camino-package-runtime/dist/index.js

import http from "node:http";
import { readFileSync } from "node:fs";
import { createInvocationRegistry } from "./invocations.js";
import { isObjectReference, referenceFromWire, referenceToWire, assertReferenceFree } from "./references.js";
export * from "./bindings.js";
export { relationshipMap, relationshipList, relationshipSet } from "./relationships.js";
import { AsyncLocalStorage } from "node:async_hooks";
import { createHmac, randomBytes, randomUUID, timingSafeEqual } from "node:crypto";
export { createMigrationContext, migrationObjectId, serveMigration } from "./migration.js";
import { create, equals } from "@bufbuild/protobuf";
import { Code, ConnectError, createClient } from "@connectrpc/connect";
import { connectNodeAdapter, createConnectTransport } from "@connectrpc/connect-node";
import { CaminoService, CrdtValueSchema, ListValueSchema, NullValueSchema, ObjectValueSchema, RefValueSchema, ValueSchema, } from "./camino/api_pb.js";
import { OrchestratorRuntime } from "./quixos/orch_pb.js";
import { DerivedDependencySchema, HandshakeResponseSchema, InvokeResponseSchema, PackageRuntime, WatchEventSchema, } from "./quixos/runtime_pb.js";
import { CapabilityRefSchema } from "./quixos/refs_pb.js";
const dependencyKey = (dependency) => `${dependency.kind}:${dependency.objectId}:${dependency.attachmentId}:${dependency.kind === "edge" ? dependency.projectionId : ""}`;
const dependencyScope = new AsyncLocalStorage();
const recordDependency = async (dependency) => {
    const scope = dependencyScope.getStore();
    if (!scope)
        return;
    const key = `${dependency.kind}:${dependency.objectId}:${dependency.attachmentId}:${dependency.kind === "edge" ? dependency.projectionId : ""}`;
    scope.dependencies.set(key, dependency);
    await scope.observe?.(dependency);
};
const bytesToBase64 = (value) => Buffer.from(value).toString("base64");
const base64ToBytes = (value) => Buffer.from(value, "base64");
const isRecord = (value) => Boolean(value) && typeof value === "object" && !Array.isArray(value);
const isWrappedValue = (value) => isRecord(value) && "$quixosValue" in value &&
    isRecord(value.$quixosValue) && value.$quixosValue.$typeName === "camino.Value";
export const objectRef = (reference) => { referenceToWire(reference); return reference; };
export const liveValue = (value) => ({ $quixosValue: value });
export const jsToProtoValue = (value) => {
    if (isObjectReference(value))
        return create(ValueSchema, { kind: { case: "refValue", value: create(RefValueSchema, { objectId: referenceToWire(value) }) } });
    if (isWrappedValue(value))
        return value.$quixosValue;
    if (value === null || value === undefined) {
        return create(ValueSchema, { kind: { case: "nullValue", value: create(NullValueSchema, {}) } });
    }
    if (typeof value === "boolean")
        return create(ValueSchema, { kind: { case: "boolValue", value } });
    if (typeof value === "number")
        return create(ValueSchema, { kind: { case: "numberValue", value } });
    if (typeof value === "bigint")
        return create(ValueSchema, { kind: { case: "integerValue", value: String(value) } });
    if (typeof value === "string")
        return create(ValueSchema, { kind: { case: "stringValue", value } });
    if (value instanceof Uint8Array)
        return create(ValueSchema, { kind: { case: "bytesValue", value } });
    if (Array.isArray(value)) {
        return create(ValueSchema, {
            kind: { case: "listValue", value: create(ListValueSchema, { values: value.map(jsToProtoValue) }) },
        });
    }
    if (isRecord(value) && "$quixosRef" in value)
        throw new Error("Raw ID wrappers are not object references");
    if (isRecord(value) && typeof value.$quixosCrdtType === "string" &&
        typeof value.$quixosCrdtPayload === "string") {
        return create(ValueSchema, {
            kind: { case: "crdtValue", value: create(CrdtValueSchema, {
                    type: value.$quixosCrdtType,
                    encoding: typeof value.$quixosCrdtEncoding === "string" ? value.$quixosCrdtEncoding : "base64",
                    payload: base64ToBytes(value.$quixosCrdtPayload),
                }) },
        });
    }
    if (!isRecord(value))
        throw new Error(`Unsupported runtime value ${typeof value}`);
    return create(ValueSchema, {
        kind: { case: "objectValue", value: create(ObjectValueSchema, {
                fields: Object.fromEntries(Object.entries(value).map(([key, entry]) => [key, jsToProtoValue(entry)])),
            }) },
    });
};
export const protoValueToJs = (value) => {
    switch (value?.kind.case) {
        case "nullValue":
        case undefined: return null;
        case "boolValue":
        case "numberValue":
        case "stringValue":
