Image Not Showing Possible Reasons

The image file may be corrupted
The server hosting the image is unavailable
The image path is incorrect
The image format is not supported

將LineBot發布到 Deta.sh 中 (Deta.sh已停止服務，轉移到Deta.space，此文待修中…)

tags: `deta.sh` `fasiapi` `flask` `linebot`

Heroku這幾年已是大家在學web api熱愛的平台，許多LINE Bot或是api服務都架在上面，不過他已經開始收費，這對於剛剛開始學習的學生來說造成了一些困擾，除了測試時可用ngrok取代，要發布時常因沒信用卡而無法取得Google Cloud RUN的測試帳號。

不過還好，現在還是有deta.sh平台可以發布，我測試了一下，把註冊到發布過程記錄下來。

將LineBot發布到 Deta.sh 中 (Deta.sh已停止服務，轉移到Deta.space，此文待修中…)

安裝與設定Deta CLI

"mac"

info 在Shell輸入:

curl -fsSL https://get.deta.dev/cli.sh | sh

"linux"

在Shell輸入:

curl -fsSL https://get.deta.dev/cli.sh | sh

"windows"

開啟PowerShell輸入:

iwr https://get.deta.dev/cli.ps1 -useb | iex

在安裝好之後登入deta

deta login 註冊並登入deta系統在Settings中Access Tokens -> Create Token ，出現

Items	Codes
Token ID	nQ7xxJxx
Access Token	nQ7xxJxx_cBb3ZpxxxxxxxxxxmkxxxxHixxxxcMxxx
Token Expiration	2023-12-18T10:36:49Z

要將copy-paste 存檔在 .deta/tokens中。

tokens
{
    "deta_access_token": "your_access_token"
}

第一個Micro "Hello, world!"

#登入deta
deta login

#新增一個deta-micro (deta叫他micro，如同heroku的dyno一樣)
deta new hello --python 
或是
mkdir hello
cd hello
deta new 

Successfully created a new micro
{
        "name": "hello",
        "id": "9dc------------------",
        "project": "c0ds8pt4",
        "runtime": "python3.9",
        "endpoint": "https://u3yc7d.deta.dev",
        "region": "ap-southeast-1",
        "visor": "disabled",
        "http_auth": "disabled"
}
你的api已經成功發布在 https://u3yc7d.deta.dev
超簡單的吧!

如果你的程式需要import其他的模組時(例如flask)，需要在deta-micro的目錄中新增 requirements.txt

如果使用flask
flask
line-bot-sdk

這樣他在deta new或 deta deploy時會自動將flask,line-bot-sdk模組載入。

如果使用fastapi
fastapi
line-bot-sdk

這樣他在deta new或 deta deploy時會自動將fastapi,line-bot-sdk模組載入。

LineBot- EchoBOT

這是我另一篇 My First Line Bot 的程式，現在我將它移植到deta.sh上
程序同上方

1. 新增一個目錄 mkdir echobot ; cd echobot

2. 新增一個 main.py (名稱一定要是main.py，deta.sh會自動執行它)，內容如下






























#使用flask
LINE_CHANNEL_ACCESS_TOKEN='Your channel token'
LINE_CHANNEL_SECRET='Your channel secret'

from flask import Flask, request
from linebot import LineBotApi, WebhookHandler
from linebot.exceptions import InvalidSignatureError
from linebot.models import MessageEvent, TextMessage, TextSendMessage

app = Flask(__name__)

line_bot_api = LineBotApi(LINE_CHANNEL_ACCESS_TOKEN)
handler = WebhookHandler(LINE_CHANNEL_SECRET)

@app.route("/", methods=["POST"])
def webhook_handler():
    # verify signature if needed
    # add logic to handle the request
    signature = request.headers['X-Line-Signature']
    body = request.get_data(as_text=True)
    try:
        handler.handle(body, signature)
    except InvalidSignatureError:
        raise HTTPException(status_code=400, detail="SignatureError")
    return 'OK'
 
@handler.add(MessageEvent, message=TextMessage)
def handling_message(event):
    line_bot_api.reply_message(event.reply_token,
        TextSendMessage(text=event.message.text))




































# 使用fastapi
LINE_CHANNEL_ACCESS_TOKEN='Your channel token'
LINE_CHANNEL_SECRET='Your channel secret'

from fastapi import FastAPI, Request
from linebot import LineBotApi, WebhookHandler
from linebot.exceptions import InvalidSignatureError
from linebot.models import MessageEvent, TextMessage, TextSendMessage

app= FastAPI()

line_bot_api = LineBotApi(LINE_CHANNEL_ACCESS_TOKEN)
handler = WebhookHandler(LINE_CHANNEL_SECRET)

#line_bot_api = LineBotApi(os.getenv("LINE_CHANNEL_ACCESS_TOKEN"))
#handler = WebhookHandler(os.getenv("LINE_CHANNEL_SECRET"))

# a POST route for our webhook events
@app.post("/")
async def webhook_handler(request: Request):
    # verify signature if needed
    # add logic to handle the request
    signature = request.headers['X-Line-Signature']
    body = await request.body()
    try:
        handler.handle(body.decode(),signature)
    except InvalidSignatureError:
        raise HTTPException(status_code=400, detail="SignatureError")
    
    return "ok"
    
@handler.add(MessageEvent, message=TextMessage)
def handling_message(event):
    line_bot_api.reply_message(event.reply_token,
        TextSendMessage(text=event.message.text))

3. deta new (新增micro)
















PS C:\project\deta\echobot> deta new
Successfully created a new micro
{
        "name": "echobot",
        "id": "be8xxxxxxxxxxxxxxxxxxxxxx",
        "project": "c0ds8pt4",
        "runtime": "python3.9",
        "endpoint": "https://e4vsf2.deta.dev",
        "region": "ap-southeast-1",
        "visor": "disabled",
        "http_auth": "disabled"
}
Adding dependencies...
Collecting flask
  Downloading https://files.pythonhosted.org/packages/0f/43/15f4f9ab225b0b25352412e8daa3d0e3d135fcf5e127070c74c3632c8b4c/Flask-2.2.2-py3-none-any.whl (101kB)
Collecting itsdangerous>=2.0

4. 檢查 flask(或fastapi) 與 line-bot-sdk是否匯入















 deta details
{
        "name": "echobot",
        "id": "39exxxxxxxxxxxxxxxxxxxxxxxxxx",
        "project": "default",
        "runtime": "python3.9",
        "endpoint": "https://5sj87w.deta.dev",
        "region": "ap-southeast-1",
        "dependencies": [
                "flask",
                "line-bot-sdk"
        ],
        "visor": "disabled",
        "http_auth": "disabled"
}

5. 將連接linebot的webhook填入develop-line中

將 deta.sh 提供的endpoint https://xxxx.deta.dev填入

林奇賢