chore: install vercel/ai package; remove gigachat/ai static file; requests from /gigachat endpoint are not require SSL

package-lock.json

@@ -9,6 +9,7 @@
       "version": "1.0.1",
       "license": "MIT",
       "dependencies": {
+        "ai": "^4.1.13",
         "axios": "^1.7.7",
         "bcrypt": "^5.1.0",
         "body-parser": "^1.19.0",
@@ -39,6 +40,90 @@
         "supertest": "^7.0.0"
       }
     },
+    "node_modules/@ai-sdk/provider": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/@ai-sdk/provider/-/provider-1.0.6.tgz",
+      "integrity": "sha512-hwj/gFNxpDgEfTaYzCYoslmw01IY9kWLKl/wf8xuPvHtQIzlfXWmmUwc8PnCwxyt8cKzIuV0dfUghCf68HQ0SA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "json-schema": "^0.4.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@ai-sdk/provider-utils": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@ai-sdk/provider-utils/-/provider-utils-2.1.5.tgz",
+      "integrity": "sha512-PcNR7E4ovZGV/J47gUqaFlvzorgca6uUfN5WzfXJSFWeOeLunN+oxRVwgUOwj0zbmO0yGQTHQD+FHVw8s3Rz8w==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@ai-sdk/provider": "1.0.6",
+        "eventsource-parser": "^3.0.0",
+        "nanoid": "^3.3.8",
+        "secure-json-parse": "^2.7.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "zod": "^3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "zod": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@ai-sdk/react": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/@ai-sdk/react/-/react-1.1.7.tgz",
+      "integrity": "sha512-QvTXmv+b05Q4cdruxt6UrM8qCcVOVFEAoJxemC/VV0Hyp6f+Udrm4KGDRwqtijGpl3P3zN1+7JwSUI9wOBz0Qw==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@ai-sdk/provider-utils": "2.1.5",
+        "@ai-sdk/ui-utils": "1.1.7",
+        "swr": "^2.2.5",
+        "throttleit": "2.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19 || ^19.0.0-rc",
+        "zod": "^3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        },
+        "zod": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@ai-sdk/ui-utils": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/@ai-sdk/ui-utils/-/ui-utils-1.1.7.tgz",
+      "integrity": "sha512-S9Q9rCvMPUe/RP5gc1kSn6yLe/4CFrvLP7H47Dcq5c0z6NEYDySL+ycecB6V2eRyxqxsVneL2zOvX6aubDhz1w==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@ai-sdk/provider": "1.0.6",
+        "@ai-sdk/provider-utils": "2.1.5",
+        "zod-to-json-schema": "^3.24.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "zod": "^3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "zod": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@ampproject/remapping": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.3.0.tgz",
@@ -1470,6 +1555,15 @@
         "sparse-bitfield": "^3.0.3"
       }
     },
+    "node_modules/@opentelemetry/api": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.9.0.tgz",
+      "integrity": "sha512-3giAOQvZiH5F9bMlMiv8+GSPMeqg0dbaeo58/0SlA9sxSqZhnUtxzX9/2FzyhS9sWQf5S0GJE0AKBrFqjpeYcg==",
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
     "node_modules/@sinclair/typebox": {
       "version": "0.27.8",
       "resolved": "https://registry.npmjs.org/@sinclair/typebox/-/typebox-0.27.8.tgz",
@@ -1568,6 +1662,12 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/diff-match-patch": {
+      "version": "1.0.36",
+      "resolved": "https://registry.npmjs.org/@types/diff-match-patch/-/diff-match-patch-1.0.36.tgz",
+      "integrity": "sha512-xFdR6tkm0MWvBfO8xXCSsinYxHcqkQUlcHeSpMC2ukzOb6lwQAfDmW+Qt0AvlGd8HpsS28qKsB+oPeJn9I39jg==",
+      "license": "MIT"
+    },
     "node_modules/@types/estree": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.6.tgz",
@@ -1748,6 +1848,35 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
+    "node_modules/ai": {
+      "version": "4.1.13",
+      "resolved": "https://registry.npmjs.org/ai/-/ai-4.1.13.tgz",
+      "integrity": "sha512-tEr3gt2X2NkCBDSxyeFRnWQ17AlfYYnH/2eImfakuq0AJBYRwk3VYK2twKd0gGFXVd6xBdlae5/PybpSiAyCbA==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@ai-sdk/provider": "1.0.6",
+        "@ai-sdk/provider-utils": "2.1.5",
+        "@ai-sdk/react": "1.1.7",
+        "@ai-sdk/ui-utils": "1.1.7",
+        "@opentelemetry/api": "1.9.0",
+        "jsondiffpatch": "0.6.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19 || ^19.0.0-rc",
+        "zod": "^3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        },
+        "zod": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/ajv": {
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
@@ -2672,6 +2801,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/dequal": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/dequal/-/dequal-2.0.3.tgz",
+      "integrity": "sha512-0je+qPKHEMohvfRTCEo3CrPG6cAzAYgmzKyxRiYSSDkS6eGJdyVJm7WaYA5ECaAD9wLB2T4EEeymA5aFVcYXCA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/destroy": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
@@ -2710,6 +2848,12 @@
         "wrappy": "1"
       }
     },
+    "node_modules/diff-match-patch": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/diff-match-patch/-/diff-match-patch-1.0.5.tgz",
+      "integrity": "sha512-IayShXAgj/QMXgB0IWmKx+rOPuGMhqm5w6jvFxmVenXKIzRqTAAsbBPT3kWQeGANj3jGgvcvv4yK6SxqYmikgw==",
+      "license": "Apache-2.0"
+    },
     "node_modules/diff-sequences": {
       "version": "29.6.3",
       "resolved": "https://registry.npmjs.org/diff-sequences/-/diff-sequences-29.6.3.tgz",