        case "integerValue": return value.kind.value;
        case "bytesValue": return bytesToBase64(value.kind.value);
        case "refValue": return referenceFromWire(value.kind.value.objectId);
        case "listValue": return value.kind.value.values.map(protoValueToJs);
        case "objectValue": return Object.fromEntries(Object.entries(value.kind.value.fields).map(([key, entry]) => [key, protoValueToJs(entry)]));
        case "crdtValue": return {
            $quixosCrdtType: value.kind.value.type,
            $quixosCrdtEncoding: value.kind.value.encoding,
            $quixosCrdtPayload: bytesToBase64(value.kind.value.payload),
        };
    }
};
export const protoFieldsToJs = (fields) => Object.fromEntries(Object.entries(fields).map(([key, value]) => [key, protoValueToJs(value)]));
export class RuntimeAuthorityError extends Error {
    retryable;
    constructor(message) { super(message); this.name = "RuntimeAuthorityError"; this.retryable = /WORKSPACE_FENCED|STALE_EPOCH/.test(message); }
}
const targetForEdge = (edge, projectionId) => edge.firstProjectionId === projectionId ? edge.secondObjectId : edge.firstObjectId;
export const createRuntimeContext = (camino, orch, request) => {
    const ports = new Map();
    for (const dependency of request.dependencies) {
        switch (dependency.binding.case) {
            case "stateSlotId": {
                const slotId = dependency.binding.value;
                const dependencyObjectId = dependency.objectId || request.objectId;
                const state = {
                    slotId,
                    async get() {
                        await recordDependency({ kind: "state", objectId: dependencyObjectId, attachmentId: slotId });
                        return protoValueToJs((await camino.readState({ objectId: dependencyObjectId, slotId })).value);
                    },
                    async live() {
                        await recordDependency({ kind: "state", objectId: dependencyObjectId, attachmentId: slotId });
                        const value = await camino.readState({ objectId: dependencyObjectId, slotId });
                        if (!value.value)
                            throw new Error(`State ${slotId} returned no value`);
                        return liveValue(value.value);
                    },
                    async set(value) {
                        assertReferenceFree(isWrappedValue(value) ? protoValueToJs(value.$quixosValue) : value);
                        await camino.writeState({ objectId: dependencyObjectId, slotId, value: jsToProtoValue(value) });
                    },
                };
                ports.set(dependency.portId, state);
                break;
            }
            case "edge": {
                const { edgeTypeId, projectionId } = dependency.binding.value;
                const dependencyObjectId = dependency.objectId || request.objectId;
                const collectionResult = (response) => ({ revision: response.revision,
                    entries: response.entries.map((entry) => ({ edgeId: entry.edgeId, target: referenceFromWire(entry.targetObjectId),
                        ...(entry.key ? { key: entry.key.kind.case === "integerValue" ? BigInt(entry.key.kind.value) : protoValueToJs(entry.key) } : {}) })) });
                const edge = {
                    edgeTypeId,
                    projectionId,
                    async collection() {
                        await recordDependency({ kind: "edge", objectId: dependencyObjectId, attachmentId: edgeTypeId, projectionId });
                        return collectionResult(await camino.readCollection({ objectId: dependencyObjectId, edgeTypeId, projectionId }));
                    },
                    async replace(entries, expectedRevision) {
                        return collectionResult(await camino.replaceCollection({ objectId: dependencyObjectId, edgeTypeId, projectionId, expectedRevision,
                            entries: entries.map((entry) => {
                                assertReferenceFree(entry.key);
                                return { edgeId: entry.edgeId ?? "", targetObjectId: referenceToWire(entry.target), key: entry.key === undefined ? undefined : jsToProtoValue(entry.key) };
                            }) }));
                    },
                    async resolve() {
                        await recordDependency({ kind: "edge", objectId: dependencyObjectId, attachmentId: edgeTypeId, projectionId });
                        const result = await camino.resolveEdge({ objectId: dependencyObjectId, edgeTypeId, projectionId });
                        return result.edges.map((entry) => referenceFromWire(targetForEdge(entry, projectionId)));
                    },
                    async connect(target) {
