Window Command line : Super easy command to search file in whole PC quickly

 1: cd "therootpath" 

2: dir "filename.extension" /s

For example search tje entire C drive : 
C:\>dir "myFile.jar" /s

Save me a day when searching for a jar file ...

安而後能慮。Think and plan , implement later . All about Patient .

成長可以很早,可以很晚。最近一年的感覺是,這件事,好像終於到我身上來了。
深深體會沒耐心的壞處,凡事等一等,是今年的大課題。

知止而後有定，定而後能靜；

靜而後能安，安而後能慮，慮而後能得。

太急進,急於求成,是很大的性格缺憾。管理人或事,都成很大的絆腳石。

上架Play Store 之路 : Java Keytool 的亂碼字符 還有 存取被拒 使用的簽署憑證即將過期 的解決方法

第一次做react native App , 因電腦配備低只用React Native Cli. 

需要 Keytool做keystore. 

然後遇上第一個難關:

Run 以下command ,出現了亂碼 :
keytool -genkey -v -keystore my_key_name.keystore -alias my_key_alias -keyalg RSA -keysize 2048 -validity 10000 

原因是中文Window OS (也可能只有Win 10 這樣?) 

解決方法是輸入 :　chcp 936 

將encoding 轉utf-8 . 

接著是第二個難關

密碼都打完了，卻發生存取被拒，無法生成keystore. 

解決方法是用管理員身份執行 Command line ... 😅

第三個難關

上載至Play Console 後,出現 

你上載的 APK 或 Android App Bundle 使用的簽署憑證即將過期，請使用有效期至較遠時間的憑證簽署 APK 或 Android App Bundle。

解決方法是修改validity 至更長時間

插曲 : 最後發現copy 至commandline時出錯,少copy 了validity..😭 

keytool -genkey -v -keystore my_key_name.keystore -alias my_key_alias -keyalg RSA -keysize 2048 -validity 20000 

第四個難關
是修改證書時間後再上載,然後出現的..

由於 Google Play 中已存在「com.xxx」，你需要改用其他套件名稱。

解決方法是修改build.gradle中的applicationId...

第5個難關

都上載完成了,但是測試員無法下載...
A testing version of this app hasn't been published yet or isn't available for this account.

後來終於找到類似的解答 : Alpha test (Closed test封閉測試) 要等Google Review完成,才可以讓測試員下載。

Quoted : "Every new app version that you release on Closed testing track are religiously reviewed by Google before they are made available to the testers. During this time, the release will show up as “in review” in the PlayStore console."

Ref : 這一篇關於Google Play Store Alpha Testing

根據文章資料,一般Google Review需要數小時至4天...

為了上架,撞得頭破血流了,希望快點Review完成,一切順利。

Batch Script : The mystery of setting variable inside for loop

 Spend whole day to figure out how to get a random terms inside for loop.

Tried %%list[!index!]%% , %list[!index!]% , !list[%index%]! many many combination. 

Finally, a "call" made the magic.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

@echo off setlocal enabledelayedexpansion REM Define the list set "list[0]=a" set "list[1]=b" set "list[2]=c" REM Enable delayed expansion within the loop for /l %%i in (1,1,3) do ( REM Generate a random index within the range of the list set /a "index=!random! %% 3" REM without that call, cannot get the string call set "randomString=%%list[!index!]%%" REM Print the iteration number and the corresponding random string echo Random string for iteration %%i: !randomString! ) endlocal

Colab Python web service : Cannot get expected return with json passing to REST API

Another silly mistake I made due carelessness .
I spent certain hours to just figure out the root-cause : Missing json.dumps when I pass the data.
Originally, I think put json content in header is OK...

