146 lines
2.9 KiB
Go
146 lines
2.9 KiB
Go
package api
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"os/user"
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"regexp"
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)
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type graphQLResponse struct {
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Data interface{}
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Errors []struct {
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Message string
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}
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}
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/*
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graphQL usage
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type repoResponse struct {
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Repository struct {
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CreatedAt string
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}
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}
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query := `query {
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repository(owner: "golang", name: "go") {
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createdAt
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}
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}`
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variables := map[string]string{}
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var resp repoResponse
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err := graphql(query, map[string]string{}, &resp)
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if err != nil {
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panic(err)
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}
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fmt.Printf("%+v\n", resp)
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*/
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func graphQL(query string, variables map[string]string, v interface{}) error {
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url := "https://api.github.com/graphql"
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reqBody, err := json.Marshal(map[string]interface{}{"query": query, "variables": variables})
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if err != nil {
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panic(err)
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}
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req, err := http.NewRequest("POST", url, bytes.NewBuffer(reqBody))
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if err != nil {
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panic(err)
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}
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req.Header.Set("Authorization", "token "+getToken())
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req.Header.Set("Content-Type", "application/json; charset=utf-8")
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debugRequest(req, string(reqBody))
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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panic(err)
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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 err
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}
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debugResponse(resp, string(body))
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return handleResponse(resp, body, v)
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}
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func handleResponse(resp *http.Response, body []byte, v interface{}) error {
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success := resp.StatusCode >= 200 && resp.StatusCode < 300
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if success {
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gr := &graphQLResponse{Data: v}
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err := json.Unmarshal(body, &gr)
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if err != nil {
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return err
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}
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if len(gr.Errors) > 0 {
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errorMessages := gr.Errors[0].Message
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for _, e := range gr.Errors[1:] {
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errorMessages += ", " + e.Message
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}
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return fmt.Errorf("graphql error: '%s'", errorMessages)
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}
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return nil
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}
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return handleHTTPError(resp, body)
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}
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func handleHTTPError(resp *http.Response, body []byte) error {
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var message string
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var parsedBody struct {
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Message string `json:"message"`
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}
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err := json.Unmarshal(body, &parsedBody)
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if err != nil {
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message = string(body)
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} else {
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message = parsedBody.Message
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}
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return fmt.Errorf("http error, '%s' failed (%d): '%s'", resp.Request.URL, resp.StatusCode, message)
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}
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func debugRequest(req *http.Request, body string) {
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if _, ok := os.LookupEnv("DEBUG"); !ok {
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return
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}
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fmt.Printf("DEBUG: GraphQL request to %s:\n %s\n\n", req.URL, body)
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}
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func debugResponse(resp *http.Response, body string) {
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if _, ok := os.LookupEnv("DEBUG"); !ok {
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return
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}
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fmt.Printf("DEBUG: GraphQL response:\n%+v\n\n%s\n\n", resp, body)
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}
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// TODO: Everything below this line will be removed when Nate's context work is complete
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func getToken() string {
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usr, err := user.Current()
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if err != nil {
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panic(err)
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}
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content, err := ioutil.ReadFile(usr.HomeDir + "/.config/hub")
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if err != nil {
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panic(err)
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}
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r := regexp.MustCompile(`oauth_token: (\w+)`)
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token := r.FindStringSubmatch(string(content))
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return token[1]
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}
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