commit dbe86acfac9d9858588b59ad6b1ca807c2d76ab3 Author: Kar Date: Mon Jan 8 14:00:41 2024 +0530 init diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b201d40 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +Gopkg.lock +Gopkg.toml +vendor \ No newline at end of file diff --git a/core/appcontext/context.go b/core/appcontext/context.go new file mode 100644 index 0000000..a4302dc --- /dev/null +++ b/core/appcontext/context.go @@ -0,0 +1,76 @@ +package appcontext + +import ( + "context" + "github.com/google/uuid" + "strings" +) + +type customContextType string + +const ( + AppCtx customContextType = "appCtx" +) + +type AppExtContext struct { + UserEmail string // Email of the user + RequestID string // RequestID - used to track logs across a request-response cycle + Locale string // Locale for language + Application string // application for dynamic application auth +} + +type AppContext struct { + context.Context + AppExtContext +} + +func GetAppCtx(ctx context.Context) (AppExtContext, bool) { + if ctx == nil { + return AppExtContext{}, false + } + appCtx, exists := ctx.Value(AppCtx).(AppExtContext) + return appCtx, exists +} + +func WithAppCtx(ctx context.Context, appCtx AppExtContext) context.Context { + return context.WithValue(ctx, AppCtx, appCtx) +} + +func UpgradeCtx(ctx context.Context) AppContext { + var appCtx AppContext + tCtx, _ := GetAppCtx(ctx) + + appCtx.Context = ctx + appCtx.AppExtContext = tCtx + return appCtx +} + +func NewAppContext() AppContext { + return AppContext{ + Context: context.Background(), + AppExtContext: AppExtContext{}, + } +} + +func CopyAppContext(ctx context.Context) AppContext { + appCtx, _ := GetAppCtx(ctx) + return AppContext{ + Context: context.Background(), + AppExtContext: appCtx, + } +} + +func New(id ...string) AppContext { + var requestID string + if len(id) > 0 { + requestID = id[0] + } + if len(requestID) == 0 { + requestID = strings.ReplaceAll(uuid.NewString(), "-", "") + } + appCtx := AppExtContext{ + RequestID: requestID, + } + ctx := UpgradeCtx(WithAppCtx(context.Background(), appCtx)) + return ctx +} diff --git a/core/appserver/brotli.go b/core/appserver/brotli.go new file mode 100644 index 0000000..72b023d --- /dev/null +++ b/core/appserver/brotli.go @@ -0,0 +1,61 @@ +package appserver + +import ( + "github.com/andybalholm/brotli" + "net/http" + "sync" +) + +type brotliResponseWriter struct { + http.ResponseWriter + + w *brotli.Writer + statusCode int + headerWritten bool +} + +var ( + poolbr = sync.Pool{ + New: func() interface{} { + w := brotli.NewWriterLevel(nil, brotli.BestSpeed) + return &brotliResponseWriter{ + w: w, + } + }, + } +) + +func (br *brotliResponseWriter) WriteHeader(statusCode int) { + br.statusCode = statusCode + br.headerWritten = true + + if br.statusCode != http.StatusNotModified && br.statusCode != http.StatusNoContent { + br.ResponseWriter.Header().Del("Content-Length") + br.ResponseWriter.Header().Set("Content-Encoding", "br") + } + + br.ResponseWriter.WriteHeader(statusCode) +} +func (br *brotliResponseWriter) Write(b []byte) (int, error) { + if _, ok := br.Header()["Content-Type"]; !ok { + // If no content type, apply sniffing algorithm to un-gzipped body. + br.ResponseWriter.Header().Set("Content-Type", http.DetectContentType(b)) + } + + if !br.headerWritten { + // This is exactly what Go would also do if it hasn't been written yet. + br.WriteHeader(http.StatusOK) + } + + return br.w.Write(b) +} + +func (br *brotliResponseWriter) Flush() { + if br.w != nil { + br.w.Flush() + } + + if fw, ok := br.ResponseWriter.(http.Flusher); ok { + fw.Flush() + } +} diff --git a/core/appserver/gzip.go b/core/appserver/gzip.go new file mode 100644 index 0000000..01c1782 --- /dev/null +++ b/core/appserver/gzip.go @@ -0,0 +1,62 @@ +package appserver + +import ( + "compress/gzip" + "net/http" + "sync" +) + +type gzipResponseWriter struct { + http.ResponseWriter + + w *gzip.Writer + statusCode int + headerWritten bool +} + +var ( + pool = sync.Pool{ + New: func() interface{} { + w, _ := gzip.NewWriterLevel(nil, gzip.BestSpeed) + return &gzipResponseWriter{ + w: w, + } + }, + } +) + +func (gzr *gzipResponseWriter) WriteHeader(statusCode int) { + gzr.statusCode = statusCode + gzr.headerWritten = true + + if gzr.statusCode != http.StatusNotModified && gzr.statusCode != http.StatusNoContent { + gzr.ResponseWriter.Header().Del("Content-Length") + gzr.ResponseWriter.Header().Set("Content-Encoding", "gzip") + } + + gzr.ResponseWriter.WriteHeader(statusCode) +} + +func (gzr *gzipResponseWriter) Write(b []byte) (int, error) { + if _, ok := gzr.Header()["Content-Type"]; !ok { + // If no content type, apply sniffing algorithm to un-gzipped body. + gzr.ResponseWriter.Header().Set("Content-Type", http.DetectContentType(b)) + } + + if !gzr.headerWritten { + // This is exactly what Go would also do if it hasn't been written yet. + gzr.WriteHeader(http.StatusOK) + } + + return gzr.w.Write(b) +} + +func (gzr *gzipResponseWriter) Flush() { + if gzr.w != nil { + gzr.w.Flush() + } + + if fw, ok := gzr.ResponseWriter.(http.Flusher); ok { + fw.Flush() + } +} diff --git a/core/appserver/httpServer.go b/core/appserver/httpServer.go new file mode 100644 index 0000000..6a11b1c --- /dev/null +++ b/core/appserver/httpServer.go @@ -0,0 +1,108 @@ +package appserver + +import ( + "errors" + "github.com/gorilla/context" + "github.com/gorilla/handlers" + "github.com/gorilla/mux" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "go.elastic.co/apm/module/apmgorilla" + "net/http" + "net/http/pprof" +) + +var ( + AppName string +) + +func (s *server) Start(ctx appcontext.AppContext) { + allowedOrigins := handlers.AllowedOrigins([]string{"*"}) // Allowing all origin as of now + + allowedHeaders := handlers.AllowedHeaders([]string{ + "Accept", + "Content-Type", + "contentType", + "Content-Length", + "Accept-Encoding", + "Client-Security-Token", + "X-CSRF-Token", + "X-Auth-Token", + "processData", + "Authorization", + "Access-Control-Request-Headers", + "Access-Control-Request-Method", + "Connection", + "Host", + "Origin", + "User-Agent", + "Referer", + "Cache-Control", + "X-header", + "X-Requested-With", + "timezone", + "locale", + "gzip-compress", + "task", + "access_token", + "application", + }) + + allowedMethods := handlers.AllowedMethods([]string{ + "POST", + "GET", + "DELETE", + "PUT", + "PATCH", + "OPTIONS"}) + + allowCredential := handlers.AllowCredentials() + + serverHandler := handlers.CORS( + allowedHeaders, + allowedMethods, + allowedOrigins, + allowCredential)( + context.ClearHandler( + s.newRouter(s.subRoute), + ), + ) + log.GenericInfo(ctx, "Starting Server", + log.FieldsMap{ + "Port": s.port, + "SubRoute": s.subRoute, + "App": AppName, + }) + + err := http.ListenAndServe(":"+s.port, serverHandler) + if err != nil { + log.GenericError(ctx, errors.New("failed to start appserver"), + log.FieldsMap{ + "Port": s.port, + "SubRoute": s.subRoute, + "App": AppName, + }) + + return + } +} + +// Handles all incoming request who matches registered routes against the request. +func (s *server) newRouter(subRoute string) *mux.Router { + muxRouter := mux.NewRouter().StrictSlash(true) + muxRouter.HandleFunc(subRoute+"/debug/pprof", pprof.Index) + muxRouter.HandleFunc(subRoute+"/debug/pprof/cmdline", pprof.Cmdline) + muxRouter.HandleFunc(subRoute+"/debug/pprof/profile", pprof.Profile) + muxRouter.HandleFunc(subRoute+"/debug/pprof/symbol", pprof.Symbol) + muxRouter.HandleFunc(subRoute+"/debug/pprof/trace", pprof.Trace) + muxRouter.Handle(subRoute+"/debug/pprof/goroutine", pprof.Handler("goroutine")) + muxRouter.Handle(subRoute+"/debug/pprof/heap", pprof.Handler("heap")) + muxRouter.Handle(subRoute+"/debug/pprof/thread/create", pprof.Handler("threadcreate")) + muxRouter.Handle(subRoute+"/debug/pprof/block", pprof.Handler("block")) + muxRouter.Use(SetTraceID, apmgorilla.Middleware()) + for _, r := range s.routes { + muxRouter.HandleFunc(subRoute+r.Pattern, r.HandlerFunc).Methods(r.Method) + } + + return muxRouter +} diff --git a/core/appserver/middleware.go b/core/appserver/middleware.go new file mode 100644 index 0000000..b251582 --- /dev/null +++ b/core/appserver/middleware.go @@ -0,0 +1,195 @@ +package appserver + +import ( + "bytes" + "encoding/json" + "fmt" + "github.com/felixge/httpsnoop" + "github.com/google/uuid" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "go.elastic.co/apm" + "go.elastic.co/apm/module/apmhttp" + "io/ioutil" + "net/http" + "runtime/debug" + "strings" + "time" +) + +const TraceID = "traceid" + +func SetTraceID(next http.Handler) http.Handler { + return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { + var traceID apm.TraceID + if values := r.Header[apmhttp.W3CTraceparentHeader]; len(values) == 1 && values[0] != "" { + if c, err := apmhttp.ParseTraceparentHeader(values[0]); err == nil { + traceID = c.Trace + } + } + if err := traceID.Validate(); err != nil { + uuidId := uuid.New() + var spanID apm.SpanID + var traceOptions apm.TraceOptions + copy(traceID[:], uuidId[:]) + copy(spanID[:], traceID[8:]) + traceContext := apm.TraceContext{ + Trace: traceID, + Span: spanID, + Options: traceOptions.WithRecorded(true), + } + r.Header.Set(apmhttp.W3CTraceparentHeader, apmhttp.FormatTraceparentHeader(traceContext)) + } + + w.Header().Set(TraceID, traceID.String()) + r.Header.Set(requestID, traceID.String()) + next.ServeHTTP(w, r) + }) +} + +func enableCompression(next http.HandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + if !strings.Contains(r.Header.Get("Accept-Encoding"), "br") && !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") { + next(w, r) + return + } else if !strings.Contains(r.Header.Get("Accept-Encoding"), "br") { + gzr := pool.Get().(*gzipResponseWriter) + gzr.statusCode = 0 + gzr.headerWritten = false + gzr.ResponseWriter = w + gzr.w.Reset(w) + defer func() { + // gzr.w.Close will write a footer even if no data has been written. + // StatusNotModified and StatusNoContent expect an empty body so don't close it. + if gzr.statusCode != http.StatusNotModified && gzr.statusCode != http.StatusNoContent { + if err := gzr.w.Close(); err != nil { + ctx := appcontext.UpgradeCtx(r.Context()) + log.GenericError(ctx, err, nil) + } + } + pool.Put(gzr) + }() + next(gzr, r) + return + } + br := poolbr.Get().(*brotliResponseWriter) + br.statusCode = 0 + br.headerWritten = false + br.ResponseWriter = w + br.w.Reset(w) + + defer func() { + // brotli.w.Close will write a footer even if no data has been written.x + // StatusNotModified and StatusNoContent expect an empty body so don't close it. + if br.statusCode != http.StatusNotModified && br.statusCode != http.StatusNoContent { + if err := br.w.Close(); err != nil { + ctx := appcontext.UpgradeCtx(r.Context()) + log.GenericError(ctx, err, nil) + } + } + poolbr.Put(br) + }() + next(br, r) + } +} + +func recovery(next http.HandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + defer func() { + ctx := appcontext.UpgradeCtx(r.Context()) + rec := recover() + if rec != nil { + span, _ := apm.StartSpan(ctx.Context, "recovery", "custom") + defer span.End() + trace := string(debug.Stack()) + trace = strings.Replace(trace, "\n", " ", -1) + trace = strings.Replace(trace, "\t", " ", -1) + log.GenericError(ctx, fmt.Errorf("%v", rec), + log.FieldsMap{ + "msg": "recovering from panic", + "stackTrace": trace, + }) + jsonBody, _ := json.Marshal(map[string]string{ + "error": "There was an internal server error", + }) + e := apm.DefaultTracer.Recovered(rec) + e.SetSpan(span) + e.Send() + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusInternalServerError) + w.Write(jsonBody) + } + }() + next.ServeHTTP(w, r) + } +} + +func logRequest(handler http.HandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + start := time.Now() + m := httpsnoop.CaptureMetrics(handler, w, r) + log.HTTPLog(constructHTTPLog(r, m, time.Since(start))) + } +} + +func constructHTTPLog(r *http.Request, m httpsnoop.Metrics, duration time.Duration) string { + ctx := r.Context().Value(appcontext.AppCtx) + + rawBody, _ := ioutil.ReadAll(r.Body) + if len(rawBody) > 0 { + r.Body = ioutil.NopCloser(bytes.NewBuffer(rawBody)) + } + var jsonBody interface{} + // For Testing + json.Unmarshal(rawBody, &jsonBody) + bodyJsonByte, _ := json.Marshal(jsonBody) + if ctx != nil { + tCtx := ctx.