diff --git a/.golangci.yaml b/.golangci.yaml
index 63205f5..1cc947c 100644
--- a/.golangci.yaml
+++ b/.golangci.yaml
@@ -84,12 +84,12 @@ linters:
     #- gochecknoglobals # check that no global variables exist [fast: true, auto-fix: false]
     #- gochecknoinits # Checks that no init functions are present in Go code [fast: true, auto-fix: false]
     #- gocognit # Computes and checks the cognitive complexity of functions [fast: true, auto-fix: false]
-    - goconst # Finds repeated strings that could be replaced by a constant [fast: true, auto-fix: false]
+    #- goconst # Finds repeated strings that could be replaced by a constant [fast: true, auto-fix: false]
     - gocritic # Provides diagnostics that check for bugs, performance and style issues. [fast: false, auto-fix: false]
     #- gocyclo # Computes and checks the cyclomatic complexity of functions [fast: true, auto-fix: false]
     #- godot # Check if comments end in a period [fast: true, auto-fix: true]
     #- godox # Tool for detection of FIXME, TODO and other comment keywords [fast: true, auto-fix: false]
-    - goerr113 # Golang linter to check the errors handling expressions [fast: false, auto-fix: false]
+    #- goerr113 # Golang linter to check the errors handling expressions [fast: false, auto-fix: false]
     - gofmt # Gofmt checks whether code was gofmt-ed. By default this tool runs with -s option to check for code simplification [fast: true, auto-fix: true]
     #- gofumpt # Gofumpt checks whether code was gofumpt-ed. [fast: true, auto-fix: true]
     - goheader # Checks is file header matches to pattern [fast: true, auto-fix: false]
@@ -106,7 +106,7 @@ linters:
     - maintidx # maintidx measures the maintainability index of each function. [fast: true, auto-fix: false]
     - makezero # Finds slice declarations with non-zero initial length [fast: false, auto-fix: false]
     - misspell # Finds commonly misspelled English words in comments [fast: true, auto-fix: true]
-    - nakedret # Finds naked returns in functions greater than a specified function length [fast: true, auto-fix: false]
+    #- nakedret # Finds naked returns in functions greater than a specified function length [fast: true, auto-fix: false]
     #- nestif # Reports deeply nested if statements [fast: true, auto-fix: false]
     - nilerr # Finds the code that returns nil even if it checks that the error is not nil. [fast: false, auto-fix: false]
     - nilnil # Checks that there is no simultaneous return of `nil` error and an invalid value. [fast: false, auto-fix: false]
@@ -117,7 +117,7 @@ linters:
     - nosnakecase # nosnakecase is a linter that detects snake case of variable naming and function name. [fast: true, auto-fix: false]
     - nosprintfhostport # Checks for misuse of Sprintf to construct a host with port in a URL. [fast: true, auto-fix: false]
     #- paralleltest # paralleltest detects missing usage of t.Parallel() method in your Go test [fast: false, auto-fix: false]
-    - prealloc # Finds slice declarations that could potentially be pre-allocated [fast: true, auto-fix: false]
+    #- prealloc # Finds slice declarations that could potentially be pre-allocated [fast: true, auto-fix: false]
     - predeclared # find code that shadows one of Go's predeclared identifiers [fast: true, auto-fix: false]
     - promlinter # Check Prometheus metrics naming via promlint [fast: true, auto-fix: false]
     - revive # Fast, configurable, extensible, flexible, and beautiful linter for Go. Drop-in replacement of golint. [fast: false, auto-fix: false]
@@ -125,13 +125,13 @@ linters:
     - sqlclosecheck # Checks that sql.Rows and sql.Stmt are closed. [fast: false, auto-fix: false]
     - structcheck # Finds unused struct fields [fast: false, auto-fix: false]
     - stylecheck # Stylecheck is a replacement for golint [fast: false, auto-fix: false]
-    - tagliatelle # Checks the struct tags. [fast: true, auto-fix: false]
+    #- tagliatelle # Checks the struct tags. [fast: true, auto-fix: false]
     - tenv # tenv is analyzer that detects using os.Setenv instead of t.Setenv since Go1.17 [fast: false, auto-fix: false]
-    - testpackage # linter that makes you use a separate _test package [fast: true, auto-fix: false]
+    #- testpackage # linter that makes you use a separate _test package [fast: true, auto-fix: false]
     - thelper # thelper detects golang test helpers without t.Helper() call and checks the consistency of test helpers [fast: false, auto-fix: false]
     - tparallel # tparallel detects inappropriate usage of t.Parallel() method in your Go test codes [fast: false, auto-fix: false]
     - unconvert # Remove unnecessary type conversions [fast: false, auto-fix: false]
-    - unparam # Reports unused function parameters [fast: false, auto-fix: false]
+    #- unparam # Reports unused function parameters [fast: false, auto-fix: false]
     - usestdlibvars # A linter that detect the possibility to use variables/constants from the Go standard library. [fast: true, auto-fix: false]
     #- varnamelen # checks that the length of a variable's name matches its scope [fast: false, auto-fix: false]
     - wastedassign # wastedassign finds wasted assignment statements. [fast: false, auto-fix: false]
diff --git a/Makefile b/Makefile
index 80ad81f..0d1f2c3 100644
--- a/Makefile
+++ b/Makefile
@@ -55,7 +55,7 @@ $(foreach p,$(EXAMPLES),$(eval $(call examples,$(p))))
 ## Run go mod tidy recursive
 .PHONY: lint
 lint:
-	# @golangci-lint run
+	@golangci-lint run
 	@for name in example/*/; do\
 		if [ $$name != "example/node_modules/" ]; then \
 			echo "-------- $${name} ------------";\
@@ -63,6 +63,16 @@ lint:
 		fi \
   done
 
+.PHONY: lint.fix
+lint.fix:
+	@golangci-lint run --fix
+	@for name in example/*/; do\
+		if [ $$name != "example/node_modules/" ]; then \
+			echo "-------- $${name} ------------";\
+			sh -c "cd $$(pwd)/$${name} && golangci-lint run --fix";\
+		fi \
+  done
+
 ## Run go mod tidy recursive
 .PHONY: gomod
 gomod:
diff --git a/build.go b/build.go
index d70ef11..739574c 100644
--- a/build.go
+++ b/build.go
@@ -4,7 +4,6 @@ import (
 	"errors"
 	"fmt"
 	"go/format"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -20,7 +19,7 @@ import (
 func deriveCommonJSMapping(conf *config.Config) {
 	replacer := strings.NewReplacer(".", "_", "/", "_", "-", "_")
 	for _, mapping := range conf.Mappings {
-		mapping.TypeScriptModule = replacer.Replace(mapping.GoPackage) //strings.Replace(strings.Replace(mapping.GoPackage, ".", "_", -1), "/", "_", -1)
+		mapping.TypeScriptModule = replacer.Replace(mapping.GoPackage)
 	}
 }
 
@@ -59,8 +58,7 @@ func getPathForTarget(gomod config.Namespace, goPath string, target *config.Targ
 	}
 }
 
-func Build(conf *config.Config, goPath string) {
-
+func Build(conf *config.Config, goPath string) { //nolint:maintidx
 	deriveCommonJSMapping(conf)
 
 	mappedTypeScript := map[string]map[string]*code{}
@@ -125,7 +123,7 @@ func Build(conf *config.Config, goPath string) {
 
 		pkgName, services, structs, scalars, constantTypes, err := Read(goPaths, conf.Module, packageName, target.Services, missingTypes, missingConstants)
 		if err != nil {
-			_, _ = fmt.Fprintln(os.Stderr, "\t an error occured while trying to understand your code: ", err)
+			_, _ = fmt.Fprintln(os.Stderr, "\t an error occurred while trying to understand your code: ", err)
 			os.Exit(2)
 		}
 
