Develop Reference

Flutter transak API

I'm try to transak application using flutter.
But I don't know much about the structure of the flutter, so I can't use the http communication provided by transak
I want to use the code using this OKHTTP as an http library supported by the flutter
OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\"apiKey\":\"YOUR_API_KEY\"}");
Request request = new Request.Builder()
.url("https://api-stg.transak.com/partners/api/v2/refresh-token")
.post(body)
.addHeader("accept", "application/json")
.addHeader("api-secret", "YOUR_API_SECRET")
.addHeader("content-type", "application/json")
.build();
Response response = client.newCall(request).execute();
I tried to use the 'Future' method, but I couldn't find a method like 'MediaType' or 'RequestBody'

Android HTTP Headers with API

What are headers used for if I want to do a post request & response ?
How is it possible to "save" token there ?
I can't find any good explanation about it.

you can use Retrofit to call api and store token into shared preferences and add common headers to OkhttpClient
val prefs = Prefs.getInstance();
val httpClient = OkHttpClient.Builder()
httpClient.addInterceptor { chain ->
val original = chain.request()
val request = original.newBuilder()
.header("Authorization", prefs.token)
.header("Accept", "application/json")
.method(original.method, original.body)
.build()
chain.proceed(request)
}
val interceptor = HttpLoggingInterceptor()
interceptor.level = HttpLoggingInterceptor.Level.BODY
httpClient.addInterceptor(interceptor)
val client = httpClient.build()
and make Retrofit object like this
Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(
GsonConverterFactory.create(
GsonBuilder().setPrettyPrinting().create()
)
)
.client(client).build()

Can't use RapidApi with Retrofit

I'm new with Retrofit and I'm trying to use Google Translate Api from RapidApi with Retrofit but i can't convert okhttp code snippet to retrofit
This is the sample code snippet for Post request working with OkHttp:
val client = OkHttpClient()
val mediaType = MediaType.parse("application/x-www-form-urlencoded")
val body = RequestBody.create(mediaType, "q=Hello%2C%20world!&target=es")
val request = Request.Builder()
.url("https://google-translate1.p.rapidapi.com/language/translate/v2")
.post(body)
.addHeader("content-type", "application/x-www-form-urlencoded")
.addHeader("Accept-Encoding", "application/gzip")
.addHeader("X-RapidAPI-Host", "google-translate1.p.rapidapi.com")
.addHeader("X-RapidAPI-Key", API_KEY)
.build()
val response = client.newCall(request).execute()
i want to make same request with Retrofit in android
This is my api interface:
interface TranslatorApi {
#Headers(
"content-type: application/x-www-form-urlencoded",
"Accept-Encoding: application/gzip",
"X-RapidAPI-Host: google-translate1.p.rapidapi.com",
"X-RapidAPI-Key: API_KEY
)
#POST("translate/v2")
suspend fun translate(
#Body q: String,
#Query("target") target: String,
#Query("source") source: String
): Response<GoogleTranslateObject>
}

OkHttp Websockets - Add a body when connecting to websocket

I am using the okHttp websocket library and I am successfully connecting to my websocket server, but currently I am only getting the connection id when connected. I want to send some extra info in the body, but I don't know how to add it using okHttp
Request request = new Request.Builder()
.url("wss://mywebsocketurl.com")
.build();
I have tried
RequestBody requestBody = new FormBody.Builder()
.add("camera_id", "e9502c54-927c-4639-a94f-8d03149c9c62")
.build();
Request request = new Request.Builder()
.url("wss://mywebsocketurl.com")
.method("POST", requestBody)
.build();
Request request = new Request.Builder()
.url("wss://mywebsocketurl.com")
.post(requestBody)
.build();
But it keeps returning
java.lang.IllegalArgumentException: method GET must not have a request body.

I know it's too late to answer.
The url should anyways be GET only. So i made the connection and on onOpen callback function, i send the body. It worked.
private fun initializeSocket(url: String) {
val request: Request = Request.Builder().url(url).build()
val listener = WebSocketListener()
webSocket = client!!.newWebSocket(request, listener)
client?.dispatcher()?.executorService()?.shutdown()
}
private class WebSocketListener : WebSocketListener() {
override fun onOpen(webSocket: WebSocket, response: Response?) {
val content = "{\n" +
" \"messageType\": \"INIT_CONNECTION\"\n" +
"}"
webSocket.send(content)
}
...
}

How to pass JSON body using GET method in android?

I have specific document, which requires GET method type and also pass a JSON body
For example
curl -H "Content-Type: application/json" -X GET -d '{"Date":"10-10-2017"}'
https://apibaseurl.com:8081/apibaseurl/methodname
Its working fine in insomnia rest client. I have also written code for same. Please suggest if any way to get proper response
HttpResponse<String> response = Unirest.get("url")
.header("cookie", "PHPSESSID=7aikas61q77eskm3k1sfon5bq7")
.header("Authorization", "Basic authantication=")
.header("content-type", "application/json")
.body("{\"Date\":\"10-10-2017\"}")
.asString();
I have also write code using okhttp but not working.
OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\"Date\":\"10-10-2017\"}");
Request request = new Request.Builder()
.url("url")
.get()
.addHeader("cookie", "PHPSESSID=7aikas61q77eskm3k1sfon5bq7")
.addHeader("authorization", "Basic YXBpcHVidXNlcjpzX20kVDJdXVNNbTY=")
.addHeader("content-type", "application/json")
.build();
Response response = client.newCall(request).execute();