(appcontext.AppExtContext) + return fmt.Sprintf("|%s|%s|%s|%s|%s|%d|%d|%s|%s|%s|", + tCtx.UserEmail, + "requestId="+tCtx.RequestID, + r.RemoteAddr, + r.Method, + r.URL, + m.Code, + m.Written, + r.UserAgent(), + duration, + "Body:"+string(bodyJsonByte), + ) + } + return fmt.Sprintf("|%s|%s|%s|%d|%d|%s|%s|%s|", + r.RemoteAddr, + r.Method, + r.URL, + m.Code, + m.Written, + r.UserAgent(), + duration, + "Body:"+string(rawBody), + ) + +} + +func createContext(next http.HandlerFunc) http.HandlerFunc { + return func(w http.ResponseWriter, r *http.Request) { + header := r.Header + ctx := r.Context() + reqID := header.Get(requestID) + if reqID == "" { + reqID = strings.ReplaceAll(uuid.NewString(), "-", "") + } + email, app := header.Get(userEmail), header.Get(application) + locale := header.Get(locale) + + tempCtx := appcontext.AppExtContext{ + RequestID: reqID, + UserEmail: email, + Locale: locale, + Application: app, + } + + ctx = appcontext.WithAppCtx(ctx, tempCtx) + next.ServeHTTP(w, r.WithContext(ctx)) + } +} diff --git a/core/appserver/routedef.go b/core/appserver/routedef.go new file mode 100644 index 0000000..03457ca --- /dev/null +++ b/core/appserver/routedef.go @@ -0,0 +1,19 @@ +package appserver + +import "net/http" + +func (s *server) AddNoAuthRoutes(methodName string, methodType string, mRoute string, handlerFunc http.HandlerFunc) { + r := route{ + Name: methodName, + Method: methodType, + Pattern: mRoute, + HandlerFunc: useMiddleware(handlerFunc, recovery, enableCompression, logRequest, createContext)} + s.routes = append(s.routes, r) +} + +func useMiddleware(h http.HandlerFunc, middleware ...func(http.HandlerFunc) http.HandlerFunc) http.HandlerFunc { + for _, m := range middleware { + h = m(h) + } + return h +} diff --git a/core/appserver/server.go b/core/appserver/server.go new file mode 100644 index 0000000..ef0c3d5 --- /dev/null +++ b/core/appserver/server.go @@ -0,0 +1,40 @@ +package appserver + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "net/http" +) + +type route struct { + Name string + Method string + Pattern string + Modules []string + ResourcesPermissionMap interface{} + HandlerFunc http.HandlerFunc +} + +type server struct { + port string + subRoute string + routes []route +} + +const ( + requestID = "requestId" + userEmail = "email" + application = "application" + locale = "locale" +) + +type AppServer interface { + Start(ctx appcontext.AppContext) + AddNoAuthRoutes(methodName string, methodType string, mRoute string, handlerFunc http.HandlerFunc) +} + +func NewAppServer(port, subRoute string) AppServer { + return &server{ + port: port, + subRoute: subRoute, + } +} diff --git a/core/log/log.go b/core/log/log.go new file mode 100644 index 0000000..7fe1dac --- /dev/null +++ b/core/log/log.go @@ -0,0 +1,260 @@ +package log + +import ( + "encoding/json" + "fmt" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "io" + "log" + "os" + "strings" +) + +const ( + //INFO level 1 + INFO = iota + //HTTP level 2 + HTTP + //ERROR level 3 + ERROR + //TRACE level 4 + TRACE + //WARNING level 5 + WARNING +) + +var ( + setLevel = WARNING + trace *log.Logger + info *log.Logger + warning *log.Logger + httplog *log.Logger + errorlog *log.Logger +) + +const ( + clusterType = "CLUSTER_TYPE" + clusterTypeLocal = "local" + clusterTypeDev = "dev1" +) + +// FieldsMap map of key value pair to log +type FieldsMap map[string]interface{} + +func init() { + logInit(os.Stdout, + os.Stdout, + os.Stdout, + os.Stdout, + os.Stderr) +} + +func logInit(traceHandle, infoHandle, warningHandle, httpHandle, errorHandle io.Writer) { + + flagWithClusterType := log.LUTC | log.LstdFlags | log.Lshortfile + flagWithoutClusterType := log.LUTC | log.LstdFlags + + var flag int + + if os.Getenv(clusterType) == clusterTypeLocal || os.Getenv(clusterType) == clusterTypeDev { + flag = flagWithClusterType + } else { + flag = flagWithoutClusterType + } + + trace = log.New(traceHandle, "TRACE|", flag) + + info = log.New(infoHandle, "INFO|", flag) + + warning = log.New(warningHandle, "WARNING|", flag) + + httplog = log.New(httpHandle, "HTTP|", flag) + + errorlog = log.New(errorHandle, "ERROR|", flagWithClusterType) +} + +func doLog(cLog *log.Logger, level, callDepth int, v ...interface{}) { + if level <= setLevel { + if level == ERROR { + cLog.SetOutput(os.Stderr) + cLog.SetFlags(log.Llongfile) + } + cLog.Output(callDepth, fmt.Sprintln(v...)) + } +} + +func generatePrefix(ctx appcontext.AppContext) string { + // TODO: Add departmentName once that is implemented fully + return strings.Join([]string{ctx.UserEmail}, ":") +} + +func generateTrackingIDs(ctx appcontext.AppContext) (retString string) { + requestID := ctx.RequestID + + if requestID != "" { + retString = "requestId=" + requestID + } + + return +} + +// Trace system gives facility to helps you isolate your system problems by monitoring selected events Ex. entry and exit +func traceLog(v ...interface{}) { + doLog(trace, TRACE, 4, v...) +} + +// Info dedicated for logging valuable information +func infoLog(v ...interface{}) { + doLog(info, INFO, 4, v...) +} + +// Warning for critical error +func warningLog(v ...interface{}) { + doLog(warning, WARNING, 4, v...) +} + +// Error logging error +func errorLog(v ...interface{}) { + doLog(errorlog, ERROR, 4, v...) +} + +func fatalLog(v ...interface{}) { + doLog(errorlog, ERROR, 4, v...) + os.Exit(1) +} + +func HTTPLog(logMessage string) { + doLog(httplog, HTTP, 6, logMessage) +} + +func GenericTrace(ctx appcontext.AppContext, traceMessage string, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + if os.Getenv("SERVICE_TRACE") == "true" { + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + msg := fmt.Sprintf("|%s|%s|", + prefix, + trackingIDs) + if fields != nil && len(fields) > 0 { + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + traceLog(msg, traceMessage, "|", fieldsString) + } else { + traceLog(msg, traceMessage) + } + } +} + +func GenericInfo(ctx appcontext.AppContext, infoMessage string, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + msg := fmt.Sprintf("|%s|%s|", + prefix, + trackingIDs) + if fields != nil && len(fields) > 0 { + infoLog(msg, infoMessage, "|", fieldsString) + } else { + infoLog(msg, infoMessage) + } + +} + +func GenericWarning(ctx appcontext.AppContext, warnMessage string, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + if os.Getenv("SERVICE_WARN") == "true" { + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + msg := fmt.Sprintf("|%s|%s|", + prefix, + trackingIDs) + if fields != nil && len(fields) > 0 { + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + warningLog(msg, warnMessage, "|", fieldsString) + } else { + warningLog(msg, warnMessage) + } + } +} + +func