@@ -179,7 +177,7 @@ func Build(conf *config.Config, goPath string) {
 				)
 
 				// write code into file for debugging
-				writeErr := ioutil.WriteFile(filename, []byte(code), 0644)
+				writeErr := os.WriteFile(filename, []byte(code), 0644)
 				if writeErr != nil {
 					_, _ = fmt.Fprintln(os.Stderr, "	could not write go source to file", writeErr)
 					os.Exit(5)
@@ -189,7 +187,7 @@ func Build(conf *config.Config, goPath string) {
 				os.Exit(5)
 			}
 
-			writeErr := ioutil.WriteFile(filename, codeBytes, 0644)
+			writeErr := os.WriteFile(filename, codeBytes, 0644)
 			if writeErr != nil {
 				_, _ = fmt.Fprintln(os.Stderr, "	could not write go source to file", writeErr)
 				os.Exit(5)
@@ -238,9 +236,7 @@ func Build(conf *config.Config, goPath string) {
 
 		_, _ = fmt.Fprintln(os.Stderr, "building structs for go package", goPackage, "to ts module", mapping.TypeScriptModule, "in file", mapping.Out)
 		moduleCode := newCode("	")
-		structIndent := -1
-
-		structIndent = -3
+		structIndent := -3
 
 		commonJSImports(conf, moduleCode, mapping.Out)
 
@@ -251,7 +247,6 @@ func Build(conf *config.Config, goPath string) {
 		}
 		sort.Strings(structNames)
 		for _, structName := range structNames {
-
 			structCode, ok := mappedStructsMap[structName]
 			if ok {
 				moduleCode.app(structCode.ind(structIndent).l("").string())
@@ -264,7 +259,6 @@ func Build(conf *config.Config, goPath string) {
 			_, _ = fmt.Fprintln(os.Stderr, "	failed to update code in", mapping.Out, updateErr)
 		}
 	}
-
 }
 
 func updateCode(file string, code string) error {
@@ -281,10 +275,10 @@ func updateCode(file string, code string) error {
 	if errMkdirAll != nil {
 		return errMkdirAll
 	}
-	oldCode, _ := ioutil.ReadFile(file)
+	oldCode, _ := os.ReadFile(file)
 	if string(oldCode) != code {
 		fmt.Println("	writing file", file)
-		return ioutil.WriteFile(file, []byte(code), 0644)
+		return os.WriteFile(file, []byte(code), 0644)
 	}
 	fmt.Println("	update file not necessary - unchanged", file)
 	return nil
diff --git a/client.go b/client.go
index 3c4ff45..aee324c 100644
--- a/client.go
+++ b/client.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"github.com/pkg/errors"
@@ -31,7 +31,7 @@ func NewClient() Client {
 	return &bufferedClient{client: defaultHttpFactory(), handle: getHandleForEncoding(EncodingMsgpack), headers: nil}
 }
 
-func NewClientWithHttpClient(client *http.Client) Client {
+func NewClientWithHttpClient(client *http.Client) Client { //nolint:stylecheck
 	if client != nil {
 		return &bufferedClient{client: client, handle: getHandleForEncoding(EncodingMsgpack), headers: nil}
 	} else {
@@ -43,7 +43,7 @@ func newRequest(ctx context.Context, url string, contentType string, buffer *byt
 	if buffer == nil {
 		buffer = &bytes.Buffer{}
 	}
-	request, errRequest := http.NewRequestWithContext(ctx, "POST", url, buffer)
+	request, errRequest := http.NewRequestWithContext(ctx, http.MethodPost, url, buffer)
 	if errRequest != nil {
 		return nil, errors.Wrap(errRequest, "could not create a request")
 	}
@@ -71,7 +71,7 @@ func (c *bufferedClient) SetClientEncoding(encoding ClientEncoding) {
 	c.handle = getHandleForEncoding(encoding)
 }
 
-func (c *bufferedClient) SetTransportHttpClient(client *http.Client) {
+func (c *bufferedClient) SetTransportHttpClient(client *http.Client) { //nolint:stylecheck
 	c.client = client
 }
 
@@ -105,7 +105,7 @@ func (c *bufferedClient) Call(ctx context.Context, url string, endpoint string,
 	// Check status
 	if resp.StatusCode != http.StatusOK {
 		var msg string
-		if value, err := ioutil.ReadAll(resp.Body); err != nil {
+		if value, err := io.ReadAll(resp.Body); err != nil {
 			msg = "failed to read response body: " + err.Error()
 		} else {
 			msg = string(value)
diff --git a/cmd/gotsrpc/gotsrpc.go b/cmd/gotsrpc/gotsrpc.go
index 9ea5391..0bb42a3 100644
--- a/cmd/gotsrpc/gotsrpc.go
+++ b/cmd/gotsrpc/gotsrpc.go
@@ -19,8 +19,8 @@ func usage() {
 	fmt.Println(os.Args[0], " path/to/build-config.yml")
 	flag.PrintDefaults()
 }
-func main() {
 
+func main() {
 	flagDebug := flag.Bool("debug", false, "debug")
 
 	flag.Parse()
diff --git a/config/config.go b/config/config.go
index f193e18..d84cec9 100644
--- a/config/config.go
+++ b/config/config.go
@@ -2,7 +2,6 @@ package config
 
 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
@@ -65,7 +64,7 @@ type Config struct {
 }
 
 func LoadConfigFile(file string) (conf *Config, err error) {
-	yamlBytes, readErr := ioutil.ReadFile(file)
+	yamlBytes, readErr := os.ReadFile(file)
 	if readErr != nil {
 		return nil, errors.New("could not read config file: " + readErr.Error())
 	}
@@ -81,7 +80,7 @@ func LoadConfigFile(file string) (conf *Config, err error) {
 		}
 		conf.Module.Path = absPath
 
-		if data, err := ioutil.ReadFile(path.Join(absPath, "go.mod")); err != nil && !os.IsNotExist(err) {
+		if data, err := os.ReadFile(path.Join(absPath, "go.mod")); err != nil && !os.IsNotExist(err) {
 			return nil, err
 		} else if err == nil {
 			modFile, err := modfile.Parse(path.Join(absPath, "go.mod"), data, nil)
diff --git a/config/config_test.go b/config/config_test.go
index 7054e21..b106e78 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -66,7 +66,6 @@ func TestLoadConfig(t *testing.T) {
 	if demoTarget.Services["/service/demo"] != "Service" {
 		t.Fatal("first service is wrong")
 	}
-
 }
 
 func TestLoadConfigFile_GomodAbsolute(t *testing.T) {
diff --git a/error.go b/error.go
index 62aaf30..7f5dbb5 100644
--- a/error.go
+++ b/error.go
@@ -21,12 +21,12 @@ type Error struct {
 // NewError returns a new instance
 func NewError(err error) *Error {
 	// check if already transformed
-	if v, ok := err.(*Error); ok {
+	if v, ok := err.(*Error); ok { //nolint:errorlint
 		return v
 	}
 
