facebook

Documentation

Overview

Package facebook implements the OAuth2 protocol for authenticating users through Facebook. This package can be used as a reference implementation of an OAuth2 provider for goth.

Index

• type Provider
  • func New(clientKey, secret, callbackURL string, scopes ...string) *Provider
  • func (p *Provider) BeginAuth(state string) (goth.Session, error)
  • func (p *Provider) Client() *http.Client
  • func (p *Provider) Debug(debug bool)
  • func (p *Provider) FetchUser(session goth.Session) (goth.User, error)
  • func (p *Provider) Name() string
  • func (p *Provider) RefreshToken(refreshToken string) (*oauth2.Token, error)
  • func (p *Provider) RefreshTokenAvailable() bool
  • func (p *Provider) SetCustomFields(fields []string) *Provider
  • func (p *Provider) SetName(name string)
  • func (p *Provider) UnmarshalSession(data string) (goth.Session, error)
• type Session
  • func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, error)
  • func (s Session) GetAuthURL() (string, error)
  • func (s Session) Marshal() string
  • func (s Session) String() string

Types

type Provider

type Provider struct {
	ClientKey   string
	Secret      string
	CallbackURL string
	HTTPClient  *http.Client
	Fields      string
	// contains filtered or unexported fields
}

Provider is the implementation of `goth.Provider` for accessing Facebook.

func New

func New(clientKey, secret, callbackURL string, scopes ...string) *Provider

New creates a new Facebook provider, and sets up important connection details. You should always call `facebook.New` to get a new Provider. Never try to create one manually.

func (*Provider) BeginAuth

func (p *Provider) BeginAuth(state string) (goth.Session, error)

BeginAuth asks Facebook for an authentication end-point.

func (*Provider) Client

func (p *Provider) Client() *http.Client

func (*Provider) Debug

func (p *Provider) Debug(debug bool)

Debug is a no-op for the facebook package.

func (*Provider) FetchUser

func (p *Provider) FetchUser(session goth.Session) (goth.User, error)

FetchUser will go to Facebook and access basic information about the user.

func (*Provider) Name

func (p *Provider) Name() string

Name is the name used to retrieve this provider later.

func (*Provider) RefreshToken

func (p *Provider) RefreshToken(refreshToken string) (*oauth2.Token, error)

RefreshToken refresh token is not provided by facebook

func (*Provider) RefreshTokenAvailable

func (p *Provider) RefreshTokenAvailable() bool

RefreshTokenAvailable refresh token is not provided by facebook

func (*Provider) SetCustomFields

func (p *Provider) SetCustomFields(fields []string) *Provider

SetCustomFields sets the fields used to return information for a user.

A list of available field values can be found at https://developers.facebook.com/docs/graph-api/reference/user

func (*Provider) SetName

func (p *Provider) SetName(name string)

SetName is to update the name of the provider (needed in case of multiple providers of 1 type)

func (*Provider) UnmarshalSession

func (p *Provider) UnmarshalSession(data string) (goth.Session, error)

UnmarshalSession will unmarshal a JSON string into a session.

type Session

type Session struct {
	AuthURL     string
	AccessToken string
	ExpiresAt   time.Time
}

Session stores data during the auth process with Facebook.

func (*Session) Authorize

func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string, error)

Authorize the session with Facebook and return the access token to be stored for future use.

func (Session) GetAuthURL

func (s Session) GetAuthURL() (string, error)

GetAuthURL will return the URL set by calling the `BeginAuth` function on the Facebook provider.

func (Session) Marshal

func (s Session) Marshal() string

Marshal the session into a string

func (Session) String

func (s Session) String() string