Files
hyperframes/packages/cli/src/commands/lambda.ts
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TypeScript

import { failCommand } from "../utils/commandResult.js";
/**
* `hyperframes lambda` — top-level dispatcher for AWS Lambda subcommands.
*
* Each subverb lives in `./lambda/<name>.ts` and exports a single
* `runXxx(args)` async function. The subcommand surface is intentionally
* thin glue: argument parsing + help text here; the actual work
* (`renderToLambda` / `getRenderProgress` / `deploySite` / SAM driver)
* lives in `@hyperframes/aws-lambda/sdk`.
*/
import { defineCommand } from "citty";
import type { DistributedFormat } from "@hyperframes/aws-lambda/sdk";
import { type CanvasResolution } from "@hyperframes/core";
import { parseOutputResolutionFlag } from "../utils/parseOutputResolution.js";
import type { Example } from "./_examples.js";
import { c } from "../ui/colors.js";
import { readAllowedCompositionFpsFromDir } from "../utils/compositionFps.js";
export const examples: Example[] = [
["Deploy the Lambda render stack to AWS", "hyperframes lambda deploy"],
[
"Render a composition on the deployed stack",
"hyperframes lambda render ./my-project --width 1920 --height 1080",
],
[
"Render and stream progress until done",
"hyperframes lambda render ./my-project --width 1920 --height 1080 --wait",
],
[
"Supersample a 1080p composition to 4K via Chrome deviceScaleFactor",
"hyperframes lambda render ./my-project --width 1920 --height 1080 --output-resolution 4k --wait",
],
[
"Render with composition variables (personalised template)",
'hyperframes lambda render ./my-template --site-id abc1234deadbeef0 --width 1920 --height 1080 --variables \'{"title":"Hello Alice","accent":"#ff0000"}\'',
],
[
"Render with variables from a JSON file",
"hyperframes lambda render ./my-template --site-id abc1234deadbeef0 --width 1920 --height 1080 --variables-file ./alice.json",
],
[
"Batch-render N personalised videos from a JSONL file (deploys the site once)",
"hyperframes lambda render-batch ./my-template --batch ./users.jsonl --width 1920 --height 1080 --max-concurrent 10",
],
["Check progress for a started render", "hyperframes lambda progress hf-render-abcd1234"],
[
"Pre-upload a project so multiple renders share the upload",
"hyperframes lambda sites create ./my-project",
],
["Tear the stack down", "hyperframes lambda destroy"],
["Print the IAM policy the CLI needs", "hyperframes lambda policies user"],
[
"Validate a checked-in IAM policy still covers the CLI",
"hyperframes lambda policies validate ./infra/iam/hyperframes.json",
],
];
const HELP = `
${c.bold("hyperframes lambda")} ${c.dim("<subcommand> [args]")}
Deploy + drive distributed video renders on AWS Lambda.