                        const targetObjectId = referenceToWire(target);
                        await camino.connectEdge({ objectId: dependencyObjectId, edgeTypeId, projectionId, targetObjectId });
                    },
                    async disconnect(target) {
                        const targetObjectId = referenceToWire(target);
                        const result = await camino.resolveEdge({ objectId: dependencyObjectId, edgeTypeId, projectionId });
                        for (const entry of result.edges) {
                            if (targetForEdge(entry, projectionId) === targetObjectId)
                                await camino.disconnectEdge({ edgeId: entry.id });
                        }
                    },
                };
                ports.set(dependency.portId, edge);
                break;
            }
            case "interfaceRevisionId": {
                const interfaceRevisionId = dependency.binding.value;
                const dependencyObjectId = dependency.objectId || request.objectId;
                const invoke = async (operationId, input) => {
                    const response = await orch.invokeCapability({
                        capability: create(CapabilityRefSchema, { interfaceRevisionId, operationId }),
                        objectId: dependencyObjectId,
                        input: Object.fromEntries(Object.entries(input).map(([key, value]) => [key, jsToProtoValue(value)])),
                    });
                    if (!response.ok)
                        throw new Error(response.error || `Capability ${operationId} failed`);
                    for (const dependency of response.dependencies) {
                        if (dependency.kind === "state") {
                            await recordDependency({
                                kind: "state",
                                objectId: dependency.objectId,
                                attachmentId: dependency.attachmentId,
                            });
                        }
                        else if (dependency.kind === "edge") {
                            await recordDependency({
                                kind: "edge",
                                objectId: dependency.objectId,
                                attachmentId: dependency.attachmentId,
                                projectionId: dependency.projectionId,
                            });
                        }
                    }
                    return response.result;
                };
                const capability = {
                    objectId: referenceFromWire(dependencyObjectId),
                    interfaceRevisionId,
                    async invoke(operationId, input = {}) {
                        return protoValueToJs(await invoke(operationId, input));
                    },
                    async live(operationId, input = {}) {
                        const value = await invoke(operationId, input);
                        if (!value)
                            throw new Error(`Capability ${operationId} returned no value`);
                        return liveValue(value);
                    },
                };
                ports.set(dependency.portId, capability);
                break;
            }
            case "constructorAtomId": {
                const atomId = dependency.binding.value;
                const constructor = {
                    atomId,
                    async construct(input = {}) {
                        const response = await orch.constructObject({
                            atomId,
                            input: Object.fromEntries(Object.entries(input).map(([key, value]) => [key, jsToProtoValue(value)])),
                        });
                        if (!response.object)
                            throw new Error(`Constructor ${atomId} returned no object`);
                        return referenceFromWire(response.object.id);
                    },
                };
                ports.set(dependency.portId, constructor);
            }
        }
    }
    const requirePort = (portId, kind) => {
        const port = ports.get(portId);
        if (!port || !(kind in port))
            throw new Error(`Missing ${kind} dependency port ${portId}`);
        return port;
    };
    return {
        objectId: referenceFromWire(request.objectId),
        input: protoFieldsToJs(request.input),
        inputProto: request.input,
        ports,
        state: (portId) => requirePort(portId, "slotId"),
        edge: (portId) => requirePort(portId, "edgeTypeId"),
        interface: (portId) => requirePort(portId, "interfaceRevisionId"),
        constructor: (portId) => requirePort(portId, "atomId"),
    };
};
export const derived = (get) => ({ kind: "derived", get });
