Categories
Mastering Development

Nodejs Webdav read multiple files

I am starting using NodeJs and webdav, I am using websockets to receive a list with the names of the images that I need to send to my app and then I have a for loop to send them to my app, but for some reason some of the images are undefined. I am starting […]

Categories
Development

Error 400 when trying to access Dropbox API via Dropbox Javascript SDK

I have an app that via Dropbox Javascript SDK trying to download the file. I don’t have any idea what is wrong. Accessing Dropbox API via fetch calls directly bringing the same error. Dropbox API documentation saying that error 400 is for bad input parameters while it looks like what I’m sending is ok – […]

Categories
Development

How to return all the data in INSERT command from postgres using NodeJs

This query insert data into my users table in Postgress, however, some other data are autogenerated where INSERT command is used.e.g userId which is primary key, isAdmin is boolean but default is false. How can i return all the data not just the inserted my data e.g const quertStrings = INSERT INTO users(email, first_name,last_name, password)VALUES($1, […]

Categories
Database Development

How to Get DDL for Oracle Database for user having only restricted access

Can anyone help me in resolving ORA-01489 issue causing string concatenation too long. I am trying to create DDL script from Oracle database with respect to Impala and used listAGG for getting datacolumn and it’s dataType, this is were i am facing the issue of concatenation. since i’m new to Oracle, i am stuck in […]

Categories
Development Linux Plugins Ubuntu

Landscape script “update_security_db.sh” doen’t run after uprgade

After a dist-upgrade to Ubuntu 18.04.3 LTS, followed by an update from Landscape 18.xx to 19.10 the update_security_db.sh script doesn’t run anymore. Servername is all lowercase and hasn’t been changed. /var/log/landscape-server/update-security-db.log says: Nov 20 11:41:03 update-security-db ERR Traceback (most recent call last): Nov 20 11:41:03 update-security-db ERR File “./process-usns”, line 7, in <module> Nov 20 […]

Categories
Development

Why isn’t pdffiller checking my PDF checkbox?

We are using the npm package pdffiller to fill in PDFs with our data. On 1 PDF, we have set the export value of checkboxes to ‘Yes’ and it checks the boxes fine. On another, we have done the same but it is not checking the boxes. Im attaching the PDF. Note, we are only […]

Categories
Development

How to send a binary/wasm file from NestJs

I tried to send a WebAssambly file with my NestJs backend as follows @Get(‘wasm’) private getWasm(req: Request, res: Response) { fs.readFile(‘barfoo.wasm’, ‘binary’, (err: any, data: Buffer) => { res.setHeader(‘Content-Type’, ‘application/wasm’); res.status(200).end(data); }); } However, in the browser I see the following error But when I serve the file as follows @Get(‘wasm’) private getWasm(req: Request, res: […]

Categories
Development

Error when loading WebAssembly file from NestJs backend

I’m trying to load a WebAssembly file into the browser. I’m trying to load this library and when I try to do what is described I get an error const worker = new Worker(‘http://localhost:3000/webworker-wasm’) VM114:1 Refused to create a worker from ‘http://localhost:3000/webworker-wasm’ because it violates the following Content Security Policy directive: “default-src ‘none'”. Note that […]

Categories
Development

Functions are not working (my first C project)

Hello, I am a college student new to C and this is my first project to work on. Here is the description: Write a program that takes in n arguments but requires at least 3 arguments. The first argument should be the base in which you are providing numbers in. The second arguments should be […]

Categories
Development Ruby

Ruby encoding ASCII_8BIT and extended ASCII

About ASCII_8BIT Encoding::ASCII_8BIT is a special encoding that is usually used for a byte string, not a character string. But as the name insists, its characters in the range of ASCII are considered as ASCII characters. This is useful when you use ASCII-8BIT characters with other ASCII compatible characters. Source: ruby-doc.org/core-2.6.4 Context I want to […]