${c.bold("SUBCOMMANDS:")}
${c.accent("deploy")} ${c.dim("Provision the Lambda + Step Functions + S3 stack via SAM")}
${c.accent("sites create")} ${c.dim("Tar + upload a project to S3 (reusable across renders)")}
${c.accent("render")} ${c.dim("Start a distributed render (returns a renderId)")}
${c.accent("render-batch")} ${c.dim("Fan out N personalised renders from a JSONL batch file")}
${c.accent("progress")} ${c.dim("Print progress + cost for an in-flight or finished render")}
${c.accent("destroy")} ${c.dim("Tear the stack down (S3 bucket is retained)")}
${c.accent("policies")} ${c.dim("Print or validate the IAM permissions the CLI needs")}
${c.bold("FIRST RUN:")}
${c.accent("hyperframes lambda deploy")}
${c.accent("hyperframes lambda render ./my-project --width 1920 --height 1080 --wait")}
${c.bold("REQUIREMENTS:")}
• AWS CLI configured (env vars, ~/.aws/credentials, or SSO)
• AWS SAM CLI installed (https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html)
• bun on PATH (used to build the handler ZIP)
`;
export default defineCommand({
meta: { name: "lambda", description: "Deploy and drive renders on AWS Lambda" },
args: {
subcommand: {
type: "positional",
required: false,
description: "deploy | sites | render | progress | destroy | policies",
},
target: {
type: "positional",
required: false,
description: "Subcommand-specific positional (project dir, render id, policies verb, etc.)",
},
extra: {
type: "positional",
required: false,
description:
"Extra positional (e.g. `sites create <projectDir>` or `policies validate <policy.json>`)",
},
// Stack identity
"stack-name": {
type: "string",
description: "CloudFormation stack name (default: hyperframes-default)",
},
region: { type: "string", description: "AWS region (default: AWS_REGION env or us-east-1)" },
profile: { type: "string", description: "AWS profile name (default: AWS_PROFILE env)" },
// deploy
concurrency: { type: "string", description: "Lambda reserved concurrency (default: 8)" },
"chrome-source": {
type: "string",
description: "sparticuz | chrome-headless-shell (default: sparticuz)",
},
memory: { type: "string", description: "Lambda memory MB (default: 10240)" },
"skip-build": { type: "boolean", description: "Reuse existing handler.zip (deploy)" },
// sites / render
"site-id": { type: "string", description: "Explicit site id (overrides content hash)" },
width: { type: "string", description: "Render width in pixels" },
height: { type: "string", description: "Render height in pixels" },
"output-resolution": {
type: "string",
description:
"Output resolution preset that engages Chrome deviceScaleFactor supersampling. Accepts canonical names (landscape, landscape-4k, portrait, portrait-4k, square, square-4k) and aliases (1080p, 4k, uhd, hd). When set, the composition's authored data-width/data-height is supersampled to the target preset without changing the layout.",
},
fps: { type: "string", description: "Render fps (24 | 30 | 60)" },
format: { type: "string", description: "mp4 | mov | png-sequence | webm (default: mp4)" },
codec: { type: "string", description: "h264 | h265 (mp4 only)" },
quality: { type: "string", description: "draft | standard | high" },
"chunk-size": { type: "string", description: "Frames per chunk (default: 240)" },
"max-parallel-chunks": { type: "string", description: "Max concurrent chunks (default: 16)" },
"target-chunk-frames": {
type: "string",
description:
"Cap per-chunk frames; auto-adds chunks (up to --max-parallel-chunks) to keep each under this. Ignored if --chunk-size is set.",
},
"execution-name": {
type: "string",
description: "Step Functions execution name (default: hf-render-<uuid>)",
},
"output-key": {
type: "string",
description: "Final output S3 key (default: renders/<exec>/output.<ext>)",
},
// Variables — mirrors the local `hyperframes render` UX. Inline JSON or
// file path, plus --strict-variables for type-checked validation against
// the composition's `data-composition-variables` declaration.
variables: {
type: "string",
description:
'JSON object of variable values for the composition. Example: --variables \'{"title":"Hello"}\'. Values flow into window.__hfVariables on the Lambda chunk workers.',
},
"variables-file": {
type: "string",
description:
"Path to a JSON file with variable values (alternative to --variables). The file must contain a single JSON object.",
},
"strict-variables": {
type: "boolean",
description:
"Fail the render command if any --variables key is undeclared or has a wrong type vs the composition's data-composition-variables. Without this flag, mismatches are warnings.",
default: false,
},
// render-batch
batch: {
type: "string",
description:
'Path to a JSONL batch file for `render-batch`. Each line: {"outputKey":"...","variables":{...}}',
},
"max-concurrent": {
type: "string",
description:
"Max in-flight Step Functions executions for `render-batch` (default: 50). Distinct from --max-parallel-chunks (which caps chunks per render).",
},
"dry-run": {
type: "boolean",
description:
"For `render-batch`: parse the batch file and print the manifest without invoking AWS. Every entry's status becomes `would-invoke`.",
default: false,
},
wait: { type: "boolean", description: "Block until the render finishes" },
"wait-interval-ms": {
type: "string",
description: "Poll cadence in ms when --wait is set (default: 5000)",
},
// shared
json: { type: "boolean", description: "Emit machine-readable JSON" },
},
async run({ args }) {
const subcommand = args.subcommand;
if (!subcommand) {
console.log(HELP);
return;
}
const stackName =
(args["stack-name"] as string | undefined) ??
// Lazy-imported so the dispatcher doesn't pull state.ts (and its
// node:fs deps) on every CLI invocation — only on lambda runs.
(await import("./lambda/state.js")).DEFAULT_STACK_NAME;
// Apply --profile globally before any AWS-SDK / `aws` / `sam` call runs.
// The AWS SDK + the SAM CLI both read AWS_PROFILE from the environment,
// so setting it here threads the value through render / progress / sites
// (which don't take an explicit awsProfile arg) without each subverb
// having to know about it. Region gets the same treatment so the SDK
// clients constructed inside the SDK pick it up too.
const profileFlag = args.profile as string | undefined;
if (profileFlag) process.env.AWS_PROFILE = profileFlag;
const regionFlag = args.region as string | undefined;
if (regionFlag) process.env.AWS_REGION = regionFlag;
// The lambda subverbs dynamic-import `@hyperframes/aws-lambda` at call
// time. We keep aws-lambda as a workspace devDependency (not a runtime
// dep) so the published CLI install stays small for users who don't
// deploy to Lambda. Subverbs other than `policies` need aws-lambda;
// catch the missing-module error here and turn it into a friendly hint.
const verbsNeedingSDK = new Set([
"deploy",
"sites",
"render",
"render-batch",
"progress",
"destroy",
]);
if (verbsNeedingSDK.has(subcommand)) {
try {
await import("@hyperframes/aws-lambda/sdk");
} catch (err) {
if ((err as NodeJS.ErrnoException).code === "ERR_MODULE_NOT_FOUND") {
console.error(
`${c.error("@hyperframes/aws-lambda is not installed.")} The ${c.accent(`hyperframes lambda ${subcommand}`)} command needs it at runtime.\n` +
`Install it alongside the CLI:\n` +
` ${c.accent("npm install -g @hyperframes/aws-lambda")}\n` +
`Or, for an opt-in dev setup:\n` +
` ${c.accent("npm install @hyperframes/aws-lambda")}`,
);
failCommand();
}
throw err;
}
}
switch (subcommand) {
case "deploy": {
const { runDeploy } = await import("./lambda/deploy.js");
await runDeploy({
stackName,
region: args.region as string | undefined,
awsProfile: args.profile as string | undefined,
reservedConcurrency: parsePositiveInt(args.concurrency, "--concurrency"),
chromeSource: parseChromeSource(args["chrome-source"]),
lambdaMemoryMb: parsePositiveInt(args.memory, "--memory"),
skipBuild: Boolean(args["skip-build"]),
});
return;
}
case "sites": {
if (args.target !== "create") {
console.error(
`[lambda sites] unknown verb "${String(args.target)}". Only "create" is supported.`,
);
failCommand();
}
const projectDir = args.extra as string | undefined;
if (!projectDir) {
console.error(
"[lambda sites create] usage: hyperframes lambda sites create <projectDir>",
);
failCommand();
}
const { runSitesCreate } = await import("./lambda/sites.js");
await runSitesCreate({
projectDir,
stackName,
siteId: args["site-id"] as string | undefined,
json: Boolean(args.json),
});
return;
}
case "render": {
const projectDir = args.target as string | undefined;
if (!projectDir) {
console.error(
"[lambda render] usage: hyperframes lambda render <projectDir> --width <px> --height <px>",
);
failCommand();
}
const width = parsePositiveInt(args.width, "--width");
const height = parsePositiveInt(args.height, "--height");
if (width === undefined || height === undefined) {
console.error("[lambda render] --width and --height are required.");
failCommand();
}
const fpsRaw =
parseIntFlag(args.fps) ??
readAllowedCompositionFpsFromDir(projectDir, [24, 30, 60]) ??
