thirza258 commented 2 weeks ago

Question : Is there any way to Call Push Messages from Website POST Request

Description

I am trying to call the push_message function in my Django project when a POST request is made to my website. The push_message function should send a push message using the LINE Bot API. However, I am encountering issues with validation errors. Below is my current implementation.

Current Implementation example

Views

from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status
from linebot import LineBotApi, LineBotApiError
from linebot.models import TextSendMessage
import json
from .models import TextMessageUser
from .serializers import TextMessageUserSerializer

# Initialize Line Bot API with your Channel Access Token
line_bot_api = LineBotApi('YOUR_CHANNEL_ACCESS_TOKEN')

class TextMessageUserViews(APIView):
    def get(self, request):
        try:
            text_message_user = TextMessageUser.objects.all()
            serializer = TextMessageUserSerializer(text_message_user, many=True)
            return Response({"text_message_user": serializer.data}, status=status.HTTP_200_OK)
        except TextMessageUser.DoesNotExist:
            return Response({"error": "TextMessageUser not found"}, status=status.HTTP_404_NOT_FOUND)

    def post(self, request):
        try:
            id = request.data["id"]
            comment = request.data["comment"]
            text_message_user = TextMessageUser.objects.create(id=id, comment=comment)
            push_message()
            text_message_user.save()
            return Response({"text_message_user": "created"}, status=status.HTTP_201_CREATED)
        except KeyError:
            return Response({"error": "Invalid request"}, status=status.HTTP_400_BAD_REQUEST)

@handler.add(MessageEvent, message=TextMessage)
def handle_message(event):
    user_msg = event.message.text
    // { code for reply message}

@csrf_exempt
def push_message():
    try:
        line_bot_api.push_message(
            PushMessageRequest(
                to= " my user_id from event.source.user_id ",
                messages=[TextMessage(text="Hello, world!")]
            )
        )
    except LineBotApiError as e:
        print(e)

by the way, the code above not the real implementation but the example for real implementation

Problem I am encountering the following error when trying to call the push_message function:

pydantic.v1.error_wrappers.ValidationError: 1 validation error for PushMessageRequest
messages -> 0
value is not a valid dict (type=type_error.dict)

Any assistance or guidance on resolving this issue would be greatly appreciated. Thank you!

Yang-33 commented 2 weeks ago

Thank you for using line-bot-sdk-python, @thirza258 !

Is the import section of the sample you provided correct? PushMessageRequest exists only in linebot.v3.messaging.

from linebot.v3.messaging import (
    Configuration,
    ApiClient,
    MessagingApi,
    PushMessageRequest,
    TextMessage
    ...
)

It probably needs to be imported like this. Also, I think you need to define the client as shown in the README sample. https://github.com/line/line-bot-sdk-python?tab=readme-ov-file#synopsis

and ...

The sample in README:

        ReplyMessageRequest(
            reply_token=event.reply_token,
            messages=[TextMessage(text=event.message.text)]
        )

should work if rewritten like this, if you want to use push:

https://github.com/line/line-bot-sdk-python/blob/bdda65fd8dbc715e91564a05d146f4c2c0ed9511/examples/flask-kitchensink/app.py#L213-L219

thirza258 commented 2 weeks ago

I'm sorry that's true (looks like i'm making mistake on making the question) I'm using the following import statement in my implementation:

from linebot.v3.messaging import (
    Configuration,
    ApiClient,
    MessagingApi,
    PushMessageRequest,
    TextMessage
    ...
)

My implementation is primarily derived from the examples/flask-kitchensink/app.py example.

Based on the examples, I need to first send a "push" message to the Line bot by chatting "push" to it:

@handler.add(MessageEvent, message=TextMessageContent)
def handle_text_message(event):
    text = event.message.text
    with ApiClient(configuration) as api_client:
        line_bot_api = MessagingApi(api_client)

 {other code}
 elif text == 'push': 
     line_bot_api.push_message( 
         PushMessageRequest( 
             to=event.source.user_id, 
             messages=[TextMessage(text='PUSH!')] 
         ) 
     )

This will push the messages. What I expect is that when a user sends a POST request (example: making a comment) to my website that is the webhook website too, the push message gets called and sends the response from the Line bot to me as a chat. It functions like notifications but in the form of a chat from the Line bot. Is there any way to do that?

Yang-33 commented 2 weeks ago

We do not accept questions about general web application development. Sorry. You can save the userId in your application or database, and when your web app receives a request(like making a comment), your application can send a push request to the LINE Messaging API.

If the issue has been resolved, please close the issue.

thirza258 commented 2 weeks ago

Thank you so much for your assistance and taking the time to answer this question. I just figured it out. It turned out i'm using TextMessage instead of TextSendMessage. :)

line / line-bot-sdk-python