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implement pagination for GetAllCompanies endpoint #46

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implement pagination for GetAllCompanies endpoint #46

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c341609
implement pagination for GetAllCompanies endpoint
saumyarr8 Feb 17, 2025
5ca278d
Added error handling for pagination
saumyarr8 Feb 17, 2025
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31 changes: 28 additions & 3 deletions controller/company.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,8 +8,33 @@ import (
"go.mongodb.org/mongo-driver/bson"
)

func GetAllCompanies(mongikClient *mongikModels.Mongik, noCache bool) ([]model.Company, error) {
companies, err := db.Aggregate[model.Company](mongikClient, constants.DB, constants.COLLECTION_COMPANY, []bson.M{}, noCache)
func GetAllCompanies(mongikClient *mongikModels.Mongik, noCache bool, currentPage int, companiesPerPage int) ([]model.Company, int, error) {

return companies, err
var pipeline []bson.M

pipeline = []bson.M{
{"$sort": bson.M{"createdAt": -1}},
}

if currentPage != 0 {
skip := (currentPage - 1) * companiesPerPage
limit := companiesPerPage

pipeline = []bson.M{
{"$sort": bson.M{"createdAt": -1}},
{"$skip": skip},
{"$limit": limit},
}
}

totalCompaniesArray, err := db.Aggregate[map[string]int](mongikClient, constants.DB, constants.COLLECTION_COMPANY, []bson.M{{"$count": "total"}}, noCache)
if err != nil {
return nil, 0, err
}

totalCompanies := totalCompaniesArray[0]["total"]

companies, err := db.Aggregate[model.Company](mongikClient, constants.DB, constants.COLLECTION_COMPANY, pipeline, noCache)

return companies, totalCompanies, err
}
10 changes: 8 additions & 2 deletions handler/company.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package handler

import (
"net/http"
"strconv"

"github.com/FrosTiK-SD/auth/constants"
"github.com/FrosTiK-SD/auth/controller"
Expand All @@ -11,8 +12,12 @@ import (

func (h *Handler) GetAllCompanies(ctx *gin.Context) {
noCache := util.GetNoCache(ctx)
currentPage := 0

companies, err := controller.GetAllCompanies(h.MongikClient, noCache)
currentPage, err := strconv.Atoi(ctx.Request.URL.Query().Get("page"))
companiesPerPage, err := strconv.Atoi(ctx.Request.URL.Query().Get("limit"))

companies, totalCompanies, err := controller.GetAllCompanies(h.MongikClient, noCache, currentPage, companiesPerPage)

if err != nil {
ctx.AbortWithStatusJSON(http.StatusBadRequest, gin.H{
Expand All @@ -23,6 +28,7 @@ func (h *Handler) GetAllCompanies(ctx *gin.Context) {
}

ctx.JSON(http.StatusOK, gin.H{
"data": companies,
"data": companies,
"totalCompanies": totalCompanies,
})
}