GenericError(ctx appcontext.AppContext, e error, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + msg := "" + if e != nil { + msg = fmt.Sprintf("|%s|%s|%s", prefix, trackingIDs, e.Error()) + } else { + msg = fmt.Sprintf("|%s|%s", prefix, trackingIDs) + } + + if fields != nil && len(fields) > 0 { + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + errorLog(msg, "|", fieldsString) + } else { + errorLog(msg) + } +} + +func CriticalError(ctx appcontext.AppContext, e error, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + msg := "" + if e != nil { + msg = fmt.Sprintf("|%s|%s|%s", prefix, trackingIDs, e.Error()) + } else { + msg = fmt.Sprintf("|%s|%s", prefix, trackingIDs) + } + + if fields != nil && len(fields) > 0 { + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + errorLog(msg, "|", fieldsString) + } else { + errorLog(msg) + } +} + +func FatalLog(ctx appcontext.AppContext, e error, data ...FieldsMap) { + var fields FieldsMap + if len(data) > 0 { + fields = data[0] + } + prefix := generatePrefix(ctx) + trackingIDs := generateTrackingIDs(ctx) + + msg := "" + if e != nil { + msg = fmt.Sprintf("|%s|%s|%s", prefix, trackingIDs, e.Error()) + } else { + msg = fmt.Sprintf("|%s|%s", prefix, trackingIDs) + } + + if fields != nil && len(fields) > 0 { + fieldsBytes, _ := json.Marshal(fields) + fieldsString := string(fieldsBytes) + fatalLog(msg, "|", fieldsString) + } else { + fatalLog(msg) + } +} diff --git a/core/mongomanager/connections.go b/core/mongomanager/connections.go new file mode 100644 index 0000000..bd0551b --- /dev/null +++ b/core/mongomanager/connections.go @@ -0,0 +1,239 @@ +package mongomanager + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "go.mongodb.org/mongo-driver/mongo" + "go.mongodb.org/mongo-driver/mongo/options" +) + +func (client *mongoService) Disconnect(ctx appcontext.AppContext) error { + return client.DB.Disconnect(ctx) +} + +func (client *mongoService) CreateOne(ctx appcontext.AppContext, database, collectionName string, d interface{}) (*mongo.InsertOneResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + insertOneResult, err := collection.InsertOne(ctx.Context, d) + if err != nil { + return nil, err + } + + return insertOneResult, nil +} + +// CreateMany - inserts many data into mongo database +func (client *mongoService) CreateMany(ctx appcontext.AppContext, database, collectionName string, d []interface{}) (*mongo.InsertManyResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + insertManyRslt, err := collection.InsertMany(ctx.Context, d) + if err != nil { + return nil, err + } + return insertManyRslt, nil +} + +// ReadOne - reads single document from mongo database +func (client *mongoService) ReadOne(ctx appcontext.AppContext, database, collectionName string, filter, data interface{}) error { + collection := client.DB.Database(database).Collection(collectionName) + err := collection.FindOne(ctx.Context, filter).Decode(data) + if err != nil { + return err + } + + return nil +} + +// ReadAll - reads multiple documents from mongo database +func (client *mongoService) ReadAll(ctx appcontext.AppContext, database, collectionName string, filter, data interface{}, opts ...*options.FindOptions) error { + var findOptions *options.FindOptions + if len(opts) > 0 { + findOptions = opts[0] + } + + collection := client.DB.Database(database).Collection(collectionName) + cursor, err := collection.Find(ctx.Context, filter, findOptions) + if err != nil { + return err + } + defer cursor.Close(ctx.Context) + + err = cursor.All(ctx.Context, data) + if err != nil { + return err + } + + return nil +} + +// Update - updates data into mongo database +func (client *mongoService) Update(ctx appcontext.AppContext, database, collectionName string, filter, update interface{}, options ...*options.UpdateOptions) (*mongo.UpdateResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + updateResult, err := collection.UpdateOne(ctx.Context, filter, update, options...) + if err != nil { + return nil, err + } + + return updateResult, nil +} + +// ReplaceOne - replace one document into mongo database +func (client *mongoService) ReplaceOne(ctx appcontext.AppContext, database, collectionName string, filter, replacement interface{}, opts ...*options.ReplaceOptions) (*mongo.UpdateResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + updateResult, err := collection.ReplaceOne(ctx.Context, filter, replacement, opts...) + if err != nil { + return nil, err + } + + return updateResult, nil +} + +// UpdateAndReturn - updates data into mongo database and returns the updated document +func (client *mongoService) UpdateAndReturn(ctx appcontext.AppContext, database, collectionName string, filter, update, data interface{}) error { + collection := client.DB.Database(database).Collection(collectionName) + after := options.After + + opts := options.FindOneAndUpdateOptions{ + ReturnDocument: &after, + } + + err := collection.FindOneAndUpdate(ctx.Context, filter, update, &opts).Decode(data) + if err != nil { + return err + } + + return nil +} + +// UpdateAll - updates multiple documents into mongo database +func (client *mongoService) UpdateAll(ctx appcontext.AppContext, database, collectionName string, filter, update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + updateResult, err := collection.UpdateMany(ctx.Context, filter, update, opts...) + if err != nil { + return nil, err + } + + return updateResult, nil +} + +func (client *mongoService) Upsert(ctx appcontext.AppContext, database, collectionName string, filter, + update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + updateOptions := options.Update() + if len(opts) >= 1 { + updateOptions = opts[0] + } + updateOptions.SetUpsert(true) + updateResult, err := collection.UpdateOne(ctx.Context, filter, update, updateOptions) + if err != nil { + return nil, err + } + + return updateResult, nil +} + +// Delete - removes single doc data from the database +func (client *mongoService) Delete(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (*mongo.DeleteResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + deleteResult, err := collection.DeleteOne(ctx.Context, filter) + + if err != nil { + return nil, err + } + + return deleteResult, nil +} + +// DeleteAll - removes all doc data from the database +func (client *mongoService) DeleteAll(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (*mongo.DeleteResult, error) { + collection := client.DB.Database(database).Collection(collectionName) + deleteResult, err := collection.DeleteMany(ctx.Context, filter) + if err != nil { + return nil, err + } + + return deleteResult, nil +} + +// CountDocuments returns document count of a collection +func (client *mongoService) CountDocuments(ctx appcontext.AppContext, database, collectionName string, filter interface{}, opts ...