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main.go
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main.go
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// Copyright 2021 The go-github AUTHORS. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// newfilewithappauth demonstrates the functionality of GitHub's app authentication
// methods by fetching an installation access token and reauthenticating to GitHub
// with OAuth configurations.
package main
import (
"context"
"log"
"net/http"
"os"
"time"
"github.com/bradleyfalzon/ghinstallation/v2"
"github.com/google/go-github/v59/github"
)
func main() {
const gitHost = "https://git.api.com"
privatePem, err := os.ReadFile("path/to/pem")
if err != nil {
log.Fatalf("failed to read pem: %v", err)
}
itr, err := ghinstallation.NewAppsTransport(http.DefaultTransport, 10, privatePem)
if err != nil {
log.Fatalf("failed to create app transport: %v\n", err)
}
itr.BaseURL = gitHost
//create git client with app transport
client, err := github.NewClient(
&http.Client{
Transport: itr,
Timeout: time.Second * 30,
},
).WithEnterpriseURLs(gitHost, gitHost)
if err != nil {
log.Fatalf("failed to create git client for app: %v\n", err)
}
installations, _, err := client.Apps.ListInstallations(context.Background(), &github.ListOptions{})
if err != nil {
log.Fatalf("failed to list installations: %v\n", err)
}
//capture our installationId for our app
//we need this for the access token
var installID int64
for _, val := range installations {
installID = val.GetID()
}
token, _, err := client.Apps.CreateInstallationToken(
context.Background(),
installID,
&github.InstallationTokenOptions{})
if err != nil {
log.Fatalf("failed to create installation token: %v\n", err)
}
apiClient, err := github.NewClient(nil).WithAuthToken(
token.GetToken(),
).WithEnterpriseURLs(gitHost, gitHost)
if err != nil {
log.Fatalf("failed to create new git client with token: %v\n", err)
}
_, resp, err := apiClient.Repositories.CreateFile(
context.Background(),
"repoOwner",
"sample-repo",
"example/foo.txt",
&github.RepositoryContentFileOptions{
Content: []byte("foo"),
Message: github.String("sample commit"),
SHA: nil,
})
if err != nil {
log.Fatalf("failed to create new file: %v\n", err)
}
log.Printf("file written status code: %v", resp.StatusCode)
}