[nodejs] fs.writeFileSync and fs.inlinkSyn to a particular file not working
I am trying to update a certain file with the writeFileSync method but it
is not working
"negotiate": function(menu){
if (menu) {
//this would be changed later to the appropraite request
//get url from menu
//getting task list quesions
menu = fs.readFileSync(rootPath + menu.output, 'utf8');
menu = JSON.parse(menu);
}
var userData = fs.readFileSync(this.pathToUserTable(), 'utf8');
userData = JSON.parse(userData);
userData = this.updateUserDataForNegotiate(userData, menu);
//fs.unlinkSync(this.pathToUserTable());//this not working
fs.writeFileSync(this.pathToUserTable(), JSON.stringify(userData));//this
not working
fs.writeFileSync(rootPath + "/database/users/test.json", JSON.stringify(
userData));//this is working
this.res.send(menu);
},
This is very weird and frustrating, I have been trying for hours to get it
to work. Pls I need help.
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[nodejs] Re: ShelljsExec return \n on parsing
You can try a simple parseFloat:
const balance = parseFloat(data);
Just make sure you get an actual number.
On Sunday, June 18, 2017 at 7:12:46 AM UTC+2, Woukaine Beyond wrote:
>
> Hi,
>
> I use this script for get my bitcoin balance :
>
> app.get('/GET/MY/BITCOIN/BALANCE', function (req, res) {
> if( isConnected(req) == true)
> {
> var child = exec('cd /home/rpcdaemon/wallets/bitcoin-0.14.1/bin;
> ./bitcoin-cli getbalance ' + req.params.account, {async:true});
> child.stdout.on('data', function(data) {
> var bitcoin_balance = data;
> res.send({"success":true, bitcoin_balance:bitcoin_balance});
> });
> }
> });
>
> the variable "bitcoin_balance" == 0.0 but return 0.0\n to my
> json...
>
> How to fix it ? Thx !
>
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[nodejs] Embedding nodejs and addon in the same binary (C++).
Hello,
I've started doing a simple project, but I've hit a brick-wall on how to
achieve certain "effects"
First things first. I have a Win32 application that embeds nodejs
enviroment, for simplicity, let's say I have this simple code responsible
for embedding node:
int main(int argc, char* argv[])
> {
> node::Start(argc, argv);
> return 0;
> }
When run, it works as expected.
Now, I wanted to add some addons for it. Let's say I have written a simple
addon:
#include
> NAN_METHOD(hello)
> {
> info.GetReturnValue().Set(Nan::New("hello world!").ToLocalChecked());
> }
> NAN_MODULE_INIT(Init)
> {
> NAN_EXPORT(target, hello);
> }
> NODE_MODULE(addon, Init)
If I compile it as external module and execute var addon =
require('./addon.node') everything works great, but I want to have this
already embedded when nodejs starts.
I know this is possible as nodejs itself does this, but I haven't yet
figured out how to do this. Does anyone have an idea how do I combine the
two c++ files into one binary that will work without the need to import the
plugin?
With best regards,
Piotr
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