[olivercodes] feat(gh-2): basic http api, repository mock and tests, …

…redis repository integrated with api

ThoughtWorks-DPS/lab-api-teams/#2

cmd/teams-api-server/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"github.com/gin-gonic/gin"
+	"twdps.io/lab-api-teams/pkg/handler"
+	"twdps.io/lab-api-teams/pkg/repository"
+	"twdps.io/lab-api-teams/pkg/service"
+)
+
+func main() {
+	router := gin.Default()
+
+	teamRepo := repository.NewRedisTeamRepository()
+	teamService := service.NewTeamService(teamRepo)
+	teamHandler := handler.NewTeamHandler(teamService)
+
+	router.GET("/teams", teamHandler.GetTeams)
+	router.POST("/teams", teamHandler.AddTeam)
+
+	router.Run(":8080")
+}

go.mod

@@ -1,3 +1,37 @@
 module twdps.io/lab-api-teams
 
 go 1.20
+
+require (
+	github.com/gin-gonic/gin v1.9.1
+	github.com/go-redis/redis/v8 v8.11.5
+)
+
+require (
+	github.com/bytedance/sonic v1.9.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.14.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	golang.org/x/arch v0.3.0 // indirect
+	golang.org/x/crypto v0.9.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,84 @@
+github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
+github.com/bytedance/sonic v1.9.1 h1:6iJ6NqdoxCDr6mbY8h18oSO+cShGSMRGCEo7F2h0x8s=
+github.com/bytedance/sonic v1.9.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U=
+github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
+github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
+github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams=
+github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
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pkg/domain/teams.go

@@ -37,10 +37,10 @@ type TeamIntegration struct {
 	IntegrationName string `json:"integrationName"`
 }
 
-type TeamsRepository interface {
+type TeamRepository interface {
 	GetTeams() ([]Team, error)
 	GetTeam(id string) (Team, error)
 	AddTeam(newTeam Team) error
-	UpdateTeam(team Team) error
-	RemoveTeam(id string) (Team, error)
+	// UpdateTeam(team Team) error
+	// RemoveTeam(id string) (Team, error)
 }

pkg/handler/handler.go

@@ -0,0 +1,43 @@
+package handler
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"twdps.io/lab-api-teams/pkg/domain"
+	"twdps.io/lab-api-teams/pkg/service"
+)
+
+type TeamHandler struct {
+	teamService service.TeamService
+}
+
+func NewTeamHandler(teamService service.TeamService) *TeamHandler {
+	return &TeamHandler{teamService: teamService}
+}
+
+func (handler *TeamHandler) GetTeams(c *gin.Context) {
+	teams, err := handler.teamService.GetTeams()
+	if err != nil {
+		log.Fatalf("Failed to call GetTeams %v", err)
+	}
+
+	c.IndentedJSON(http.StatusOK, teams)
+}
+
+func (handler *TeamHandler) AddTeam(c *gin.Context) {
+	var newTeam domain.Team
+
+	if err := c.BindJSON(&newTeam); err != nil {
+		log.Printf("error %+v", err)
+		return
+	}
+
+	err := handler.teamService.AddTeam(newTeam)
+	if err != nil {
+		c.IndentedJSON(http.StatusInternalServerError, err)
+	}
+
+	c.IndentedJSON(http.StatusCreated, newTeam)
+}

pkg/repository/mock/mock_repository.go

@@ -0,0 +1,30 @@
+package mock
+
+import (
+	"fmt"
+
+	"twdps.io/lab-api-teams/pkg/domain"
+)
+
+type MockRepository struct {
+	Teams []domain.Team
+}
+
+func (m *MockRepository) GetTeams() ([]domain.Team, error) {
+	return m.Teams, nil
+}
+
+func (m *MockRepository) AddTeam(newTeam domain.Team) error {
+	m.Teams = append(m.Teams, newTeam)
+	return nil
+}
+
+func (m *MockRepository) GetTeam(id string) (domain.Team, error) {
+	for _, team := range m.Teams {
+		if id == team.TeamID {
+			return team, nil
+		}
+	}
+
+	return domain.Team{}, fmt.Errorf("Team not found")
+}

