73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
package doc
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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)
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var (
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ErrInternalFailure = errors.New("we did something wrong")
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ErrUpstreamFailure = errors.New("someone else did something wrong")
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)
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type FooClient struct {
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url string
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username string
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password string
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client *http.Client
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}
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func NewFooClient(url, username, password string) *FooClient {
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return &FooClient{
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url: url,
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username: username,
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password: password,
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client: &http.Client{},
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}
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}
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func (fc *FooClient) DoStuff(param string) (string, error) {
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reqBody := struct {
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Param string `json:"param"`
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}{
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Param: param,
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}
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jReqBody, err := json.Marshal(reqBody)
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req, err := http.NewRequest(http.MethodPost, fmt.Sprintf("%s/path", fc.url), bytes.NewBuffer(jReqBody))
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if err != nil {
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return "", fmt.Errorf("%w: %v", ErrInternalFailure, err)
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}
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req.SetBasicAuth(fc.username, fc.password)
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req.Header.Set("Content-Type", "application/json;charset=utf-8")
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resp, err := fc.client.Do(req)
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if err != nil {
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return "", fmt.Errorf("%w: %v", ErrUpstreamFailure, err)
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}
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("%w, server responded with status %d", ErrUpstreamFailure, resp.StatusCode)
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}
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("%w: %v", ErrUpstreamFailure, err)
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}
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var expResp struct {
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Result string `json:"result"`
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}
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err = json.Unmarshal(body, &expResp)
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if err != nil {
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return "", fmt.Errorf("%w: %v", ErrUpstreamFailure, err)
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}
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return expResp.Result, nil
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}
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