diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..87b3844
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,16 @@
+module github.com/IntuitDeveloper/OAuth2-Go.git
+
+go 1.18
+
+require (
+	github.com/IntuitDeveloper/OAuth2-Go v0.0.0-20180522130730-95e7b650e6d6
+	github.com/patrickmn/go-cache v2.1.0+incompatible
+	github.com/twinj/uuid v1.0.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/myesui/uuid v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/stretchr/testify.v1 v1.2.2 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..a15c3de
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,14 @@
+github.com/IntuitDeveloper/OAuth2-Go v0.0.0-20180522130730-95e7b650e6d6 h1:/V/98ZhG0fLT2cSq8b6qECMSaJkypuD3SdNSRRSoDHo=
+github.com/IntuitDeveloper/OAuth2-Go v0.0.0-20180522130730-95e7b650e6d6/go.mod h1:Aoq7T2ZQfQ+HirG/3N6e8sQvdB0w4WK2xBqyG7gQRl4=
+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/myesui/uuid v1.0.0 h1:xCBmH4l5KuvLYc5L7AS7SZg9/jKdIFubM7OVoLqaQUI=
+github.com/myesui/uuid v1.0.0/go.mod h1:2CDfNgU0LR8mIdO8vdWd8i9gWWxLlcoIGGpSNgafq84=
+github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
+github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/twinj/uuid v1.0.0 h1:fzz7COZnDrXGTAOHGuUGYd6sG+JMq+AoE7+Jlu0przk=
+github.com/twinj/uuid v1.0.0/go.mod h1:mMgcE1RHFUFqe5AfiwlINXisXfDGro23fWdPUfOMjRY=
+gopkg.in/stretchr/testify.v1 v1.2.2 h1:yhQC6Uy5CqibAIlk1wlusa/MJ3iAN49/BsR/dCCKz3M=
+gopkg.in/stretchr/testify.v1 v1.2.2/go.mod h1:QI5V/q6UbPmuhtm10CaFZxED9NreB8PnFYN9JcR6TxU=
diff --git a/handlers/bearerToken.go b/handlers/bearerToken.go
index 5047353..34190bb 100644
--- a/handlers/bearerToken.go
+++ b/handlers/bearerToken.go
@@ -36,6 +36,9 @@ func RetrieveBearerToken(code string) (*BearerTokenResponse, error) {
 	request.Header.Set("Authorization", "Basic "+basicAuth())
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
diff --git a/handlers/discovery.go b/handlers/discovery.go
index 0ec87d6..f71ab9d 100644
--- a/handlers/discovery.go
+++ b/handlers/discovery.go
@@ -24,6 +24,9 @@ func CallDiscoveryAPI() {
 	request.Header.Set("accept", "application/json")
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
diff --git a/handlers/jwks.go b/handlers/jwks.go
index f06ee11..37ec06c 100644
--- a/handlers/jwks.go
+++ b/handlers/jwks.go
@@ -24,6 +24,9 @@ func CallJWKSAPI() (*JWKSResponse, error) {
 	request.Header.Set("accept", "application/json")
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
diff --git a/handlers/qboCompanyInfo.go b/handlers/qboCompanyInfo.go
index 7f54b3c..b92545a 100644
--- a/handlers/qboCompanyInfo.go
+++ b/handlers/qboCompanyInfo.go
@@ -33,6 +33,9 @@ func GetCompanyInfo(w http.ResponseWriter, r *http.Request) {
 	request.Header.Set("Authorization", "Bearer "+accessToken)
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
diff --git a/handlers/refreshToken.go b/handlers/refreshToken.go
index d03f38a..8a79ece 100644
--- a/handlers/refreshToken.go
+++ b/handlers/refreshToken.go
@@ -36,6 +36,9 @@ func RefreshToken(w http.ResponseWriter, r *http.Request) {
 	request.Header.Set("Authorization", "Basic "+basicAuth())
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
diff --git a/handlers/revokeToken.go b/handlers/revokeToken.go
index 459c033..4e0eec6 100644
--- a/handlers/revokeToken.go
+++ b/handlers/revokeToken.go
@@ -35,6 +35,9 @@ func RevokeToken(w http.ResponseWriter, r *http.Request) {
 	request.Header.Set("Authorization", "Basic "+basicAuth())
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 
 	responseString := map[string]string{"response": "Revoke successful"}
diff --git a/handlers/userInfo.go b/handlers/userInfo.go
index b22c335..0c05fcf 100644
--- a/handlers/userInfo.go
+++ b/handlers/userInfo.go
@@ -26,6 +26,9 @@ func GetUserInfo(w http.ResponseWriter, r *http.Request, accessToken string) (*U
 	request.Header.Set("Authorization", "Bearer "+accessToken)
 
 	resp, err := client.Do(request)
+	if err != nil {
+		log.Fatalln(err)
+	}
 	defer resp.Body.Close()
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {