Intégration d'un point d'entrée GraphQL et d'un connecteur pour

PostgreSQL

- Possibilité de migrer le schéma de la base de données via drapeau
- Génération du code GraphQL avec https://gqlgen.com/

.env.dist

@@ -1,3 +1,7 @@
+DEBUG=true
 OIDC_CLIENT_ID=daddy
 OIDC_CLIENT_SECRET=daddycool
 OIDC_POST_LOGOUT_REDIRECT_URL=http://localhost:8081/logout/redirect
+HTTP_COOKIE_AUTHENTICATION_KEY=cL87ucJJSGt7XSjRuQe7GDb2qna8ijfQ
+HTTP_COOKIE_ENCRYPTION_KEY=cL87ucJJSGt7XSjRuQe7GDb2qna8ijfQ
+DATABASE_DSN="host=localhost user=daddy database=daddy password=daddy"

Makefile

@@ -1,10 +1,15 @@
+SHELL := /bin/bash
+
 build: build-docker build-server
 
 build-docker:
 	docker-compose build
 
+generate:
+	cd internal && go run github.com/99designs/gqlgen generate
+
 build-server:
-	CGO_ENABLED=0 go build -mod=vendor -v -o ./bin/server ./cmd/server
+	CGO_ENABLED=0 go build -v -o ./bin/server ./cmd/server
 
 deps:
 	cd client && npm install
@@ -22,6 +27,18 @@ down:
 db-shell:
 	docker-compose exec postgres psql -Udaddy
 
+migrate: build-server
+	( set -o allexport && source .env && set +o allexport && bin/server -workdir "./cmd/server" -config ../../data/config.yml -migrate $(MIGRATE) )
+
+migrate-latest:
+	$(MAKE) MIGRATE=latest migrate
+
+migrate-up:
+	$(MAKE) MIGRATE=up migrate
+
+migrate-down:
+	$(MAKE) MIGRATE=down migrate
+
 test:
 	go test -v ./...
 

README.md

@@ -28,8 +28,8 @@ Les services suivants devraient être disponibles après démarrage de l'environ
 |Service|Type|Accès|Description|
 |-------|----|-----|-----------|
 |Application React|HTTP (UI)|http://localhost:8080/|Page d'accueil de l'application React (serveur Webpack)|
-|Interface Web GraphQL|HTTP (UI)|http://localhost:8081/|Interface Web de développement de l'API GraphQL|
+|Interface Web GraphQL|HTTP (UI)|http://localhost:8081/api/v1/graphql (GET)|Interface Web de développement de l'API GraphQL (mode debug uniquement, nécessite d'être authentifié)|
-|Serveur GraphQL|HTTP (GraphQL)|http://localhost:8081/api/v1/graphql|Point d'entrée de l'API GraphQL|
+|Serveur GraphQL|HTTP (GraphQL)|http://localhost:8081/api/v1/graphql (POST)|Point d'entrée de l'API GraphQL|
 |Serveur Hydra|HTTP (ReST)|http://localhost:4444|Point d'entrée pour l'API OAuth2 d'[Hydra](https://www.ory.sh/hydra/docs/)|
 |Serveur Hydra Passwordless|HTTP|http://localhost:3000|Point d'entrée pour la ["Login/Consent App"](https://www.ory.sh/hydra/docs/implementing-consent) [hydra-passwordless](https://forge.cadoles.com/wpetit/hydra-passwordless)|
 |Serveur FakeSMTP|HTTP|http://localhost:8082|Interface web du serveur [FakeSMTP](https://forge.cadoles.com/wpetit/fake-smtp)

cmd/server/container.go

@@ -4,8 +4,12 @@ import (
 	"context"
 	"net/http"
 
+	"forge.cadoles.com/Cadoles/daddy/internal/migration"
+	"gitlab.com/wpetit/goweb/cqrs"
+
+	"forge.cadoles.com/Cadoles/daddy/internal/database"
+
 	"gitlab.com/wpetit/goweb/logger"
-	"gitlab.com/wpetit/goweb/template/html"
 
 	"forge.cadoles.com/Cadoles/daddy/internal/config"
 	oidc "forge.cadoles.com/wpetit/goweb-oidc"
@@ -14,7 +18,6 @@ import (
 	"gitlab.com/wpetit/goweb/service"
 	"gitlab.com/wpetit/goweb/service/build"
 	"gitlab.com/wpetit/goweb/service/session"
-	"gitlab.com/wpetit/goweb/service/template"
 	"gitlab.com/wpetit/goweb/session/gorilla"
 )
 
