Add templateData to api sign request.

api/sign.go

@@ -2,6 +2,7 @@ package api
 
 import (
 	"crypto/tls"
+	"encoding/json"
 	"net/http"
 
 	"github.com/smallstep/certificates/authority/provisioner"
@@ -15,6 +16,7 @@ type SignRequest struct {
 	OTT          string             `json:"ott"`
 	NotAfter     TimeDuration       `json:"notAfter"`
 	NotBefore    TimeDuration       `json:"notBefore"`
+	TemplateData json.RawMessage    `json:"templateData"`
 }
 
 // Validate checks the fields of the SignRequest and returns nil if they are ok
@@ -61,6 +63,7 @@ func (h *caHandler) Sign(w http.ResponseWriter, r *http.Request) {
 	opts := provisioner.Options{
 		NotBefore:    body.NotBefore,
 		NotAfter:     body.NotAfter,
+		TemplateData: body.TemplateData,
 	}
 
 	signOpts, err := h.Authority.AuthorizeSign(body.OTT)