*options.CountOptions) (int64, error) { + var countOptions *options.CountOptions + if len(opts) > 0 { + countOptions = opts[0] + } + + collection := client.DB.Database(database).Collection(collectionName) + count, err := collection.CountDocuments(ctx.Context, filter, countOptions) + if err != nil { + return 0, err + } + + return count, nil +} + +// Exist verifies if document is present or not +// if it returns error then there is a connection error else boolean value specifies whether doc is present or not +func (client *mongoService) Exist(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (bool, error) { + var i interface{} + collection := client.DB.Database(database).Collection(collectionName) + err := collection.FindOne(ctx.Context, filter).Decode(&i) + if err != nil { + return false, nil + } + + return true, nil +} + +// GetDistinct gets the distinct values for the field name provided +func (client *mongoService) GetDistinct(ctx appcontext.AppContext, database, collectionName, fieldName string, filter interface{}) (interface{}, error) { + collection := client.DB.Database(database).Collection(collectionName) + result, err := collection.Distinct(ctx.Context, fieldName, filter, nil) + if err != nil { + return nil, err + } + return result, nil +} + +// AggregateAll executes aggregation query on a collection +// query []bson.M, data is a pointer to an array +func (client *mongoService) AggregateAll(ctx appcontext.AppContext, database, collectionName string, query, data interface{}, options ...*options.AggregateOptions) error { + collection := client.DB.Database(database).Collection(collectionName) + cursor, err := collection.Aggregate(ctx.Context, query, options...) + if err != nil { + return err + } + err = cursor.All(ctx.Context, data) + return err +} + +// FindOneAndUpdate executes a findAndModify command to update at most one document in the collection and returns the +// document as it appeared before updating. +func (client *mongoService) FindOneAndUpdate(ctx appcontext.AppContext, database, collectionName string, filter, update, data interface{}, + opts ...*options.FindOneAndUpdateOptions) error { + after := options.After + option := &options.FindOneAndUpdateOptions{ + ReturnDocument: &after, + } + if len(opts) > 0 { + option = opts[0] + } + collection := client.DB.Database(database).Collection(collectionName) + result := collection.FindOneAndUpdate(ctx.Context, filter, update, option) + if result.Err() != nil { + return result.Err() + } + + decodeErr := result.Decode(data) + if decodeErr != nil { + return decodeErr + } + return nil +} + +func (client *mongoService) BulkWrite(ctx appcontext.AppContext, database, collectionName string, operations []mongo.WriteModel, bulkOption *options.BulkWriteOptions) (*mongo.BulkWriteResult, error) { + var err error + collection := client.DB.Database(database).Collection(collectionName) + result, err := collection.BulkWrite(ctx.Context, operations, bulkOption) + if err != nil { + return nil, err + } + return result, nil + +} diff --git a/core/mongomanager/mongomanager.go b/core/mongomanager/mongomanager.go new file mode 100644 index 0000000..9c00d32 --- /dev/null +++ b/core/mongomanager/mongomanager.go @@ -0,0 +1,89 @@ +package mongomanager + +import ( + "context" + "errors" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "go.mongodb.org/mongo-driver/mongo" + "go.mongodb.org/mongo-driver/mongo/options" + "time" +) + +type mongoService struct { + DB *mongo.Client +} + +type MongoDB interface { + Disconnect(ctx appcontext.AppContext) error + CreateOne(ctx appcontext.AppContext, database, collectionName string, d interface{}) (*mongo.InsertOneResult, error) + CreateMany(ctx appcontext.AppContext, database, collectionName string, d []interface{}) (*mongo.InsertManyResult, error) + ReadOne(ctx appcontext.AppContext, database, collectionName string, filter, data interface{}) error + ReadAll(ctx appcontext.AppContext, database, collectionName string, filter, data interface{}, opts ...*options.FindOptions) error + Update(ctx appcontext.AppContext, database, collectionName string, filter, update interface{}, options ...*options.UpdateOptions) (*mongo.UpdateResult, error) + ReplaceOne(ctx appcontext.AppContext, database, collectionName string, filter, replacement interface{}, opts ...*options.ReplaceOptions) (*mongo.UpdateResult, error) + Upsert(ctx appcontext.AppContext, database, collectionName string, filter, update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error) + UpdateAndReturn(ctx appcontext.AppContext, database, collectionName string, filter, update, data interface{}) error + UpdateAll(ctx appcontext.AppContext, database, collectionName string, filter, update interface{}, opts ...*options.UpdateOptions) (*mongo.UpdateResult, error) + Delete(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (*mongo.DeleteResult, error) + DeleteAll(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (*mongo.DeleteResult, error) + CountDocuments(ctx appcontext.AppContext, database, collectionName string, filter interface{}, opts ...*options.CountOptions) (int64, error) + Exist(ctx appcontext.AppContext, database, collectionName string, filter interface{}) (bool, error) + GetDistinct(ctx appcontext.AppContext, database, collectionName, fieldName string, filter interface{}) (interface{}, error) + AggregateAll(ctx appcontext.AppContext, database, collectionName string, query, data interface{}, options ...*options.AggregateOptions) error + FindOneAndUpdate(ctx appcontext.AppContext, database, collectionName string, filter, update, data interface{}, opts ...