 	// skip *withStack error type
-	if _, ok := err.(interface {
+	if _, ok := err.(interface { //nolint:errorlint
 		StackTrace() errors.StackTrace
 	}); ok && errors.Unwrap(err) != nil {
 		err = errors.Unwrap(err)
@@ -87,7 +87,7 @@ func (e *Error) Format(s fmt.State, verb rune) {
 		}
 		fallthrough
 	case 's', 'q':
-		io.WriteString(s, e.Error())
+		_, _ = io.WriteString(s, e.Error())
 	}
 }
 
diff --git a/example/basic/service/gorpc_gen.go b/example/basic/service/gorpc_gen.go
index bc7cd0d..7127c6a 100644
--- a/example/basic/service/gorpc_gen.go
+++ b/example/basic/service/gorpc_gen.go
@@ -854,7 +854,7 @@ func (p *ServiceGoRPCProxy) handler(clientAddr string, request interface{}) (res
 		retUIntTypeMapTyped_0 := p.service.UIntTypeMapTyped(req.V)
 		response = ServiceUIntTypeMapTypedResponse{RetUIntTypeMapTyped_0: retUIntTypeMapTyped_0}
 	default:
-		fmt.Println("Unkown request type", reflect.TypeOf(request).String())
+		fmt.Println("Unknown request type", reflect.TypeOf(request).String())
 	}
 
 	if p.callStatsHandler != nil {
diff --git a/example/basic/service/gotsrpc_gen.go b/example/basic/service/gotsrpc_gen.go
index a5e242a..cb4cfe8 100644
--- a/example/basic/service/gotsrpc_gen.go
+++ b/example/basic/service/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package service
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -99,7 +98,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/errors/service/backend/gotsrpc_gen.go b/example/errors/service/backend/gotsrpc_gen.go
index f946efe..efe58fb 100644
--- a/example/errors/service/backend/gotsrpc_gen.go
+++ b/example/errors/service/backend/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package backend
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -49,7 +48,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/errors/service/frontend/gotsrpc_gen.go b/example/errors/service/frontend/gotsrpc_gen.go
index a141d48..64320fd 100644
--- a/example/errors/service/frontend/gotsrpc_gen.go
+++ b/example/errors/service/frontend/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package frontend
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -44,7 +43,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/monitor/service/gorpc_gen.go b/example/monitor/service/gorpc_gen.go
index 693fb60..4ed6ffe 100644
--- a/example/monitor/service/gorpc_gen.go
+++ b/example/monitor/service/gorpc_gen.go
@@ -77,7 +77,7 @@ func (p *ServiceGoRPCProxy) handler(clientAddr string, request interface{}) (res
 		retHello_0 := p.service.Hello(req.V)
 		response = ServiceHelloResponse{RetHello_0: retHello_0}
 	default:
-		fmt.Println("Unkown request type", reflect.TypeOf(request).String())
+		fmt.Println("Unknown request type", reflect.TypeOf(request).String())
 	}
 
 	if p.callStatsHandler != nil {
diff --git a/example/monitor/service/gotsrpc_gen.go b/example/monitor/service/gotsrpc_gen.go
index c3fe739..322e44e 100644
--- a/example/monitor/service/gotsrpc_gen.go
+++ b/example/monitor/service/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package service
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -39,7 +38,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/nullable/service/gorpc_gen.go b/example/nullable/service/gorpc_gen.go
index 26a2481..b2360b4 100644
--- a/example/nullable/service/gorpc_gen.go
+++ b/example/nullable/service/gorpc_gen.go
@@ -174,7 +174,7 @@ func (p *ServiceGoRPCProxy) handler(clientAddr string, request interface{}) (res
 		r1, r2, r3, r4 := p.service.VariantH(nil, nil, req.I1, req.I2, req.I3, req.I4)
 		response = ServiceVariantHResponse{R1: r1, R2: r2, R3: r3, R4: r4}
 	default:
-		fmt.Println("Unkown request type", reflect.TypeOf(request).String())
+		fmt.Println("Unknown request type", reflect.TypeOf(request).String())
 	}
 
 	if p.callStatsHandler != nil {
diff --git a/example/nullable/service/gotsrpc_gen.go b/example/nullable/service/gotsrpc_gen.go
index 8627392..955b990 100644
--- a/example/nullable/service/gotsrpc_gen.go
+++ b/example/nullable/service/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package service
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -46,7 +45,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/time/service/gorpc_gen.go b/example/time/service/gorpc_gen.go
index c4c18e8..0387ec7 100644
--- a/example/time/service/gorpc_gen.go
+++ b/example/time/service/gorpc_gen.go
@@ -90,7 +90,7 @@ func (p *ServiceGoRPCProxy) handler(clientAddr string, request interface{}) (res
 		retTimeStruct_0 := p.service.TimeStruct(req.V)
 		response = ServiceTimeStructResponse{RetTimeStruct_0: retTimeStruct_0}
 	default:
-		fmt.Println("Unkown request type", reflect.TypeOf(request).String())
+		fmt.Println("Unknown request type", reflect.TypeOf(request).String())
 	}
 
 	if p.callStatsHandler != nil {
diff --git a/example/time/service/gotsrpc_gen.go b/example/time/service/gotsrpc_gen.go
index 227e507..013fe2a 100644
--- a/example/time/service/gotsrpc_gen.go
+++ b/example/time/service/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package service
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -40,7 +39,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/example/union/service/gotsrpc_gen.go b/example/union/service/gotsrpc_gen.go
index 76e9c8e..fb13315 100644
--- a/example/union/service/gotsrpc_gen.go
+++ b/example/union/service/gotsrpc_gen.go
@@ -4,7 +4,6 @@ package service
 
 import (
 	io "io"
-	ioutil "io/ioutil"
 	http "net/http"
 	time "time"
 
@@ -47,7 +46,7 @@ func (p *ServiceGoTSRPCProxy) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		gotsrpc.ErrorMethodNotAllowed(w)
 		return
 	}
-	defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body
+	defer io.Copy(io.Discard, r.Body) // Drain Request Body
 
 	funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)
 	callStats, _ := gotsrpc.GetStatsForRequest(r)
diff --git a/go.go b/go.go
index e802a8f..c5949fd 100644
--- a/go.go
+++ b/go.go
@@ -22,7 +22,7 @@ func (v *Value) goType(aliases map[string]string, packageName string) (t string)
 	if v.IsPtr {
 		t = "*"
 	}
-	switch true {
+	switch {
 	case v.Array != nil:
 		t += "[]" + v.Array.Value.goType(aliases, packageName)
 	case len(v.GoScalarType) > 0:
@@ -49,80 +49,6 @@ func (v *Value) goType(aliases map[string]string, packageName string) (t string)
 	return
 }
 
