"DatabaseError: Can't Load Database" when push() immediately follows a database creation for non-existing file about node-json-db

[Belphemur]

When you create the JsonDB object, the lib will create the file if it doesn't exists and should log: "[JsonDB] DataBase " + self.filename + " created."

In fact, I'm quite sure the program you launch that use the library doesn't have the right to write in the current directory.

Try with a path like /tmp/myDb or any other path that you're sure your program can write to.

[HowardPautz]

Might be an async bug after all. I'm getting the same error as @vihanP on both a Mac OSX and a linux (Ubuntu) box.

My node / npm install is fresh and clean.
I have full rights to install and code directories, so
installed as:

npm install node-json-db --save

I just copied and pasted the first three lines of code from the first example:

var JsonDB = require('node-json-db');
var db = new JsonDB("myDataBase", true, false);
db.push("/test1","super test");

saved as foobar.js
running node foobar.js

results in

~/0-JS-tests/node_modules/node-json-db/JsonDB.js:204

            throw error;
            ^
NestedError: Can't Load Database
    at DatabaseError.Error (native)
    at DatabaseError.NestedError (~/0-JS-tests/node_modules/node-json-db/lib/Errors.js:7:25)
    at new DatabaseError (~/0-JS-tests/node_modules/node-json-db/lib/Errors.js:29:33)
    at JsonDB.load (~/0-JS-tests/node_modules/node-json-db/JsonDB.js:202:25)
    at JsonDB._getData (~/0-JS-tests/node_modules/node-json-db/JsonDB.js:74:14)
    at JsonDB._getParentData (~/0-JS-tests/node_modules/node-json-db/JsonDB.js:60:44)
    at JsonDB.push (~/0-JS-tests/node_modules/node-json-db/JsonDB.js:142:27)
    at Object.<anonymous> (~/0-JS-tests/node-json-db/foobar.js:10:4)
    at Module._compile (module.js:434:26)
    at Object.Module._extensions..js (module.js:452:10)

commenting out the third line
// db.push("/test1","super test");
and running again, creates the DB --- and then the samples work.

I also tried to create an empty DB before running the three lines uncommented, by doing merely:
echo > myDataBase.json
but the initial push() still failed with same error. (Not sure how vihanp created his empty version.)

Besides confirming the bug, I wonder if @vihanP is on to something here - that there is some kind of async error here. The reason is that I can get the same error on the second push (), when the first push() worked.

thanks for your efforts - this is a nice idea!

• H

[Belphemur]

You are both right... Sorry @vihanP
I'm using mkdirp to create directory that are set in the path of the database, for an unknown reason I didn't use the sync version of it, which lead to this bug. I reproduced, tested and corrected it.

I'll release the new version soon. Thanks.