This act extracts all arrays from input JSON and extends their elements with the core object.
Petr Cermak- Modified
- Users20
- Runs485
Dockerfile
# First, specify the base Docker image. You can read more about
# the available images at https://sdk.apify.com/docs/guides/docker-images
# You can also use any other image from Docker Hub.
FROM apify/actor-node:16
# Second, copy just package.json and package-lock.json since those are the only
# files that affect "npm install" in the next step, to speed up the build.
COPY package*.json ./
# Install NPM packages, skip optional and development dependencies to
# keep the image small. Avoid logging too much and print the dependency
# tree for debugging
RUN npm --quiet set progress=false \
&& npm install --only=prod --no-optional \
&& echo "Installed NPM packages:" \
&& (npm list || true) \
&& echo "Node.js version:" \
&& node --version \
&& echo "NPM version:" \
&& npm --version
# Next, copy the remaining files and directories with the source code.
# Since we do this after NPM install, quick build will be really fast
# for most source file changes.
COPY . ./
# Optionally, specify how to launch the source code of your actor.
# By default, Apify's base Docker images define the CMD instruction
# that runs the Node.js source code using the command specified
# in the "scripts.start" section of the package.json file.
# In short, the instruction looks something like this:
#
# CMD npm start
README.md
# My beautiful actor
Contains a documentation what your actor does and how to use it,
which is then displayed in the app or library. It's always a good
idea to write a good README.md, in a few months not even you
will remember all the details about the actor.
You can use [Markdown](https://guides.github.com/features/mastering-markdown/)
language for rich formatting.
main.js
const Apify = require('apify');
function extractArrays(obj){
const arrays = {};
for(let key in obj){
const val = obj[key];
if(Array.isArray(val)){
arrays[key] = val;
delete obj[key];
}
}
return arrays;
}
function extendArray(array, name, extObj){
const result = [];
for(let elem of array){
result.push(({[name]: elem,... extObj }));
}
return result;
}
function getExtended(obj){
let results = [];
const arrays = extractArrays(obj);
for(let key in arrays){
results = results.concat(extendArray(arrays[key], key, obj));
}
return results;
}
Apify.main(async () => {
const input = await Apify.getValue('INPUT');
let output = [];
for(let inObj of input){
output = output.concat(getExtended(inObj));
}
await Apify.setValue('OUTPUT', output);
});package.json
{
"name": "my-actor",
"version": "0.0.1",
"dependencies": {
"apify": "^2.2.2"
},
"scripts": {
"start": "node main.js"
},
"author": "Me!"
}