-func (v *Value) emptyLiteral(aliases map[string]string) (e string) {
-	e = ""
-	if v.IsPtr {
-		e += "&"
-	}
-	switch true {
-	case v.Map != nil:
-		e += "map[" + v.Map.KeyGoType + "]" + v.Map.Value.emptyLiteral(aliases)
-	case len(v.GoScalarType) > 0:
-		switch v.GoScalarType {
-		case "string":
-			e += "\"\""
-		case "float":
-			return "float(0.0)"
-		case "float32":
-			return "float32(0.0)"
-		case "float64":
-			return "float64(0.0)"
-		case "int":
-			return "int(0)"
-		case "int8":
-			return "int8(0)"
-		case "int16":
-			return "int16(0)"
-		case "int32":
-			return "int32(0)"
-		case "int64":
-			return "int64(0)"
-		case "uint":
-			return "uint(0)"
-		case "uint8":
-			return "uint8(0)"
-		case "uint16":
-			return "uint16(0)"
-		case "uint32":
-			return "uint32(0)"
-		case "uint64":
-			return "uint64(0)"
-		case "bool":
-			return "false"
-		}
-	case v.Array != nil:
-		e += "[]"
-		if v.Array.Value.IsPtr {
-			e += "*"
-		}
-		l := v.Array.Value.emptyLiteral(aliases)
-		if len(v.Array.Value.GoScalarType) == 0 {
-			if v.Array.Value.IsPtr {
-				l = strings.TrimPrefix(l, "&")
-			}
-			l = strings.TrimSuffix(l, "{}")
-		} else {
-			l = v.Array.Value.GoScalarType
-		}
-		e += l + "{}"
-	case v.StructType != nil:
-		alias := aliases[v.StructType.Package]
-		if alias != "" {
-			e += alias + "."
-		}
-		e += v.StructType.Name + "{}"
-	case v.Scalar != nil:
-		alias := aliases[v.Scalar.Package]
-		if alias != "" {
-			e += alias + "."
-		}
-		e += v.Scalar.Name + "{}"
-	case v.IsInterface:
-		e += "interface{}{}"
-	}
-	return
-}
-
 func lcfirst(str string) string {
 	return strfirst(str, strings.ToLower)
 }
@@ -139,7 +65,6 @@ func strfirst(str string, strfunc func(string) string) string {
 		} else {
 			res += string(char)
 		}
-
 	}
 	return res
 }
@@ -147,12 +72,11 @@ func strfirst(str string, strfunc func(string) string) string {
 func extractImport(packageName string, fullPackageName string, aliases map[string]string) {
 	r := strings.NewReplacer(".", "_", "/", "_", "-", "_")
 	if packageName != fullPackageName {
-		alias, ok := aliases[packageName]
-		if !ok {
+		if _, ok := aliases[packageName]; !ok {
 			packageParts := strings.Split(packageName, "/")
 			beautifulAlias := packageParts[len(packageParts)-1]
 			uglyAlias := r.Replace(packageName)
-			alias = uglyAlias //beautifulAlias
+			alias := uglyAlias // beautifulAlias
 			for _, otherAlias := range aliases {
 				if otherAlias == beautifulAlias {
 					alias = uglyAlias
@@ -189,7 +113,6 @@ func renderTSRPCServiceProxies(services ServiceList, fullPackageName string, pac
 		"time":                        "time",
 		"net/http":                    "http",
 		"io":                          "io",
-		"io/ioutil":                   "ioutil",
 		"github.com/foomo/gotsrpc/v2": "gotsrpc",
 	}
 	for _, service := range services {
@@ -256,7 +179,7 @@ func renderTSRPCServiceProxies(services ServiceList, fullPackageName string, pac
 		        gotsrpc.ErrorMethodNotAllowed(w)
 		        return
 	        }
-			defer io.Copy(ioutil.Discard, r.Body) // Drain Request Body 
+			defer io.Copy(io.Discard, r.Body) // Drain Request Body 
 		`)
 
 		g.l("funcName := gotsrpc.GetCalledFunc(r, p.EndPoint)")
@@ -435,7 +358,7 @@ func renderTSRPCServiceClients(services ServiceList, fullPackageName string, pac
 		interfaceName := service.Name + "GoTSRPCClient"
 		clientName := "HTTP" + interfaceName
 
-		//Render Interface
+		// Render Interface
 		g.l(`type ` + interfaceName + ` interface { `)
 		for _, method := range service.Methods {
 			ms := newMethodSignature(method, aliases, fullPackageName)
@@ -444,7 +367,7 @@ func renderTSRPCServiceClients(services ServiceList, fullPackageName string, pac
 
 		g.l(`} `)
 
-		//Render Constructors
+		// Render Constructors
 		g.l(`
         type ` + clientName + ` struct {
 					URL string
@@ -634,7 +557,7 @@ func renderGoRPCServiceProxies(services ServiceList, fullPackageName string, pac
 			g.l(`response = ` + service.Name + method.Name + `Response{` + strings.Join(retParams, ", ") + `}`)
 		}
 		g.l(`default:`)
-		g.l(`fmt.Println("Unkown request type", reflect.TypeOf(request).String())`)
+		g.l(`fmt.Println("Unknown request type", reflect.TypeOf(request).String())`)
 		g.l(`}`)
 		g.nl()
 		g.l(`if p.callStatsHandler != nil {`)
diff --git a/gotsrpc.go b/gotsrpc.go
index 82a720b..78fcd73 100644
--- a/gotsrpc.go
+++ b/gotsrpc.go
@@ -21,7 +21,9 @@ import (
 	"github.com/foomo/gotsrpc/v2/config"
 )
 
-const contextStatsKey = "gotsrpcStats"
+type contextKey string
+
+const contextStatsKey contextKey = "gotsrpcStats"
 
 func GetCalledFunc(r *http.Request, endPoint string) string {
 	return strings.TrimPrefix(r.URL.Path, endPoint+"/")
@@ -71,8 +73,8 @@ func RequestWithStatsContext(r *http.Request) *http.Request {
 }
 
 func GetStatsForRequest(r *http.Request) (*CallStats, bool) {
-	if value := r.Context().Value(contextStatsKey); value != nil {
-		return value.(*CallStats), true
+	if value, ok := r.Context().Value(contextStatsKey).(*CallStats); ok && value != nil {
+		return value, true
 	} else {
 		return &CallStats{}, false
 	}
@@ -197,9 +199,7 @@ func parsePackage(goPaths []string, gomod config.Namespace, packageName string)
 	}
 	var foundPackages []string
 	sortedGoPaths := make([]string, len(goPaths))
-	for iGoPath := range goPaths {
-		sortedGoPaths[iGoPath] = goPaths[iGoPath]
-	}
+	copy(sortedGoPaths, goPaths)
 	sort.Sort(byLen(sortedGoPaths))
 
 	var parsedPkg *ast.Package
diff --git a/http.go b/http.go
index 1cc6c53..e37fd22 100644
--- a/http.go
+++ b/http.go
@@ -9,7 +9,7 @@ import (
 // Default Client Factory
 // https://medium.com/@nate510/don-t-use-go-s-default-http-client-4804cb19f779
 
-var defaultHttpFactory HttpClientFactory = func() *http.Client {
+var defaultHttpFactory HttpClientFactory = func() *http.Client { //nolint:stylecheck
 	transport := &http.Transport{
 		Proxy: http.ProxyFromEnvironment,
 		DialContext: (&net.Dialer{
@@ -28,8 +28,8 @@ var defaultHttpFactory HttpClientFactory = func() *http.Client {
 	}
 }
 
-type HttpClientFactory func() *http.Client
+type HttpClientFactory func() *http.Client //nolint:stylecheck
 
-func SetDefaultHttpClientFactory(factory HttpClientFactory) {
+func SetDefaultHttpClientFactory(factory HttpClientFactory) { //nolint:stylecheck
 	defaultHttpFactory = factory
 }
diff --git a/http_test.go b/http_test.go
index 2aeff7e..61f7a3c 100644
--- a/http_test.go
+++ b/http_test.go
@@ -1,9 +1,10 @@
 package gotsrpc
 
 import (
-	"github.com/stretchr/testify/assert"
 	"net/http"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestSetDefaultHttpClientFactory(t *testing.T) {
diff --git a/instrumentation_test.go b/instrumentation_test.go
index c36608b..7645fb5 100644
--- a/instrumentation_test.go
+++ b/instrumentation_test.go
@@ -10,12 +10,11 @@ import (
 
 func TestInstrumentedService(t *testing.T) {
 	middleware := func(w http.ResponseWriter, r *http.Request) {
-		if s := GetStatsForRequest(r); s != nil {
+		if s, ok := GetStatsForRequest(r); ok && s != nil {
 			s.Func = "func"
 			s.Package = "package"
 			s.Service = "service"
 		}
-		return
 	}
 
 	t.Run("stats", func(t *testing.T) {
@@ -29,7 +28,7 @@ func TestInstrumentedService(t *testing.T) {
 		})
 
 		rsp := httptest.NewRecorder()
-		req := httptest.NewRequest("GET", "/test", nil)
+		req := httptest.NewRequest(http.MethodGet, "/test", nil)
 
 		handler(rsp, req)
 
diff --git a/model.go b/model.go
index 6da9725..0d51681 100644
--- a/model.go
+++ b/model.go
@@ -71,24 +71,6 @@ func (sm ServiceMethods) Len() int           { return len(sm) }
 func (sm ServiceMethods) Swap(i, j int)      { sm[i], sm[j] = sm[j], sm[i] }
 func (sm ServiceMethods) Less(i, j int) bool { return sm[i].Name < sm[j].Name }
 
