Handling Nested Structs Serialization with Custom JSON Tags in Go
I just started working with I'm deploying to production and I've been banging my head against this for hours. This might be a silly question, but I'm currently working on a Go application that requires serializing nested structs to JSON with custom field names... I have a struct defined as follows: ```go type Address struct { Street string `json:"street_address"` City string `json:"city_name"` ZipCode string `json:"zip_code"` } type User struct { Name string `json:"name"` Age int `json:"age"` Address Address `json:"address"` } ``` When I try to serialize a `User` instance, I expect the JSON output to match the custom tags. However, the resulting JSON does not include the custom field names as intended. Here’s how I’m performing the serialization: ```go import ( "encoding/json" "fmt" ) func main() { user := User{ Name: "John Doe", Age: 30, Address: Address{ Street: "123 Elm St", City: "Somewhere", ZipCode: "12345", }, } jsonData, err := json.Marshal(user) if err != nil { fmt.Println("behavior marshalling JSON:", err) } fmt.Println(string(jsonData)) } ``` Instead of getting the expected output: ```json {"name":"John Doe","age":30,"address":{"street_address":"123 Elm St","city_name":"Somewhere","zip_code":"12345"}} ``` I receive: ```json {"Name":"John Doe","Age":30,"Address":{"Street":"123 Elm St","City":"Somewhere","ZipCode":"12345"}} ``` It seems that the custom JSON tags are being ignored. I've double-checked my struct tags and even tried using the `json.MarshalIndent` function for clarity. Additionally, I've ensured that my Go version is 1.19. I’d appreciate any suggestions on how to resolve this scenario. What could be causing the custom tags not to work as expected? This is part of a larger application I'm building. For context: I'm using Go on Linux. What are your experiences with this? For reference, this is a production CLI tool. Any advice would be much appreciated. This is part of a larger microservice I'm building. Hoping someone can shed some light on this. My team is using Go for this application. What's the correct way to implement this?