👀 Views: 97 💬 Answers: 1 📅 Created: 2025-06-14

go sqlx postgresql jsonb Go

I'm wondering if anyone has experience with I've encountered a strange issue with I'm working on a project and hit a roadblock. Hey everyone, I'm running into an issue that's driving me crazy. I'm working with an scenario when trying to unmarshal a JSONB field from a PostgreSQL database using the `sqlx` library in Go. I have a struct that represents the data, and one of the fields is of type `map[string]interface{}` to accommodate the dynamic nature of the JSON data. However, when I run my query, I get a `key not found` behavior when trying to access a field in the map that I know exists in the database. Here's my struct definition: ```go type User struct { ID int `db:"id"` Name string `db:"name"` Data map[string]interface{} `db:"data"` } ``` And my query looks like this: ```go var user User query := "SELECT id, name, data FROM users WHERE id = $1" err := db.Get(&user, query, userID) if err != nil { log.Fatalf("Failed to get user: %v", err) } ``` The `data` field in my PostgreSQL table is defined as `JSONB`, and I'm trying to access a specific key in the `Data` map after the query: ```go value, exists := user.Data["preferences"] if !exists { log.Println("Key 'preferences' not found in user data") } else { fmt.Println(value) } ``` When I check the contents of `user.Data`, it seems to be populated, but I still get the `key not found` behavior when I try to access the `preferences` key. I have confirmed that the JSONB data in the database contains this key. My Go version is 1.20, and I’m using `github.com/jmoiron/sqlx` version 1.3.5. Is there something I might be missing in the JSON unmarshaling process, or could it be related to how the data is stored in PostgreSQL? Any insights would be greatly appreciated! Has anyone else encountered this? For context: I'm using Go on macOS. I'm working on a REST API that needs to handle this. Thanks in advance! I've been using Go for about a year now. Has anyone else encountered this?