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import * as restate from "@restatedev/restate-sdk";
import * as restateClient from "@restatedev/restate-sdk-clients";
import type { PluginProvider } from "@karakeep/shared/plugins";
import type {
EnqueueOptions,
Queue,
QueueClient,
QueueOptions,
Runner,
RunnerFuncs,
RunnerOptions,
} from "@karakeep/shared/queueing";
import logger from "@karakeep/shared/logger";
import { AdminClient } from "./admin";
import { envConfig } from "./env";
import { idProvider } from "./idProvider";
import { semaphore } from "./semaphore";
import { buildRestateService } from "./service";
class RestateQueueWrapper<T> implements Queue<T> {
constructor(
private readonly _name: string,
private readonly client: restateClient.Ingress,
private readonly adminClient: AdminClient,
public readonly opts: QueueOptions,
) {}
name(): string {
return this._name;
}
async enqueue(
payload: T,
options?: EnqueueOptions,
): Promise<string | undefined> {
interface MyService {
run: (
ctx: restate.Context,
data: {
payload: T;
priority: number;
groupId?: string;
queuedIdempotencyKey?: string;
},
) => Promise<void>;
}
const cl = this.client.serviceSendClient<MyService>({ name: this.name() });
const res = await cl.run(
{
payload,
priority: options?.priority ?? 0,
groupId: options?.groupId,
queuedIdempotencyKey: options?.idempotencyKey,
},
restateClient.rpc.sendOpts({
delay: options?.delayMs
? {
milliseconds: options.delayMs,
}
: undefined,
}),
);
return res.invocationId;
}
async stats(): Promise<{
pending: number;
pending_retry: number;
running: number;
failed: number;
}> {
const res = await this.adminClient.getStats(this.name());
return {
pending: res.pending + res.ready,
pending_retry: res["backing-off"] + res.paused + res.suspended,
running: res.running,
failed: 0,
};
}
async cancelAllNonRunning(): Promise<number> {
throw new Error("Method not implemented.");
}
}
class RestateRunnerWrapper<T> implements Runner<T> {
constructor(
private readonly wf: restate.ServiceDefinition<
string,
{
run: (ctx: restate.Context, data: T) => Promise<void>;
}
>,
) {}
async run(): Promise<void> {
// No-op for restate
}
async stop(): Promise<void> {
// No-op for restate
}
async runUntilEmpty(): Promise<void> {
throw new Error("Method not implemented.");
}
get def(): restate.WorkflowDefinition<string, unknown> {
return this.wf;
}
}
class RestateQueueClient implements QueueClient {
private client: restateClient.Ingress;
private adminClient: AdminClient;
private queues = new Map<string, RestateQueueWrapper<unknown>>();
private services = new Map<string, RestateRunnerWrapper<unknown>>();
constructor() {
this.client = restateClient.connect({
url: envConfig.RESTATE_INGRESS_ADDR,
});
this.adminClient = new AdminClient(envConfig.RESTATE_ADMIN_ADDR);
}
async prepare(): Promise<void> {
// No-op for restate
}
async start(): Promise<void> {
const port = await restate.serve({
port: envConfig.RESTATE_LISTEN_PORT ?? 0,
services: [
...[...this.services.values()].map((svc) => svc.def),
semaphore,
idProvider,
],
identityKeys: envConfig.RESTATE_PUB_KEY
? [envConfig.RESTATE_PUB_KEY]
: undefined,
logger: (meta, msg) => {
if (meta.context) {
// No need to log invocation logs
} else {
logger.log(meta.level, `[restate] ${msg}`);
}
},
});
logger.info(`Restate listening on port ${port}`);
}
createQueue<T>(name: string, opts: QueueOptions): Queue<T> {
if (this.queues.has(name)) {
throw new Error(`Queue ${name} already exists`);
}
const wrapper = new RestateQueueWrapper<T>(
name,
this.client,
this.adminClient,
opts,
);
this.queues.set(name, wrapper);
return wrapper;
}
createRunner<T, R = void>(
queue: Queue<T>,
funcs: RunnerFuncs<T, R>,
opts: RunnerOptions<T>,
): Runner<T> {
const name = queue.name();
let wrapper = this.services.get(name);
if (wrapper) {
throw new Error(`Queue ${name} already exists`);
}
const svc = new RestateRunnerWrapper<T>(
buildRestateService(queue, funcs, opts, queue.opts),
);
this.services.set(name, svc);
return svc;
}
async shutdown(): Promise<void> {
// No-op for sqlite
}
}
export class RestateQueueProvider implements PluginProvider<QueueClient> {
private client: QueueClient | null = null;
static isConfigured(): boolean {
return envConfig.RESTATE_LISTEN_PORT !== undefined;
}
async getClient(): Promise<QueueClient | null> {
if (!this.client) {
const client = new RestateQueueClient();
this.client = client;
}
return this.client;
}
}
|
