Concepts,,,,(සංකල්ප)

When I was using firebase storage from the client side without admin sdk , I got the following error with the authenticated user, when I am uploading an image.   var temp = storage.ref().child("temp")                          .child(file.name);     temp.put(file)     .then(snap => { .... } Firebase Response  : Firebase Response  : FirebaseStorageError {code_: "storage/unauthorized", message_: "Firebase Storage: User does not have permission to access 'temp/50.png'.", serverResponse_: "{ ↵   "error": { ↵     "code": 403, ↵     "message": "Pe…n denied. Could not perform this operation" ↵   } ↵ }", name_: "FirebaseError"} The error is due to the issue in firebase storage rules. The document pages do not specify how to set permission to all the objects under the given folder . However , they have given an example, to resolve the issue. See the example at t

The brackets in the Google cloud storage or Firebase storage have a permission set which is common to all files. However, we should have the capability to set the permission to each file as we need. Although I have discussed early in the post  Make Storage Public , the custom permission can correctly assign using  ALC. Refer the Doc:https://cloud.google.com/nodejs/docs/reference/storage/1.3.x/Acl#add If you are using a storage file you can access the file and do the modification.    const file = firebase.storage().bucket().file('originals/file.png');                                    const options = {                                     entity: 'allUsers',                                     role: storage.acl.READER_ROLE                                   };                             file.acl.add(options, function(err, aclObject) {}); If you are using a write stream, the process is a bit different. You have to create metadata variable a

 One of the big issue I face with google cloud storage is when I go to build a site which has public as well as private sections. Defult rule  as follows make the whole basket open to read which is not necessary.  match /{allPaths=**} {       allow read;       allow write: if request.auth != null;     } If you make a basket (generated)  base rule and try to access the file without token like below , it will gives permission issue . https://firebasestorage.googleapis.com/v0/b/<project id>.appspot.com/o/generated%test_400*400.png?alt=media&token= {   "error": {     "code": 403,     "message": "Permission denied. Could not perform this operation"   } } The issue have to resolve in google cloud storate admin by giving access to perticular basket. Ref : https://cloud.google.com/storage/docs/access-control/making-data-public#objects Go to following URL : https://console.cloud.google.com/storage/browser?pr

When, I want to utise firebstore for the frist time in the google cloud functions,  the main problem I had to face it the integration issue raise as follows.  The google firebase and the google cloud storage eveloved seperately and in order to use the clould storage in firebase functions, the special autherntication need to be grantted even you are using firebase admin sdk. ApiError: Forbidden at new util.ApiError (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/src/util.js:107:10) at Object.parseHttpRespMessage (/user_code/node_modules/@google-cloud/storage/node_modules/@google-cloud/common/src/util.js:149:33) I implemeted the firebase admin sdk as follows. const firebaseAdmin = require("firebase-admin"); firebaseAdmin.initializeApp(functions.config().firebase); And firebase cloud bucket implemented  as follows . const storageRoot = firebaseAdmin.storage().bucket() Google document also indicate authentication req

Install MySql in MacOS Seirra can be done as follows. brew install mysql brew services start mysql mysqladmin -u root password 'newpassword' Login ; mysql -u root -p  Get Config Location : mysql --help | grep cnf Config Path :  export MYSQL_PATH=/usr/local/Cellar/mysql/8.0.12  PATH=$MYSQL_PATH/bin:$PATH Connect Squrel if you filed to collect  with mysql as follows :   MySQL said: Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/lib/plugin/caching_sha2_password.so, 2): image not found https://stackoverflow.com/questions/51179516/sequel-pro-and-mysql-connection-failed Go to my.cnf file and in section   [mysqld]   add line: default-authentication-plugin=mysql_native_password . Then, login to mysql server from terminal and run   mysql -u root -p , then inside shell execute this command:   ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '<password>'; exit f

Mac os Sierra defult comes with Apache as well as php 5.. Fi you want to start apache with defult settings The following articles gives short as well as comprehesive guideline. https://jason.pureconcepts.net/2016/09/install-apache-php-mysql-mac-os-x-sierra/ https://medium.com/@JohnFoderaro/how-to-set-up-apache-in-macos-sierra-10-12-bca5a5dfffba However , I wanted to setup firebase integration with laravel and it requires php 7. ( kreait/firebase-php ^ 4.0 ) You can eassy install php 7 using homebrew. brew tap homebrew/dupes brew tap homebrew/versions brew tap homebrew/homebrew-php brew unlink php56 brew install php70 Thin you can check the version as follows . $ php --version But if you have enabled defult php in Mac Os , you will see  it will return 5.6 In order to chanage this you have to edit the httpd.conf file of apache.  Stop apache -    sudo apachectl stop move to etc/ apache2. -    cd /etc/apache2 backup httpd.conf.   - sudo cp httpd.conf httpd.conf.er

 Although firebase functions document not mentioned about how many varible values can be exhist in firebase onWrite() tirgger , I have used it upto 2 levles without any issue.  For an exaplen in the blow code , I have consider the change in list under the userId ,, The value will be wrriten under the varible of user.  exports.testFunctionName = functions.database.ref('/user-list/{user}/{pushId}').onWrite(( change,context) => {             const original =  change.after.val();             var pushId=context.params.pushId;                 var userId=context.params.user; ...