ghinstallation

package module
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Published: Oct 15, 2020 License: Apache-2.0 Imports: 14 Imported by: 0

README

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:

go get -u github.com/bradleyfalzon/ghinstallation

GitHub Example

import "github.com/bradleyfalzon/ghinstallation"

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"

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

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func GetReadWriter added in v0.1.3

func GetReadWriter(i interface{}) (io.ReadWriter, error)

GetReadWriter converts a body interface into an io.ReadWriter object.

Types

type AppsTransport added in v0.1.2

type AppsTransport struct {
	BaseURL string // BaseURL is the scheme and host for GitHub API, defaults to https://api.github.com
	Client  Client // Client to use to refresh tokens, defaults to http.Client with provided transport
	// contains filtered or unexported fields
}

AppsTransport provides a http.RoundTripper by wrapping an existing http.RoundTripper and provides GitHub Apps authentication as a GitHub App.

Client can also be overwritten, and is useful to change to one which provides retry logic if you do experience retryable errors.

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

func NewAppsTransport added in v0.1.2

func NewAppsTransport(tr http.RoundTripper, appID int64, privateKey []byte) (*AppsTransport, error)

NewAppsTransport returns a AppsTransport using private key. The key is parsed and if any errors occur the error is non-nil.

The provided tr http.RoundTripper should be shared between multiple installations to ensure reuse of underlying TCP connections.

The returned Transport's RoundTrip method is safe to be used concurrently.

func NewAppsTransportFromPrivateKey added in v1.2.0

func NewAppsTransportFromPrivateKey(tr http.RoundTripper, appID int64, key *rsa.PrivateKey) *AppsTransport

NewAppsTransportFromPrivateKey returns an AppsTransport using a crypto/rsa.(*PrivateKey).

func NewAppsTransportKeyFromFile added in v0.1.2

func NewAppsTransportKeyFromFile(tr http.RoundTripper, appID int64, privateKeyFile string) (*AppsTransport, error)

NewAppsTransportKeyFromFile returns a AppsTransport using a private key from file.

func (*AppsTransport) RoundTrip added in v0.1.2

func (t *AppsTransport) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip implements http.RoundTripper interface.

type Client

type Client interface {
	Do(*http.Request) (*http.Response, error)
}

Client is a HTTP client which sends a http.Request and returns a http.Response or an error.

type Transport

type Transport struct {
	BaseURL string // BaseURL is the scheme and host for GitHub API, defaults to https://api.github.com
	Client  Client // Client to use to refresh tokens, defaults to http.Client with provided transport

	InstallationTokenOptions *github.InstallationTokenOptions // parameters restrict a token's access
	// contains filtered or unexported fields
}

Transport provides a http.RoundTripper by wrapping an existing http.RoundTripper and provides GitHub Apps authentication as an installation.

Client can also be overwritten, and is useful to change to one which provides retry logic if you do experience retryable errors.

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

func New

func New(tr http.RoundTripper, appID, installationID int64, privateKey []byte) (*Transport, error)

New returns an Transport using private key. The key is parsed and if any errors occur the error is non-nil.

The provided tr http.RoundTripper should be shared between multiple installations to ensure reuse of underlying TCP connections.

The returned Transport's RoundTrip method is safe to be used concurrently.

func NewFromAppsTransport added in v1.2.0

func NewFromAppsTransport(atr *AppsTransport, installationID int64) *Transport

NewFromAppsTransport returns a Transport using an existing *AppsTransport.

func NewKeyFromFile

func NewKeyFromFile(tr http.RoundTripper, appID, installationID int64, privateKeyFile string) (*Transport, error)

NewKeyFromFile returns a Transport using a private key from file.

func (*Transport) Permissions added in v0.1.3

func (t *Transport) Permissions() (github.InstallationPermissions, error)

Permissions returns a transport token's GitHub installation permissions.

func (*Transport) Repositories added in v0.1.3

func (t *Transport) Repositories() ([]github.Repository, error)

Repositories returns a transport token's GitHub repositories.

func (*Transport) RoundTrip

func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip implements http.RoundTripper interface.

func (*Transport) Token

func (t *Transport) Token(ctx context.Context) (string, error)

Token checks the active token expiration and renews if necessary. Token returns a valid access token. If renewal fails an error is returned.

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