asmyk

export class UrlInterceptor implements HttpInterceptor {
  constructor(private configService: ConfigService) { }

  intercept(req: HttpRequest<any>, next: HttpHandler):
    Observable<HttpEvent<any>> {
    // get API url depending on actual enviroment(prod, local etc)
    const api_url = this.configService.getApiUrl();
    // concat method name with API url
    const request_url = api_url + req.url;
    const intercepted = req.clone({ url: request_url });

asmyk

export class UsersService {

  constructor(private http: HttpClient) { }

  getUsers() {
    // let's assume that we have same method names on local and prod
    const method = "/users";
    return this.http.get(method);
  }
}

asmyk

import { compose, withHandlers, withProps, withState, withStateHandlers } from "recompose";

function validateField(value, rules) {
    for (let rule in rules) {
        isRulePassed = rules[rule][0](value);

        if (!isRulePassed) {
            return rules[rule][1];
        }

asmyk

import React, { Component } from 'react';
import { compose, withHandlers, withProps, withState, withStateHandlers } from "recompose";
import { StyleSheet, Text, TextInput, View, Button } from 'react-native';
import { withFormData, withFormHandlers } from "./withFormData";

class MyForm extends Component {
    render() {
        let { formData: { name, age }, sendForm, updateFormData, formErrors } = this.props;

        return (

asmyk

class MyForm extends Component {
    render() {
        let { formData, onSubmitForm } = this.props;
        return (
            <View>
                <TextInput value={formData.name} />

                <TextInput value={formData.email} />

asmyk

import React, { Component } from 'react';
import { StyleSheet, Text, TextInput, View, Button } from 'react-native';

class MyForm extends Component {
    constructor(props) {
        super(props);
        this.state = {
            name: "",
            email: ""
        }