@@ -67,11 +70,6 @@ func getServiceContainer(ctx context.Context, conf *config.Config) (*service.Con
 		gorilla.ServiceProvider("daddy", cookieStore),
 	)
 
-	// Create and expose template service provider
-	ctn.Provide(template.ServiceName, html.ServiceProvider(
-		conf.HTTP.TemplateDir,
-	))
-
 	// Create and expose config service provider
 	ctn.Provide(config.ServiceName, config.ServiceProvider(conf))
 
@@ -86,5 +84,21 @@ func getServiceContainer(ctx context.Context, conf *config.Config) (*service.Con
 		oidc.WithScopes("email", "openid"),
 	))
 
+	ctn.Provide(database.ServiceName, database.ServiceProvider(conf.Database.DSN))
+
+	dbpool, err := database.From(ctn)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not retrieve database service")
+	}
+
+	versionResolver := database.NewVersionResolver(dbpool)
+	if err := versionResolver.Init(ctx); err != nil {
+		return nil, errors.Wrap(err, "could not initialize database version resolver")
+	}
+
+	ctn.Provide(migration.ServiceName, migration.ServiceProvider(versionResolver))
+
+	ctn.Provide(cqrs.ServiceName, cqrs.ServiceProvider())
+
 	return ctn, nil
 }

cmd/server/cqrs.go

@@ -0,0 +1,11 @@
+package main
+
+import "gitlab.com/wpetit/goweb/service"
+
+func initCommands(ctn *service.Container) error {
+	return nil
+}
+
+func initQueries(ctn *service.Container) error {
+	return nil
+}

cmd/server/main.go

@@ -27,6 +27,7 @@ var (
 	workdir    = ""
 	dumpConfig = false
 	version    = false
+	migrate    = ""
 )
 
 // nolint: gochecknoglobals
@@ -42,6 +43,7 @@ func init() {
 	flag.StringVar(&workdir, "workdir", workdir, "working directory")
 	flag.BoolVar(&dumpConfig, "dump-config", dumpConfig, "dump configuration and exit")
 	flag.BoolVar(&version, "version", version, "show version and exit")
+	flag.StringVar(&migrate, "migrate", migrate, "migrate data schema version and exit, possible values: latest, down, up")
 }
 
 func main() {
@@ -137,6 +139,37 @@ func main() {
 		)
 	}
 
+	ctx = container.WithContainer(ctx, ctn)
+
+	if migrate != "" {
+		if err := applyMigration(ctx, ctn); err != nil {
+			logger.Fatal(
+				ctx,
+				"could not apply migration",
+				logger.E(err),
+			)
+		}
+
+		os.Exit(0)
+	}
+
+	// Init commands and queries
+	if err := initCommands(ctn); err != nil {
+		logger.Fatal(
+			ctx,
+			"could not init commands",
+			logger.E(err),
+		)
+	}
+
+	if err := initQueries(ctn); err != nil {
+		logger.Fatal(
+			ctx,
+			"could not init queries",
+			logger.E(err),
+		)
+	}
+
 	r := chi.NewRouter()
 