const isDerived = (handler) => typeof handler === "object" && handler.kind === "derived";
const evaluate = async (handler, context, observe) => {
    const dependencies = new Map();
    const result = await dependencyScope.run({ dependencies, observe }, () => isDerived(handler) ? handler.get(context) : handler(context));
    return { value: jsToProtoValue(result), dependencies: [...dependencies.values()] };
};
const protoDependencies = (dependencies) => dependencies.map((entry) => create(DerivedDependencySchema, {
    kind: entry.kind,
    objectId: entry.objectId,
    attachmentId: entry.attachmentId,
    projectionId: entry.kind === "edge" ? entry.projectionId : "",
}));
export const createPackageRuntimeRoutes = (config) => {
    const invocations = createInvocationRegistry();
    const headers = {};
    const processToken = process.env.CAMINO_RUNTIME_AUTH_TOKEN ?? (process.env.CAMINO_RUNTIME_AUTH_TOKEN_FILE
        ? readFileSync(process.env.CAMINO_RUNTIME_AUTH_TOKEN_FILE, "utf8").trim() : "");
    if (processToken) {
        headers["x-camino-runtime-token"] = processToken;
    }
    else if (process.env.CAMINO_RUNTIME_AUTH_REQUIRED === "1") {
        throw new Error("CAMINO_RUNTIME_AUTH_TOKEN is required");
    }
    const camino = createClient(CaminoService, createConnectTransport({
        baseUrl: config.caminoUrl ?? process.env.CAMINO_URL ?? "http://127.0.0.1:7310",
        httpVersion: "1.1",
        interceptors: headers["x-camino-runtime-token"] ? [
            (next) => async (request) => {
                request.header.set("x-camino-runtime-token", headers["x-camino-runtime-token"]);
                return await next(request);
            },
        ] : [],
    }));
    const orch = createClient(OrchestratorRuntime, createConnectTransport({
        baseUrl: config.orchUrl ?? process.env.QUIXOS_ORCH_URL ?? "http://127.0.0.1:7311",
        httpVersion: "1.1",
    }));
    const authenticateInstance = (header) => {
        if (!process.env.QUIXOS_RUNTIME_INSTANCE_ID)
            return; // standalone development ABI
        const supplied = Buffer.from(header.get("x-quixos-instance-token") ?? "");
        const expected = Buffer.from(processToken);
        if (!expected.length || supplied.length !== expected.length || !timingSafeEqual(supplied, expected)) {
            throw new ConnectError("Invalid runtime instance credential", Code.Unauthenticated);
        }
    };
    const clientsFor = (request) => {
        const context = request.context;
        if (process.env.QUIXOS_RUNTIME_INSTANCE_ID && (!context?.grant || context.instanceId !== process.env.QUIXOS_RUNTIME_INSTANCE_ID || !context.workspaceEpoch)) {
            throw new ConnectError("Managed invocation requires an exact instance and epoch grant", Code.Unauthenticated);
        }
        if (!context?.grant)
            return { camino, orch };
        const transport = (url) => createConnectTransport({ baseUrl: url, httpVersion: "1.1", interceptors: [(next) => async (call) => {
                    call.header.set("x-quixos-invocation-grant", context.grant);
                    call.header.set("x-camino-runtime-token", processToken);
                    return next(call);
                }] });
        return {
            camino: createClient(CaminoService, transport(config.caminoUrl ?? process.env.CAMINO_URL ?? "http://127.0.0.1:7310")),
            orch: createClient(OrchestratorRuntime, transport(config.orchUrl ?? process.env.QUIXOS_ORCH_URL ?? "http://127.0.0.1:7311")),
        };
    };
    const runtimeControl = async (operation, input) => {
        const response = await fetch(`${config.caminoUrl ?? process.env.CAMINO_URL ?? "http://127.0.0.1:7310"}/__runtime/${operation}`, {
            method: "POST", headers: { "content-type": "application/json", "x-camino-runtime-token": processToken }, body: JSON.stringify(input), signal: AbortSignal.timeout(10_000),
        });
        const value = await response.json();
        if (!response.ok)
            throw new RuntimeAuthorityError(value.error ?? "Runtime authority request failed");
        return value;
    };
    const attachSessions = (runtimeContext, request) => {
        if (!request.context?.grant || !request.context.ownerConformanceId)
            return;
        runtimeContext.openSession = async () => {
            const ownerId = request.context.ownerConformanceId;
            const registration = { grant: request.context.grant, objectId: request.objectId, ownerId,
                sessionId: `session:${randomBytes(16).toString("hex")}`, token: randomBytes(32).toString("base64url") };
            const register = () => runtimeControl("register-session", registration);
            const registered = await register().catch((error) => {
                // Retry a transport/lost-response failure with exactly the same identity.
