top-github/github/github.go at master · ePlus-DEV/top-github · GitHub

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package github

import (

"encoding/json"

"fmt"

"log"

"net/http"

"regexp"

"strings"

"time"

"most-active-github-users-counter/net"

)

const root string = "https://api.github.com/"

type HTTPGithubClient struct {

wrappers []net.Wrapper

}

func (client HTTPGithubClient) Request(url string, body string) ([]byte, error) {

httpClient := &http.Client{}

var req *http.Request

var err error

if body != "" {

req, err = http.NewRequest("POST", url, strings.NewReader(body))

} else {

req, err = http.NewRequest("GET", url, nil)

}

if err != nil {

return []byte{}, err

}

return net.Compose(client.wrappers...)(net.MakeRequester(httpClient))(req)

}

func (client HTTPGithubClient) CurrentUser() (User, error) {

body, err := client.Request(fmt.Sprintf("%suser", root), "")

if err != nil {

return User{}, err

}

user := User{}

if err := json.Unmarshal(body, &user); err != nil {

return User{}, err

}

return user, nil

}

func (client HTTPGithubClient) User(login string) (User, error) {

body, err := client.Request(fmt.Sprintf("%susers/%s", root, login), "")

if err != nil {

return User{}, err

}

user := User{}

if err := json.Unmarshal(body, &user); err != nil {

return User{}, err

}

return user, nil

}

func (client HTTPGithubClient) SearchUsers(query UserSearchQuery) (GithubSearchResults, error) {

users := []User{}

userLogins := map[string]bool{}

totalCount := 0

minFollowerCount := -1

maxPerQuery := 1000

perPage := 5

totalUsersCount := 0

retryCount := 0

maxRetryCount := 10

Pages:

for totalCount < query.MaxUsers {

previousCursor := ""

followerCountQueryStr := ""

if minFollowerCount >= 0 {

followerCountQueryStr = fmt.Sprintf(" followers:<%d", minFollowerCount)

}

for currentPage := 1; currentPage <= (maxPerQuery / perPage); currentPage++ {

cursorQueryStr := ""

if previousCursor != "" {

cursorQueryStr = fmt.Sprintf(", after: \\\"%s\\\"", previousCursor)

}

graphQlString := fmt.Sprintf(`{ "query": "query {

search(type: USER, query:\"%s%s sort:%s-%s\", first: %d%s) {

userCount

edges {

node {

__typename

... on User {

avatarUrl,

name,

company,

organizations(first: 100) {

nodes {

}

followers {

totalCount

}

contributionsCollection {

contributionCalendar {

totalContributions

totalCommitContributions,

totalPullRequestContributions,

restrictedContributionsCount

}

cursor

}

}" }`, query.Q, followerCountQueryStr, query.Sort, query.Order, perPage, cursorQueryStr)

re := regexp.MustCompile(`\r?\n`)

graphQlString = re.ReplaceAllString(graphQlString, " ")

body, err := client.Request("https://api.github.com/graphql", graphQlString)

if err != nil {

retryCount++

if retryCount < maxRetryCount {

log.Println("error making graphql request... retrying")

time.Sleep(10 * time.Second)

continue Pages

} else {

log.Fatalln("Too many errors received. Quitting.")

}

var response interface{}

if err := json.Unmarshal(body, &response); err != nil {

retryCount++

if retryCount < maxRetryCount {

log.Println("error unmarshalling JSON response... retrying")

time.Sleep(10 * time.Second)

continue Pages

} else {

log.Fatalln("Too many errors received. Quitting.")

}

rootNode := response.(map[string]interface{})

if val, ok := rootNode["errors"]; ok {

retryCount++

if retryCount < maxRetryCount {

log.Printf("Received error response (retrying): %+v", val)

time.Sleep(10 * time.Second)

continue Pages

} else {

log.Fatalln("Too many errors received. Quitting.")

