Cut release v8.3.0

.vscode/launch.json

@@ -460,6 +460,13 @@
         "TS_NODE_SKIP_IGNORE": "true"
       }
     },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "docs: openapi-generator",
+      "runtimeArgs": ["-r", "ts-node/register/transpile-only"],
+      "args": ["${workspaceFolder}/src/openapi-generator.ts"]
+    },
     {
       "type": "node",
       "request": "launch",

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [8.3.0-beta.2](https://github.com/hirosystems/stacks-blockchain-api/compare/v8.3.0-beta.1...v8.3.0-beta.2) (2024-11-21)
+
+
+### Bug Fixes
+
+* socket-io reconnection bug ([#2174](https://github.com/hirosystems/stacks-blockchain-api/issues/2174)) ([b99c672](https://github.com/hirosystems/stacks-blockchain-api/commit/b99c672112c92f92bf1421f3eae44b6861292de9))
+
+## [8.3.0-beta.1](https://github.com/hirosystems/stacks-blockchain-api/compare/v8.2.2...v8.3.0-beta.1) (2024-11-19)
+
+
+### Features
+
+* option to modify estimated fees in /v2/fees/transaction proxy ([#2172](https://github.com/hirosystems/stacks-blockchain-api/issues/2172)) ([9b7e97d](https://github.com/hirosystems/stacks-blockchain-api/commit/9b7e97d8d3faf94b1d17162cb2bf17f214afe172))
+
 ## [8.2.2](https://github.com/hirosystems/stacks-blockchain-api/compare/v8.2.1...v8.2.2) (2024-11-10)
 
 

client/src/socket-io/index.ts

@@ -72,7 +72,7 @@ export class StacksApiSocketClient {
 
   handleSubscription(topic: Topic, subscribe = false, listener?: (...args: any[]) => void) {
     const subsQuery = this.socket.io.opts.query?.subscriptions as string | undefined;
-    const subscriptions = new Set(subsQuery?.split(',') ?? []);
+    const subscriptions = new Set(subsQuery ? subsQuery.split(',') : []);
     if (subscribe) {
       this.socket.emit('subscribe', topic, error => {
         if (error) console.error(`Error subscribing: ${error}`);

package.json

@@ -147,6 +147,7 @@
     "strict-event-emitter-types": "2.0.0",
     "tiny-secp256k1": "2.2.1",
     "ts-unused-exports": "7.0.3",
+    "undici": "6.21.0",
     "uuid": "8.3.2",
     "ws": "7.5.10",
     "zone-file": "2.0.0-beta.3"

src/api/routes/core-node-rpc-proxy.ts

@@ -21,6 +21,26 @@ function getReqUrl(req: { url: string; hostname: string }): URL {
   return new URL(req.url, `http://${req.hostname}`);
 }
 
+// https://github.com/stacks-network/stacks-core/blob/20d5137438c7d169ea97dd2b6a4d51b8374a4751/stackslib/src/chainstate/stacks/db/blocks.rs#L338
+const MINIMUM_TX_FEE_RATE_PER_BYTE = 1;
+
+interface FeeEstimation {
+  fee: number;
+  fee_rate: number;
+}
+interface FeeEstimateResponse {
+  cost_scalar_change_by_byte: number;
+  estimated_cost: {
+    read_count: number;
+    read_length: number;
+    runtime: number;
+    write_count: number;
+    write_length: number;
+  };
+  estimated_cost_scalar: number;
+  estimations: [FeeEstimation, FeeEstimation, FeeEstimation];
+}
+
 export const CoreNodeRpcProxyRouter: FastifyPluginAsync<
   Record<never, never>,
   Server,
@@ -117,10 +137,22 @@ export const CoreNodeRpcProxyRouter: FastifyPluginAsync<
     }
   );
 