30;
if (fpsRaw !== 24 && fpsRaw !== 30 && fpsRaw !== 60) {
console.error(`[lambda render] --fps must be 24, 30, or 60; got ${fpsRaw}.`);
failCommand();
}
const { runRender } = await import("./lambda/render.js");
const renderResolution = parseOutputResolution(args["output-resolution"]);
await runRender({
projectDir,
stackName,
siteId: args["site-id"] as string | undefined,
fps: fpsRaw,
width,
height,
outputResolution: renderResolution.outputResolution,
outputResolutionAspectAgnostic: renderResolution.outputResolutionAspectAgnostic,
format: parseFormat(args.format),
codec: parseCodec(args.codec),
quality: parseQuality(args.quality),
chunkSize: parsePositiveInt(args["chunk-size"], "--chunk-size"),
maxParallelChunks: parsePositiveInt(args["max-parallel-chunks"], "--max-parallel-chunks"),
targetChunkFrames: parsePositiveInt(args["target-chunk-frames"], "--target-chunk-frames"),
executionName: args["execution-name"] as string | undefined,
outputKey: args["output-key"] as string | undefined,
variables: args.variables as string | undefined,
variablesFile: args["variables-file"] as string | undefined,
strictVariables: Boolean(args["strict-variables"]),
json: Boolean(args.json),
wait: Boolean(args.wait),
waitIntervalMs: parsePositiveInt(args["wait-interval-ms"], "--wait-interval-ms") ?? 5000,
});
return;
}
case "render-batch": {
const projectDir = args.target as string | undefined;
if (!projectDir) {
console.error(
"[lambda render-batch] usage: hyperframes lambda render-batch <projectDir> --batch <path.jsonl> --width <px> --height <px>",
);
failCommand();
}
const batch = args.batch as string | undefined;
if (!batch) {
console.error(
"[lambda render-batch] --batch <path.jsonl> is required. Each line is a JSON object with at least { outputKey: '...' }.",
);
failCommand();
}
const width = parsePositiveInt(args.width, "--width");
const height = parsePositiveInt(args.height, "--height");
if (width === undefined || height === undefined) {
console.error("[lambda render-batch] --width and --height are required.");
failCommand();
}
const fpsRaw =
parseIntFlag(args.fps) ??
readAllowedCompositionFpsFromDir(projectDir, [24, 30, 60]) ??
30;
if (fpsRaw !== 24 && fpsRaw !== 30 && fpsRaw !== 60) {
console.error(`[lambda render-batch] --fps must be 24, 30, or 60; got ${fpsRaw}.`);
failCommand();
}
const { runRenderBatch } = await import("./lambda/render-batch.js");
const batchResolution = parseOutputResolution(args["output-resolution"]);
await runRenderBatch({
projectDir,
stackName,
batch,
siteId: args["site-id"] as string | undefined,
fps: fpsRaw,
width,
height,
outputResolution: batchResolution.outputResolution,
outputResolutionAspectAgnostic: batchResolution.outputResolutionAspectAgnostic,
format: parseFormat(args.format),
codec: parseCodec(args.codec),
quality: parseQuality(args.quality),
chunkSize: parsePositiveInt(args["chunk-size"], "--chunk-size"),
maxParallelChunks: parsePositiveInt(args["max-parallel-chunks"], "--max-parallel-chunks"),
targetChunkFrames: parsePositiveInt(args["target-chunk-frames"], "--target-chunk-frames"),
maxConcurrent: parsePositiveInt(args["max-concurrent"], "--max-concurrent"),
strictVariables: Boolean(args["strict-variables"]),
dryRun: Boolean(args["dry-run"]),
json: Boolean(args.json),
});
return;
}
case "progress": {
const target = args.target as string | undefined;
if (!target) {
console.error(
"[lambda progress] usage: hyperframes lambda progress <renderId | executionArn>",
);
failCommand();
}
const { runProgress } = await import("./lambda/progress.js");
await runProgress({ target, stackName, json: Boolean(args.json) });
return;
}
case "destroy": {
const { runDestroy } = await import("./lambda/destroy.js");
await runDestroy({ stackName, awsProfile: args.profile as string | undefined });
return;
}
case "policies": {
const verb = args.target as string | undefined;
if (verb !== "role" && verb !== "user" && verb !== "validate") {
console.error(
`[lambda policies] usage: hyperframes lambda policies <role|user|validate> [args]`,
);
failCommand();
}
const { runPolicies } = await import("./lambda/policies.js");
await runPolicies({
verb,
inputPath: args.extra as string | undefined,
json: Boolean(args.json),
});
return;
}
default:
console.error(`${c.error("Unknown subcommand:")} ${subcommand}\n${HELP}`);
failCommand();
}
},
});
function parseIntFlag(raw: unknown): number | undefined {
if (raw === undefined || raw === null || raw === "") return undefined;
const n = Number.parseInt(String(raw), 10);
return Number.isFinite(n) ? n : undefined;
}
/**
* Parse a flag that must be a positive integer (>= 1) when supplied.