@@ -3096,6 +3240,15 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/eventsource-parser": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.0.0.tgz",
+      "integrity": "sha512-T1C0XCUimhxVQzW4zFipdx0SficT651NnkR0ZSH3yQwh+mFMdLfgjABVi4YtMTtaL4s168593DaoaRLMqryavA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
     "node_modules/execa": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/execa/-/execa-5.1.1.tgz",
@@ -4888,6 +5041,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/json-schema": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
+      "integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA==",
+      "license": "(AFL-2.1 OR BSD-3-Clause)"
+    },
     "node_modules/json-schema-traverse": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
@@ -4915,6 +5074,35 @@
         "node": ">=6"
       }
     },
+    "node_modules/jsondiffpatch": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/jsondiffpatch/-/jsondiffpatch-0.6.0.tgz",
+      "integrity": "sha512-3QItJOXp2AP1uv7waBkao5nCvhEv+QmJAd38Ybq7wNI74Q+BBmnLn4EDKz6yI9xGAIQoUF87qHt+kc1IVxB4zQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/diff-match-patch": "^1.0.36",
+        "chalk": "^5.3.0",
+        "diff-match-patch": "^1.0.5"
+      },
+      "bin": {
+        "jsondiffpatch": "bin/jsondiffpatch.js"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      }
+    },
+    "node_modules/jsondiffpatch/node_modules/chalk": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.4.1.tgz",
+      "integrity": "sha512-zgVZuo2WcZgfUEmsn6eO3kINexW8RAE4maiQ8QNs8CtpPCSyMiYsULR3HQYkm3w8FIA3SberyMJMSldGsW+U3w==",
+      "license": "MIT",
+      "engines": {
+        "node": "^12.17.0 || ^14.13 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
+    },
     "node_modules/jsonwebtoken": {
       "version": "8.5.1",
       "resolved": "https://registry.npmjs.org/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz",
@@ -5499,6 +5687,24 @@
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
       "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
     },
+    "node_modules/nanoid": {
+      "version": "3.3.8",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.8.tgz",
+      "integrity": "sha512-WNLf5Sd8oZxOm+TzppcYk8gVOgP+l58xNy58D0nbUnOxOWRWvlcCV4kUF7ltmI6PsrLl/BgKEyS4mqsGChFN0w==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "bin": {
+        "nanoid": "bin/nanoid.cjs"
+      },
+      "engines": {
+        "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
+      }
+    },
     "node_modules/natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
@@ -6151,6 +6357,16 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/react": {
+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/react/-/react-19.0.0.tgz",
+      "integrity": "sha512-V8AVnmPIICiWpGfm6GLzCR/W5FXLchHop40W4nXBmdlEceh16rCN8O8LNWm5bh5XUX91fh7KpA+W0TgMKmgTpQ==",
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/react-is": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-18.3.1.tgz",
@@ -6348,6 +6564,12 @@
         "node": ">=v12.22.7"
       }
     },
+    "node_modules/secure-json-parse": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/secure-json-parse/-/secure-json-parse-2.7.0.tgz",
+      "integrity": "sha512-6aU+Rwsezw7VR8/nyvKTx8QpWH9FrcYiXXlqC4z5d5XQBDRqtbfsRjnwGyqbi3gddNtWHuEk9OANUotL26qKUw==",
+      "license": "BSD-3-Clause"
+    },
     "node_modules/semver": {
       "version": "7.5.4",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
@@ -6814,6 +7036,19 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/swr": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/swr/-/swr-2.3.0.tgz",
+      "integrity": "sha512-NyZ76wA4yElZWBHzSgEJc28a0u6QZvhb6w0azeL2k7+Q1gAzVK+IqQYXhVOC/mzi+HZIozrZvBVeSeOZNR2bqA==",
+      "license": "MIT",
+      "dependencies": {
+        "dequal": "^2.0.3",
+        "use-sync-external-store": "^1.4.0"
+      },
+      "peerDependencies": {
+        "react": "^16.11.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/symbol-tree": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
@@ -6857,6 +7092,18 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/throttleit": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/throttleit/-/throttleit-2.1.0.tgz",
+      "integrity": "sha512-nt6AMGKW1p/70DF/hGBdJB57B8Tspmbp5gfJ8ilhLnt7kkr2ye7hzD6NVG8GGErk2HWF34igrL2CXmNIkzKqKw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/tmpl": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.5.tgz",
@@ -7072,6 +7319,15 @@
         "requires-port": "^1.0.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.4.0.tgz",
+      "integrity": "sha512-9WXSPC5fMv61vaupRkCKCxsPxBocVnwakBEkMIHHpkTTg6icbJtg6jzgtLDm4bl3cSHAca52rYWih0k4K3PfHw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -7339,6 +7595,25 @@
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
+    },
+    "node_modules/zod": {
+      "version": "3.24.1",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.24.1.tgz",
+      "integrity": "sha512-muH7gBL9sI1nciMZV67X5fTKKBLtwpZ5VBp1vsOQzj1MhrBZ4wlVCm3gedKZWLp0Oyel8sIGfeiz54Su+OVT+A==",
+      "license": "MIT",
+      "peer": true,
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "node_modules/zod-to-json-schema": {
+      "version": "3.24.1",
+      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.1.tgz",
+      "integrity": "sha512-3h08nf3Vw3Wl3PK+q3ow/lIil81IT2Oa7YpQyUUDsEWbXveMesdfK1xBd2RhCkynwZndAxixji/7SYJJowr62w==",
+      "license": "ISC",
+      "peerDependencies": {
+        "zod": "^3.24.1"
+      }
     }
   }
 }

