get all contest api

Author: krishkumar84

cmd/portal-api/main.go

@@ -73,6 +73,7 @@ router.Handle("GET /api/admin/test",
 	router.HandleFunc("POST /api/contest",contest.CreateContest(storage))
 	router.HandleFunc("POST /api/question",question.CreateQuestion(storage))
 	router.HandleFunc("POST /api/testcase",testcase.CreateTestCase(storage))
+	router.HandleFunc("GET /api/contest",contest.GetAllContests(storage))
     // router.HandleFunc("GET /api/users/{id}",users.GetById(storage))
 	// router.HandleFunc("GET /api/users",users.GetAll(storage))
 

pkg/http/handler/contest/contest.go

@@ -1,8 +1,9 @@
 package contest
 
 import (
-	"net/http"
 	"encoding/json"
+	"net/http"
+
 	"github.com/krishkumar84/bdcoe-golang-portal/pkg/storage"
 	"github.com/krishkumar84/bdcoe-golang-portal/pkg/types"
 	"github.com/krishkumar84/bdcoe-golang-portal/pkg/utils/response"
@@ -24,4 +25,16 @@ func CreateContest(storage storage.Storage) http.HandlerFunc {
 
 		response.WriteJson(w, http.StatusCreated, map[string]string{"contest_id": contestId})
 	}
+}
+
+func GetAllContests(storage storage.Storage) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		contests, err := storage.GetAllContests()
+		if err != nil {
+			response.WriteJson(w, http.StatusInternalServerError, response.GeneralError(err))
+			return
+		}
+		
+		response.WriteJson(w, http.StatusOK, contests)
+	}
 }

pkg/storage/mongodb/mongodb.go

@@ -5,13 +5,13 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/go-playground/validator/v10"
 	"github.com/krishkumar84/bdcoe-golang-portal/pkg/config"
 	"github.com/krishkumar84/bdcoe-golang-portal/pkg/types"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
-    "github.com/go-playground/validator/v10"
 )
 
 type MongoDB struct {
@@ -147,4 +147,31 @@ func (m *MongoDB) CreateTestCase(testCase types.TestCase) (string, error) {
     }
 
     return result.InsertedID.(primitive.ObjectID).Hex(), nil
+}
+
+func (m *MongoDB) GetAllContests() ([]types.ContestBasicInfo, error) {
+    collection := m.db.Collection("contests")
+    ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+    defer cancel()
+
+    projection := bson.D{
+        {Key: "_id", Value: 1},
+        {Key: "title", Value: 1},
+        {Key: "start_time", Value: 1},
+        {Key: "end_time", Value: 1},
+        {Key: "description", Value: 1},
+    }
+
+    var contests []types.ContestBasicInfo
+    cursor, err := collection.Find(ctx, bson.M{}, options.Find().SetProjection(projection))
+    if err != nil {
+        return nil, err
+    }
+    defer cursor.Close(ctx)
+
+    if err = cursor.All(ctx, &contests); err != nil {
+        return nil, err
+    }
+
+    return contests, nil
 }

pkg/storage/storage.go

@@ -11,4 +11,5 @@ type Storage interface {
 	CreateContest(contest types.Contest) (string, error)
 	CreateQuestion(question types.Question) (string, error)
 	CreateTestCase(testCase types.TestCase) (string, error)
+	GetAllContests() ([]types.ContestBasicInfo, error)
 }

pkg/types/types.go

@@ -0,0 +1,10 @@
+package types
+
+import "time"
+type ContestBasicInfo struct {
+    ID          string    `bson:"_id" json:"contest_id"`
+    Title       string    `bson:"title" json:"title"`
+    StartTime   time.Time `bson:"start_time" json:"start_time"`
+    EndTime     time.Time `bson:"end_time" json:"end_time"`
+    Description string    `bson:"description" json:"description"`
+}