Volley Codes

Codes.kt

//Add this permission in Manifest file
//<uses-permission android:name="android.permission.INTERNET"/>
//https://mature-octopus-causal.ngrok-free.app/api/people/new
//Code to send data to server
fun sendData(
    context: Context,
    names: String,
    //add all other fields here
    onSuccess: () -> Unit,
    onError: (String) -> Unit
) {
    val url = "ADD UR DJANGO/BE/NGROK ENDPOINT HERE"
    val requestQueue = Volley.newRequestQueue(context)
    val jsonBody = JSONObject().apply {
        put("names", names)
        //Add all fields here
    }

    val jsonRequest = object : JsonObjectRequest(
        Method.POST, url, jsonBody,
        Response.Listener { response ->
            Log.d("VolleyResponse", "Server response: $response")
            onSuccess()
        },
        Response.ErrorListener { error ->
            Log.e("VolleyError", "Error response: ${error.message}", error)
            onError(error.message ?: "Unknown error")
        }
    ) {
        override fun getHeaders(): MutableMap<String, String> {
            val headers = HashMap<String, String>()
            headers["Content-Type"] = "application/json"
            return headers
        }
    }
    requestQueue.add(jsonRequest)
}


//Code to fetch from the server
fun fetchUsers(
    context: Context,
    onSuccess: (List<User>) -> Unit,
    onError: (String) -> Unit
) {
    val url = "ADD UR DJANGO/BE/NGROK ENDPOINT HERE" // Replace with your real URL

    val requestQueue = Volley.newRequestQueue(context)

    val jsonArrayRequest = JsonArrayRequest(
        Request.Method.GET, url, null,
        { response ->
            val users = mutableListOf<User>()
            for (i in 0 until response.length()) {
                val obj = response.getJSONObject(i)
                val user = User(
                    id = obj.getInt("id"),
                    names = obj.getString("names"),
                    //Parse all other fields here
                )
                users.add(user)
            }
            onSuccess(users)
        },
        { error ->
            onError(error.message ?: "Error fetching users")
        }
    )

    requestQueue.add(jsonArrayRequest)
}


//Code for dropdown menu
ExposedDropdownMenuBox(expanded = expanded, onExpandedChange = { expanded = !expanded }) {
            OutlinedTextField(
                value = selectedEduLevel,
                onValueChange = {},
                readOnly = true,
                label = { Text("Education Level") },
                trailingIcon = {
                    ExposedDropdownMenuDefaults.TrailingIcon(expanded = true)
                },
                modifier = Modifier
                    .fillMaxWidth()
                    .menuAnchor(type=MenuAnchorType.PrimaryEditable, enabled = true)
            )

            ExposedDropdownMenu(
                expanded = expanded,
                onDismissRequest = { expanded = false }) {
                eduLevels.forEach { level ->
                    DropdownMenuItem(
                        text = { Text(level) },
                        onClick = {
                            selectedEduLevel = level
                            expanded = false
                        }
                    )

                }
            }
        }