* Negative values or non-integers fail loudly instead of flowing into
* the SDK and producing opaque AWS validation errors mid-render.
*/
function parsePositiveInt(raw: unknown, flagName: string): number | undefined {
const n = parseIntFlag(raw);
if (n === undefined) return undefined;
if (!Number.isInteger(n) || n < 1) {
throw new Error(`[lambda] ${flagName} must be a positive integer; got ${n}`);
}
return n;
}
/**
* Parse a string-union flag against a closed set of allowed values.
* Returns `defaultValue` (which may be `undefined`) when the input is
* empty; throws with a flag-specific message when the value is set
* but unrecognised.
*/
function parseEnum<T extends string>(
raw: unknown,
allowed: readonly T[],
errorPrefix: string,
defaultValue: T | undefined,
): T | undefined {
if (raw === undefined || raw === null || raw === "") return defaultValue;
const s = String(raw);
if ((allowed as readonly string[]).includes(s)) return s as T;
throw new Error(`${errorPrefix} must be ${allowed.join("|")}; got ${s}`);
}
const FORMATS = [
"mp4",
"mov",
"png-sequence",
"webm",
] as const satisfies readonly DistributedFormat[];
const CODECS = ["h264", "h265"] as const;
const QUALITIES = ["draft", "standard", "high"] as const;
const CHROME_SOURCES = ["sparticuz", "chrome-headless-shell"] as const;
const parseFormat = (raw: unknown): (typeof FORMATS)[number] =>
parseEnum(raw, FORMATS, "[lambda render] --format", "mp4")!;
const parseCodec = (raw: unknown): (typeof CODECS)[number] | undefined =>
parseEnum(raw, CODECS, "[lambda render] --codec", undefined);
const parseQuality = (raw: unknown): (typeof QUALITIES)[number] | undefined =>
parseEnum(raw, QUALITIES, "[lambda render] --quality", undefined);
const parseChromeSource = (raw: unknown): (typeof CHROME_SOURCES)[number] =>
parseEnum(raw, CHROME_SOURCES, "[lambda deploy] --chrome-source", "sparticuz")!;
/**
* Lambda flavor of the shared {@link parseOutputResolutionFlag} — same wire
* contract as the Cloud Run counterpart. Runtime work lives in the shared
* util; wire-config-level coverage lives at `./lambda/render.test.ts` /
* `./lambda/render-batch.test.ts`, and full input-space coverage at
* `../utils/parseOutputResolution.test.ts`.
*/
function parseOutputResolution(raw: unknown): {
outputResolution: CanvasResolution | undefined;
outputResolutionAspectAgnostic: boolean;
} {
return parseOutputResolutionFlag(raw, {
surfaceLabel: "[lambda render]",
// The Lambda `--output-resolution` help text advertises the full alias
// list (tier-only + orientation-suffixed) — keep the error message
// faithful to that surface's docs.
aliasHint:
"1080p, 4k, uhd, hd, 1080p-portrait, portrait-1080p, 4k-portrait, 1080p-square, square-1080p, 4k-square",
});
}