Exchange with third-party services

This page describes how to perform an exchange with third-party services through OAuth 2.0 flows.

Sample

The following sample shows how to perform a sign-in third-party services through OAuth 2.0 flows.

Replace [FLOW] with the desired sign-in flow, e.g. users/123/flows/myanimelist-net.

Replace [OAUTH2-CODE] with the code provided in the callback URL following a signin request.

Replace [OAUTH2-STATE] with the state provided in the callback URL following a signin request.

tip

Tip: do not forget to replace CLIENT-ID and CLIENT-SECRET with valid IAM Service Account client credentials.

Golang

package main

import (
	"context"
	"log"

	"golang.org/x/oauth2/clientcredentials"

	"google.golang.org/api/option"

	gapic "github.com/animeapis/api-go-client/credentials/v1alpha1"
	credentials "github.com/animeapis/go-genproto/credentials/v1alpha1"
)

var (
	Code  = "[OAUTH2-CODE]"
	State = "[OAUTH2-STATE]"

	Flow = "[FLOW]"

	ClientID     = "[CLIENT-ID]"
	ClientSecret = "[CLIENT-SECRET]"
)

var (
	TokenURL = "https://accounts.animeshon.com/o/oauth2/token"
	Endpoint = "credentials.animeapis.com:443"
)

func main() {
	ctx := context.Background()

	config := &clientcredentials.Config{
		ClientID:     ClientID,
		ClientSecret: ClientSecret,
		TokenURL:     TokenURL,
	}

	options := []option.ClientOption{
		option.WithEndpoint(Endpoint),
		option.WithTokenSource(config.TokenSource(ctx)),
	}

	client, err := gapic.NewOAuth2Client(ctx, options...)
	if err != nil {
		log.Fatalf("NewOAuth2Client: %s", err)
	}

	request := &credentials.ExchangeRequest{
		Name:  Flow,
		Code:  Code,
		State: State,
	}

	response, err := client.Exchange(ctx, request)
	if err != nil {
		log.Fatalf("Exchange: %s", err)
	}

	log.Printf("name                 : %s", response.Credentials.GetName())
	log.Printf("uid                  : %s", response.Credentials.GetUid())
	log.Printf("active               : %t", response.Credentials.GetActive().GetValue())
	log.Printf("authentication method: %s", response.Credentials.GetAuthenticationMethod().String())
	log.Printf("principal            : %s", response.Credentials.GetPrincipal())
}

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