}

dataNode, ok := rootNode["data"].(map[string]interface{})

if !ok {

retryCount++

errorMsg := strPropOrEmpty(rootNode, "message")

if errorMsg != "" {

log.Printf("Error accessing data element. Message: %s", errorMsg)

} else {

log.Println("Error accessing data element")

}

if retryCount < maxRetryCount {

waitDuration := 10 * time.Second

if strings.Contains(strings.ToLower(errorMsg), "secondary rate limit") {

waitDuration = 65 * time.Second

}

time.Sleep(waitDuration)

continue Pages

} else {

log.Fatalln("Too many errors received. Quitting.")

}

searchNode := dataNode["search"].(map[string]interface{})

totalUsersCount = int(searchNode["userCount"].(float64))

edgeNodes := searchNode["edges"].([]interface{})

if len(edgeNodes) == 0 {

break Pages

}

totalCount += len(edgeNodes)

Edges:

for _, edge := range edgeNodes {

edgeNode := edge.(map[string]interface{})

userNode := edgeNode["node"].(map[string]interface{})

typename := userNode["__typename"].(string)

if typename != "User" {

continue Edges

}

avatarURL := userNode["avatarUrl"].(string)

name := strPropOrEmpty(userNode, "name")

company := strPropOrEmpty(userNode, "company")

organizations := []string{}

orgNodes := userNode["organizations"].(map[string]interface{})["nodes"].([]interface{})

for _, orgNode := range orgNodes {

organizations = append(organizations, orgNode.(map[string]interface{})["login"].(string))

}

followerCount := int(userNode["followers"].(map[string]interface{})["totalCount"].(float64))

contributionsCollection := userNode["contributionsCollection"].(map[string]interface{})

contributionCount := int(contributionsCollection["contributionCalendar"].(map[string]interface{})["totalContributions"].(float64))

privateContributionCount := int(contributionsCollection["restrictedContributionsCount"].(float64))

commitsCount := int(contributionsCollection["totalCommitContributions"].(float64))

pullRequestsCount := int(contributionsCollection["totalPullRequestContributions"].(float64))

user := User{

AvatarURL: avatarURL,

Name: name,

Company: company,

Organizations: organizations,

FollowerCount: followerCount,

ContributionCount: contributionCount,

PublicContributionCount: (contributionCount - privateContributionCount),

PrivateContributionCount: privateContributionCount,

CommitsCount: commitsCount,

PullRequestsCount: pullRequestsCount}

if !userLogins[login] {

userLogins[login] = true

users = append(users, user)

}

previousCursor = edgeNode["cursor"].(string)

minFollowerCount = int(followerCount)

}

return GithubSearchResults{

Users: users,

MinimumFollowerCount: minFollowerCount,

TotalUserCount: totalUsersCount}, nil

}

func strPropOrEmpty(obj map[string]interface{}, prop string) string {

switch t := obj[prop].(type) {

case string:

return t

default:

return ""

}

func (client HTTPGithubClient) Organizations(login string) ([]string, error) {

url := fmt.Sprintf("https://api.github.com/users/%s/orgs", login)

body, err := client.Request(url, "")

if err != nil {

log.Fatalf("error requesting organizations for user %+v", login)

return []string{}, err

}

orgResp := []OrgResponse{}

err = json.Unmarshal(body, &orgResp)

if err != nil {

log.Fatalf("error parsing organizations JSON for user %+v", login)

return []string{}, err

}

orgs := []string{}

for _, org := range orgResp {

orgs = append(orgs, org.Organization)

}

return orgs, err

}

type OrgResponse struct {

Organization string `json:"login"`

}

func NewGithubClient(wrappers ...net.Wrapper) HTTPGithubClient {

return HTTPGithubClient{wrappers: wrappers}

}

type User struct {

AvatarURL string

Name string

Company string

Organizations []string

FollowerCount int

ContributionCount int

PublicContributionCount int

PrivateContributionCount int

CommitsCount int

PullRequestsCount int

}

type UserSearchQuery struct {

Q string

Sort string

Order string

MaxUsers int

}

type GithubSearchResults struct {

Users []User

MinimumFollowerCount int

TotalUserCount int

}

top-github/github/github.go at master · ePlus-DEV/top-github · GitHub

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