 	// Define base middlewares

cmd/server/migration.go

@@ -0,0 +1,100 @@
+package main
+
+import (
+	"context"
+
+	"forge.cadoles.com/Cadoles/daddy/internal/database"
+	"forge.cadoles.com/Cadoles/daddy/internal/migration"
+	"github.com/jackc/pgx/v4"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/logger"
+	"gitlab.com/wpetit/goweb/service"
+)
+
+const (
+	migrateUp     = "up"
+	migrateLatest = "latest"
+	migrateDown   = "down"
+)
+
+func applyMigration(ctx context.Context, ctn *service.Container) error {
+	migr, err := migration.From(ctn)
+	if err != nil {
+		return err
+	}
+
+	// Register available migrations
+	migr.Register(
+		m000initialSchema(),
+	)
+
+	currentVersion, err := migr.CurrentVersion(ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve current data schema version")
+	}
+
+	switch migrate {
+	case migrateUp:
+		if err := migr.Up(ctx); err != nil {
+			return errors.Wrap(err, "could not apply up migration")
+		}
+
+	case migrateLatest:
+		latestVersion, err := migr.LatestVersion()
+		if err != nil {
+			return errors.Wrap(err, "could not retrieve latest data schema version")
+		}
+
+		logger.Info(
+			ctx,
+			"migrating data schema to latest version",
+			logger.F("currentVersion", currentVersion),
+			logger.F("latestVersion", latestVersion),
+		)
+
+		// Execute migration to latest available version
+		if err := migr.Latest(ctx); err != nil {
+			return errors.Wrap(err, "could not migrate to latest data schema")
+		}
+
+	case migrateDown:
+		if err := migr.Down(ctx); err != nil {
+			return errors.Wrap(err, "could not apply down migration")
+		}
+
+	default:
+		return errors.Errorf("unknown migration command: '%s'", migrate)
+	}
+
+	logger.Info(
+		ctx,
+		"migration completed",
+	)
+
+	return nil
+}
+
+func m000initialSchema() migration.Migration {
+	return database.NewMigration(
+		"00_initial_schema",
+		func(ctx context.Context, tx pgx.Tx) error {
+			_, err := tx.Exec(ctx, `
+			CREATE TABLE users (
+				id SERIAL PRIMARY KEY,
+				name TEXT,
+				email TEXT NOT NULL,
+				CONSTRAINT unique_email unique(email)
+			);
+			`)
+
+			return err
+		},
+		func(ctx context.Context, tx pgx.Tx) error {
+			_, err := tx.Exec(ctx, `
+			DROP TABLE users;
+			`)
+
+			return err
+		},
+	)
+}

go.mod

@@ -4,10 +4,14 @@ go 1.14
 
 require (
 	forge.cadoles.com/wpetit/goweb-oidc v0.0.0-20200619080035-4bbf7b016032
+	github.com/99designs/gqlgen v0.11.3
 	github.com/caarlos0/env/v6 v6.2.2
 	github.com/go-chi/chi v4.1.0+incompatible
 	github.com/gorilla/sessions v1.2.0
+	github.com/jackc/pgx v3.6.2+incompatible
+	github.com/jackc/pgx/v4 v4.7.1
 	github.com/pkg/errors v0.9.1
-	gitlab.com/wpetit/goweb v0.0.0-20200418152305-76dea96a46ce
+	github.com/vektah/gqlparser/v2 v2.0.1
+	gitlab.com/wpetit/goweb v0.0.0-20200707070104-985ce3eba3c2
 	gopkg.in/yaml.v2 v2.2.8
 )

go.sum

@@ -16,10 +16,15 @@ cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiy
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 forge.cadoles.com/wpetit/goweb-oidc v0.0.0-20200619080035-4bbf7b016032 h1:qTYaLPsLDlvqDkatONsvrisvfvpHaGe3lQqIaX7FFQQ=
 forge.cadoles.com/wpetit/goweb-oidc v0.0.0-20200619080035-4bbf7b016032/go.mod h1:gkfqGyk7fCj2Z0ngEOCJ3K0FVmqft/8dFV/OnYT1vec=
+github.com/99designs/gqlgen v0.11.3 h1:oFSxl1DFS9X///uHV3y6CEfpcXWrDUxVblR4Xib2bs4=
+github.com/99designs/gqlgen v0.11.3/go.mod h1:RgX5GRRdDWNkh4pBrdzNpNPFVsdoUFY2+adM6nb1N+4=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0=
 github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtixis4Tib9if0=
+github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
+github.com/agnivade/levenshtein v1.0.3 h1:M5ZnqLOoZR8ygVq0FfkXsNOKzMCk0xRiow0R5+5VkQ0=
+github.com/agnivade/levenshtein v1.0.3/go.mod h1:4SFRZbbXWLF4MU1T9Qg0pGgH3Pjs+t6ie5efyrwRJXs=
 github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
 github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38 h1:smF2tmSOzy2Mm+0dGI2AIUHY+w0BUc+4tn40djz7+6U=
 github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38/go.mod h1:r7bzyVFMNntcxPZXK3/+KdruV1H5KSlyVY0gc+NgInI=
@@ -32,12 +37,20 @@ github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUS
 github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MRgZdU3vrFd05IQ89AxUZ0aYdF39BYoNFa324SodPCA=
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
 github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
+github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
+github.com/arbovm/levenshtein v0.0.0-20160628152529-48b4e1c0c4d0/go.mod h1:t2tdKJDJF9BV14lnkjHmOQgcvEKgtqs5a1N3LNdJhGE=
 github.com/caarlos0/env/v6 v6.2.2 h1:R0NIFXaB/LhwuGrjnsldzpnVNjFU/U+hTVHt+cq0yDY=
 github.com/caarlos0/env/v6 v6.2.2/go.mod h1:3LpmfcAYCG6gCiSgDLaFR5Km1FRpPwFvBbRcjHar6Sw=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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+github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
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+github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
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 github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 h1:y5HC9v93H5EPKqaS1UYVg1uYah5Xf51mBfIoWehClUQ=
 github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964/go.mod h1:Xd9hchkHSWYkEqJwUGisez3G1QY8Ryz0sdWrLPMGjLk=
@@ -46,6 +59,7 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dchest/uniuri v0.0.0-20200228104902-7aecb25e1fe5 h1:RAV05c0xOkJ3dZGS0JFybxFKZ2WMLabgx3uXnd7rpGs=
 github.com/dchest/uniuri v0.0.0-20200228104902-7aecb25e1fe5/go.mod h1:GgB8SF9nRG+GqaDtLcwJZsQFhcogVCJ79j4EdT0c2V4=
+github.com/dgryski/trifles v0.0.0-20190318185328-a8d75aae118c/go.mod h1:if7Fbed8SFyPtHLHbg49SI7NAdJiC5WIA09pe59rfAA=
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@@ -53,12 +67,16 @@ github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymF
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
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 github.com/go-chi/chi v4.0.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
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+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
+github.com/gogo/protobuf v1.0.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
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@@ -81,37 +99,118 @@ github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXi
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
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 golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191115202509-3a792d9c32b2/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200114235610-7ae403b6b589 h1:rjUrONFu4kLchcZTfp3/96bR8bW8dIa8uz3cR5n0cgM=
+golang.org/x/tools v0.0.0-20200114235610-7ae403b6b589/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
@@ -252,12 +418,15 @@ google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQ
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
 gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
+gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/square/go-jose.v2 v2.5.1 h1:7odma5RETjNHWJnR32wx8t+Io4djHE1PqxCFx3iiZ2w=
 gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
@@ -266,3 +435,5 @@ honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+sourcegraph.com/sourcegraph/appdash v0.0.0-20180110180208-2cc67fd64755/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
+sourcegraph.com/sourcegraph/appdash-data v0.0.0-20151005221446-73f23eafcf67/go.mod h1:L5q+DGLGOQFpo1snNEkLOJT2d1YTW66rWNzatr3He1k=

internal/.gitignore

@@ -0,0 +1,2 @@
+/server.go
+/graph/generated

internal/config/config.go

@@ -13,9 +13,11 @@ import (
 )
 
 type Config struct {
+	Debug    bool           `yaml:"debug" env:"DEBUG"`
 	Log      LogConfig      `yaml:"log"`
 	HTTP     HTTPConfig     `yaml:"http"`
 	OIDC     OIDCConfig     `yaml:"oidc"`
+	Database DatabaseConfig `yaml:"database"`
 }
 
 // NewFromFile retrieves the configuration from the given file
@@ -57,6 +59,10 @@ type LogConfig struct {
 	Format logger.Format `yaml:"format" env:"LOG_FORMAT"`
 }
 
+type DatabaseConfig struct {
+	DSN string `yaml:"dsn" env:"DATABASE_DSN"`
+}
+
 func NewDumpDefault() *Config {
 	config := NewDefault()
 	return config
@@ -64,6 +70,7 @@ func NewDumpDefault() *Config {
 
 func NewDefault() *Config {
 	return &Config{
+		Debug: false,
 		Log: LogConfig{
 			Level:  logger.LevelInfo,
 			Format: logger.FormatHuman,
@@ -82,6 +89,9 @@ func NewDefault() *Config {
 			RedirectURL:           "http://localhost:8081/oauth2/callback",
 			PostLogoutRedirectURL: "http://localhost:8081",
 		},
+		Database: DatabaseConfig{
+			DSN: "host=localhost database=daddy",
+		},
 	}
 }
 

