Basic implementation not working on Android

[TomasMoskala]

Hi,
I have been struggling many weeks to get Apollo working on Android without success and I get no support from the team or community whatsoever.
This is my server (just copied from https://www.apollographql.com/docs/apollo-server/getting-started/)

const { ApolloServer, gql } = require('apollo-server');

// A schema is a collection of type definitions (hence "typeDefs")
// that together define the "shape" of queries that are executed against
// your data.
const typeDefs = gql`
  # Comments in GraphQL strings (such as this one) start with the hash (#) symbol.

  # This "Book" type defines the queryable fields for every book in our data source.
  type Book {
    title: String
    author: String
  }

  # The "Query" type is special: it lists all of the available queries that
  # clients can execute, along with the return type for each. In this
  # case, the "books" query returns an array of zero or more Books (defined above).
  type Query {
    books: [Book]
  }
`;
const books = [
  {
    title: 'Harry Potter and the Chamber of Secrets',
    author: 'J.K. Rowling',
  },
  {
    title: 'Jurassic Park',
    author: 'Michael Crichton',
  },
];
// Resolvers define the technique for fetching the types defined in the
// schema. This resolver retrieves books from the "books" array above.
const resolvers = {
  Query: {
    books: () => books,
  },
};
// The ApolloServer constructor requires two parameters: your schema
// definition and your set of resolvers.
const server = new ApolloServer({ typeDefs, resolvers });

// The `listen` method launches a web server.
server.listen(
  { port: 8080 }
).then(({ url }) => {
  console.log(`🚀  Server ready at ${url}`);
});

It works in playground it also works with Apollo client built in Angular and run in browser by Ionic. If I change the client's url to https://api.spacex.land/graphql/ then it also works on Android.

import {NgModule} from '@angular/core';
import {ApolloModule, APOLLO_OPTIONS} from 'apollo-angular';
import {HttpLinkModule, HttpLink} from 'apollo-angular-link-http';
import {InMemoryCache} from 'apollo-cache-inmemory';

const uri = 'http://test2-4246.rostiapp.cz/'; // https://api.spacex.land/graphql/ <-- add the URL of the GraphQL server here

export function createApollo(httpLink: HttpLink) {
  console.log('createApollo', httpLink);
  return {
    link: httpLink.create({uri}),
    cache: new InMemoryCache(),
  };
}

@NgModule({
  exports: [ApolloModule, HttpLinkModule],
  providers: [
    {
      provide: APOLLO_OPTIONS,
      useFactory: createApollo,
      deps: [HttpLink],
    },
  ],
})
export class GraphQLModule {}

I make the query like this:

    this.ds.watchQry(gql`
      query{
        books {
          title
          author
        }
      }
    `)
    .subscribe((result: ApolloQueryResult<any>) => {

      this.rows = result.data && result.data.books;
      this.loading = result.loading;
      this.error = result.errors;
    });

data.service.ts

  watchQry(qry: DocumentNode, vars?: R): Observable<ApolloQueryResult<Query>> {
    return this.apollo.watchQuery<Query>({ query: qry, variables: vars}).valueChanges;
  }

Why are my server and client not connecting on Android?

[TomasMoskala]

Solved