&rod).Error; err != nil {78			// ã¨ã©ã¼ã®å ´åãã¼ã«ããã¯ããã79			return err80		}81		if (Image{}) != image { // ç»åãã¼ã¿ãã»ããããã¦ããå ´å82			// ç»åãã¼ã¿ã«ãããIDãã»ãã83			rod_image.RodId = rod.ID84			file_name := CreateImageName()85			image_path := "/rod_image/" + strconv.Itoa(rod.UserId) + "/" + file_name86			rod_image.ImageFile = image_path87			if err := tx.Create(&rod_image).Error; err != nil {88				// ã¨ã©ã¼ã®å ´åãã¼ã«ããã¯ããã89				return err90			}91			// S3ã«ç»åã¢ãããã¼ã92			UploadToS3(image, image_path)93		}94		// nilãè¿å´ãããã¨ãã©ã³ã¶ã¯ã·ã§ã³åã®å¨å¦çãã³ãããããã95		return nil96	})97	return result98}99/**100  ãããåé¤101*/102func DeleteRod(rod Rod, rod_id int) error {103	db := database.GetDBConn()104	db.First(&rod, rod_id)105	result := db.Delete(&rod).Error106	return result107}...

webdriver.go

Source:webdriver.go

...38		ControlURL(url).39		Trace(trace).40		SlowMotion(motion).41		MustConnect()42	browser.MustIgnoreCertErrors(true)43	return &RodSession{44		Launcher:  l,45		WebDriver: browser,46	}, nil47}48// StartRod create a rod/chromedp session.49func StartRod() (*RodSession, error) {50	return StartRodWithProxy("")51}52// Stop stop the rod/chromedp session.53func (rs *RodSession) Stop() error {54	err := rs.WebDriver.Close()55	if err != nil {56		return err57	}58	rs.Launcher.Cleanup()59	return err60}61// WaitElementLocatedByClassName wait an element is located by class name.62func (rs *RodSession) WaitElementLocatedByClassName(t *testing.T, page *rod.Page, className string) *rod.Element {63	e, err := page.Element("." + className)64	require.NoError(t, err)65	require.NotNil(t, e)66	return e67}68// WaitElementLocatedByID waits for an element located by an id.69func (rs *RodSession) WaitElementLocatedByID(t *testing.T, page *rod.Page, cssSelector string) *rod.Element {70	e, err := page.Element("#" + cssSelector)71	require.NoError(t, err)72	require.NotNil(t, e)73	return e74}75// WaitElementsLocatedByID waits for an elements located by an id.76func (rs *RodSession) WaitElementsLocatedByID(t *testing.T, page *rod.Page, cssSelector string) rod.Elements {77	e, err := page.Elements("#" + cssSelector)78	require.NoError(t, err)79	require.NotNil(t, e)80	return e81}82func (rs *RodSession) waitBodyContains(t *testing.T, page *rod.Page, pattern string) {83	text, err := page.MustElementR("body", pattern).Text()84	require.NoError(t, err)85	require.NotNil(t, text)86	if strings.Contains(text, pattern) {87		err = nil88	} else {89		err = fmt.Errorf("body does not contain pattern: %s", pattern)90	}91	require.NoError(t, err)92}...

Error

Using AI Code Generation

1import (2func main() {3	_, err := Sqrt(-2)4	if err != nil {5		fmt.Println(err)6	}7}8func Sqrt(f float64) (float64, error) {9	if f < 0 {10		return 0, fmt.Errorf("cannot Sqrt negative number: %v", f)11	}12	return math.Sqrt(f), nil13}14import (15func main() {16	_, err := Sqrt(-2)17	if err != nil {18		fmt.Println(err)19	}20}21func Sqrt(f float64) (float64, error) {22	if f < 0 {23		return 0, fmt.Errorf("cannot Sqrt negative number: %v", f)24	}25	return math.Sqrt(f), nil26}27import (28func main() {29	_, err := Sqrt(-2)30	if err != nil {31		fmt.Println(err)32	}33}34func Sqrt(f float64) (float64, error) {35	if f < 0 {36		return 0, fmt.Errorf("cannot Sqrt negative number: %v", f)37	}38	return math.Sqrt(f), nil39}40import (41func main() {42	_, err := Sqrt(-2)43	if err != nil {44		fmt.Println(err)45	}46}47func Sqrt(f float64) (float64, error) {48	if f < 0 {49		return 0, fmt.Errorf("cannot Sqrt negative number: %v", f)50	}51	return math.Sqrt(f), nil52}53import (

Error

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {4		fmt.Fprintln(w, "Hello World!")5	})6	err := http.ListenAndServe(":8080", nil)7	if err != nil {8		log.Fatal(err)9	}10}11import (12func main() {13	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {14		fmt.Fprintln(w, "Hello World!")15	})16	err := http.ListenAndServe(":8080", nil)17	if err != nil {18		log.Fatalf("ListenAndServe: %v", err)19	}20}21import (22func main() {23	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {24		fmt.Fprintln(w, "Hello World!")25	})26	err := http.ListenAndServe(":8080", nil)27	if err != nil {28		log.Fatalf("ListenAndServe: %v", err)29	}30}31import (32func main() {33	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {34		fmt.Fprintln(w, "Hello World!")35	})36	err := http.ListenAndServe(":8080", nil)37	if err != nil {38		log.Fatal(err)39	}40}41import (42func main() {43	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {44		fmt.Fprintln(w, "Hello World!")45	})46	err := http.ListenAndServe(":8080", nil)47	if err != nil {48		log.Panicf("ListenAndServe: %v", err)49	}50}51import (52func main() {53	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {

Error

Using AI Code Generation

1import (2func main() {3    err := errors.New("This is an error")4    fmt.Println(err)5}6import (7func main() {8    err := fmt.Errorf("This is an error")9    fmt.Println(err)10}11import (12func main() {13    err := fmt.Errorf("%d", 123)14    fmt.Println(err)15}16import (17func main() {18    err := fmt.Errorf("%d", 123)19    fmt.Println(err)20    fmt.Printf("%T", err)21}22import (23func main() {24    err := fmt.Errorf("%d", 123)25    fmt.Println(err)26    fmt.Printf("%T", err)27    fmt.Printf("%v", err)28}29import (30func main() {31    err := fmt.Errorf("%d", 123)32    fmt.Println(err)33    fmt.Printf("%T", err)34    fmt.Printf("%v", err)35    fmt.Printf("%q", err)36}37import (38func main() {39    err := fmt.Errorf("%d", 123)40    fmt.Println(err)41    fmt.Printf("%T", err)42    fmt.Printf("%v", err)43    fmt.Printf("%q", err)44    fmt.Printf("%s", err)45}

Error

Using AI Code Generation

1import (2func main() {3	browser := rod.New().MustConnect()4	page.MustElement("input[name=q]").MustInput("rod").MustPress(input.Enter)5	page.MustElement("h3").MustClick()6	page.MustElement("h1").MustHandleError(func(e *rod.Error) {7		fmt.Println(e)8	})9}10import (11func main() {12	browser := rod.New().MustConnect()13	page.MustElement("input[name=q]").MustInput("rod").MustPress(input.Enter)14	page.MustElement("h3").MustClick()15	page.MustElement("h1").MustHandleError(func(e *rod.Error) {16		fmt.Println(e)17	})18}19import (20func main() {21	browser := rod.New().MustConnect()22	page.MustElement("input[name=q]").MustInput("rod").MustPress(input.Enter)23	page.MustElement("h3").MustClick()24	page.MustElement("h1").MustHandleError(func(e *rod.Error) {25		fmt.Println(e)26	})27}28import (29func main() {30	browser := rod.New().MustConnect()31	page.MustElement("input[name=q]").MustInput("rod").MustPress(input.Enter)32	page.MustElement("h3").MustClick()33	page.MustElement("h1").MustHandleError(func(e *rod.Error) {34		fmt.Println(e)35	})36}37import (

Error

Using AI Code Generation

1import (2type Rod struct {3}4func (r Rod) Error() string {5	return fmt.Sprintf("Rod length is %f", r.Length)6}7func main() {8	r := Rod{Length: -1}9	if r.Length < 0 {10		fmt.Println(r.Error())11		os.Exit(1)12	}13}14import (15type Rod struct {16}17func (r Rod) Error() string {18	return fmt.Sprintf("Rod length is %f", r.Length)19}20func main() {21	r := Rod{Length: -1}22	if r.Length < 0 {23		fmt.Println(r.Error())24		os.Exit(1)25	}26}27import (28type Rod struct {29}30func (r Rod) Error() string {31	return fmt.Sprintf("Rod length is %f", r.Length)32}33func main() {34	r := Rod{Length: -1}35	if r.Length < 0 {36		fmt.Println(r.Error())37		os.Exit(1)38	}39}40import (41type Rod struct {42}43func (r Rod) Error() string {44	return fmt.Sprintf("Rod length is %f", r.Length)45}46func main() {47	r := Rod{Length: -1}48	if r.Length < 0 {49		fmt.Println(r.Error())50		os.Exit(1)51	}52}53import (54type Rod struct {55}56func (r Rod) Error() string {57	return fmt.Sprintf("Rod length is %f", r.Length)58}59func main() {60	r := Rod{Length:

Error

Using AI Code Generation

1import (2type Rod struct {3}4func (r Rod) Error() string {5	return fmt.Sprintf("A rod's length cannot be less than zero. It was %d", r.Length)6}7func main() {8	rod := Rod{Length: -1}9	_, err := calculateCost(rod)10	if err != nil {11		log.Fatal(err)12	}13}14func calculateCost(rod Rod) (int, error) {15	if rod.Length < 0 {16	}17}18import (19type Rod struct {20}21func (r Rod) Error() string {22	return fmt.Sprintf("A rod's length cannot be less than zero. It was %d", r.Length)23}24func main() {25	rod := Rod{Length: -1}26	_, err := calculateCost(rod)27	if err != nil {28		log.Fatal(err)29	}30}31func calculateCost(rod Rod) (int, error) {32	if rod.Length < 0 {33	}34}35import (36type Rod struct {37}38func (r Rod) Error() string {39	return fmt.Sprintf("A rod's length cannot be less than zero. It was %d", r.Length)40}41func main() {42	rod := Rod{Length: -1}43	_, err := calculateCost(rod)44	if err != nil {45		log.Fatal(err)46	}47}48func calculateCost(rod Rod) (int, error) {49	if rod.Length < 0 {50	}51}

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