packages/cli/skills/pikku-backblaze/SKILL.md
Use when setting up Backblaze B2 file storage in a Pikku app. Covers B2Content for file uploads, downloads, and signed URLs. TRIGGER when: code uses B2Content, user asks about Backblaze B2, or @pikku/backblaze. DO NOT TRIGGER when: user asks about S3 storage (use pikku-aws).
npx skillsauth add pikkujs/pikku pikku-backblazeInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Use this skill as an execution checklist, not reference material.
pikku-meta when available; otherwise run the relevant pikku meta ... --json command and inspect only the focused output you need..pikku, node_modules, vendored packages, or broad build artifacts.pikku-verify or pikku all when functions, wirings, schemas, or generated clients may have changed.@pikku/backblaze provides Backblaze B2-backed file storage implementing the ContentService interface.
yarn add @pikku/backblaze
B2Contentimport { B2Content } from '@pikku/backblaze'
const content = new B2Content(
config: B2ContentConfig,
logger: Logger
)
Methods:
signContentKey(key: string, dateLessThan: Date): Promise<string> — Sign a content keysignURL(url: string, dateLessThan: Date): Promise<string> — Sign a URLgetUploadURL(fileKey: string, contentType: string): Promise<{ uploadUrl, assetKey, uploadMethod?, uploadHeaders? }> — Get upload URLwriteFile(assetKey: string, stream: ReadableStream): Promise<boolean> — Write filecopyFile(assetKey: string, fromAbsolutePath: string): Promise<boolean> — Copy local file to B2readFile(assetKey: string): Promise<ReadableStream> — Read file as streamreadFileAsBuffer(assetKey: string): Promise<Buffer> — Read file as bufferdeleteFile(fileName: string): Promise<boolean> — Delete fileimport { B2Content } from '@pikku/backblaze'
const createSingletonServices = pikkuServices(async (config) => {
const logger = new PinoLogger()
const content = new B2Content(
{
applicationKeyId: config.b2KeyId,
applicationKey: config.b2AppKey,
bucketId: config.b2BucketId,
cdnUrl: config.b2CdnUrl,
},
logger
)
return { config, logger, content }
})
documentation
Deprecated — use pikku-middleware instead. Tag middleware (addTagMiddleware) is now documented as a section within the pikku-middleware skill, alongside global HTTP middleware, execution order, and the service-to-service bearer auth pattern.
testing
Use when adding authorization checks to Pikku functions or routes — pikkuPermission, pikkuAuth, per-function permissions, pattern-based permissions, or understanding OR/AND permission logic. TRIGGER when: user wants to restrict who can call a function, check resource ownership, add role-based access, or understand where permission checks belong. DO NOT TRIGGER when: user asks about middleware or request interception (use pikku-middleware), authentication strategies (use pikku-security), or session management.
testing
Use when adding any middleware to a Pikku app — global HTTP middleware, tag-scoped middleware (including service-to-service bearer auth), per-route middleware, session-setting middleware, or understanding middleware execution order and priority. TRIGGER when: user wants middleware on some or all routes, machine-to-machine auth, tag-scoped cross-cutting concerns, global interceptors, or middleware priority/order questions. DO NOT TRIGGER when: user asks about permissions/authorization checks (use pikku-permissions), auth strategies like authBearer/authCookie (use pikku-security), or deployment.
documentation
Standard cleanup to run right after a Pikku template is cloned or scaffolded into a new project. TRIGGER when: a Pikku template was just cloned/scaffolded (via `pikku create`, `git clone <template>`, or the user says "I cloned the kanban template / starter / template"), or the working tree still looks like an untouched template (template README, placeholder `@project/*` name in package.json). DO NOT TRIGGER when: working in an established project mid-feature, or editing the template repo itself.