add ability to redefine jwt query name

auth.go

@@ -44,6 +44,7 @@ type Opts struct {
 	JWTHeaderKey   string // default "X-JWT"
 	XSRFCookieName string // default "XSRF-TOKEN"
 	XSRFHeaderKey  string // default "X-XSRF-TOKEN"
+	JWTQuery       string // default "token"
 
 	Issuer string // optional value for iss claim, usually the application name, default "go-pkgz/auth"
 
@@ -94,6 +95,7 @@ func NewService(opts Opts) (res *Service) {
 		JWTHeaderKey:   opts.JWTHeaderKey,
 		XSRFCookieName: opts.XSRFCookieName,
 		XSRFHeaderKey:  opts.XSRFHeaderKey,
+		JWTQuery:       opts.JWTQuery,
 		Issuer:         res.issuer,
 		AudienceReader: opts.AudienceReader,
 	})

token/jwt.go

@@ -44,7 +44,7 @@ const (
 	defaultTokenDuration  = time.Minute * 15
 	defaultCookieDuration = time.Hour * 24 * 31
 
-	tokenQuery = "token"
+	defaultTokenQuery = "token"
 )
 
 // Opts holds constructor params
@@ -61,7 +61,7 @@ type Opts struct {
 	JWTHeaderKey   string
 	XSRFCookieName string
 	XSRFHeaderKey  string
-
+	JWTQuery       string
 	AudienceReader Audience // allowed aud values
 	Issuer         string   // optional value for iss claim, usually application name
 }
@@ -80,6 +80,7 @@ func NewService(opts Opts) *Service {
 	setDefault(&res.JWTHeaderKey, defaultJWTHeaderKey)
 	setDefault(&res.XSRFCookieName, defaultXSRFCookieName)
 	setDefault(&res.XSRFHeaderKey, defaultXSRFHeaderKey)
+	setDefault(&res.JWTQuery, defaultTokenQuery)
 	setDefault(&res.Issuer, defaultIssuer)
 
 	if opts.TokenDuration == 0 {
@@ -220,7 +221,7 @@ func (j *Service) Get(r *http.Request) (Claims, string, error) {
 	tokenString := ""
 
 	// try to get from "token" query param
-	if tkQuery := r.URL.Query().Get(tokenQuery); tkQuery != "" {
+	if tkQuery := r.URL.Query().Get(j.JWTQuery); tkQuery != "" {
 		tokenString = tkQuery
 	}