internal/database/migration.go

@@ -0,0 +1,79 @@
+package database
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v4"
+
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/middleware/container"
+)
+
+type MigrationFunc func(ctx context.Context, tx pgx.Tx) error
+
+type Migration struct {
+	version string
+	up      MigrationFunc
+	down    MigrationFunc
+}
+
+func (m *Migration) Version() string {
+	return m.version
+}
+
+func (m *Migration) Up(ctx context.Context) error {
+	pool, err := m.getDatabaseService(ctx)
+	if err != nil {
+		return err
+	}
+
+	err = WithTx(ctx, pool, func(ctx context.Context, tx pgx.Tx) error {
+		return m.up(ctx, tx)
+	})
+
+	if err != nil {
+		return errors.Wrap(err, "could not apply up migration")
+	}
+
+	return nil
+}
+
+func (m *Migration) Down(ctx context.Context) error {
+	pool, err := m.getDatabaseService(ctx)
+	if err != nil {
+		return err
+	}
+
+	err = WithTx(ctx, pool, func(ctx context.Context, tx pgx.Tx) error {
+		return m.down(ctx, tx)
+	})
+
+	if err != nil {
+		return errors.Wrap(err, "could not apply down migration")
+	}
+
+	return nil
+}
+
+func (m *Migration) getDatabaseService(ctx context.Context) (*pgxpool.Pool, error) {
+	ctn, err := container.From(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not retrieve service container")
+	}
+
+	pool, err := From(ctn)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not retrieve database service")
+	}
+
+	return pool, nil
+}
+
+func NewMigration(version string, up, down MigrationFunc) *Migration {
+	return &Migration{
+		version: version,
+		up:      up,
+		down:    down,
+	}
+}

internal/database/provider.go

@@ -0,0 +1,24 @@
+package database
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/service"
+)
+
+func ServiceProvider(dsn string) service.Provider {
+	pool, err := pgxpool.Connect(context.Background(), dsn)
+	if err != nil {
+		err = errors.Wrap(err, "could not connect to database")
+	}
+
+	return func(ctn *service.Container) (interface{}, error) {
+		if err != nil {
+			return nil, err
+		}
+
+		return pool, nil
+	}
+}

internal/database/service.go

@@ -0,0 +1,34 @@
+package database
+
+import (
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/service"
+)
+
+const ServiceName service.Name = "database"
+
+// From retrieves the database pool service in the given container
+func From(container *service.Container) (*pgxpool.Pool, error) {
+	service, err := container.Service(ServiceName)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
+	}
+
+	srv, ok := service.(*pgxpool.Pool)
+	if !ok {
+		return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
+	}
+
+	return srv, nil
+}
+
+// Must retrieves the database pool service in the given container or panic otherwise
+func Must(container *service.Container) *pgxpool.Pool {
+	srv, err := From(container)
+	if err != nil {
+		panic(err)
+	}
+
+	return srv
+}

internal/database/tx.go

@@ -0,0 +1,38 @@
+package database
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v4"
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/pkg/errors"
+)
+
+func WithTx(ctx context.Context, pool *pgxpool.Pool, fn func(context.Context, pgx.Tx) error) error {
+	tx, err := pool.BeginTx(ctx, pgx.TxOptions{})
+	if err != nil {
+		return errors.Wrap(err, "could not begin transaction")
+	}
+
+	defer func() {
+		if err := tx.Rollback(ctx); err != nil && !errors.Is(err, pgx.ErrTxClosed) {
+			panic(errors.Wrap(err, "could not rollback transaction"))
+		}
+	}()
+
+	if err := fn(ctx, tx); err != nil {
+		err := errors.Wrap(err, "could not apply down migration")
+
+		if rollbackErr := tx.Rollback(ctx); rollbackErr != nil {
+			return errors.Wrap(err, rollbackErr.Error())
+		}
+
+		return err
+	}
+
+	if err := tx.Commit(ctx); err != nil {
+		return errors.Wrap(err, "could not commit transaction")
+	}
+
+	return nil
+}

