Wrangler Has a Free CLI API That Deploys Code to Cloudflare in Seconds

Wrangler is Cloudflare's CLI for Workers, Pages, R2, D1, KV, and Queues. Deploy globally in seconds from your terminal.

Quick Start

# Create a new project
npm create cloudflare@latest my-worker

# Dev mode with hot reload
wrangler dev

# Deploy globally
wrangler deploy

wrangler.toml: Configuration

name = "my-scraper-api"
main = "src/index.ts"
compatibility_date = "2026-03-01"

# Environment variables
[vars]
API_VERSION = "v2"
MAX_RESULTS = "100"

# Secrets (set via CLI)
# wrangler secret put API_KEY

# D1 Database
[[d1_databases]]
binding = "DB"
database_name = "scraping-db"
database_id = "xxxx-xxxx-xxxx"

# R2 Storage
[[r2_buckets]]
binding = "BUCKET"
bucket_name = "scraped-data"

# KV Namespace
[[kv_namespaces]]
binding = "CACHE"
id = "xxxx"

# Cron Triggers
[triggers]
crons = ["*/30 * * * *"]

# Routes
routes = [
  { pattern = "api.example.com/*", zone_name = "example.com" }
]

D1 Commands

# Create database
wrangler d1 create scraping-db

# Run SQL
wrangler d1 execute scraping-db --command "CREATE TABLE products (id INTEGER PRIMARY KEY, title TEXT, price REAL)"

# Run migrations
wrangler d1 migrations apply scraping-db

# Query
wrangler d1 execute scraping-db --command "SELECT * FROM products LIMIT 5"

# Export
wrangler d1 export scraping-db --output backup.sql

R2 Commands

# Create bucket
wrangler r2 bucket create scraped-data

# Upload file
wrangler r2 object put scraped-data/reports/2026-03.csv --file ./report.csv

# Download
wrangler r2 object get scraped-data/reports/2026-03.csv --file ./downloaded.csv

# List objects
wrangler r2 object list scraped-data --prefix reports/

KV Commands

# Create namespace
wrangler kv namespace create CACHE

# Set value
wrangler kv key put --namespace-id=xxx "config" '{"maxRetries":3}'

# Get value
wrangler kv key get --namespace-id=xxx "config"

# Bulk upload
wrangler kv bulk put --namespace-id=xxx data.json

Environments

# wrangler.toml
[env.staging]
name = "my-worker-staging"
vars = { API_VERSION = "v2-beta" }

[env.production]
name = "my-worker-prod"
routes = [{ pattern = "api.example.com/*" }]

wrangler deploy --env staging
wrangler deploy --env production

Tail: Live Logs

# Stream live logs from production
wrangler tail

# Filter by status
wrangler tail --status error

# Filter by search
wrangler tail --search "scrape"

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Deploy scraping APIs globally? My Apify tools + Wrangler = edge-deployed data APIs.

Custom deployment solution? Email [e-mail]