func (c *Client) GetFrontend(fk engine.FrontendKey) (*engine.Frontend, error) {
response, err := c.Get(c.endpoint("frontends", fk.Id), url.Values{})
if err != nil {
return nil, err
}
return engine.FrontendFromJSON(c.Registry.GetRouter(), response)
}
func (n *ng) parseFrontends(node *etcd.Node, skipMiddlewares ...bool) ([]engine.FrontendSpec, error) {
frontendSpecs := make([]engine.FrontendSpec, len(node.Nodes))
for idx, node := range node.Nodes {
frontendId := suffix(node.Key)
for _, node := range node.Nodes {
switch suffix(node.Key) {
case "frontend":
frontend, err := engine.FrontendFromJSON(n.registry.GetRouter(), []byte(node.Value), frontendId)
if err != nil {
return nil, err
}
frontendSpecs[idx].Frontend = *frontend
case "middlewares":
if len(skipMiddlewares) == 1 && skipMiddlewares[0] {
break
}
middlewares := make([]engine.Middleware, len(node.Nodes))
for idx, node := range node.Nodes {
middlewareId := suffix(node.Key)
middleware, err := engine.MiddlewareFromJSON([]byte(node.Value), n.registry.GetSpec, middlewareId)
if err != nil {
return nil, err
}
middlewares[idx] = *middleware
}
frontendSpecs[idx].Middlewares = middlewares
}
}
if frontendSpecs[idx].Frontend.Id != frontendId {
return nil, fmt.Errorf("Frontend %s parameters missing", frontendId)
}
}
return frontendSpecs, nil
}
func (n *ng) GetFrontend(key engine.FrontendKey) (*engine.Frontend, error) {
frontendKey := n.path("frontends", key.Id, "frontend")
bytes, err := n.getVal(frontendKey)
if err != nil {
return nil, err
}
return engine.FrontendFromJSON(n.registry.GetRouter(), []byte(bytes), key.Id)
}
func parseFrontendPack(router router.Router, v []byte) (*engine.Frontend, time.Duration, error) {
var fp frontendReadPack
if err := json.Unmarshal(v, &fp); err != nil {
return nil, 0, err
}
if len(fp.Frontend) == 0 {
return nil, 0, &scroll.MissingFieldError{Field: "Frontend"}
}
f, err := engine.FrontendFromJSON(router, fp.Frontend)
if err != nil {
return nil, 0, err
}
var ttl time.Duration
if fp.TTL != "" {
ttl, err = time.ParseDuration(fp.TTL)
if err != nil {
return nil, 0, err
}
}
return f, ttl, nil
}
func (n *ng) parseFrontends(keyValues []*mvccpb.KeyValue, skipMiddlewares ...bool) ([]engine.FrontendSpec, error) {
frontendSpecs := []engine.FrontendSpec{}
for _, keyValue := range keyValues {
if frontendIds := frontendIdRegex.FindStringSubmatch(string(keyValue.Key)); len(frontendIds) == 2 {
frontendId := frontendIds[1]
frontend, err := engine.FrontendFromJSON(n.registry.GetRouter(), []byte(keyValue.Value), frontendId)
if err != nil {
return nil, err
}
frontendSpec := engine.FrontendSpec{
Frontend: *frontend,
}
if len(skipMiddlewares) != 1 || !skipMiddlewares[0] {
//get all keys under this frontend
subKeyValues := filterByPrefix(keyValues, string(keyValue.Key)) //Get all keys below this frontend "/vulcand/frontends/foo/*"
middlewares := []engine.Middleware{}
for _, subKeyValue := range subKeyValues {
if middlewareId := suffix(string(subKeyValue.Key)); suffix(prefix(string(subKeyValue.Key))) == "middlewares" {
middleware, err := engine.MiddlewareFromJSON([]byte(subKeyValue.Value), n.registry.GetSpec, middlewareId)
if err != nil {
return nil, err
}
middlewares = append(middlewares, *middleware)
}
}
frontendSpec.Middlewares = middlewares
}
frontendSpecs = append(frontendSpecs, frontendSpec)
}
}
return frontendSpecs, nil
}