#Call Rest API with json data
import requests
import json
import os

baseUrl = 'endpointAddr/api-link'

#Parameters
data = {
   "id":"1234568",
   "currency":"HKD",
   "amount":"1000"
}




#function to call
def callAPI():
    response = requests.post(baseUrl,headers={"Content-Type": "application/json","Authorization": "Bearer xxxxxxxxxxxxxxx"}, data=json.dumps(data))

    if response.status_code == 200:
       print('Access token test :' , response.json())
       authToken = response.json()['access_token']
       print('Access token:', authToken)
       return (authToken)
    else:
        print('Login failed with status code:', response.status_code , response.text)
        return (0)


#Main
response1 = callAPI()
print ('response 1 ' + response1)

Python Coding : Call Salesforce API using OAuth 2.0 JWT Bearer token Flow 以 Python 代碼實現Salesforce JWT 伺服器簽名驗證

Prequisites : Setup Connected App with  X509 Certification.

預設需要先在Salesforce 上載X509證書。詳細設定連接。（可接受自行簽署版本證書)

Details Set up in Salesforce side : link

#POC of JWT call to API#Colab install library with >> !pip install pyJWT[crypto]

import jwt
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import rsa
import time
import requests
import json

expTime = int(time.time()) + 900  #Unix Epoch Timestamp Expire time. 15mins buffer
jwt_algorithm = 'RS256'
jwt_private_key_file = '/myPath/server.key'
jwt_payload = {
  "iss": "clientid",
  "sub": "salesforce_username_email",
  "aud": "https://test.salesforce.com",
  "exp": expTime
}

jwt_header = {
  "alg": "RS256",
  "typ": "JWT"
}
salesforceEndpoint = 'https://test.salesforce.com/services/oauth2/token'
api_endpoint = 'https://instance_domain.my.salesforce.com/services/data/v57.0/sobjects/myObject__c'

test_data={
    "description": "PythonSent",
    "language": "en",
    "remarks": "xxx",
    "expiry_time": expTime+900,
    "created_time": expTime
}


def loginSfdc():
    # Load the private key 
    with open(jwt_private_key_file, 'r') as f:
        jwt_private_key = f.read()

    # Generate the JWT token
    jwt_token = jwt.encode(jwt_payload, jwt_private_key, algorithm=jwt_algorithm,headers=jwt_header)
    print('token : ' + jwt_token);
    salesforceUrlParams = {
        'grant_type' : 'urn:ietf:params:oauth:grant-type:jwt-bearer',
        'assertion' :jwt_token
    }

    response = requests.post(salesforceEndpoint, params=salesforceUrlParams, verify=False)

    if response.status_code == 200:
        authToken = response.json()['access_token']
        print('return token ' + authToken)
        return authToken
    else:
        print('Request failed with status code:', response.status_code)
        print('Request failed with status code:', response.text)
        return(0)

#function to call
def callSfdc_pocApi(authToken):
    session = requests.Session()
    rheaders = {
    'Authorization': 'Bearer ' + authToken,
    'Content-Type': 'application/json'
    }
   
    response = requests.post(api_endpoint,headers=rheaders, data=json.dumps(test_data))
    returnStr = ''
    if response.status_code == 200:
        data = response.json()
        returnStr = data
    else:
        print('Request failed with status code:', response.text)
        returnStr = response.status_code

    return returnStr

#Main
response1 = loginSfdc()
if not response1 == 0:
    response2 = callSfdc_pocApi(response1)
    print ("OK")
    print(response2)
else:
    print ('Failed to Login')

超老舊軟體PhotoImpact X3走在Window 10 , 停止在 "正在初始化主要視窗及元件"階段 . 錯誤碼0xc0000005解決方法

一直在Window 10 (64bit) 上使用PhotoImpact X3 都好好的,今天突然開不到。
查了很多資料,最後發現是暫存檔的問題。

把以下位置中所有今天才生成的檔案移走,重開就行了。
C:\Users\YOUR_NAME\AppData\Roaming\Ulead Systems\Ulead PhotoImpact\13.0\Ulead.DAT\

從中學開始用了PhotoImpact 系列20年,升學及工作都多用Photoshop,但自用時還是更喜歡輕量易用的PhotoImpact 呢!~