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rpc.go
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rpc.go
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/*
* Copyright (c) 2020 Baidu, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package client
import (
"encoding/json"
"fmt"
"net/url"
"github.com/baidu/easyfaas/pkg/rest"
"github.com/baidu/easyfaas/pkg/controller/rtctrl"
"github.com/baidu/easyfaas/pkg/api"
"github.com/baidu/easyfaas/pkg/util/logs"
"github.com/valyala/fasthttp"
)
type ControllerClient struct {
client rest.FastHTTPClient
scheme string
host string
prefix string
version string
}
func NewControllerClient(runOptions *ControllerClientOptions) (c *ControllerClient, err error) {
u, err := url.Parse(runOptions.Host)
if err != nil {
return nil, InvaildConfigError{Reason: fmt.Sprintf("invaild host %s", runOptions.Host)}
}
client := rest.NewFastClient(u.Host)
return &ControllerClient{
client: client,
scheme: u.Scheme,
prefix: u.Path,
version: "v1",
host: u.Host,
}, nil
}
func (c *ControllerClient) Invoke(ir *api.InvokeRequest) (response *api.InvokeResponse, err error) {
response = api.NewInvokeResponse()
req := fasthttp.AcquireRequest()
endpoint := c.host
if c.prefix != "" {
endpoint += c.prefix
}
p := fmt.Sprintf("%s://%s/%s/functions/%s/invocations", c.scheme, endpoint, c.version, ir.FunctionBRN)
//添加query参数
if ir.Queries != nil && len(ir.Queries.Encode()) > 0 {
p += "?" + ir.Queries.Encode()
}
req.SetRequestURI(p)
if ir.Headers != nil {
for k, v := range ir.Headers {
req.Header.Set(k, v)
}
}
req.Header.SetHost(c.host)
req.Header.SetMethod("POST")
req.Header.SetContentType("application/json")
req.Header.Set(api.HeaderXRequestID, ir.RequestID)
req.Header.Set(api.HeaderXAccountID, ir.UserID)
if ir.Authorization != "" {
req.Header.Set(api.HeaderAuthorization, ir.Authorization)
}
req.Header.Set(api.HeaderInvokeType, ir.InvokeType)
req.Header.Set(api.BceFaasTriggerKey, ir.TriggerType)
req.Header.Set(api.HeaderLogType, string(ir.LogType))
if ir.LogToBody {
req.Header.Set(api.HeaderLogToBody, "true")
}
if ir.Body != nil {
req.SetBodyString(*ir.Body)
}
if ir.Body != nil {
req.SetBodyString(*ir.Body)
}
resp, err := c.client.Do(req)
if err != nil {
logs.Errorf("unexpected minikun client error: %s", err)
// TODO: handler unexpected error
return
}
response.SetStatusCode(resp.StatusCode())
response.SetBody(resp.Body())
resp.Header.VisitAll(func(key, value []byte) {
response.SetHeader(string(key), string(value))
})
return
}
func (c *ControllerClient) ListRuntimes() ([]*rtctrl.RuntimeInfo, error) {
rts := make([]*rtctrl.RuntimeInfo, 0)
req := fasthttp.AcquireRequest()
p := fmt.Sprintf("%s://%s/%s/runtimes", c.scheme, c.host, c.version)
req.SetRequestURI(p)
req.Header.SetHost(c.host)
req.Header.SetMethod("GET")
req.Header.SetContentType("application/json")
resp, err := c.client.Do(req)
if err != nil {
logs.Errorf("unexpected minikun client error: %s", err)
// TODO: handler unexpected error
return nil, err
}
err = json.Unmarshal(resp.Body(), &rts)
if err != nil {
logs.Errorf("json unmarshal err :%v", err)
return nil, err
}
return rts, nil
}