return git info in /extended/v1/status

.gitignore

@@ -123,3 +123,6 @@ openapitools.json
 
 .env.local
 yarn.lock
+
+# Git info output
+.git-info

docs/api/info/get-status.example.json

@@ -0,0 +1,4 @@
+{
+  "server_version": "stacks-blockchain-api v0.64.1 (master:439d4f46)",
+  "status": "ready"
+}

docs/api/info/get-status.schema.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "GET blockchain API status",
+  "title": "ServerStatusResponse",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "status"
+  ],
+  "properties": {
+    "server_version": {
+      "type": "string",
+      "description": "the server version that is currently running"
+    },
+    "status": {
+      "type": "string",
+      "description": "the current server status"
+    }
+  }
+}

docs/generated.d.ts

@@ -39,6 +39,7 @@ export type SchemaMergeRootStub =
   | RunFaucetResponse
   | NetworkBlockTimeResponse
   | NetworkBlockTimesResponse
+  | ServerStatusResponse
   | GetStxCirculatingSupplyPlainResponse
   | GetStxSupplyLegacyFormatResponse
   | GetStxTotalSupplyPlainResponse
@@ -1531,6 +1532,19 @@ export interface NetworkBlockTimesResponse {
     target_block_time: number;
   };
 }
+/**
+ * GET blockchain API status
+ */
+export interface ServerStatusResponse {
+  /**
+   * the server version that is currently running
+   */
+  server_version?: string;
+  /**
+   * the current server status
+   */
+  status: string;
+}
 /**
  * GET request that returns network target block times
  */

docs/openapi.yaml

@@ -1399,9 +1399,10 @@ paths:
           description: Success
           content:
             application/json:
-              examples:
-                success:
-                  value: { status: 'ready' }
+              schema:
+                $ref: ./api/info/get-status.schema.json
+              example:
+                $ref: ./api/info/get-status.example.json
 
   /extended/v1/info/network_block_times:
     get:

package.json

@@ -16,7 +16,8 @@
     "test:integration:rosetta": "npm run devenv:deploy -- -d && cross-env NODE_ENV=development jest --config ./jest.config.rosetta.js --coverage --no-cache --runInBand; npm run devenv:stop",
     "test:integration:bns": "npm run devenv:deploy -- -d && cross-env NODE_ENV=development jest --config ./jest.config.bns.js --coverage --no-cache --runInBand; npm run devenv:stop",
     "test:integration:microblocks": "npm run devenv:deploy:pg -- -d && cross-env NODE_ENV=development jest --config ./jest.config.microblocks.js --coverage --no-cache --runInBand; npm run devenv:stop:pg",
-    "build": "rimraf ./lib && tsc -p tsconfig.build.json",
+    "git-info": "echo \"$(git rev-parse --abbrev-ref HEAD)\n$(git log -1 --pretty=format:%h)\n$(git describe --tags --abbrev=0)\" > ./.git-info",
+    "build": "npm run git-info && rimraf ./lib && tsc -p tsconfig.build.json",
     "build:tests": "tsc -p tsconfig.json",
     "build:docs": "npm i --prefix client && npm run generate:docs --prefix client && npm i --prefix docs && npm run generate:docs --prefix docs",
     "start": "node ./lib/index.js",

src/api/init.ts

@@ -40,6 +40,7 @@ import * as pathToRegex from 'path-to-regexp';
 import * as expressListEndpoints from 'express-list-endpoints';
 import { createMiddleware as createPrometheusMiddleware } from '@promster/express';
 import { createMicroblockRouter } from './routes/microblock';
+import { createStatusRouter } from './routes/status';
 
 export interface ApiServer {
   expressApp: ExpressWithAsync;
@@ -149,7 +150,7 @@ export async function startApiServer(opts: {
       router.use('/info', createInfoRouter(datastore));
       router.use('/stx_supply', createStxSupplyRouter(datastore));
       router.use('/debug', createDebugRouter(datastore));
-      router.use('/status', (req, res) => res.status(200).json({ status: 'ready' }));
+      router.use('/status', createStatusRouter(datastore));
       router.use('/faucets', createFaucetRouter(datastore));
       return router;
     })()

src/api/routes/status.ts

@@ -0,0 +1,29 @@
+import * as express from 'express';
+import * as fs from 'fs';
+import { addAsync, RouterWithAsync } from '@awaitjs/express';
+import { DataStore } from '../../datastore/common';
+import { ServerStatusResponse } from '@stacks/stacks-blockchain-api-types';
+import { logger } from '../../helpers';
+
+export function createStatusRouter(_: DataStore): RouterWithAsync {
+  const router = addAsync(express.Router());
+
+  router.get('/', (_, res) => {
+    try {
+      const [branch, commit, tag] = fs.readFileSync('.git-info', 'utf-8').split('\n');
+      const response: ServerStatusResponse = {
+        server_version: `stacks-blockchain-api ${tag} (${branch}:${commit})`,
+        status: 'ready',
+      };
+      res.json(response);
+    } catch (error) {
+      logger.error(`Unable to read git info`, error);
+      const response: ServerStatusResponse = {
+        status: 'ready',
+      };
+      res.json(response);
+    }
+  });
+
+  return router;
+}

src/index.ts

@@ -137,6 +137,10 @@ async function init(): Promise<void> {
     });
   }
 
+  if (isProdEnv && !fs.existsSync('.git-info')) {
+    throw new Error(`Git info file not found`);
+  }
+
   const apiServer = await startApiServer({ datastore: db, chainId: getConfiguredChainID() });
   logger.info(`API server listening on: http://${apiServer.address}`);
   registerShutdownConfig({