install env for project
pipenv install
activate
pipenv shell
install django
pipenv install django~=3.1.4
start django project
django-admin startproject shop_django;
cd shop_django;
start server
python manage.py runserver;
open next link
http://127.0.0.1:8000/
delete post
github
https://github.com/manas-anarov/django_3_ninja/tree/5_part
blog/views.py
from .serializers import (
ListSerializer,
AddSerializer,
ShowSerializer,
DeleteSerializer,
)
from rest_framework.generics import (
ListAPIView,
CreateAPIView,
RetrieveAPIView,
DestroyAPIView,
)
from blog.models import Post
class DeletePost(DestroyAPIView):
queryset = Post.objects.all()
serializer_class = DeleteSerializer
lookup_field = 'id'
blog/serializers.py
class DeleteSerializer(ModelSerializer):
class Meta:
model = Post
blog/urls.py
urlpatterns = [
path('list/', views.PostListAPIView.as_view(), name='blog-list'),
path('add/', views.AddPost.as_view(), name='blog-add'),
path('<id>/', views.ShowPost.as_view(), name='blog-show'),
path('delete/<id>/', views.DeletePost.as_view(), name='blog-delete'),
]
runserver
python manage.py runserver
open link
http://localhost:8000/api/v1/post/list
delete post
http://localhost:8000/api/v1/post/delete/1
platform.json
{
"platform": [{
"name": "Windows"
},
{
"name": "Linux"
},
{
"name": "MacOs"
}
]
}
AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.samuray.myapplication.MainActivity">
<ListView
android:id="@+id/lvMain"
android:layout_width="368dp"
android:layout_height="495dp"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp" />
</android.support.constraint.ConstraintLayout>
res/layout/item.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#FFF"
android:gravity="left">
<TextView
android:layout_height="25dp"
android:layout_width="wrap_content"
android:text="+15"
android:textColor="#000"
android:textSize="19sp"
android:id="@+id/name_item"
android:textStyle="bold"
android:gravity="center"/>
</LinearLayout>
MainActivity.java
package com.example.samuray.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.os.AsyncTask;
import android.util.Log;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new ParseTask().execute();
}
private class ParseTask extends AsyncTask<Void, Void, String> {
HttpURLConnection urlConnection = null;
BufferedReader reader = null;
String resultJson = "";
@Override
protected String doInBackground(Void... params) {
try {
String $url_json = "http://www.anar8.ru/test/1/platform.json";
URL url = new URL($url_json);
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.connect();
InputStream inputStream = urlConnection.getInputStream();
StringBuffer buffer = new StringBuffer();
reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
resultJson = buffer.toString();
Log.d("FOR_LOG", resultJson);
} catch (Exception e) {
e.printStackTrace();
}
return resultJson;
}
protected void onPostExecute(String strJson) {
super.onPostExecute(strJson);
final ListView lView = (ListView) findViewById(R.id.lvMain);
String[] from = {"name_item"};
int[] to = {R.id.name_item};
ArrayList<HashMap<String, String>> arrayList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> hashmap;
try {
JSONObject json = new JSONObject(strJson);
JSONArray jArray = json.getJSONArray("platform");
for (int i = 0; i < jArray.length(); i++) {
JSONObject friend = jArray.getJSONObject(i);
String nameOS = friend.getString("name");
Log.d("FOR_LOG", nameOS);
hashmap = new HashMap<String, String>();
hashmap.put("name_item", "" + nameOS);
arrayList.add(hashmap);
}
final SimpleAdapter adapter = new SimpleAdapter(MainActivity.this, arrayList, R.layout.item, from, to);
lView.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
github
https://github.com/manas-anarov/django_3_ninja/tree/4_part
blog/views.py
from .serializers import (
ListSerializer,
AddSerializer,
ShowSerializer,
)
from rest_framework.generics import (
ListAPIView,
CreateAPIView,
RetrieveAPIView,
)
from blog.models import Post
class ShowPost(RetrieveAPIView):
queryset = Post.objects.all()