*options.FindOneAndUpdateOptions) error + BulkWrite(ctx appcontext.AppContext, database, collectionName string, operations []mongo.WriteModel, bulkOption *options.BulkWriteOptions) (*mongo.BulkWriteResult, error) +} + +func NewMongoClient(url, appName string) (MongoDB, error) { + ctx := appcontext.NewAppContext() + client, err := connect(url, appName) + if err != nil { + log.GenericError(ctx, errors.New("can't connect to db: "+err.Error()), nil) + return &mongoService{DB: client}, err + } + return &mongoService{DB: client}, nil +} + +func connect(host, appName string) (*mongo.Client, error) { + var client *mongo.Client + + servSelecTimeout := time.Duration(15) * time.Second + connTimeout := time.Duration(10) * time.Second + idleTime := time.Duration(2) * time.Minute + socketTimeout := time.Duration(2) * time.Minute + maxPooling := uint64(100) + + clientOptions := &options.ClientOptions{ + AppName: &appName, + ServerSelectionTimeout: &servSelecTimeout, + ConnectTimeout: &connTimeout, + MaxConnIdleTime: &idleTime, + MaxPoolSize: &maxPooling, + SocketTimeout: &socketTimeout, + } + + clientOptions = clientOptions.ApplyURI(host) + + err := clientOptions.Validate() + if err != nil { + return client, err + } + + client, err = mongo.NewClient(clientOptions) + if err != nil { + return client, err + } + + err = client.Connect(context.TODO()) + if err != nil { + return client, err + } + + err = client.Ping(context.TODO(), nil) + if err != nil { + return client, err + } + + return client, nil +} diff --git a/db/db.go b/db/db.go new file mode 100644 index 0000000..fd66a4e --- /dev/null +++ b/db/db.go @@ -0,0 +1,5 @@ +package db + +type Databases interface { + Movies +} diff --git a/db/mongo/const.go b/db/mongo/const.go new file mode 100644 index 0000000..4c79c51 --- /dev/null +++ b/db/mongo/const.go @@ -0,0 +1,6 @@ +package mongo + +const ( + obdDatabase = "global" + movieCollection = "movies" +) diff --git a/db/mongo/mongo.go b/db/mongo/mongo.go new file mode 100644 index 0000000..1db62b6 --- /dev/null +++ b/db/mongo/mongo.go @@ -0,0 +1,18 @@ +package mongo + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/mongomanager" + "gitlab.com/arkadooti.sarkar/go-boilerplate/db" +) + +var _ db.Databases = (*ServicesMongo)(nil) + +type ServicesMongo struct { + Db mongomanager.MongoDB +} + +func NewMongoService(mongoClient mongomanager.MongoDB) db.Databases { + return &ServicesMongo{ + Db: mongoClient, + } +} diff --git a/db/mongo/movieDetails.go b/db/mongo/movieDetails.go new file mode 100644 index 0000000..9d27752 --- /dev/null +++ b/db/mongo/movieDetails.go @@ -0,0 +1,28 @@ +package mongo + +import ( + "errors" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "gitlab.com/arkadooti.sarkar/go-boilerplate/models" + "go.mongodb.org/mongo-driver/bson" +) + +func (s *ServicesMongo) GetMovieDetails(ctx appcontext.AppContext, movieName string) (models.MovieDetails, error) { + details := models.MovieDetails{} + b := bson.M{"title": bson.M{"$regex": movieName, "$options": "i"}} + err := s.Db.ReadOne(ctx, obdDatabase, movieCollection, b, &details) + if err != nil { + log.GenericError(ctx, errors.New("GetMovieDetails DB error: "+err.Error()), log.FieldsMap{"title": movieName}) + return models.MovieDetails{}, err + } + return details, nil +} +func (s *ServicesMongo) SetMovieDetails(ctx appcontext.AppContext, movieDetails models.MovieDetails) error { + _, err := s.Db.CreateOne(ctx, obdDatabase, movieCollection, movieDetails) + if err != nil { + log.GenericError(ctx, errors.New("SetMovieDetails DB error: "+err.Error())) + return err + } + return nil +} diff --git a/db/movies.go b/db/movies.go new file mode 100644 index 0000000..7dc5eac --- /dev/null +++ b/db/movies.go @@ -0,0 +1,11 @@ +package db + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/models" +) + +type Movies interface { + GetMovieDetails(ctx appcontext.AppContext, movieName string) (models.MovieDetails, error) + SetMovieDetails(ctx appcontext.AppContext, movieDetails models.MovieDetails) error +} diff --git a/domain/domain.go b/domain/domain.go new file mode 100644 index 0000000..503c74f --- /dev/null +++ b/domain/domain.go @@ -0,0 +1,5 @@ +package domain + +type Domain interface { + Movies +} diff --git a/domain/movies.go b/domain/movies.go new file mode 100644 index 0000000..497a7b6 --- /dev/null +++ b/domain/movies.go @@ -0,0 +1,10 @@ +package domain + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/models" +) + +type Movies interface { + GetMovieDetailsFromApi(ctx appcontext.AppContext, movieName string) (models.MovieDetails, error) +} diff --git a/domain/standard/movieDetails.go b/domain/standard/movieDetails.go new file mode 100644 index 0000000..484d1f0 --- /dev/null +++ b/domain/standard/movieDetails.go @@ -0,0 +1,21 @@ +package standard + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/models" + "gitlab.com/arkadooti.sarkar/go-boilerplate/utils" +) + +func (s *Standard) GetMovieDetailsFromApi(ctx appcontext.AppContext, movieName string) (models.MovieDetails, error) { + + apiParam := utils.ApiParam{ + Url: "http://www.omdbapi.com/?apikey=d2bd086", + Query: map[string]string{"t": movieName}, + } + movieDetails := models.MovieDetails{} + err := apiParam.CallAPI(ctx, &movieDetails) + if err != nil { + return models.MovieDetails{}, err + } + return movieDetails, nil +} diff --git a/domain/standard/standard.go b/domain/standard/standard.go new file mode 100644 index 0000000..b1a3fe6 --- /dev/null +++ b/domain/standard/standard.go @@ -0,0 +1,13 @@ +package standard + +import "gitlab.com/arkadooti.sarkar/go-boilerplate/db" + +type Standard struct { + DbMongo db.Databases +} + +func NewDomainService(mongo db.Databases) *Standard { + return &Standard{ + DbMongo: mongo, + } +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..195f768 --- /dev/null +++ b/go.mod @@ -0,0 +1,45 @@ +module gitlab.com/arkadooti.sarkar/go-boilerplate + +go 1.18 + +require ( + github.com/google/uuid v1.4.0 + github.com/gorilla/context v1.1.2 + github.com/gorilla/handlers v1.5.2 + github.com/gorilla/mux v1.8.1 + go.elastic.co/apm v1.15.0 + go.elastic.co/apm/module/apmgorilla v1.15.0 + go.elastic.co/apm/module/apmhttp v1.15.0 +) + +require ( + github.com/andybalholm/brotli v1.0.6 // indirect + github.com/armon/go-radix v1.0.0 // indirect + github.com/elastic/go-licenser v0.3.1 // indirect + github.com/elastic/go-sysinfo v1.1.1 // indirect + github.com/elastic/go-windows v1.0.0 // indirect + github.com/felixge/httpsnoop v1.0.3 // indirect + github.com/golang/snappy v0.0.1 // indirect + github.com/jcchavezs/porto