Use google auth token source to generate bearer tokens

go.mod

@@ -25,19 +25,30 @@ require (
 	github.com/stretchr/testify v1.9.0
 	golang.org/x/exp v0.0.0-20240707233637-46b078467d37
 	golang.org/x/mod v0.19.0
+	google.golang.org/api v0.189.0
 	gopkg.in/go-playground/validator.v9 v9.31.0
+
 )
 
 require (
+	cloud.google.com/go/auth v0.7.2 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.3 // indirect
+	cloud.google.com/go/compute/metadata v0.5.0 // indirect
 	github.com/antchfx/xpath v1.3.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.22.0 // indirect
 	github.com/gofrs/uuid v4.4.0+incompatible // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
 	github.com/jellydator/ttlcache/v3 v3.2.0 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
@@ -51,11 +62,19 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/samber/lo v1.45.0 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
 	golang.org/x/crypto v0.25.0 // indirect
 	golang.org/x/net v0.27.0 // indirect
+	golang.org/x/oauth2 v0.21.0 // indirect
 	golang.org/x/sync v0.7.0 // indirect
 	golang.org/x/sys v0.22.0 // indirect
 	golang.org/x/text v0.16.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240722135656-d784300faade // indirect
+	google.golang.org/grpc v1.64.1 // indirect
 	google.golang.org/protobuf v1.34.2 // indirect
 	gopkg.in/go-playground/assert.v1 v1.2.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect