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ghinstallation

GoDoc

ghinstallation provides Transport, which implements http.RoundTripper to provide authentication as an installation for GitHub Apps.

This library is designed to provide automatic authentication for https://github.com/google/go-github or your own HTTP client.

See https://developer.github.com/apps/building-integrations/setting-up-and-registering-github-apps/about-authentication-options-for-github-apps/

Installation

Get the package:

GO111MODULE=on go get -u github.com/bradleyfalzon/ghinstallation/v2

GitHub Example

import "github.com/bradleyfalzon/ghinstallation/v2"

func main() {
    // Shared transport to reuse TCP connections.
    tr := http.DefaultTransport

    // Wrap the shared transport for use with the app ID 1 authenticating with installation ID 99.
    itr, err := ghinstallation.NewKeyFromFile(tr, 1, 99, "2016-10-19.private-key.pem")
    if err != nil {
        log.Fatal(err)
    }

    // Use installation transport with github.com/google/go-github
    client := github.NewClient(&http.Client{Transport: itr})
}

GitHub Enterprise Example

For clients using GitHub Enterprise, set the base URL as follows:

import "github.com/bradleyfalzon/ghinstallation/v2"

const GitHubEnterpriseURL = "https://github.example.com/api/v3"

func main() {
    // Shared transport to reuse TCP connections.
    tr := http.DefaultTransport

    // Wrap the shared transport for use with the app ID 1 authenticating with installation ID 99.
    itr, err := ghinstallation.NewKeyFromFile(tr, 1, 99, "2016-10-19.private-key.pem")
    if err != nil {
        log.Fatal(err)
    }
    itr.BaseURL = GitHubEnterpriseURL

    // Use installation transport with github.com/google/go-github
    client := github.NewEnterpriseClient(GitHubEnterpriseURL, GitHubEnterpriseURL, &http.Client{Transport: itr})
}

What is app ID and installation ID

app ID is the GitHub App ID.
You can check as following :
Settings > Developer > settings > GitHub App > About item

installation ID is a part of WebHook request.
You can get the number to check the request.
Settings > Developer > settings > GitHub Apps > Advanced > Payload in Request tab

WebHook request
...
  "installation": {
    "id": `installation ID`
  }

License

Apache 2.0

Dependencies