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http response returns some empty fields on making a backend call to a database record with no empty fields. #41412

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karasuno7 opened this issue Sep 15, 2020 · 1 comment

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@karasuno7
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@karasuno7 karasuno7 commented Sep 15, 2020

What version of Go are you using (go version)?

$ go version
go version go1.15.1 darwin/amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/adelicia/Library/Caches/go-build"
GOENV="/Users/adelicia/Library/Application Support/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/adelicia/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/adelicia/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/1v/60bjrxr975b8_gm7rx8_0zyr0000gn/T/go-build688238576=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

I'm making an HTTP request to the go backend server which fetches the record from mongodb atlas database.
Database contains just one record:
Screen Shot 2020-09-15 at 6 43 29 PM

GetProfile returns UserProfile user

func GetProfile(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Content-Type", "application/json")
w.Header().Set("Access-Control-Allow-Methods", "GET")
params := mux.Vars(r)
var user models.UserProfile
fmt.Println("getProfile for : ", params["uid"])
filter := bson.M{"uid": params["uid"]}
err := collection.FindOne(context.Background(), filter).Decode(&user)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte({ "message": " + err.Error() + " }))
return
// user = createUser(params["uid"])
}
json.NewEncoder(w).Encode(user)
}

router snippet

router := mux.NewRouter()
router.HandleFunc("/api/userProfile/{uid}", middleware.GetProfile).Methods("GET", "OPTIONS")

data-struct

type UserProfile struct {
ID primitive.ObjectID json:"_id" bson:"_id"
UserID string json:"uid" bson:"uid"
Pantry []string json:"pantry" bson:"pantry"
Cart []string json:"cart" bson:"cart"
Favourites []string json:"fav" bson:"fav"
}

What did you expect to see?

url in postman: http://localhost:8080/api/userProfile/aditit@andrew.cmu.edu

Screen Shot 2020-09-15 at 6 43 29 PM

What did you see instead?

Screen Shot 2020-09-15 at 6 52 08 PM

@davecheney
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@davecheney davecheney commented Sep 16, 2020

You have a mistake in your struct tags, go test will show you the problem.

Thank you for raising this issue. Unlike many projects, the Go project does not use GitHub Issues for general discussion or asking questions. GitHub Issues are used for tracking bugs and proposals only.

For asking questions, see:

@davecheney davecheney closed this Sep 16, 2020
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