v0.1.0 // indirect + github.com/joeshaw/multierror v0.0.0-20140124173710-69b34d4ec901 // indirect + github.com/klauspost/compress v1.13.6 // indirect + github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect + github.com/pkg/errors v0.8.1 // indirect + github.com/prometheus/procfs v0.0.0-20190425082905-87a4384529e0 // indirect + github.com/santhosh-tekuri/jsonschema v1.2.4 // indirect + github.com/xdg-go/pbkdf2 v1.0.0 // indirect + github.com/xdg-go/scram v1.1.2 // indirect + github.com/xdg-go/stringprep v1.0.4 // indirect + github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect + go.elastic.co/fastjson v1.1.0 // indirect + go.mongodb.org/mongo-driver v1.13.1 // indirect + golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect + golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5 // indirect + golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect + golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect + golang.org/x/sys v0.15.0 // indirect + golang.org/x/text v0.7.0 // indirect + golang.org/x/tools v0.1.12 // indirect + golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 // indirect + howett.net/plist v0.0.0-20181124034731-591f970eefbb // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..8515002 --- /dev/null +++ b/go.sum @@ -0,0 +1,144 @@ +github.com/andybalholm/brotli v1.0.6 h1:Yf9fFpf49Zrxb9NlQaluyE92/+X7UVHlhMNJN2sxfOI= +github.com/andybalholm/brotli v1.0.6/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig= +github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI= +github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8= +github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/elastic/go-licenser v0.3.1 h1:RmRukU/JUmts+rpexAw0Fvt2ly7VVu6mw8z4HrEzObU= +github.com/elastic/go-licenser v0.3.1/go.mod h1:D8eNQk70FOCVBl3smCGQt/lv7meBeQno2eI1S5apiHQ= +github.com/elastic/go-sysinfo v1.1.1 h1:ZVlaLDyhVkDfjwPGU55CQRCRolNpc7P0BbyhhQZQmMI= +github.com/elastic/go-sysinfo v1.1.1/go.mod h1:i1ZYdU10oLNfRzq4vq62BEwD2fH8KaWh6eh0ikPT9F0= +github.com/elastic/go-windows v1.0.0 h1:qLURgZFkkrYyTTkvYpsZIgf83AUsdIHfvlJaqaZ7aSY= +github.com/elastic/go-windows v1.0.0/go.mod h1:TsU0Nrp7/y3+VwE82FoZF8gC/XFg/Elz6CcloAxnPgU= +github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBdXk= +github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= +github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4= +github.com/golang/snappy 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v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +howett.net/plist v0.0.0-20181124034731-591f970eefbb h1:jhnBjNi9UFpfpl8YZhA9CrOqpnJdvzuiHsl/dnxl11M= +howett.net/plist v0.0.0-20181124034731-591f970eefbb/go.mod h1:vMygbs4qMhSZSc4lCUl2OEE+rDiIIJAIdR4m7MiMcm0= diff --git a/main.go b/main.go new file mode 100644 index 0000000..b9c0e43 --- /dev/null +++ b/main.go @@ -0,0 +1,31 @@ +package main + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/mongomanager" + "gitlab.com/arkadooti.sarkar/go-boilerplate/db/mongo" + "gitlab.com/arkadooti.sarkar/go-boilerplate/domain/standard" + "gitlab.com/arkadooti.sarkar/go-boilerplate/webService" + "os" +) + +const servicePort = "4100" +const serviceRoute = "/boilerplate" + +func main() { + ctx := appcontext.New() + + mongoClient, err := mongomanager.NewMongoClient(os.Getenv("MongoHost"), "myapp") + if err != nil { + log.GenericError(ctx, err) + } + + mongoService := mongo.NewMongoService(mongoClient) + + domain := standard.NewDomainService(mongoService) + + newService := webService.NewWebService(domain, mongoService, serviceRoute, servicePort) + + newService.Run(ctx) +} diff --git a/models/common.go b/models/common.go new file mode 100644 index 0000000..d6f53e2 --- /dev/null +++ b/models/common.go @@ -0,0 +1,5 @@ +package models + +type Ping struct { + Ping string `json:"ping"` +} diff --git a/models/movies.go b/models/movies.go new file mode 100644 index 0000000..87c124b --- /dev/null +++ b/models/movies.go @@ -0,0 +1,34 @@ +package models + +type MovieDetails struct { + Title string `json:"Title" bson:"title"` + Year string `json:"Year" bson:"year"` + Rated string `json:"Rated" bson:"rated"` + Released string `json:"Released" bson:"released"` + Runtime string `json:"Runtime" bson:"runtime"` + Genre string `json:"Genre" bson:"genre"` + Director string `json:"Director" bson:"director"` + Writer string `json:"Writer" bson:"writer"` + Actors string `json:"Actors" bson:"actors"` + Plot string `json:"Plot" bson:"plot"` + Language string `json:"Language" bson:"language"` + Country string `json:"Country" bson:"country"` + Awards string `json:"Awards" bson:"awards"` + Poster string `json:"Poster" bson:"poster"` + Ratings []MovieDetailsRating `json:"Ratings" bson:"ratings"` + Metascore string `json:"Metascore" bson:"metascore"` + ImdbRating string `json:"imdbRating" bson:"imdbRating"` + ImdbVotes string `json:"imdbVotes" bson:"imdbVotes"` + ImdbID string `json:"imdbID" bson:"imdbID"` + Type string `json:"Type" bson:"type"` + DVD string `json:"DVD" bson:"DVD"` + BoxOffice string `json:"BoxOffice" bson:"boxOffice"` + Production string `json:"Production" bson:"production"` + Website string `json:"Website" bson:"website"` + Response string `json:"Response" bson:"response"` +} + +type MovieDetailsRating struct { + Source string `json:"Source" bson:"source"` + Value string `json:"Value" bson:"value"` +} diff --git a/utils/apiUtils.go b/utils/apiUtils.go new file mode 100644 index 0000000..dd5711b --- /dev/null +++ b/utils/apiUtils.go @@ -0,0 +1,168 @@ +package utils + +import ( + "bytes" + "crypto/tls" + "encoding/json" + "fmt" + "github.com/pkg/errors" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "io" + "io/ioutil" + "net/http" + "net/url" + "time" +) + +const ( + RequestID = "requestId" +) + +var Client HTTPClient + +// HTTPClient interface +type HTTPClient interface { + Do(req *http.Request) (*http.Response, error) +} + +func init() { + Client = &http.Client{ + Transport: &http.Transport{ + DisableKeepAlives: true, + TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, + }, + Timeout: time.Duration(35) * time.Second, + } +} + +// ApiParam api parameters +type ApiParam struct { + Url string + Type string + Query map[string]string + Headers map[string]string + Body io.Reader +} + +type responseMetaData struct { //to-do: it must be renamed to a