+  let feeEstimationModifier: number | null = null;
+  fastify.addHook('onReady', () => {
+    const feeEstEnvVar = process.env['STACKS_CORE_FEE_ESTIMATION_MODIFIER'];
+    if (feeEstEnvVar) {
+      const parsed = parseFloat(feeEstEnvVar);
+      if (!isNaN(parsed) && parsed > 0) {
+        feeEstimationModifier = parsed;
+      }
+    }
+  });
+
   await fastify.register(fastifyHttpProxy, {
     upstream: `http://${stacksNodeRpcEndpoint}`,
     rewritePrefix: '/v2',
     http2: false,
+    globalAgent: true,
     preValidation: async (req, reply) => {
       if (getReqUrl(req).pathname !== '/v2/transactions') {
         return;
@@ -201,6 +233,29 @@ export const CoreNodeRpcProxyRouter: FastifyPluginAsync<
           const txId = responseBuffer.toString();
           await logTxBroadcast(txId);
           await reply.send(responseBuffer);
+        } else if (
+          getReqUrl(req).pathname === '/v2/fees/transaction' &&
+          reply.statusCode === 200 &&
+          feeEstimationModifier !== null
+        ) {
+          const reqBody = req.body as {
+            estimated_len?: number;
+            transaction_payload: string;
+          };
+          // https://github.com/stacks-network/stacks-core/blob/20d5137438c7d169ea97dd2b6a4d51b8374a4751/stackslib/src/net/api/postfeerate.rs#L200-L201
+          const txSize = Math.max(
+            reqBody.estimated_len ?? 0,
+            reqBody.transaction_payload.length / 2
+          );
+          const minFee = txSize * MINIMUM_TX_FEE_RATE_PER_BYTE;
+          const modifier = feeEstimationModifier;
+          const responseBuffer = await readRequestBody(response as ServerResponse);
+          const responseJson = JSON.parse(responseBuffer.toString()) as FeeEstimateResponse;
+          responseJson.estimations.forEach(estimation => {
+            // max(min fee, estimate returned by node * configurable modifier)
+            estimation.fee = Math.max(minFee, Math.round(estimation.fee * modifier));
+          });
+          await reply.removeHeader('content-length').send(JSON.stringify(responseJson));
         } else {
           await reply.send(response);
         }

src/api/routes/ws/channels/socket-io-channel.ts

@@ -90,7 +90,10 @@ export class SocketIOChannel extends WebSocketChannel {
     io.use((socket, next) => {
       const subscriptions = socket.handshake.query['subscriptions'];
       if (subscriptions) {
-        const topics = [...[subscriptions]].flat().flatMap(r => r.split(','));
+        const topics = [...[subscriptions]]
+          .flat()
+          .flatMap(r => r.split(','))
+          .filter(r => !!r);
         const invalidSubs = this.getInvalidSubscriptionTopics(topics as Topic[]);
         if (invalidSubs) {
           const error = new Error(`Invalid topic: ${invalidSubs.join(', ')}`);

src/api/schemas/responses/responses.ts

@@ -17,8 +17,9 @@ import { NakamotoBlockSchema, SignerSignatureSchema } from '../entities/block';
 export const ErrorResponseSchema = Type.Object(
   {
     error: Type.String(),
+    message: Type.Optional(Type.String()),
   },
-  { title: 'Error Response' }
+  { title: 'Error Response', additionalProperties: true }
 );
 
 export const ServerStatusResponseSchema = Type.Object(

src/event-stream/event-server.ts

@@ -757,17 +757,51 @@ export async function startEventServer(opts: {
   }
 
   const bodyLimit = 1_000_000 * 500; // 500MB body limit
+
+  const reqLogSerializer = (req: FastifyRequest) => ({
+    method: req.method,
+    url: req.url,
+    version: req.headers?.['accept-version'] as string,
+    hostname: req.hostname,
+    remoteAddress: req.ip,
+    remotePort: req.socket?.remotePort,
+    bodySize: parseInt(req.headers?.['content-length'] as string) || 'unknown',
+  });
+
   const loggerOpts: FastifyServerOptions['logger'] = {
     ...PINO_LOGGER_CONFIG,
     name: 'stacks-node-event',
+    serializers: {
+      req: reqLogSerializer,
+      res: reply => ({
+        statusCode: reply.statusCode,
+        method: reply.request?.method,
+        url: reply.request?.url,
+        requestBodySize: parseInt(reply.request?.headers['content-length'] as string) || 'unknown',
+        responseBodySize: parseInt(reply.getHeader?.('content-length') as string) || 'unknown',
+      }),
+    },
   };
+
   const app = Fastify({
     bodyLimit,
     trustProxy: true,
     logger: loggerOpts,
     ignoreTrailingSlash: true,
   });
 