internal/database/version_resolver.go

@@ -0,0 +1,94 @@
+package database
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v4"
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/pkg/errors"
+)
+
+type VersionResolver struct {
+	pool *pgxpool.Pool
+}
+
+func (r *VersionResolver) Current(ctx context.Context) (string, error) {
+	var version string
+
+	err := WithTx(ctx, r.pool, func(ctx context.Context, tx pgx.Tx) error {
+		err := tx.QueryRow(ctx, `SELECT version FROM database_schema WHERE is_current = true;`).
+			Scan(&version)
+
+		if errors.Is(err, pgx.ErrNoRows) {
+			return nil
+		}
+
+		return err
+	})
+
+	if err != nil {
+		return "", errors.Wrap(err, "could execute version resolver init transaction")
+	}
+
+	return version, nil
+}
+
+func (r *VersionResolver) Set(ctx context.Context, version string) error {
+	err := WithTx(ctx, r.pool, func(ctx context.Context, tx pgx.Tx) error {
+		if version != "" {
+			_, err := tx.Exec(ctx, `
+				INSERT INTO database_schema (version, is_current, migrated_at)
+				VALUES
+					(
+						$1,
+						true,
+						now()
+					) 
+				ON CONFLICT ON CONSTRAINT unique_version 
+				DO UPDATE SET migrated_at = now(), is_current = true;
+			`, version)
+
+			if err != nil {
+				return err
+			}
+		}
+
+		_, err := tx.Exec(ctx, `
+			UPDATE database_schema SET is_current = false, migrated_at = null WHERE version <> $1;
+		`, version)
+
+		return err
+	})
+
+	if err != nil {
+		return errors.Wrap(err, "could not update schema version")
+	}
+
+	return nil
+}
+
+func (r *VersionResolver) Init(ctx context.Context) error {
+	err := WithTx(ctx, r.pool, func(ctx context.Context, tx pgx.Tx) error {
+		_, err := tx.Exec(ctx, `
+		CREATE TABLE IF NOT EXISTS database_schema(
+			version TEXT NOT NULL,
+			migrated_at TIME,
+			is_current BOOLEAN,
+			CONSTRAINT unique_version UNIQUE(version)
+		);`)
+
+		return err
+	})
+
+	if err != nil {
+		return errors.Wrap(err, "could execute version resolver init transaction")
+	}
+
+	return nil
+}
+
+func NewVersionResolver(pool *pgxpool.Pool) *VersionResolver {
+	return &VersionResolver{
+		pool: pool,
+	}
+}

internal/gqlgen.yml

@@ -0,0 +1,56 @@
+# Where are all the schema files located? globs are supported eg  src/**/*.graphqls
+schema:
+  - graph/*.graphqls
+
+# Where should the generated server code go?
+exec:
+  filename: graph/generated/generated.go
+  package: generated
+
+# Uncomment to enable federation
+# federation:
+#   filename: graph/generated/federation.go
+#   package: generated
+
+# Where should any generated models go?
+model:
+  filename: graph/model/models_gen.go
+  package: model
+
+# Where should the resolver implementations go?
+resolver:
+  layout: follow-schema
+  dir: graph
+  package: graph
+
+# Optional: turn on use `gqlgen:"fieldName"` tags in your models
+# struct_tag: json
+
+# Optional: turn on to use []Thing instead of []*Thing
+# omit_slice_element_pointers: false
+
+# Optional: set to speed up generation time by not performing a final validation pass.
+# skip_validation: true
+
+# gqlgen will search for any type names in the schema in these go packages
+# if they match it will use them, otherwise it will generate them.
+autobind:
+  - "forge.cadoles.com/Cadoles/daddy/internal/graph/model"
+
+# This section declares type mapping between the GraphQL and go type systems
+#
+# The first line in each type will be used as defaults for resolver arguments and
+# modelgen, the others will be allowed when binding to fields. Configure them to
+# your liking
+models:
+  ID:
+    model:
+      - github.com/99designs/gqlgen/graphql.ID
+      - github.com/99designs/gqlgen/graphql.Int
+      - github.com/99designs/gqlgen/graphql.Int64
+      - github.com/99designs/gqlgen/graphql.Int32
+  Int:
+    model:
+      - github.com/99designs/gqlgen/graphql.Int
+      - github.com/99designs/gqlgen/graphql.Int64
+      - github.com/99designs/gqlgen/graphql.Int32

internal/graph/model/models_gen.go

@@ -0,0 +1,8 @@
+// Code generated by github.com/99designs/gqlgen, DO NOT EDIT.
+
+package model
+
+type User struct {
+	Name  *string `json:"name"`
+	Email string  `json:"email"`
+}

