1 files changed, 107 insertions, 0 deletions
diff --git a/vendor/_nuts/github.com/fabioberger/coinbase-go/rpc.go b/vendor/_nuts/github.com/fabioberger/coinbase-go/rpc.go
new file mode 100644
index 0000000..2fc25e1
--- /dev/null
+++ b/vendor/_nuts/github.com/fabioberger/coinbase-go/rpc.go
@@ -0,0 +1,107 @@
+package coinbase
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+// basePath needed for reading mock JSON files in simulateRequest and for
+// referencing ca-coinbase.crt in OAuthService. Must be fixed path because
+// relative path changes depending on where library called
+var basePath string = os.Getenv("GOPATH") + "/src/github.com/fabioberger/coinbase-go"
+
+// Rpc handles the remote procedure call requests
+type rpc struct {
+	auth authenticator
+	mock bool
+}
+
+// Request sends a request with params marshaled into a JSON payload in the body
+// The response value is marshaled from JSON into the specified holder struct
+func (r rpc) Request(method string, endpoint string, params interface{}, holder interface{}) error {
+
+	jsonParams, err := json.Marshal(params)
+	if err != nil {
+		return err
+	}
+
+	request, err := r.createRequest(method, endpoint, jsonParams)
+	if err != nil {
+		return err
+	}
+
+	var data []byte
+	if r.mock == true { // Mock mode: Replace actual request with expected JSON from file
+		data, err = r.simulateRequest(endpoint, method)
+	} else {
+		data, err = r.executeRequest(request)
+	}
+	if err != nil {
+		return err
+	}
+	if err := json.Unmarshal(data, &holder); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// CreateRequest formats a request with all the necessary headers
+func (r rpc) createRequest(method string, endpoint string, params []byte) (*http.Request, error) {
+
+	endpoint = r.auth.getBaseUrl() + endpoint //BaseUrl depends on Auth type used
+
+	req, err := http.NewRequest(method, endpoint, bytes.NewBuffer(params))
+	if err != nil {
+		return nil, err
+	}
+
+	// Authenticate the request
+	r.auth.authenticate(req, endpoint, params)
+
+	req.Header.Set("User-Agent", "CoinbaseGo/v1")
+	req.Header.Set("Content-Type", "application/json")
+
+	return req, nil
+}
+
+// executeRequest takes a prepared http.Request and returns the body of the response
+// If the response is not of HTTP Code 200, an error is returned
+func (r rpc) executeRequest(req *http.Request) ([]byte, error) {
+	resp, err := r.auth.getClient().Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(resp.Body)
+	bytes := buf.Bytes()
+	if resp.StatusCode != 200 {
+		if len(bytes) == 0 { // Log response body for debugging purposes
+			log.Printf("Response body was empty")
+		} else {
+			log.Printf("Response body:\n\t%s\n", bytes)
+		}
+		return nil, fmt.Errorf("%s %s failed. Response code was %s", req.Method, req.URL, resp.Status)
+	}
+	return bytes, nil
+}
+
+// simulateRequest simulates a request by returning a sample JSON from file
+func (r rpc) simulateRequest(endpoint string, method string) ([]byte, error) {
+	// Test files conform to replacing '/' in endpoint with '_'
+	fileName := strings.Replace(endpoint, "/", "_", -1)
+	// file names also have method type prepended to ensure uniqueness
+	filePath := basePath + "/test_data/" + method + "_" + fileName + ".json"
+	data, err := ioutil.ReadFile(filePath)
+	if err != nil {
+		return nil, err
+	}
+	return data, nil
+}