serializer_class = ShowSerializer
lookup_field = 'id'
blog/serializers.py
class ShowSerializer(ModelSerializer):
class Meta:
model = Post
fields = [
'id',
'title',
'text',
]
blog/urls.py
urlpatterns = [
path('list/', views.PostListAPIView.as_view(), name='blog-list'),
path('add/', views.AddPost.as_view(), name='blog-add'),
path('<id>/', views.ShowPost.as_view(), name='blog-show'),
]
open link
http://localhost:8000/api/v1/post/list
show one post
http://localhost:8000/api/v1/post/1
Uploading file using api in django rest framework. PythonAnywhere
https://youtu.be/BLN3EPjxQ_E
App.js
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View,
Button,
} from 'react-native';
export default class MyApp extends Component {
upload_image_to_django (){
PicturePath = "file:///storage/emulated/0/Download/myfoto.jpg";
URLpath = "http://manas93.pythonanywhere.com/file/upload/";
var formData = new FormData();
formData.append("file", {uri: PicturePath, name: 'myfoto.jpg', type: 'image/jpg'});
formData.append("remark", "Hello");
fetch( URLpath, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'multipart/form-data',
},
body: formData
})
.then((responseJson) => {
console.log(responseJson);
})
.catch(error => {
console.log(error);
})
}
render() {
return (
<View style={styles.content}>
<Button
title="My Button"
onPress={this.upload_image_to_django}
/>
</View>
);
}
}
var styles = StyleSheet.create({
content:{
flex:1,
flexDirection:'row',
alignItems:'center',
justifyContent:'center'
}
});
github
https://github.com/manas-anarov/django_3_ninja/tree/3_part
blog/views.py
from .serializers import (
ListSerializer,
AddSerializer,
)
from rest_framework.generics import (
ListAPIView,
CreateAPIView,
)
from blog.models import Post
class AddPost(CreateAPIView):
serializer_class = AddSerializer
queryset = Post.objects.all()
blog/serializers.py
lass AddSerializer(ModelSerializer):
class Meta:
model = Post
fields = [
'title',
'text',
]
blog/urls.py
urlpatterns = [
path('list/', views.PostListAPIView.as_view(), name='blog-list'),
path('add/', views.AddPost.as_view(), name='blog-add'),
]
open link
http://localhost:8000/api/v1/post/list
create post
http://localhost:8000/api/v1/post/add
open project folder
cd django_3_ninja
activate
pipenv shell
open folder
cd ninja_django
create app
python manage.py startapp blog
settings.py
INSTALLED_APPS = [
'blog',
]
blog/models.py
from django.db import models
class Post(models.Model):
timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
title = models.CharField(max_length=200)
text = models.CharField(max_length=500)
def __str__(self):
return self.title
blog/views.py
from .serializers import (
ListSerializer,
)
from rest_framework.generics import (
ListAPIView,
)
from blog.models import Post
class PostListAPIView(ListAPIView):
serializer_class = ListSerializer
queryset = Post.objects.all()
blog/serializers.py
from rest_framework.serializers import (
ModelSerializer,
)
from blog.models import Post
class ListSerializer(ModelSerializer):
class Meta:
model = Post
fields = [
'id',
'title',
'text',
]
ninja_django/urls.py
from django.contrib import admin
from django.urls import path
from django.conf.urls import include
urlpatterns = [
path('admin/', admin.site.urls),
path('api/v1/post/', include(('blog.urls', 'blog'), namespace='blog')),
]
blog/urls.py
from blog import views
from django.urls import path
urlpatterns = [
path('list/', views.PostListAPIView.as_view(), name='blog-list'),
]
install djangorestframework
pipenv install djangorestframework
settings.py
INSTALLED_APPS = [
'rest_framework',
]
blog/admin.py
from django.contrib import admin
from blog.models import Post
admin.site.register(Post)
create db
python manage.py makemigrations;
python manage.py migrate;
start server
python manage.py runserver;
create admin user
python manage.py createsuperuser
create post
http://localhost:8000/admin
open link
http://localhost:8000/api/v1/post/list
github
https://github.com/manas-anarov/django_3_ninja/tree/2_part