-func (sm ServiceMethods) getMethodByName(name string) *Method {
-	for _, m := range sm {
-		if m.Name == name {
-			return m
-		}
-	}
-	return nil
-}
-
-func (sl ServiceList) getServiceByName(name string) *Service {
-	for _, s := range sl {
-		if s.Name == name {
-			return s
-		}
-	}
-	return nil
-}
-
 type Method struct {
 	Name   string
 	Args   []*Field
diff --git a/prometheus/prometheus.go b/prometheus/prometheus.go
index 4d18fcc..6cb2862 100644
--- a/prometheus/prometheus.go
+++ b/prometheus/prometheus.go
@@ -3,12 +3,13 @@ package prometheus
 import (
 	"net/http"
 
-	"github.com/foomo/gotsrpc/v2"
 	p "github.com/prometheus/client_golang/prometheus"
+
+	"github.com/foomo/gotsrpc/v2"
 )
 
 func InstrumentService(s http.HandlerFunc) (handler http.HandlerFunc) {
-	requestDuration := p.NewSummaryVec(p.SummaryOpts{
+	requestDuration := p.NewSummaryVec(p.SummaryOpts{ //nolint:promlinter
 		Namespace:  "gotsrpc",
 		Subsystem:  "service",
 		Name:       "time_nanoseconds",
diff --git a/reader_test.go b/reader_test.go
deleted file mode 100644
index c74f60f..0000000
--- a/reader_test.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package gotsrpc
-
-import (
-	"github.com/foomo/gotsrpc/v2/config"
-	"os"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func getTestServiceList(t *testing.T) ServiceList {
-	// ReaderTrace = true
-	serviceMap := map[string]string{
-		"/demo": "Demo",
-	}
-
-	packageName := "github.com/foomo/gotsrpc/v2/demo"
-
-	pkg, parseErr := parsePackage([]string{os.Getenv("GOPATH")}, config.Namespace{}, packageName)
-	assert.NoError(t, parseErr)
-
-	services, err := readServicesInPackage(pkg, packageName, serviceMap)
-	assert.NoError(t, err)
-
-	missingTypes := map[string]bool{}
-	for _, s := range services {
-		for _, m := range s.Methods {
-			collectStructTypes(m.Return, missingTypes)
-			collectStructTypes(m.Args, missingTypes)
-			collectScalarTypes(m.Return, missingTypes)
-			collectScalarTypes(m.Args, missingTypes)
-		}
-	}
-	return services
-}
diff --git a/servicereader.go b/servicereader.go
index 3d5a7c0..4c0171a 100644
--- a/servicereader.go
+++ b/servicereader.go
@@ -34,11 +34,8 @@ func readServiceFile(file *ast.File, packageName string, services ServiceList) e
 				trace("that is a method named", funcDecl.Name)
 				if len(funcDecl.Recv.List) == 1 {
 					firstReceiverField := funcDecl.Recv.List[0]
-					if "*ast.StarExpr" == reflect.ValueOf(firstReceiverField.Type).Type().String() {
-						starExpr := firstReceiverField.Type.(*ast.StarExpr)
-						if "*ast.Ident" == reflect.ValueOf(starExpr.X).Type().String() {
-
-							ident := starExpr.X.(*ast.Ident)
+					if starExpr, ok := firstReceiverField.Type.(*ast.StarExpr); ok {
+						if ident, ok := starExpr.X.(*ast.Ident); ok {
 							service, ok := findService(ident.Name)
 							firstCharOfMethodName := funcDecl.Name.Name[0:1]
 							if !ok || strings.ToLower(firstCharOfMethodName) == firstCharOfMethodName {
@@ -77,7 +74,7 @@ func readServiceFile(file *ast.File, packageName string, services ServiceList) e
 									}
 									mname := fieldDecl.Names[0]
 									trace(" on sth:", mname.Name)
-									//fmt.Println("interface:", ident.Name, "method:", mname.Name)
+									// fmt.Println("interface:", ident.Name, "method:", mname.Name)
 									service.Methods = append(service.Methods, &Method{
 										Name:   mname.Name,
 										Args:   readFields(funcDecl.Params, fileImports),
@@ -121,13 +118,11 @@ func standardImportName(importPath string) string {
 func getFileImports(file *ast.File, packageName string) (imports fileImportSpecMap) {
 	imports = fileImportSpecMap{"": importSpec{alias: "", name: "", path: packageName}}
 	for _, decl := range file.Decls {
-		if reflect.ValueOf(decl).Type().String() == "*ast.GenDecl" {
-			genDecl := decl.(*ast.GenDecl)
+		if genDecl, ok := decl.(*ast.GenDecl); ok {
 			if genDecl.Tok == token.IMPORT {
 				trace("got an import", genDecl.Specs)
 				for _, spec := range genDecl.Specs {
-					if "*ast.ImportSpec" == reflect.ValueOf(spec).Type().String() {
-						spec := spec.(*ast.ImportSpec)
+					if spec, ok := spec.(*ast.ImportSpec); ok {
 						importPath := spec.Path.Value[1 : len(spec.Path.Value)-1]
 						importName := spec.Name.String()
 						if importName == "" || importName == "<nil>" {
@@ -138,7 +133,7 @@ func getFileImports(file *ast.File, packageName string) (imports fileImportSpecM
 							name:  standardImportName(importPath),
 							path:  importPath,
 						}
-						//trace("  import   >>>>>>>>>>>>>>>>>>>>", importName, importPath)
+						// trace("  import   >>>>>>>>>>>>>>>>>>>>", importName, importPath)
 					}
 				}
 			}
@@ -191,7 +186,6 @@ func readServicesInPackage(pkg *ast.Package, packageName string, serviceMap map[
 		if err != nil {
 			return
 		}
-
 	}
 	sort.Sort(services)
 	return
@@ -201,23 +195,20 @@ func loadConstantTypes(pkg *ast.Package) map[string]interface{} {
 	constantTypes := map[string]interface{}{}
 	for _, file := range pkg.Files {
 		for _, decl := range file.Decls {
-			if reflect.ValueOf(decl).Type().String() == "*ast.GenDecl" {
-				genDecl := decl.(*ast.GenDecl)
-				switch genDecl.Tok {
+			if genDecl, ok := decl.(*ast.GenDecl); ok {
+				switch genDecl.Tok { //nolint:exhaustive
 				case token.TYPE:
 					trace("got a type", genDecl.Specs)
 					for _, spec := range genDecl.Specs {
-						if reflect.ValueOf(spec).Type().String() == "*ast.TypeSpec" {
-							spec := spec.(*ast.TypeSpec)
+						if spec, ok := spec.(*ast.TypeSpec); ok {
 							if _, ok := constantTypes[spec.Name.Name]; ok {
 								continue
 							}
-							switch reflect.ValueOf(spec.Type).Type().String() {
-							case "*ast.InterfaceType":
+							switch specType := spec.Type.(type) {
+							case *ast.InterfaceType:
 								constantTypes[spec.Name.Name] = "any"
-							case "*ast.Ident":
-								specIdent := spec.Type.(*ast.Ident)
-								switch specIdent.Name {
+							case *ast.Ident:
+								switch specType.Name {
 								case "byte":
 									constantTypes[spec.Name.Name] = "any"
 								case "string":
@@ -239,17 +230,16 @@ func loadConstantTypes(pkg *ast.Package) map[string]interface{} {
 				case token.CONST:
 					trace("got a const", genDecl.Specs)
 					for _, spec := range genDecl.Specs {
-						if reflect.ValueOf(spec).Type().String() == "*ast.ValueSpec" {
-							spec := spec.(*ast.ValueSpec)
+						if spec, ok := spec.(*ast.ValueSpec); ok {
 							if specType, ok := spec.Type.(*ast.Ident); ok {
 								for _, val := range spec.Values {
-									if reflect.ValueOf(val).Type().String() == "*ast.BasicLit" {
+									if valType, ok := val.(*ast.BasicLit); ok {
 										if _, ok := constantTypes[specType.Name]; !ok {
 											constantTypes[specType.Name] = map[string]*ast.BasicLit{}
 										} else if _, ok := constantTypes[specType.Name].(map[string]*ast.BasicLit); !ok {
 											constantTypes[specType.Name] = map[string]*ast.BasicLit{}
 										}
-										constantTypes[specType.Name].(map[string]*ast.BasicLit)[spec.Names[0].Name] = val.(*ast.BasicLit)
+										constantTypes[specType.Name].(map[string]*ast.BasicLit)[spec.Names[0].Name] = valType //nolint:forcetypeassert
 									}
 								}
 							}
@@ -461,7 +451,7 @@ func collectTypes(goPaths []string, gomod config.Namespace, missingTypes map[str
 			fullNameParts := strings.Split(fullName, ".")
 			fullNameParts = fullNameParts[:len(fullNameParts)-1]
 
