153 lines
2.9 KiB
Go
153 lines
2.9 KiB
Go
package client
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"github.com/pkg/errors"
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"gitlab.com/wpetit/goweb/api"
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"gitlab.com/wpetit/goweb/logger"
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)
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type Client struct {
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http *http.Client
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defaultOpts Options
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serverURL string
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}
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func (c *Client) ServerURL() string {
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return c.serverURL
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}
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func (c *Client) apiGet(ctx context.Context, path string, result any, funcs ...OptionFunc) error {
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if err := c.apiDo(ctx, http.MethodGet, path, nil, result, funcs...); err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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func (c *Client) apiPost(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
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if err := c.apiDo(ctx, http.MethodPost, path, payload, result, funcs...); err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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func (c *Client) apiPut(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
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if err := c.apiDo(ctx, http.MethodPut, path, payload, result, funcs...); err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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func (c *Client) apiDelete(ctx context.Context, path string, payload any, result any, funcs ...OptionFunc) error {
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if err := c.apiDo(ctx, http.MethodDelete, path, payload, result, funcs...); err != nil {
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return errors.WithStack(err)
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}
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return nil
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}
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func (c *Client) apiDo(ctx context.Context, method string, path string, payload any, response any, funcs ...OptionFunc) error {
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opts := c.defaultOptions()
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for _, fn := range funcs {
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fn(opts)
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}
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url := c.serverURL + path
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logger.Debug(
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ctx, "new http request",
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logger.F("method", method),
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logger.F("url", url),
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logger.F("payload", payload),
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)
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var buf bytes.Buffer
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encoder := json.NewEncoder(&buf)
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if err := encoder.Encode(payload); err != nil {
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return errors.WithStack(err)
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}
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req, err := http.NewRequest(method, url, &buf)
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if err != nil {
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return errors.WithStack(err)
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}
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for key, values := range opts.Headers {
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for _, v := range values {
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req.Header.Add(key, v)
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}
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}
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res, err := c.http.Do(req)
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if err != nil {
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return errors.WithStack(err)
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}
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defer res.Body.Close()
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data, err := io.ReadAll(res.Body)
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if err != nil {
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return errors.WithStack(err)
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}
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if err := json.Unmarshal(data, &response); err != nil {
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return errors.Wrapf(err, "could not parse json: got '%s'", data)
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}
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return nil
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}
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func (c *Client) defaultOptions() *Options {
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return &Options{
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Headers: c.defaultOpts.Headers,
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}
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}
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func withResponse[T any]() struct {
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Data T
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Error *api.Error
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} {
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return struct {
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Data T
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Error *api.Error
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}{}
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}
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func joinSlice[T any](items []T) string {
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str := ""
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for idx, item := range items {
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if idx != 0 {
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str += ","
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}
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str += fmt.Sprintf("%v", item)
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}
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return str
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}
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func New(serverURL string, funcs ...OptionFunc) *Client {
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opts := Options{}
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for _, fn := range funcs {
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fn(&opts)
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}
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return &Client{
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serverURL: serverURL,
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http: &http.Client{},
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defaultOpts: opts,
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}
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}
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