Ingest sqlmesh

package auth

import (
	"context"
	"fmt"
	"golang.org/x/oauth2"
	"google.golang.org/grpc/credentials"
	"google.golang.org/grpc/credentials/oauth"
)

type TokenSource interface {
	oauth2.TokenSource
	credentials.PerRPCCredentials
}

func LongLivedTokenSource(longLivedToken string, apiEndpoint string) (TokenSource, error) {
	if apiEndpoint == "" {
		apiEndpoint = "developer.synq.io"
	}

	initialToken, err := obtainToken(apiEndpoint, longLivedToken)
	if err != nil {
		return nil, err
	}

	return oauth.TokenSource{TokenSource: oauth2.ReuseTokenSource(initialToken, &tokenSource{apiEndpoint: apiEndpoint, longLivedToken: longLivedToken})}, nil
}

type tokenSource struct {
	longLivedToken string
	apiEndpoint    string
}

func (t *tokenSource) Token() (*oauth2.Token, error) {
	return obtainToken(t.apiEndpoint, t.longLivedToken)
}

func obtainToken(apiEndpoint string, longLivedToken string) (*oauth2.Token, error) {
	tokenURL := fmt.Sprintf("https://%s/oauth2/token", apiEndpoint)
	conf := oauth2.Config{
		Endpoint: oauth2.Endpoint{
			TokenURL:  tokenURL,
			AuthStyle: oauth2.AuthStyleInParams,
		},
	}
	return conf.PasswordCredentialsToken(context.Background(), "synq", longLivedToken)
}

package main

import (
	ingestsqlmeshv1grpc "buf.build/gen/go/getsynq/api/grpc/go/synq/ingest/sqlmesh/v1/sqlmeshv1grpc"
	ingestsqlmeshv1 "buf.build/gen/go/getsynq/api/protocolbuffers/go/synq/ingest/sqlmesh/v1"
	"context"
	"crypto/tls"
	"fmt"
	"github.com/getsynq/api/examples/golang/ingest_sqlmesh/auth"
	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials"
)

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

	host := "developer.synq.io"
	port := "443"
	apiUrl := fmt.Sprintf("%s:%s", host, port)

	longLivedToken := "st-long-lived-token"

	oauthTokenSource, err := auth.LongLivedTokenSource(longLivedToken, host)
	if err != nil {
		panic(err)
	}
	creds := credentials.NewTLS(&tls.Config{InsecureSkipVerify: false})
	opts := []grpc.DialOption{
		grpc.WithTransportCredentials(creds),
		grpc.WithPerRPCCredentials(oauthTokenSource),
		grpc.WithAuthority(host),
	}

	conn, err := grpc.DialContext(ctx, apiUrl, opts...)
	if err != nil {
		panic(err)
	}
	defer conn.Close()

	dbtServiceClient := ingestsqlmeshv1grpc.NewSqlMeshServiceClient(conn)

	res, err := dbtServiceClient.IngestMetadata(ctx, &ingestsqlmeshv1.IngestMetadataRequest{})
	if err != nil {
		panic(err)
	}

	fmt.Println("API worked:")
	fmt.Println(res.String())
}