init; project structure & bybit provider

internal/provider/bybit/request.go

@@ -0,0 +1,138 @@
+package bybit
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+)
+
+type response struct {
+	RetCode    int             `json:"retCode"`
+	RetMsg     string          `json:"retMsg"`
+	Result     json.RawMessage `json:"result"`
+	Time       int64           `json:"time"`
+	RetExtInfo json.RawMessage `json:"retExtInfo"`
+}
+
+func (b *Bybit) makeRequest(ctx context.Context, method string, endpoint string, params any, v any) error {
+	// send request
+	var (
+		body []byte
+		err  error
+	)
+
+	switch method {
+	case http.MethodGet:
+		body, err = b.getRequest(ctx, endpoint, params)
+	case http.MethodPost:
+		body, err = b.postRequest(ctx, endpoint, params)
+	default:
+		return fmt.Errorf("method not correct")
+	}
+	if err != nil {
+		return fmt.Errorf("failed to make request: %w", err)
+	}
+
+	b.log.Debug("bybit request", "endpoint", endpoint, "params", params, "body", string(body))
+
+	var resp response
+	if err := json.Unmarshal(body, &resp); err != nil {
+		return fmt.Errorf("failed to parse response: %w", err)
+	}
+
+	if resp.RetCode != 0 {
+		return fmt.Errorf("response not ok: code: %d, msg: %s, info: %s, result: %s", resp.RetCode, resp.RetMsg, resp.RetExtInfo, resp.Result)
+	}
+	if v == nil {
+		return nil
+	}
+	if err := json.Unmarshal(resp.Result, v); err != nil {
+		return fmt.Errorf("failed to parse result: %w", err)
+	}
+
+	return nil
+}
+
+func (b *Bybit) getRequest(ctx context.Context, endPoint string, params any) ([]byte, error) {
+	// params to query
+	queryString := ""
+	if params != nil {
+		b, err := json.Marshal(params)
+		if err != nil {
+			return nil, err
+		}
+		var q map[string]any
+		if err := json.Unmarshal(b, &q); err != nil {
+			return nil, err
+		}
+		query := make(url.Values)
+		for k, v := range q {
+			query.Add(k, fmt.Sprint(v))
+		}
+		queryString = query.Encode()
+	}
+
+	// make request
+	request, err := http.NewRequest("GET", b.cfg.BaseURL+endPoint+"?"+queryString, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to make request: %w", err)
+	}
+
+	request = request.WithContext(ctx)
+
+	request.Header.Set("Content-Type", "application/json")
+	// b.setRequestAPIHeaders(request, []byte(queryString))
+
+	// get response
+	response, err := b.client.Do(request)
+	if err != nil {
+		return nil, fmt.Errorf("failed to make request: %w", err)
+	}
+
+	defer response.Body.Close()
+
+	body, err := io.ReadAll(response.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	return body, nil
+}
+
+func (b *Bybit) postRequest(ctx context.Context, endPoint string, params any) ([]byte, error) {
+	// params to json
+	jsonData, err := json.Marshal(params)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal params: %w", err)
+	}
+
+	// make request
+	request, err := http.NewRequest("POST", b.cfg.BaseURL+endPoint, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("failed to make request: %w", err)
+	}
+
+	request = request.WithContext(ctx)
+
+	request.Header.Set("Content-Type", "application/json")
+	// b.setRequestAPIHeaders(request, jsonData)
+
+	// get response
+	response, err := b.client.Do(request)
+	if err != nil {
+		return nil, fmt.Errorf("failed to make request: %w", err)
+	}
+
+	defer response.Body.Close()
+
+	body, err := io.ReadAll(response.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read response: %w", err)
+	}
+
+	return body, nil
+}