+  app.addHook('onRequest', (req, reply, done) => {
+    req.raw.on('close', () => {
+      if (req.raw.aborted) {
+        req.log.warn(
+          reqLogSerializer(req),
+          `Request was aborted by the client: ${req.method} ${req.url}`
+        );
+      }
+    });
+    done();
+  });
+
   const handleRawEventRequest = async (req: FastifyRequest) => {
     await messageHandler.handleRawEventRequest(req.url, req.body, db);
 

src/openapi-generator.ts

@@ -1,9 +1,10 @@
 import Fastify from 'fastify';
-import { TypeBoxTypeProvider } from '@fastify/type-provider-typebox';
+import { TSchema, TypeBoxTypeProvider } from '@fastify/type-provider-typebox';
 import FastifySwagger from '@fastify/swagger';
 import { writeFileSync } from 'fs';
 import { OpenApiSchemaOptions } from './api/schemas/openapi';
 import { StacksApiRoutes } from './api/init';
+import { ErrorResponseSchema } from './api/schemas/responses/responses';
 
 /**
  * Generates `openapi.yaml` based on current Swagger definitions.
@@ -14,6 +15,16 @@ async function generateOpenApiFiles() {
     logger: true,
   }).withTypeProvider<TypeBoxTypeProvider>();
 
+  // If a response schema is defined but lacks a '4xx' response, add it
+  fastify.addHook(
+    'onRoute',
+    (route: { schema?: { response: Record<string | number, TSchema> } }) => {
+      if (route.schema?.response && !route.schema?.response['4xx']) {
+        route.schema.response['4xx'] = ErrorResponseSchema;
+      }
+    }
+  );
+
   await fastify.register(FastifySwagger, OpenApiSchemaOptions);
   await fastify.register(StacksApiRoutes);
   await fastify.ready();

tests/api/socket-io.test.ts

@@ -20,6 +20,7 @@ import {
   NftEvent,
   Transaction,
 } from 'client/src/types';
+import { Socket } from 'node:net';
 
 describe('socket-io', () => {
   let apiServer: ApiServer;
@@ -40,6 +41,62 @@ describe('socket-io', () => {
     await migrate('down');
   });
 
+  test('socket-io-client > reconnect', async () => {
+    const serverSocketConnectWaiter = waiter<Socket>();
+    apiServer.server.once('upgrade', (_req, socket: Socket) => {
+      serverSocketConnectWaiter.finish(socket);
+    });
+
+    const client = new StacksApiSocketClient({
+      url: `http://${apiServer.address}`,
+      // socketOpts: { reconnection: false },
+    });
+
+    const updateWaiter: Waiter<Block> = waiter();
+    const subResult = client.subscribeBlocks(block => updateWaiter.finish(block));
+
+    // subscriptions should be saved in the client query obj
+    expect(client.socket.io.opts.query).toMatchObject({ subscriptions: 'block' });
+
+    // wait for initial client connection
+    await new Promise<void>(resolve => client.socket.once('connect', resolve));
+
+    const connectAttempt = waiter();
+    client.socket.io.once('reconnect_attempt', attempt => {
+      // subscriptions should be saved in the client query obj
+      expect(client.socket.io.opts.query).toMatchObject({ subscriptions: 'block' });
+      connectAttempt.finish();
+    });
+
+    const reconnectWaiter = waiter();
+    client.socket.io.once('reconnect', () => reconnectWaiter.finish());
+
+    // force kill client connection on the server to trigger reconnect
+    const serverSocket = await serverSocketConnectWaiter;
+    serverSocket.resetAndDestroy();
+
+    await connectAttempt;
+    await reconnectWaiter;
+
+    // ensure client still waiting for block update
+    expect(updateWaiter.isFinished).toBe(false);
+
+    const block = new TestBlockBuilder({ block_hash: '0x1234', burn_block_hash: '0x5454' })
+      .addTx({ tx_id: '0x4321' })
+      .build();
+    await db.update(block);
+
+    const result = await updateWaiter;
+    try {
+      expect(result.hash).toEqual('0x1234');
+      expect(result.burn_block_hash).toEqual('0x5454');
+      expect(result.txs[0]).toEqual('0x4321');
+    } finally {
+      subResult.unsubscribe();
+      client.socket.close();
+    }
+  });
+
   test('socket-io-client > block updates', async () => {
     const client = new StacksApiSocketClient({
       url: `http://${apiServer.address}`,