generic response struct + Code int `json:"code,omitempty"` + Message string `json:"message"` +} + +func (apiParam *ApiParam) CallAPI(ctx appcontext.AppContext, dst interface{}) error { + reqMethod := "GET" + if apiParam.Type != "" { + reqMethod = apiParam.Type + } + + if apiParam.Url == "" { + return errors.New("unable to make request, url is missing") + } + + u, err := url.Parse(apiParam.Url) + if err != nil { + return err + } + q := u.Query() + for key, val := range apiParam.Query { + q.Set(key, fmt.Sprintf("%v", val)) + } + u.RawQuery = q.Encode() + + req, err := http.NewRequest(reqMethod, u.String(), apiParam.Body) + if req != nil { + _, reqIDFound := apiParam.Headers[RequestID] + if !reqIDFound { + req.Header.Set(RequestID, ctx.RequestID) + } + for headerKey, headerVal := range apiParam.Headers { + req.Header.Set(headerKey, headerVal) + } + } + resp, err := Client.Do(req) + if resp != nil { + defer func(Body io.ReadCloser) { + err := Body.Close() + if err != nil { + log.GenericError(ctx, err, nil) + } + }(resp.Body) + } + if err != nil { + return err + } + + if resp.StatusCode >= 200 && resp.StatusCode < 300 { + if dst != nil { + err = json.NewDecoder(resp.Body).Decode(dst) + if err != nil { + return errors.WithMessage(err, "failed to decode response\",") + } + } + _, err := io.Copy(ioutil.Discard, resp.Body) + if err != nil { + log.GenericError(ctx, err, nil) + } + return nil + } + + bodyError := fmt.Errorf("unable to make request, error in statusCode: " + resp.Status) + if resp.Body != nil { + body, _ := ioutil.ReadAll(resp.Body) + bodyError = errors.New(string(body)) + } + return bodyError +} + +func ReturnResponse(ctx appcontext.AppContext, w http.ResponseWriter, statusCode int, response interface{}) { + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(statusCode) + var buf = new(bytes.Buffer) + enc := json.NewEncoder(buf) + err := enc.Encode(response) + if err != nil { + log.GenericError(ctx, err) + } + _, err = w.Write(buf.Bytes()) + if err != nil { + log.GenericError(ctx, err) + } +} + +func ReturnOKResponse(ctx appcontext.AppContext, w http.ResponseWriter, response interface{}) { + w.Header().Set("Content-Type", "application/json") + w.WriteHeader(http.StatusOK) + var buf = new(bytes.Buffer) + enc := json.NewEncoder(buf) + err := enc.Encode(response) + if err != nil { + log.GenericError(ctx, err) + } + _, err = w.Write(buf.Bytes()) + if err != nil { + log.GenericError(ctx, err) + } +} + +func ReturnErrorResponse(ctx appcontext.AppContext, w http.ResponseWriter, responseErrorMessage string, statusCode int, logError error, fields ...log.FieldsMap) { + var buf = new(bytes.Buffer) + encoder := json.NewEncoder(buf) + if logError != nil { + if len(fields) > 0 { + log.GenericError(ctx, logError, fields[0]) + } else { + log.GenericError(ctx, logError, nil) + } + + } + err := encoder.Encode(responseMetaData{Message: responseErrorMessage}) + if err != nil { + log.GenericError(ctx, err) + } + w.WriteHeader(statusCode) + _, err = w.Write(buf.Bytes()) + if err != nil { + log.GenericError(ctx, err) + } +} diff --git a/utils/helpers.go b/utils/helpers.go new file mode 100644 index 0000000..d4b585b --- /dev/null +++ b/utils/helpers.go @@ -0,0 +1 @@ +package utils diff --git a/webService/movies.go b/webService/movies.go new file mode 100644 index 0000000..59510dc --- /dev/null +++ b/webService/movies.go @@ -0,0 +1,46 @@ +package webService + +import ( + "errors" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/log" + "gitlab.com/arkadooti.sarkar/go-boilerplate/utils" + "net/http" +) + +func (s *WebService) MovieDetails(w http.ResponseWriter, r *http.Request) { + ctx := appcontext.UpgradeCtx(r.Context()) + + movieName := r.URL.Query().Get("name") + + details, err := s.DB.GetMovieDetails(ctx, movieName) + if err != nil { + log.GenericError(ctx, errors.New("not able to get movies from DB:"+err.Error())) + } + + if details.Title != "" { + log.GenericInfo(ctx, "Sending response from DB") + utils.ReturnOKResponse(ctx, w, details) + return + } + + details, err = s.Domain.GetMovieDetailsFromApi(ctx, movieName) + if err != nil { + utils.ReturnErrorResponse(ctx, w, "Invalid request or IMDB error", http.StatusBadRequest, err) + return + } + + if details.Title == "" { + utils.ReturnErrorResponse(ctx, w, "No movie found with the title: "+movieName, http.StatusBadRequest, err) + return + } + + if details.Title != "" { + err = s.DB.SetMovieDetails(ctx, details) + if err != nil { + log.GenericError(ctx, errors.New("not able to insert into DB: "+err.Error())) + } + } + log.GenericInfo(ctx, "Sending response from API endpoint") + utils.ReturnOKResponse(ctx, w, details) +} diff --git a/webService/ping.go b/webService/ping.go new file mode 100644 index 0000000..88769a0 --- /dev/null +++ b/webService/ping.go @@ -0,0 +1,10 @@ +package webService + +import ( + "fmt" + "net/http" +) + +func (s *WebService) Ping(w http.ResponseWriter, r *http.Request) { + _, _ = fmt.Fprintf(w, "alive") +} diff --git a/webService/routes.go b/webService/routes.go new file mode 100644 index 0000000..b8992e6 --- /dev/null +++ b/webService/routes.go @@ -0,0 +1,18 @@ +package webService + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appcontext" + "net/http" +) + +func (s *WebService) Run(ctx appcontext.AppContext) { + s.registerPublicApis() + s.server.Start(ctx) +} + +func (s *WebService) registerPublicApis() { + s.server.AddNoAuthRoutes("Ping", http.MethodGet, "/public/ping", s.Ping) + + //Send movie name in query (query key: 'name') + s.server.AddNoAuthRoutes("Ping", http.MethodGet, "/public/movie-details", s.MovieDetails) +} diff --git a/webService/webservice.go b/webService/webservice.go new file mode 100644 index 0000000..3cddf5b --- /dev/null +++ b/webService/webservice.go @@ -0,0 +1,22 @@ +package webService + +import ( + "gitlab.com/arkadooti.sarkar/go-boilerplate/core/appserver" + "gitlab.com/arkadooti.sarkar/go-boilerplate/db" + "gitlab.com/arkadooti.sarkar/go-boilerplate/domain" +) + +type WebService struct { + Domain domain.Domain + DB db.Databases + server appserver.AppServer +} + +func NewWebService(domainService domain.Domain, db db.Databases, serviceRoute, servicePort string) *WebService { + server := appserver.NewAppServer(servicePort, serviceRoute) + return &WebService{ + Domain: domainService, + DB: db, + server: server, + } +}