                // Admission/authority errors are definitive and must not be retried here.
                if (error instanceof RuntimeAuthorityError)
                    throw error;
                return register();
            });
            let closed = false;
            return {
                id: registered.sessionId,
                async run(work) {
                    if (closed)
                        throw new RuntimeAuthorityError("SESSION_CLOSED");
                    // Acquisition happens before user code. A fence failure can be retried
                    // by the caller without replaying a side-effecting callback.
                    const grant = await runtimeControl("acquire-session", registered);
                    const execution = invocations.begin(grant.invocationId);
                    const sessionRequest = { ...request, context: { grant: grant.grant, instanceId: grant.instanceId, workspaceEpoch: grant.epoch } };
                    const clients = clientsFor(sessionRequest);
                    const context = createRuntimeContext(clients.camino, clients.orch, sessionRequest);
                    context.signal = execution.signal;
                    try {
                        return await work(context);
                    }
                    finally {
                        execution.finish();
                        await runtimeControl("complete-invocation", { invocationId: grant.invocationId }).catch((error) => console.error("Session completion will be reconciled by the host", error));
                    }
                },
                async close() { await runtimeControl("close-session", registered); closed = true; },
            };
        };
    };
    return (router) => router.service(PackageRuntime, {
        handshake: (request) => create(HandshakeResponseSchema, {
            packageRevisionId: config.packageRevisionId,
            runtimeProtocolVersion: "quixos-capabilities-v1",
            exportIds: Object.keys(config.exports),
            capabilities: ["invocation-completion-v1", "instance-authentication-v1", "epoch-grants-v1"],
            instanceId: process.env.QUIXOS_RUNTIME_INSTANCE_ID ?? "",
            authenticationProof: request.nonce && processToken ? createHmac("sha256", processToken)
                .update(JSON.stringify([request.nonce, process.env.QUIXOS_RUNTIME_INSTANCE_ID ?? "", config.packageRevisionId]))
                .digest("hex") : "",
        }),
        getInvocationStatus: (request, context) => {
            authenticateInstance(context.requestHeader);
            return invocations.status(request.invocationId);
        },
        cancelInvocation: (request, context) => {
            authenticateInstance(context.requestHeader);
            return invocations.cancel(request.invocationId);
        },
        invoke: async (request, context) => {
            authenticateInstance(context.requestHeader);
            const { camino, orch } = clientsFor(request);
            const exportId = request.export?.exportId;
            const handler = exportId ? config.exports[exportId] : undefined;
            if (!handler)
                throw new ConnectError(`Unknown export ${exportId ?? ""}`, Code.NotFound);
            const execution = invocations.begin(request.invocationId || (process.env.QUIXOS_RUNTIME_INSTANCE_ID ? "" : randomUUID()));
            try {
                const runtimeContext = createRuntimeContext(camino, orch, request);
                attachSessions(runtimeContext, request);
                runtimeContext.signal = AbortSignal.any([context.signal, execution.signal]);
                const result = await evaluate(handler, runtimeContext);
                execution.finish();
                return create(InvokeResponseSchema, {
                    ok: true,
                    result: result.value,
                    dependencies: protoDependencies(result.dependencies),
                });
            }
            catch (error) {
                execution.finish(true);
                return create(InvokeResponseSchema, {
                    ok: false,
                    error: error instanceof Error ? error.message : String(error),
                });
            }
        },
        watch: async function* (request, context) {
            authenticateInstance(context.requestHeader);
            const { camino, orch } = clientsFor(request);
            const exportId = request.export?.exportId;
            const handler = exportId ? config.exports[exportId] : undefined;
            if (!handler || !isDerived(handler)) {
                throw new ConnectError(`Export ${exportId ?? ""} is not derived`, Code.FailedPrecondition);
            }
            const execution = invocations.begin(request.invocationId || (process.env.QUIXOS_RUNTIME_INSTANCE_ID ? "" : randomUUID()));
            const signal = AbortSignal.any([context.signal, execution.signal]);
            try {
                const watchId = `watch:${randomUUID()}`;
                const runtimeContext = createRuntimeContext(camino, orch, request);
                attachSessions(runtimeContext, request);
                runtimeContext.signal = signal;
                const subscriptions = new Map();
                const establishing = new Map();
                let subscriptionEpoch = 0;
                const ensureSubscription = async (dependency) => {
                    const key = dependencyKey(dependency);
                    if (subscriptions.has(key))
                        return;
                    const pending = establishing.get(key);
                    if (pending)
                        return await pending;
                    const establish = (async () => {
                        const controller = new AbortController();
                        const stream = camino.watchObject({ objectId: dependency.objectId, includeSnapshot: true, attachmentIds: request.context?.grant ? [dependency.attachmentId] : [] }, { signal: controller.signal })[Symbol.asyncIterator]();
                        try {
                            // Camino subscribes before producing the snapshot, so once this
                            // resolves the following state/edge read cannot race the stream.
