use github.com/pkg/errors

go.mod

@@ -5,6 +5,7 @@ go 1.14
 require (
 	github.com/golang-jwt/jwt v3.2.1+incompatible
 	github.com/google/go-cmp v0.5.6
+	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.7.0 // indirect
 	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a // indirect
 	gopkg.in/square/go-jose.v2 v2.5.1

go.sum

@@ -2,10 +2,10 @@ 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/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c=
 github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 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/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

jwtmiddleware.go

@@ -2,10 +2,11 @@ package jwtmiddleware
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"net/http"
 	"strings"
+
+	"github.com/pkg/errors"
 )
 
 var (

jwtmiddleware_test.go

@@ -2,7 +2,6 @@ package jwtmiddleware
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"io/ioutil"
 	"net/http"
@@ -12,6 +11,7 @@ import (
 
 	"github.com/auth0/go-jwt-middleware/validate/josev2"
 	"github.com/google/go-cmp/cmp"
+	"github.com/pkg/errors"
 	"gopkg.in/square/go-jose.v2"
 	"gopkg.in/square/go-jose.v2/jwt"
 )

validate/josev2/doc.go

@@ -4,7 +4,6 @@ the Square go-jose package version 2.
 
 The implementation handles some nuances around JWTs and supports:
 - a key func to pull the key(s) used to verify the token signature
-// TODO(joncarl): maybe we should provide a high level helper func for the above
 - verifying the signature algorithm is what it should be
 - validation of "regular" claims
 - validation of custom claims

validate/josev2/examples/main.go

@@ -3,13 +3,13 @@ package main
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"net/http"
 	"time"
 
 	jwtmiddleware "github.com/auth0/go-jwt-middleware"
 	"github.com/auth0/go-jwt-middleware/validate/josev2"
+	"github.com/pkg/errors"
 	"gopkg.in/square/go-jose.v2"
 	"gopkg.in/square/go-jose.v2/jwt"
 )

validate/josev2/josev2.go

@@ -3,14 +3,14 @@ package josev2
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"net/http"
 	"net/url"
 	"sync"
 	"time"
 
 	"github.com/auth0/go-jwt-middleware/internal/oidc"
+	"github.com/pkg/errors"
 	"gopkg.in/square/go-jose.v2"
 	"gopkg.in/square/go-jose.v2/jwt"
 )
@@ -98,7 +98,6 @@ type Validator struct {
 	// With josev2 `jose.JSONWebKeySet` is supported as a return type of
 	// this function which hands off the heavy lifting of determining which
 	// key to used based on the header `kid` to the josev2 library.
-	// TODO(joncarl): provide an example of using a kid
 	keyFunc            func(context.Context) (interface{}, error)
 	signatureAlgorithm jose.SignatureAlgorithm
 

validate/josev2/josev2_test.go

@@ -6,7 +6,6 @@ import (
 	"crypto/rsa"
 	"crypto/x509"
 	"encoding/json"
-	"errors"
 	"math/big"
 	"net/http"
 	"net/http/httptest"
@@ -17,6 +16,7 @@ import (
 
 	"github.com/auth0/go-jwt-middleware/internal/oidc"
 	"github.com/google/go-cmp/cmp"
+	"github.com/pkg/errors"
 	"gopkg.in/square/go-jose.v2"
 	"gopkg.in/square/go-jose.v2/jwt"
 )

validate/jwt-go/examples/main.go

@@ -3,13 +3,13 @@ package main
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"net/http"
 
 	jwtmiddleware "github.com/auth0/go-jwt-middleware"
 	jwtgo "github.com/auth0/go-jwt-middleware/validate/jwt-go"
 	"github.com/golang-jwt/jwt"
+	"github.com/pkg/errors"
 )
 
 // CustomClaimsExample contains custom data we want from the token.

validate/jwt-go/jwtgo.go

@@ -2,10 +2,10 @@ package jwtgo
 
 import (
 	"context"
-	"errors"
 	"fmt"
 
 	"github.com/golang-jwt/jwt"
+	"github.com/pkg/errors"
 )
 
 // CustomClaims defines any custom data / claims wanted. The validator will

validate/jwt-go/jwtgo_test.go

@@ -2,11 +2,11 @@ package jwtgo
 
 import (
 	"context"
-	"errors"
 	"testing"
 
 	"github.com/golang-jwt/jwt"
 	"github.com/google/go-cmp/cmp"
+	"github.com/pkg/errors"
 )
 
 type testingCustomClaims struct {