pkg/repository/mock/teams_api_repository_test.go

@@ -0,0 +1,46 @@
+package mock
+
+import (
+	"testing"
+
+	"twdps.io/lab-api-teams/pkg/domain"
+	"twdps.io/lab-api-teams/pkg/service"
+)
+
+func TestGetTeams(t *testing.T) {
+	mockRepository := &MockRepository{
+		Teams: []domain.Team{
+			{TeamID: "team-sapphire", TeamType: "normal", TeamDescription: "Sapphire frontend team", TeamRAM: 32, TeamCPU: 12, TeamRamLimit: 64, TeamCpuLimit: 24},
+		},
+	}
+
+	teamService := service.NewTeamService(mockRepository)
+	teams, _ := teamService.GetTeams()
+	if len(teams) != 1 {
+		t.Errorf("expected %d teams got %d", 1, len(teams))
+	}
+}
+
+func TestAddTeam(t *testing.T) {
+	mockRepository := &MockRepository{
+		Teams: []domain.Team{
+			{TeamID: "team-sapphire", TeamType: "normal", TeamDescription: "Sapphire frontend team", TeamRAM: 32, TeamCPU: 12, TeamRamLimit: 64, TeamCpuLimit: 24},
+		},
+	}
+
+	teamService := service.NewTeamService(mockRepository)
+	var newTeam = domain.Team{
+		TeamID: "team-sapphire", TeamType: "normal", TeamDescription: "Sapphire frontend team", TeamRAM: 32, TeamCPU: 12, TeamRamLimit: 64, TeamCpuLimit: 24,
+	}
+
+	err := teamService.AddTeam(newTeam)
+	if err != nil {
+		t.Errorf("failed to add team")
+	}
+
+	teams, _ := teamService.GetTeams()
+	if len(teams) != 2 {
+		t.Errorf("expected %d teams got %d", 2, len(teams))
+	}
+
+}

pkg/repository/redis_teams_api_repository.go

@@ -0,0 +1,79 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+
+	"github.com/go-redis/redis/v8"
+	"twdps.io/lab-api-teams/pkg/domain"
+)
+
+type RedisTeamRepository struct {
+	client *redis.Client
+	ctx    context.Context
+}
+
+func NewRedisTeamRepository() *RedisTeamRepository {
+	rdb := redis.NewClient(&redis.Options{
+		Addr: "localhost:6379",
+		DB:   0,
+	})
+
+	return &RedisTeamRepository{
+		client: rdb,
+		ctx:    context.Background(),
+	}
+}
+
+func (store *RedisTeamRepository) GetTeam(id string) (domain.Team, error) {
+	teamJson, err := store.client.Get(store.ctx, fmt.Sprintf("team:%s", id)).Result()
+	if err != nil {
+		return domain.Team{}, err
+	}
+
+	var team domain.Team
+	if err := json.Unmarshal([]byte(teamJson), &team); err != nil {
+		return domain.Team{}, err
+	}
+
+	return team, nil
+}
+
+func (store *RedisTeamRepository) GetTeams() ([]domain.Team, error) {
+	teamKeys, err := store.client.Keys(store.ctx, "team:*").Result()
+	if err != nil {
+		return nil, err // TODO Redis Err handling
+	}
+
+	fmt.Printf("%+v", teamKeys)
+
+	var teams []domain.Team
+	for _, key := range teamKeys {
+		teamJson, err := store.client.Get(store.ctx, key).Result()
+		if err != nil {
+			return nil, err
+		}
+
+		var team domain.Team
+		if err := json.Unmarshal([]byte(teamJson), &team); err != nil {
+			return nil, err
+		}
+
+		teams = append(teams, team)
+
+	}
+
+	return teams, nil
+}
+
+func (store *RedisTeamRepository) AddTeam(newTeam domain.Team) error {
+	teamJson, err := json.Marshal(newTeam)
+	if err != nil {
+		log.Fatalf("failed to marshal")
+		return err // Transient error - TODO
+	}
+
+	return store.client.Set(store.ctx, fmt.Sprintf("team:%s", newTeam.TeamID), teamJson, 0).Err()
+}

pkg/service/service.go

@@ -0,0 +1,37 @@
+package service
+
+import (
+	"fmt"
+
+	domain "twdps.io/lab-api-teams/pkg/domain"
+)
+
+type TeamService interface {
+	GetTeams() ([]domain.Team, error)
+	AddTeam(team domain.Team) error
+}
+
+type teamServiceImpl struct {
+	repo domain.TeamRepository
+}
+
+func NewTeamService(repo domain.TeamRepository) TeamService {
+	return &teamServiceImpl{
+		repo: repo,
+	}
+}
+
+func (s *teamServiceImpl) GetTeams() ([]domain.Team, error) {
+	teams, err := s.repo.GetTeams()
+	if err != nil {
+		return nil, fmt.Errorf("failed to fetch teams: %v", err)
+	}
+	return teams, err
+}
+
+func (s *teamServiceImpl) AddTeam(newTeam domain.Team) error {
+	if err := s.repo.AddTeam(newTeam); err != nil {
+		return fmt.Errorf("could not add team: %v", err)
+	}
+	return nil
+}