Google Cloud Platform

Google Cloud services for scalable applications and data analytics.

When to Use

Quick Start

// Cloud Function import { HttpFunction } from "@google-cloud/functions-framework";

export const helloWorld: HttpFunction = (req, res) => { const name = req.query.name || "World"; res.send(Hello, ${name}!); };

Core Concepts

Cloud Storage

import { Storage } from "@google-cloud/storage";

const storage = new Storage(); const bucket = storage.bucket("my-bucket");

// Upload await bucket.upload("local-file.pdf", { destination: "files/document.pdf", metadata: { contentType: "application/pdf" }, });

// Download await bucket.file("files/document.pdf").download({ destination: "downloaded.pdf", });

// Signed URL const [url] = await bucket.file("files/document.pdf").getSignedUrl({ action: "read", expires: Date.now() + 3600 * 1000, });

Firestore

import { Firestore } from "@google-cloud/firestore";

const db = new Firestore();

// Write await db.collection("users").doc("123").set({ name: "John", email: "john@example.com", });

// Query const snapshot = await db .collection("users") .where("status", "==", "active") .orderBy("createdAt", "desc") .limit(10) .get();

snapshot.forEach((doc) => console.log(doc.data()));

Common Patterns

Cloud Run Deployment

cloudbuild.yaml

steps:

name: "gcr.io/cloud-builders/docker" args: ["build", "-t", "gcr.io/$PROJECT_ID/myapp", "."]
name: "gcr.io/cloud-builders/docker" args: ["push", "gcr.io/$PROJECT_ID/myapp"]
name: "gcr.io/cloud-builders/gcloud" args:
- "run"
- "deploy"
- "myapp"
- "--image=gcr.io/$PROJECT_ID/myapp"
- "--region=us-central1"
- "--platform=managed"

Best Practices

Do:

Don't:

Troubleshooting

Issue Cause Solution

Permission denied IAM issue Check service account roles

Cold start slow First request Use min instances

Quota exceeded Rate limiting Request quota increase

References

gcp