internal/graph/resolver.go

@@ -0,0 +1,7 @@
+package graph
+
+// This file will not be regenerated automatically.
+//
+// It serves as dependency injection for your app, add any dependencies you require here.
+
+type Resolver struct{}

internal/graph/schema.graphqls

@@ -0,0 +1,12 @@
+# GraphQL schema example
+#
+# https://gqlgen.com/getting-started/
+
+type User {
+  name: String
+  email: String!
+}
+
+type Query {
+  userProfile: User
+}

internal/graph/schema.resolvers.go

@@ -0,0 +1,21 @@
+package graph
+
+// This file will be automatically regenerated based on the schema, any resolver implementations
+// will be copied through when generating and any unknown code will be moved to the end.
+
+import (
+	"context"
+	"fmt"
+
+	"forge.cadoles.com/Cadoles/daddy/internal/graph/generated"
+	"forge.cadoles.com/Cadoles/daddy/internal/graph/model"
+)
+
+func (r *queryResolver) UserProfile(ctx context.Context) (*model.User, error) {
+	panic(fmt.Errorf("not implemented"))
+}
+
+// Query returns generated.QueryResolver implementation.
+func (r *Resolver) Query() generated.QueryResolver { return &queryResolver{r} }
+
+type queryResolver struct{ *Resolver }

internal/migration/manager.go

@@ -0,0 +1,146 @@
+package migration
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+)
+
+var (
+	ErrNoAvailableMigration = errors.New("no available migration")
+	ErrMigrationNotFound    = errors.New("migration not found")
+)
+
+type Manager struct {
+	migrations []Migration
+	resolver   VersionResolver
+}
+
+func (m *Manager) Up(ctx context.Context) error {
+	currentVersion, err := m.resolver.Current(ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve current version")
+	}
+
+	migrate := func(up Migration) error {
+		if err := up.Up(ctx); err != nil {
+			return errors.Wrapf(err, "could not apply '%s' up migration", up.Version())
+		}
+
+		if err := m.resolver.Set(ctx, up.Version()); err != nil {
+			return errors.Wrapf(err, "could not update schema version to '%s'", up.Version())
+		}
+
+		return nil
+	}
+
+	if currentVersion == "" {
+		up := m.migrations[0]
+
+		return migrate(up)
+	}
+
+	for i, mi := range m.migrations {
+		if mi.Version() != currentVersion && currentVersion != "" {
+			continue
+		}
+
+		// Already at latest, do nothing
+		if i >= len(m.migrations)-1 {
+			return nil
+		}
+
+		up := m.migrations[i+1]
+
+		return migrate(up)
+	}
+
+	return errors.WithStack(ErrMigrationNotFound)
+}
+
+func (m *Manager) Down(ctx context.Context) error {
+	currentVersion, err := m.resolver.Current(ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve current version")
+	}
+
+	for i, mi := range m.migrations {
+		if mi.Version() != currentVersion {
+			continue
+		}
+
+		if err := mi.Down(ctx); err != nil {
+			return errors.Wrapf(err, "could not apply '%s' down migration", mi.Version())
+		}
+
+		var version string
+
+		// Already at oldest, do nothing
+		if i != 0 {
+			down := m.migrations[i-1]
+			version = down.Version()
+		}
+
+		if err := m.resolver.Set(ctx, version); err != nil {
+			return errors.Wrapf(err, "could not update schema version to '%s'", version)
+		}
+
+		return nil
+	}
+
+	return errors.WithStack(ErrMigrationNotFound)
+}
+
+func (m *Manager) Latest(ctx context.Context) error {
+	for {
+		isLatest, err := m.IsLatest(ctx)
+		if err != nil {
+			return errors.Wrap(err, "could not retrieve schema state")
+		}
+
+		if isLatest {
+			return nil
+		}
+
+		if err := m.Up(ctx); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+}
+
+func (m *Manager) Register(migrations ...Migration) {
+	m.migrations = migrations
+}
+
+func (m *Manager) CurrentVersion(ctx context.Context) (string, error) {
+	return m.resolver.Current(ctx)
+}
+
+func (m *Manager) LatestVersion() (string, error) {
+	if len(m.migrations) == 0 {
+		return "", errors.WithStack(ErrNoAvailableMigration)
+	}
+
+	return m.migrations[len(m.migrations)-1].Version(), nil
+}
+
+func (m *Manager) IsLatest(ctx context.Context) (bool, error) {
+	currentVersion, err := m.resolver.Current(ctx)
+	if err != nil {
+		return false, errors.Wrap(err, "could not retrieve current version")
+	}
+
+	latestVersion, err := m.LatestVersion()
+	if err != nil {
+		return false, errors.Wrap(err, "could not retrieve latest version")
+	}
+
+	return currentVersion == latestVersion, nil
+}
+
+func NewManager(resolver VersionResolver) *Manager {
+	return &Manager{
+		resolver:   resolver,
+		migrations: make([]Migration, 0),
+	}
+}