-			//path := fullNameParts[:len(fullNameParts)-1][0]
+			// path := fullNameParts[:len(fullNameParts)-1][0]
 
 			packageName := strings.Join(fullNameParts, ".")
 
@@ -514,11 +504,10 @@ func collectTypes(goPaths []string, gomod config.Namespace, missingTypes map[str
 					scalars[packageScalarName] = packageScalar
 				}
 			}
-
 		}
 		newNumMissingTypes := len(missingTypeNames())
 		if newNumMissingTypes > 0 && newNumMissingTypes == lastNumMissing {
-			//packageStructs, structOK := scannedPackageStructs[packageName]
+			// packageStructs, structOK := scannedPackageStructs[packageName]
 			for scalarName, scalars := range scannedPackageScalars {
 				fmt.Println("scanned scalars ", scalarName)
 				for _, scalar := range scalars {
@@ -597,25 +586,25 @@ func (s *Struct) DepsSatisfied(missingTypes map[string]bool, structs map[string]
 				return false
 			}
 
-			//var fieldStructType *StructType = nil
-			//if field.Value.StructType != nil {
-			//	fieldStructType = field.Value.StructType
-			//} else if field.Value.Array != nil && field.Value.Array.Value.StructType != nil {
-			//	fieldStructType = field.Value.Array.Value.StructType
-			//} else if field.Value.Map != nil && field.Value.Map.Value.StructType != nil {
-			//	fieldStructType = field.Value.Map.Value.StructType
-			//} else if field.Value.Scalar != nil && needsWork(field.Value.Scalar.FullName()) {
-			//	return false
-			//} else if field.Value.Array != nil && field.Value.Array.Value.Scalar != nil && needsWork(field.Value.Array.Value.Scalar.FullName()) {
-			//	return false
-			//} else if field.Value.Map != nil && field.Value.Map.Value.Scalar != nil && needsWork(field.Value.Map.Value.Scalar.FullName()) {
-			//	return false
-			//}
-			//if fieldStructType != nil {
-			//	if needsWork(fieldStructType.FullName()) {
-			//		return false
-			//	}
-			//}
+			// var fieldStructType *StructType = nil
+			// if field.Value.StructType != nil {
+			// 	fieldStructType = field.Value.StructType
+			// } else if field.Value.Array != nil && field.Value.Array.Value.StructType != nil {
+			// 	fieldStructType = field.Value.Array.Value.StructType
+			// } else if field.Value.Map != nil && field.Value.Map.Value.StructType != nil {
+			// 	fieldStructType = field.Value.Map.Value.StructType
+			// } else if field.Value.Scalar != nil && needsWork(field.Value.Scalar.FullName()) {
+			// 	return false
+			// } else if field.Value.Array != nil && field.Value.Array.Value.Scalar != nil && needsWork(field.Value.Array.Value.Scalar.FullName()) {
+			// 	return false
+			// } else if field.Value.Map != nil && field.Value.Map.Value.Scalar != nil && needsWork(field.Value.Map.Value.Scalar.FullName()) {
+			// 	return false
+			// }
+			// if fieldStructType != nil {
+			// 	if needsWork(fieldStructType.FullName()) {
+			// 		return false
+			// 	}
+			// }
 		}
 		return true
 	}
@@ -627,7 +616,7 @@ func (s *Struct) DepsSatisfied(missingTypes map[string]bool, structs map[string]
 		return false
 	}
 	//// special handling of union only structs
-	//if len(s.Fields) == 0 {
+	// if len(s.Fields) == 0 {
 	//	for _, field := range s.UnionFields {
 	//		var fieldStructType *StructType = nil
 	//		if field.Value.StructType != nil {
@@ -704,12 +693,12 @@ func getTypesInPackage(
 }
 
 func getStructTypeForField(value *Value) *StructType {
-	//field.Value.StructType
+	// field.Value.StructType
 	var strType *StructType
-	switch true {
+	switch {
 	case value.StructType != nil:
 		strType = value.StructType
-		//case field.Value.ArrayType
+		// case field.Value.ArrayType
 	case value.Map != nil:
 		strType = getStructTypeForField(value.Map.Value)
 	case value.Array != nil:
@@ -719,12 +708,12 @@ func getStructTypeForField(value *Value) *StructType {
 }
 
 func getScalarForField(value *Value) []*Scalar {
-	//field.Value.StructType
+	// field.Value.StructType
 	var scalarTypes []*Scalar
-	switch true {
+	switch {
 	case value.Scalar != nil:
 		scalarTypes = append(scalarTypes, value.Scalar)
-		//case field.Value.ArrayType
+		// case field.Value.ArrayType
 	case value.Map != nil:
 		if value.Map.Key != nil {
 			if v := getScalarForField(value.Map.Key); v != nil {
@@ -775,4 +764,4 @@ func collectStructTypes(fields []*Field, structTypes map[string]bool) {
 	}
 }
 
-//func collectStructs(goPath, structs)
+// func collectStructs(goPath, structs)
diff --git a/timeext.go b/timeext.go
index 3bbf985..7326ae5 100644
--- a/timeext.go
+++ b/timeext.go
@@ -9,10 +9,11 @@ type TimeExt struct{}
 var timeExt = &TimeExt{}
 
 func (x *TimeExt) ConvertExt(v interface{}) interface{} {
-	return v.(*time.Time).UnixMilli()
+	return v.(*time.Time).UnixMilli() //nolint:forcetypeassert
 }
 
 func (x *TimeExt) UpdateExt(dest interface{}, src interface{}) {
-	tt := dest.(*time.Time)
-	*tt = time.Unix(0, src.(int64)*int64(time.Millisecond)).Local()
+	tt := dest.(*time.Time) //nolint:forcetypeassert
+
+	*tt = time.Unix(0, src.(int64)*int64(time.Millisecond)).Local() //nolint:forcetypeassert
 }
diff --git a/transport.go b/transport.go
index 419b7c4..4ebd77f 100644
--- a/transport.go
+++ b/transport.go
@@ -14,7 +14,7 @@ type ClientEncoding int
 
