Invalid field name in struct literal Golang

I have this struct call Status and have inside another struct call Data

package model

import "time"

type Status struct {
	Data struct {
        OrderId                   string    json:"orderId"
		DisputeStatus             string    json:"disputeStatus"
		DisputeCauseCategoryName  string    json:"disputeCauseCategoryName"
		ReverseLogisticCost         string        json:"ReverseLogisticCost"
		
	} json:"data"
	StatusJ string json:"status" 
}

And i have this function

func (s StatusServices) UpdateStatusItem(ctx context.Context, status model.Status) (error) {

		statusDetails := model.Status{
			
				OrderID: status.Data.OrderID,
		}

} 

In OrderId appear the error Invalid field name, i tried with this

statusDetails := model.Status{
			Data: status.Data{
				OrderID: status.Data.OrderID,
			},
		}

but i doesn't work, what can i do

The type model.Status has a field Data with a type defined as

struct {
    OrderId                   string    json:"orderId"
    DisputeStatus             string    json:"disputeStatus"
    DisputeCauseCategoryName  string    json:"disputeCauseCategoryName"
    ReverseLogisticCost       string    json:"ReverseLogisticCost"       
}

To initialize the variable, you can use a composite literal, more specifically a struct literal

func main() {
	s := Status{
		Data: struct {
			OrderId                  string `json:"orderId"`
			DisputeStatus            string `json:"disputeStatus"`
			DisputeCauseCategoryName string `json:"disputeCauseCategoryName"`
			ReverseLogisticCost      string `json:"ReverseLogisticCost"`
		}{OrderId: "123456"},
	}
	fmt.Println(s)
}

https://play.golang.org/p/nLhLHNNf7Jb

I do not believe you can initialize a struct with a nested struct this way.

Best is to give the nested struct its own type. OR you can start with an empty struct (eg var m model.Status) and then (in a separate line) assign to s.Data.OrderId.

I believe you can only assign to a nested struct if you define and initialize it in one go (as is often done in go tests) which is consistent with the idea that this construct is useful only for onetime off uses.

Not sure it answers your question, but you may want to modify your model a little bit from :

type Status struct {
    Data struct {
        OrderId                   string    json:"orderId"
        DisputeStatus             string    json:"disputeStatus"
        DisputeCauseCategoryName  string    json:"disputeCauseCategoryName"
        ReverseLogisticCost         string        json:"ReverseLogisticCost"
        
    } json:"data"
    StatusJ string json:"status" 
}

To:

type Status struct {
    Data      Data      `json:"data"`
    StatusJ   string    `json:"status"`
}

type Data struct {
    OrderID                   string    `json:"orderId"`
    DisputeStatus             string    `json:"disputeStatus"`
    DisputeCauseCategoryName  string    `json:"disputeCauseCategoryName"`
    ReverseLogisticCost       string    `json:"reverseLogisticCost"`
}

• Check the capital letter; in your example you had OrderId in your Data struct but status.Data.OrderID in your function.
• Also your field Status does not contain an OrderID field which you were setting in your function.
• As mentionned in comment, backticks were missing around your json tags.

A proper IDE would catch those.

Change OrderID to OrderId,declare the field's type upfront as per suggestion of mkopriva:

package main

import (
	"fmt"
)

type StatusData struct {
	OrderId                  string `json:"orderId"`
	DisputeStatus            string `json:"disputeStatus"`
	DisputeCauseCategoryName string `json:"disputeCauseCategoryName"`
	ReverseLogisticCost      string `json:"ReverseLogisticCost"`
}

type Status struct {
	Data    StatusData
	StatusJ string
}

func main() {
	s := Status{Data: StatusData{OrderId: "123456"}}
	fmt.Println(s)
}

Output:

{{123456   } }