How to send data to server in Retrofit Android-CodePudding

In my application I want send some data to server with @Body and I used Retrofit library.
In body class I have 2 items, ID and NAME.
When ID is filled, I should send just ID and not send NAME and when NAME is filled, I should send just NAME again not send ID!
Body model is:

data class BodyUserData(
    @SerializedName("types")
    var types: MutableList<Types?>? = null
) {
    data class Types(
        @SerializedName("name")
        var naName: String? = null,
        @SerializedName("id")
        var id: String? = null
    )
}

Api services codes:

@PATCH("update-data")
suspend fun updateUserData(@Header("Authorization") token: String, @Body body: BodyUserData):
        Response<ResponseUserData>

And I write below codes in activity for fill data:

RxBus.listen(RxEvents.TypesListEvent::class.java).subscribe {
    val typesList: MutableList<BodyUserData.Type?> = mutableListOf()
    it.data.forEach { item ->
        if (item.id == 0) {
            typesList.add(BodyUserData.Type(name = item.name))
        } else {
            typesList.add(BodyUserData.Type(id = item.id.toString()))
        }
    }
    body.type = typesList
}

After call Api and see send data in logcat show me body data such as below:

{"types":[{"name":"cars","id":null},{"name":null,"id":"1791538835"},{"name":null,"id":"1812286134"}]}

In above Json send null data but I want when data is null not send to server.
True Json is such as this:

{"types":[{"name":"cars"},{"id":"1791538835"},{"id":"1812286134"}]}

How can I it?

CodePudding user response：

You most remove serializeNulls() from your GsonBuilder that you pass to ConverterFactory of your retrofit so it avoid serialize null values.

CodePudding user response：

You can deal with it using MultipartBody

Api services codes: (paid attention to @Body body : RequestBody)

@PATCH("update-data")
suspend fun updateUserData(@Header("Authorization") token: String, @Body body : RequestBody): Response<ResponseUserData>

In Your activity

RxBus.listen(RxEvents.TypesListEvent::class.java).subscribe {
    val builder = MultipartBody.Builder().apply { setType(MultipartBody.FORM) }
    it.data.forEachIndexed { index, item ->
        if (item.id == 0) {
            builder.addFormDataPart("types[$index][name]", item.name)
        } else {
            builder.addFormDataPart("types[$index][id]", item.id.toString())
        }
    }
    val requestBody = builder.build() // Here you will get request body corresponding to your needs
}