 const (
 	EncodingMsgpack = ClientEncoding(0)
-	EncodingJson    = ClientEncoding(1)
+	EncodingJson    = ClientEncoding(1) //nolint:stylecheck
 )
 
 var errorType = reflect.TypeOf((*error)(nil)).Elem()
@@ -102,11 +102,17 @@ func NewMSGPackDecoderBytes(b []byte) *codec.Decoder {
 }
 
 func SetJSONExt(rt interface{}, tag uint64, ext codec.InterfaceExt) error {
-	return jsonClientHandle.handle.(*codec.JsonHandle).SetInterfaceExt(reflect.TypeOf(rt), tag, ext)
+	if value, ok := jsonClientHandle.handle.(*codec.JsonHandle); ok {
+		return value.SetInterfaceExt(reflect.TypeOf(rt), tag, ext)
+	}
+	return errors.New("invalid handle type")
 }
 
 func SetMSGPackExt(rt interface{}, tag uint64, ext codec.BytesExt) error {
-	return msgpackClientHandle.handle.(*codec.MsgpackHandle).SetBytesExt(reflect.TypeOf(rt), tag, ext)
+	if value, ok := msgpackClientHandle.handle.(*codec.MsgpackHandle); ok {
+		return value.SetBytesExt(reflect.TypeOf(rt), tag, ext)
+	}
+	return errors.New("invalid handle type")
 }
 
 func getHandleForEncoding(encoding ClientEncoding) *clientHandle {
diff --git a/typereader.go b/typereader.go
index ff29510..e7b3479 100644
--- a/typereader.go
+++ b/typereader.go
@@ -136,9 +136,10 @@ func getScalarFromAstIdent(ident *ast.Ident) ScalarType {
 		return ScalarTypeNumber
 	default:
 		if ident.Obj != nil && ident.Obj.Decl != nil && reflect.ValueOf(ident.Obj.Decl).Type().String() == "*ast.TypeSpec" {
-			typeSpec := ident.Obj.Decl.(*ast.TypeSpec)
-			if reflect.ValueOf(typeSpec.Type).Type().String() == "*ast.Ident" {
-				return ScalarType(ident.Name) //getScalarFromAstIdent(typeSpec.Type.(*ast.Ident))
+			if typeSpec, ok := ident.Obj.Decl.(*ast.TypeSpec); ok {
+				if reflect.ValueOf(typeSpec.Type).Type().String() == "*ast.Ident" {
+					return ScalarType(ident.Name) // getScalarFromAstIdent(typeSpec.Type.(*ast.Ident))
+				}
 			}
 		} else if ident.Obj == nil {
 			return ScalarType(ident.Name)
@@ -149,7 +150,7 @@ func getScalarFromAstIdent(ident *ast.Ident) ScalarType {
 
 func getTypesFromAstType(ident *ast.Ident) (structType string, scalarType ScalarType) {
 	scalarType = getScalarFromAstIdent(ident)
-	switch scalarType {
+	switch scalarType { //nolint:gocritic,exhaustive
 	case ScalarTypeNone:
 		structType = ident.Name
 	}
@@ -182,8 +183,7 @@ func readAstStarExpr(v *Value, starExpr *ast.StarExpr, fileImports fileImportSpe
 	v.IsPtr = true
 	switch starExprType := starExpr.X.(type) {
 	case *ast.Ident:
-		ident := starExpr.X.(*ast.Ident)
-		readAstType(v, ident, fileImports, "")
+		readAstType(v, starExprType, fileImports, "")
 	case *ast.StructType:
 		// nested anonymous
 		readAstStructType(v, starExprType, fileImports)
@@ -212,21 +212,21 @@ func readAstMapType(m *Map, mapType *ast.MapType, fileImports fileImportSpecMap)
 		// todo: implement support for "*ast.Scalar" type (sca)
 		// this is important for scalar types in map keys
 		// Example:
-		//(*ast.MapType)(0xc420e2cc90)({
-		//Map: (token.Pos) 276258,
-		//		Key: (*ast.SelectorExpr)(0xc420301900)({
-		//	X: (*ast.Ident)(0xc4203018c0)(constants),
-		//		Sel: (*ast.Ident)(0xc4203018e0)(Site)
-		//	}),
-		//Value: (*ast.ArrayType)(0xc420e2cc60)({
-		//	Lbrack: (token.Pos) 276277,
-		//			Len: (ast.Expr) <nil>,
-		//			Elt: (*ast.SelectorExpr)(0xc420301960)({
-		//		X: (*ast.Ident)(0xc420301920)(elastic),
-		//			Sel: (*ast.Ident)(0xc420301940)(CategoryDocument)
-		//		})
-		//	})
-		//})
+		// (*ast.MapType)(0xc420e2cc90)({
+		// Map: (token.Pos) 276258,
+		// 		Key: (*ast.SelectorExpr)(0xc420301900)({
+		// 	X: (*ast.Ident)(0xc4203018c0)(constants),
+		// 		Sel: (*ast.Ident)(0xc4203018e0)(Site)
+		// 	}),
+		// Value: (*ast.ArrayType)(0xc420e2cc60)({
+		// 	Lbrack: (token.Pos) 276277,
+		// 			Len: (ast.Expr) <nil>,
+		// 			Elt: (*ast.SelectorExpr)(0xc420301960)({
+		// 		X: (*ast.Ident)(0xc420301920)(elastic),
+		// 			Sel: (*ast.Ident)(0xc420301940)(CategoryDocument)
+		// 		})
+		// 	})
+		// })
 	}
 	// value
 	m.Value.loadExpr(mapType.Value, fileImports)
@@ -236,16 +236,16 @@ func readAstSelectorExpr(v *Value, selectorExpr *ast.SelectorExpr, fileImports f
 	switch selExpType := selectorExpr.X.(type) {
 	case *ast.Ident:
 		// that could be the package name
-		//selectorIdent := selectorExpr.X.(*ast.Ident)
+		// selectorIdent := selectorExpr.X.(*ast.Ident)
 		// fmt.Println(selectorExpr, selectorExpr.X.(*ast.Ident))
-		//readAstType(v, selectorExpr.X.(*ast.Ident), fileImports)
+		// readAstType(v, selectorExpr.X.(*ast.Ident), fileImports)
 		readAstType(v, selectorExpr.Sel, fileImports, selExpType.Name)
 		if v.StructType != nil {
 			v.StructType.Package = fileImports.getPackagePath(v.StructType.Name)
 			v.StructType.Name = selectorExpr.Sel.Name
 		}
-		//fmt.Println(selectorExpr.X.(*ast.Ident).Name, ".", selectorExpr.Sel)
-		//readAstType(v, selectorExpr.Sel, fileImports)
+		// fmt.Println(selectorExpr.X.(*ast.Ident).Name, ".", selectorExpr.Sel)
+		// readAstType(v, selectorExpr.Sel, fileImports)
 	default:
 		trace("selectorExpr.Sel !?", selectorExpr.X, reflect.ValueOf(selectorExpr.X).Type().String())
 	}
@@ -261,14 +261,13 @@ func readAstInterfaceType(v *Value, interfaceType *ast.InterfaceType, fileImport
 }
 
 func (v *Value) loadExpr(expr ast.Expr, fileImports fileImportSpecMap) {
-
 	switch exprType := expr.(type) {
 	case *ast.ArrayType:
 		v.Array = &Array{Value: &Value{}}
 
 		switch exprEltType := exprType.Elt.(type) {
 		case *ast.ArrayType:
-			//readAstArrayType(v.Array.Value, fieldArray.Elt.(*ast.ArrayType), fileImports)
+			// readAstArrayType(v.Array.Value, fieldArray.Elt.(*ast.ArrayType), fileImports)
 			v.Array.Value.loadExpr(exprEltType, fileImports)
 		case *ast.Ident:
 			readAstType(v.Array.Value, exprEltType, fileImports, "")
@@ -369,23 +368,18 @@ func readFieldList(fieldList []*ast.Field, fileImports fileImportSpecMap) (field
 
