Feature example: File upload

{
    "actorSpecification": 1,
    "name": "feature-example-file-upload",
    "title": "Feature Example: File Upload",
    "description": "Show the File Upload input",
    "version": "0.0",
    "input": "./input_schema.json",
    "dockerfile": "../Dockerfile"
}

{
    "title": "Scrape data from a web page",
    "type": "object",
    "schemaVersion": 1,
    "properties": {
        "fileUrl": {
            "title": "URL of the file that should be processed",
            "type": "string",
            "description": "Under the hood, it's still just a string",
            "editor": "fileupload"
        }
    },
    "required": ["fileUrl"]
}

1import { Actor, log } from 'apify';
2import axios from 'axios';
3
4await Actor.init();
5
6// The fileupload input is just a friendlier UI for string.
7// That's what the Actor recieves.
8const { fileUrl } = await Actor.getInput();
9
10log.info('Got file url on the input', { fileUrl });
11
12// Treating the string as hopefully url of some file is up to the code.
13log.info('Using HEAD request with axios to get the content type...');
14const response = await axios.head(fileUrl);
15
16log.info(`Based on the response headers, the file is ${response.headers['content-type']}`);
17log.info(`And has ${response.headers['content-length']} Bytes`);
18
19await Actor.exit();

# configurations
.idea

# crawlee and apify storage folders
apify_storage
crawlee_storage
storage

# installed files
node_modules

# git folder
.git

# This file tells Git which files shouldn't be added to source control
.DS_Store
.idea
.zed
dist
node_modules
apify_storage
storage/*
!storage/key_value_stores
storage/key_value_stores/*
!storage/key_value_stores/default
storage/key_value_stores/default/*
!storage/key_value_stores/default/INPUT.json

# Specify the base Docker image. You can read more about
# the available images at https://docs.apify.com/sdk/js/docs/guides/docker-images
# You can also use any other image from Docker Hub.
FROM apify/actor-node:22

# Check preinstalled packages
RUN npm ls crawlee apify puppeteer playwright

# Copy just package.json and package-lock.json
# to speed up the build using Docker layer cache.
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 --omit=dev --omit=optional \
    && echo "Installed NPM packages:" \
    && (npm list --omit=dev --all || true) \
    && echo "Node.js version:" \
    && node --version \
    && echo "NPM version:" \
    && npm --version \
    && rm -r ~/.npm

# 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 . ./

# Create and run as a non-root user.
RUN adduser -h /home/apify -D apify && \
    chown -R apify:apify ./
USER apify

# Run the image.
CMD npm start --silent

{
    "name": "feature-example-file-upload",
    "version": "0.0.1",
    "type": "module",
    "description": "This is an example of an Apify Actor.",
    "engines": {
        "node": ">=18.0.0"
    },
    "dependencies": {
        "apify": "^3.2.6",
        "axios": "^1.5.0"
    },
    "scripts": {
        "start": "node ./src/main.js",
        "test": "echo \"Error: oops, the Actor has no tests yet, sad!\" && exit 1"
    },
    "author": "It's not you it's me",
    "license": "ISC"
}