                            const snapshot = await stream.next();
                            if (snapshot.done)
                                throw new Error(`Dependency stream ${key} ended during setup`);
                            const waitNext = () => stream.next().then((result) => ({ key, done: Boolean(result.done) }), (error) => ({ key, done: true, error }));
                            const subscription = {
                                dependency,
                                controller,
                                waitNext,
                                next: Promise.resolve({ key, done: false }),
                            };
                            subscription.next = waitNext();
                            subscriptions.set(key, subscription);
                            subscriptionEpoch += 1;
                        }
                        catch (error) {
                            controller.abort();
                            throw error;
                        }
                    })();
                    establishing.set(key, establish);
                    try {
                        await establish;
                    }
                    finally {
                        establishing.delete(key);
                    }
                };
                const abortAll = () => {
                    for (const subscription of subscriptions.values()) {
                        subscription.controller.abort();
                    }
                };
                signal.addEventListener("abort", abortAll, { once: true });
                const evaluateWithStableSubscriptions = async () => {
                    // A direct state/edge port records its dependency before reading it,
                    // but a nested interface invocation can only report its transitive
                    // dependencies after that invocation returns. Once a new dependency
                    // stream is established, evaluate again so every read contributing to
                    // the emitted value happened after its stream became live.
                    for (let pass = 0; pass < 32; pass += 1) {
                        const before = subscriptionEpoch;
                        const result = await evaluate(handler, runtimeContext, ensureSubscription);
                        if (subscriptionEpoch === before)
                            return result;
                    }
                    throw new Error("Derived dependency discovery did not stabilize after 32 passes");
                };
                try {
                    let current = await evaluateWithStableSubscriptions();
                    yield create(WatchEventSchema, {
                        watchId,
                        value: current.value,
                        dependencies: protoDependencies(current.dependencies),
                        initial: true,
                    });
                    const abort = new Promise((resolve) => {
                        if (signal.aborted)
                            resolve("abort");
                        else
                            signal.addEventListener("abort", () => resolve("abort"), { once: true });
                    });
                    while (!signal.aborted) {
                        if (subscriptions.size === 0) {
                            await abort;
                            break;
                        }
                        const outcome = await Promise.race([
                            ...[...subscriptions.values()].map((entry) => entry.next),
                            abort,
                        ]);
                        if (outcome === "abort")
                            break;
                        const subscription = subscriptions.get(outcome.key);
                        if (!subscription)
                            continue;
                        if (outcome.error)
                            throw outcome.error;
                        if (outcome.done)
                            throw new Error(`Dependency stream ${outcome.key} ended unexpectedly`);
                        subscription.next = subscription.waitNext();
                        const updated = await evaluateWithStableSubscriptions();
                        const active = new Set(updated.dependencies.map(dependencyKey));
                        for (const [key, entry] of subscriptions) {
                            if (!active.has(key)) {
                                entry.controller.abort();
                                subscriptions.delete(key);
                            }
                        }
                        if (!equals(ValueSchema, current.value, updated.value)) {
                            yield create(WatchEventSchema, {
                                watchId,
                                value: updated.value,
                                dependencies: protoDependencies(updated.dependencies),
                            });
                        }
                        current = updated;
                    }
                }
                finally {
                    signal.removeEventListener("abort", abortAll);
                    abortAll();
                }
            }
            finally {
                execution.finish();
            }
        },
    });
};
export const servePackageRuntime = (config) => {
    const host = process.env.QUIXOS_RUNTIME_HOST ?? "127.0.0.1";
    const port = Number(process.env.QUIXOS_RUNTIME_PORT ?? "0");
    const handler = connectNodeAdapter({ routes: createPackageRuntimeRoutes(config) });
    const server = http.createServer((request, response) => void handler(request, response));
    server.listen(port, host, () => console.log(`${config.packageRevisionId} listening on ${host}:${port}`));
    const shutdown = () => {
        server.close(() => process.exit(0));
        server.closeAllConnections();
    };
    process.on("SIGTERM", shutdown);
    process.on("SIGINT", shutdown);
    return server;
};