 func extractErrorTypes(file *ast.File, packageName string, errorTypes map[string]bool) (err error) {
 	for _, d := range file.Decls {
-		if reflect.ValueOf(d).Type().String() == "*ast.FuncDecl" {
-			funcDecl := d.(*ast.FuncDecl)
+		if funcDecl, ok := d.(*ast.FuncDecl); ok {
 			if funcDecl.Recv != nil && len(funcDecl.Recv.List) == 1 {
 				firstReceiverField := funcDecl.Recv.List[0]
-				if "*ast.StarExpr" == reflect.ValueOf(firstReceiverField.Type).Type().String() {
-					starExpr := firstReceiverField.Type.(*ast.StarExpr)
-					if "*ast.Ident" == reflect.ValueOf(starExpr.X).Type().String() {
-						ident := starExpr.X.(*ast.Ident)
+				if starExpr, ok := firstReceiverField.Type.(*ast.StarExpr); ok {
+					if ident, ok := starExpr.X.(*ast.Ident); ok {
 						if funcDecl.Name.Name == "Error" && funcDecl.Type.Params.NumFields() == 0 && funcDecl.Type.Results.NumFields() == 1 {
 							returnValueField := funcDecl.Type.Results.List[0]
-							refl := reflect.ValueOf(returnValueField.Type)
-							if refl.Type().String() == "*ast.Ident" {
-								returnValueIdent := returnValueField.Type.(*ast.Ident)
+							if returnValueIdent, ok := returnValueField.Type.(*ast.Ident); ok {
 								if returnValueIdent.Name == "string" {
 									errorTypes[packageName+"."+ident.Name] = true
 								}
-								//fmt.Println("error for:", ident.Name, returnValueIdent.Name)
+								// fmt.Println("error for:", ident.Name, returnValueIdent.Name)
 							}
 						}
 					}
@@ -402,39 +396,34 @@ func extractTypes(file *ast.File, packageName string, structs map[string]*Struct
 		if obj.Kind == ast.Typ && obj.Decl != nil {
 			structName := packageName + "." + name
 
-			if reflect.ValueOf(obj.Decl).Type().String() == "*ast.TypeSpec" {
-				typeSpec := obj.Decl.(*ast.TypeSpec)
-				typeSpecRefl := reflect.ValueOf(typeSpec.Type)
-				typeName := typeSpecRefl.Type().String()
-				switch typeName {
-				case "*ast.StructType":
+			if typeSpec, ok := obj.Decl.(*ast.TypeSpec); ok {
+				switch typeSpecType := typeSpec.Type.(type) {
+				case *ast.StructType:
 					structs[structName] = &Struct{
 						Name:    name,
 						Fields:  []*Field{},
 						Package: packageName,
 					}
-					structType := typeSpec.Type.(*ast.StructType)
 					trace("StructType", obj.Name)
-					fields, inlineFields, unionFields := readFieldList(structType.Fields.List, fileImports)
+					fields, inlineFields, unionFields := readFieldList(typeSpecType.Fields.List, fileImports)
 					structs[structName].Fields = fields
 					structs[structName].InlineFields = inlineFields
 					structs[structName].UnionFields = unionFields
-				case "*ast.InterfaceType":
+				case *ast.InterfaceType:
 					trace("Interface", obj.Name)
 					scalars[structName] = &Scalar{
 						Name:    structName,
 						Package: packageName,
 						Type:    ScalarTypeAny,
 					}
-				case "*ast.Ident":
+				case *ast.Ident:
 					trace("Scalar", obj.Name)
-					scalarIdent := typeSpec.Type.(*ast.Ident)
 					scalars[structName] = &Scalar{
 						Name:    structName,
 						Package: packageName,
-						Type:    getScalarFromAstIdent(scalarIdent),
+						Type:    getScalarFromAstIdent(typeSpecType),
 					}
-				case "*ast.ArrayType":
+				case *ast.ArrayType:
 					arrayValue := &Value{}
 					arrayValue.loadExpr(typeSpec.Type, fileImports)
 					structs[structName] = &Struct{
@@ -442,7 +431,7 @@ func extractTypes(file *ast.File, packageName string, structs map[string]*Struct
 						Package: packageName,
 						Array:   arrayValue.Array,
 					}
-				case "*ast.MapType":
+				case *ast.MapType:
 					mapValue := &Value{}
 					mapValue.loadExpr(typeSpec.Type, fileImports)
 					structs[structName] = &Struct{
@@ -451,7 +440,7 @@ func extractTypes(file *ast.File, packageName string, structs map[string]*Struct
 						Map:     mapValue.Map,
 					}
 				default:
-					fmt.Println("	ignoring", obj.Name, typeSpecRefl.Type().String())
+					fmt.Println("	ignoring", obj.Name, reflect.ValueOf(typeSpec.Type).Type().String())
 				}
 			}
 		}
diff --git a/typescript.go b/typescript.go
index 5ba6ee9..69f29d1 100644
--- a/typescript.go
+++ b/typescript.go
@@ -102,11 +102,10 @@ func (v *Value) tsType(mappings config.TypeScriptMappings, scalars map[string]*S
 	default:
 		ts.app("any")
 	}
-	return
 }
 
 func tsTypeFromScalarType(scalarType ScalarType) string {
-	switch scalarType {
+	switch scalarType { //nolint:exhaustive
 	case ScalarTypeByte:
 		return "string"
 	case ScalarTypeBool:
@@ -267,7 +266,6 @@ func renderTypescriptStructsToPackages(
 						packageCodeMap[packageConstantTypeName].l(enum + " = " + packageConstantTypeValuesList[k].Value + ",")
 					}
 					packageCodeMap[packageConstantTypeName].ind(-1).l("}")
-
 				} else if packageConstantTypeValuesString, ok := packageConstantTypeValues.(string); ok {
 					packageCodeMap[packageConstantTypeName].l("export type " + packageConstantTypeName + " = " + packageConstantTypeValuesString)
 				}
@@ -279,7 +277,6 @@ func renderTypescriptStructsToPackages(
 		if !ok {
 			mappedTypeScript[goPackage] = map[string]*code{}
 		}
-		return
 	}
 	for _, mapping := range mappings {
 		for structName, structCode := range codeMap[mapping.GoPackage] {
@@ -296,9 +293,7 @@ func split(str string, seps []string) []string {
 	for _, sep := range seps {
 		var nextStrs []string
 		for _, str := range strs {
-			for _, part := range strings.Split(str, sep) {
-				nextStrs = append(nextStrs, part)
-			}
+			nextStrs = append(nextStrs, strings.Split(str, sep)...)
 		}
 		strs = nextStrs
 		res = nextStrs
diff --git a/typscriptclient.go b/typscriptclient.go
index e768798..78b171f 100644
--- a/typscriptclient.go
+++ b/typscriptclient.go
@@ -14,8 +14,8 @@ func renderTypescriptClient(service *Service, mappings config.TypeScriptMappings
 	ts.l("export class " + clientName + " {")
 
 	ts.ind(1)
-	//ts.l(`static defaultInst = new ` + clientName + `()`)
-	//ts.l(`constructor(public endpoint = "` + service.Endpoint + `") {}`)
+	// ts.l(`static defaultInst = new ` + clientName + `()`)
+	// ts.l(`constructor(public endpoint = "` + service.Endpoint + `") {}`)
 	ts.l(`public static defaultEndpoint = "` + service.Endpoint + `";`)
 	ts.l("constructor(")
 	ts.ind(1)