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rpc: Support specifying HTTP client in RPC dialing 

Adds a minimal interface that captures http.Client and adds a new method
rpc.DialHTTPClient that takes a client using that interface. The existing
rpc.DialHTTP method is then alternatively implemented by using the new
rpc.DialHTTPClient method provided with a standard *http.Client.
This commit is contained in:
Steven Roose 2018-01-09 12:35:20 +01:00 committed by Steven Roose
parent 0905eda48e
commit 1eb5e2d002
1 changed files with 10 additions and 4 deletions
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14
rpc/http.go
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@ -62,9 +62,10 @@ func (hc *httpConn) Close() error {
return nil
}
// DialHTTP creates a new RPC clients that connection to an RPC server over HTTP.
func DialHTTP(endpoint string) (*Client, error) {
req, err := http.NewRequest("POST", endpoint, nil)
// DialHTTPWithClient creates a new RPC clients that connection to an RPC server over HTTP
// using the provided HTTP Client.
func DialHTTPWithClient(endpoint string, client *http.Client) (*Client, error) {
req, err := http.NewRequest(http.MethodPost, endpoint, nil)
if err != nil {
return nil, err
}
@ -73,10 +74,15 @@ func DialHTTP(endpoint string) (*Client, error) {
initctx := context.Background()
return newClient(initctx, func(context.Context) (net.Conn, error) {
return &httpConn{client: new(http.Client), req: req, closed: make(chan struct{})}, nil
return &httpConn{client: client, req: req, closed: make(chan struct{})}, nil
})
}
// DialHTTP creates a new RPC clients that connection to an RPC server over HTTP.
func DialHTTP(endpoint string) (*Client, error) {
return DialHTTPWithClient(endpoint, new(http.Client))
}
func (c *Client) sendHTTP(ctx context.Context, op *requestOp, msg interface{}) error {
hc := c.writeConn.(*httpConn)
respBody, err := hc.doRequest(ctx, msg)