Android - Failed to connect to rest API - Bad Request

Question

I'm trying to connect my android app with an API that runs on my PC.

I'm testing the app on my actual phone. The base URL is http://localhost:5000/api/.

object RequestManager {
    val interceptor = HttpLoggingInterceptor()
    val client = OkHttpClient.Builder().addInterceptor(interceptor).build()


    init {
        //TODO must be None at live
        interceptor.level = HttpLoggingInterceptor.Level.BODY
    }


    val retrofit = Retrofit.Builder()
        .baseUrl("http://localhost:5000/energy/api/")
        .addConverterFactory(GsonConverterFactory.create())
        .client(client)
        .build()

    val service = retrofit.create(Api::class.java)

}

I tried to go with http://< myIP >:5000/energy/api/ but I get a bad request message.

>   D/OkHttp: <-- 400 Bad Request

Any help?

Android has deprecated the use of clear text http traffic. Link(https://stackoverflow.com/questions/45940861/android-8-cleartext-http-traffic-not-permitted) to a related post, make sure you are not a victim of this. If yes, you will end up having an IOException like this - "..Exception: IOException java.io.IOException: Cleartext HTTP traffic to * not permitted" — Som, Feb 25 '20 at 00:24
@Som Yes that was a problem for me before, but I found that exact post and made it right. So it's not the problem now — ZookKep, Feb 25 '20 at 00:26

score 2 · Accepted Answer · answered Feb 26 '20 at 12:38

2

Try using ngrok. Could be solution to your problem as you insert localhost and port and it gives you a URL to work with.

answered Feb 26 '20 at 12:38

Littlish

455
2
11

score 0 · Answer 2 · answered Feb 25 '20 at 13:07

0

If you are using this base URL is http://localhost:5000/api/ or <PC IP> then run your app on emulator not on actual device because all code and api are running in your local server.

answered Feb 25 '20 at 13:07

Divyanshu

462
6
17

Android - Failed to connect to rest API - Bad Request

2 Answers2