internal/migration/migration.go

@@ -0,0 +1,9 @@
+package migration
+
+import "context"
+
+type Migration interface {
+	Version() string
+	Up(context.Context) error
+	Down(context.Context) error
+}

internal/migration/provider.go

@@ -0,0 +1,13 @@
+package migration
+
+import (
+	"gitlab.com/wpetit/goweb/service"
+)
+
+func ServiceProvider(resolver VersionResolver) service.Provider {
+	manager := NewManager(resolver)
+
+	return func(ctn *service.Container) (interface{}, error) {
+		return manager, nil
+	}
+}

internal/migration/service.go

@@ -0,0 +1,33 @@
+package migration
+
+import (
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/service"
+)
+
+const ServiceName service.Name = "migration"
+
+// From retrieves the migration service in the given container.
+func From(container *service.Container) (*Manager, error) {
+	service, err := container.Service(ServiceName)
+	if err != nil {
+		return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
+	}
+
+	srv, ok := service.(*Manager)
+	if !ok {
+		return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
+	}
+
+	return srv, nil
+}
+
+// Must retrieves the migration service in the given container or panic otherwise.
+func Must(container *service.Container) *Manager {
+	srv, err := From(container)
+	if err != nil {
+		panic(err)
+	}
+
+	return srv
+}

internal/migration/version_resolver.go

@@ -0,0 +1,8 @@
+package migration
+
+import "context"
+
+type VersionResolver interface {
+	Current(context.Context) (string, error)
+	Set(context.Context, string) error
+}

internal/route/mount.go

@@ -2,7 +2,11 @@ package route
 
 import (
 	"forge.cadoles.com/Cadoles/daddy/internal/config"
+	"forge.cadoles.com/Cadoles/daddy/internal/graph"
+	"forge.cadoles.com/Cadoles/daddy/internal/graph/generated"
 	oidc "forge.cadoles.com/wpetit/goweb-oidc"
+	"github.com/99designs/gqlgen/graphql/handler"
+	"github.com/99designs/gqlgen/graphql/playground"
 
 	"github.com/go-chi/chi"
 	"gitlab.com/wpetit/goweb/static"
@@ -18,6 +22,17 @@ func Mount(r *chi.Mux, config *config.Config) error {
 	r.Route("/api", func(r chi.Router) {
 		r.Use(oidc.Middleware)
 
+		gql := handler.NewDefaultServer(
+			generated.NewExecutableSchema(generated.Config{
+				Resolvers: &graph.Resolver{},
+			}),
+		)
+
+		if config.Debug {
+			r.Get("/v1/graphql", playground.Handler("GraphQL playground", "/api/v1/graphql"))
+		}
+
+		r.Post("/v1/graphql", gql.ServeHTTP)
 	})
 
 	notFoundHandler := r.NotFoundHandler()

modd.conf

@@ -6,6 +6,7 @@ modd.conf {
   prep: make build-server
   prep: [ -e data/config.yml ] || ( mkdir -p data && bin/server -dump-config > data/config.yml )
   prep: [ -e .env ] || ( cp .env.dist .env )
+  prep:  make migrate-latest
   daemon: ( set -o allexport && source .env && set +o allexport && bin/server -workdir "./cmd/server" -config ../../data/config.yml )
 }
 
@@ -16,3 +17,8 @@ modd.conf {
 {
   daemon: cd client && NODE_ENV=development npm run server -- --display=minimal
 }
+
+internal/graph/schema.graphqls
+internal/gqlgen.yml {
+  prep: make generate
+}