feat: initial commit

internal/client/client.go

@@ -0,0 +1,144 @@
+package client
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/api"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+type Client struct {
+	http        *http.Client
+	defaultOpts Options
+	serverURL   string
+}
+
+func (c *Client) apiGet(ctx context.Context, path string, result any, funcs ...OptionFunc) error {
+	if err := c.apiDo(ctx, http.MethodGet, path, nil, result, funcs...); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func (c *Client) apiPost(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
+	if err := c.apiDo(ctx, http.MethodPost, path, payload, result, funcs...); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func (c *Client) apiPut(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
+	if err := c.apiDo(ctx, http.MethodPut, path, payload, result, funcs...); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func (c *Client) apiDelete(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
+	if err := c.apiDo(ctx, http.MethodDelete, path, payload, result, funcs...); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func (c *Client) apiDo(ctx context.Context, method string, path string, payload any, response any, funcs ...OptionFunc) error {
+	opts := c.defaultOptions()
+	for _, fn := range funcs {
+		fn(opts)
+	}
+
+	url := c.serverURL + path
+
+	logger.Debug(
+		ctx, "new http request",
+		logger.F("method", method),
+		logger.F("url", url),
+		logger.F("payload", payload),
+	)
+
+	var buf bytes.Buffer
+
+	encoder := json.NewEncoder(&buf)
+
+	if err := encoder.Encode(payload); err != nil {
+		return errors.WithStack(err)
+	}
+
+	req, err := http.NewRequest(method, url, &buf)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	for key, values := range opts.Headers {
+		for _, v := range values {
+			req.Header.Add(key, v)
+		}
+	}
+
+	res, err := c.http.Do(req)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	defer res.Body.Close()
+
+	decoder := json.NewDecoder(res.Body)
+
+	if err := decoder.Decode(&response); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}
+
+func (c *Client) defaultOptions() *Options {
+	return &Options{
+		Headers: c.defaultOpts.Headers,
+	}
+}
+
+func withResponse[T any]() struct {
+	Data  T
+	Error *api.Error
+} {
+	return struct {
+		Data  T
+		Error *api.Error
+	}{}
+}
+
+func joinSlice[T any](items []T) string {
+	str := ""
+
+	for idx, item := range items {
+		if idx != 0 {
+			str += ","
+		}
+
+		str += fmt.Sprintf("%v", item)
+	}
+
+	return str
+}
+
+func New(serverURL string, funcs ...OptionFunc) *Client {
+	opts := Options{}
+	for _, fn := range funcs {
+		fn(&opts)
+	}
+
+	return &Client{
+		serverURL:   serverURL,
+		http:        &http.Client{},
+		defaultOpts: opts,
+	}
+}

internal/client/options.go

@@ -0,0 +1,24 @@
+package client
+
+import "net/http"
+
+type Options struct {
+	Headers http.Header
+}
+
+type OptionFunc func(*Options)
+
+func WithToken(token string) OptionFunc {
+	return func(o *Options) {
+		if o.Headers == nil {
+			o.Headers = http.Header{}
+		}
+		o.Headers.Set("Authorization", "Bearer "+token)
+	}
+}
+
+func WithHeaders(headers http.Header) OptionFunc {
+	return func(o *Options) {
+		o.Headers = headers
+	}
+}