package.json

@@ -23,6 +23,7 @@
   "license": "MIT",
   "homepage": "https://bitbucket.org/online-mentor/multi-stub#readme",
   "dependencies": {
+    "ai": "^4.1.13",
     "axios": "^1.7.7",
     "bcrypt": "^5.1.0",
     "body-parser": "^1.19.0",
@@ -52,4 +53,4 @@
     "nodemon": "3.0.1",
     "supertest": "^7.0.0"
   }
-}
+}

server/routers/kfu-m-24-1/eng-it-lean/gigachat/index.js

@@ -1,76 +1,94 @@
-const https = require('follow-redirects').https;
+const axios = require('axios');
+const https = require('https');
 const fs = require('fs');
 const qs = require('querystring');
 const uuid = require('uuid');
 
 const router = require('express').Router();
 
-// vercel/ai package - https://github.com/vercel/ai
+// vercel/ai package
-const ai = require('./ai')
+const ai = require('./ai');
 // gigachat provider for vercel/ai
-const gigachatProvider = require('./gigachat')
+const gigachatProvider = require('./gigachat');
 
 module.exports = router;
 
-process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0'
+const path = require('path');
-process.env.GIGACHAT_AUTH = 'NWVjYTczYjctNWRkYi00NzExLTg0YTEtMjhlOWVmODM2MjI4OjlmMTBkMGVkLWZjZjktNGZhOS1hNDZjLTc5ZWU1YzExOGExMw=='
+//process.env.NODE_EXTRA_CA_CERTS= path.resolve(__dirname, 'certs')
+//process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0'
 
-const gigachat = gigachatProvider.createGigachat( { 
+process.env.GIGACHAT_AUTH =
+  'NWVjYTczYjctNWRkYi00NzExLTg0YTEtMjhlOWVmODM2MjI4OjlmMTBkMGVkLWZjZjktNGZhOS1hNDZjLTc5ZWU1YzExOGExMw==';
+
+const agent = new https.Agent({
+  rejectUnauthorized: false
+});
+
+const gigachat = gigachatProvider.createGigachat({
   headers: {
     'Content-Type': 'application/json',
-    'Accept': 'application/json',
+    Accept: 'text/event-stream'
+  },
+  fetch: (url, options) => {
+    return axios({
+      method: 'post',
+      maxBodyLength: Infinity,
+      url: url,
+      headers: options.headers,
+      httpsAgent: agent,
+      data: options.body
+    }).then((response) => {
+      return new Response(response.data, {
+        status: response.status,
+        statusText: response.statusText,
+        headers: response.headers,
+        body: response.data
+      });
+    }).catch((error) => {
+      return new Response(error.message, {
+        status: error.response.status,
+        statusText: error.response.statusText,
+        headers: error.response.headers,
+        body: error.response.data
+      });
+    });
   }
-})
+});
 
-router.use((req, res, next) => {
+router.use(async (req, res, next) => {
   const hasToken = process.env.GIGACHAT_ACCESS_TOKEN && process.env.GIGACHAT_EXPIRES_AT != null;
   const hasExpired = new Date(process.env.GIGACHAT_EXPIRES_AT) <= new Date();
   if (!hasToken || hasExpired) {
     let auth = process.env.GIGACHAT_AUTH;
     let rquid = uuid.v4();
-    let options = {
+
-      'method': 'POST',
+    let config = {
-      'hostname': 'ngw.devices.sberbank.ru',
+      method: 'post',
-      'port': 9443,
+      maxBodyLength: Infinity,
-      'path': '/api/v2/oauth',
+      url: 'https://ngw.devices.sberbank.ru:9443/api/v2/oauth',
-      'headers': {
+      headers: {
         'Content-Type': 'application/x-www-form-urlencoded',
-        'Accept': 'application/json',
+        Accept: 'application/json',
-        'RqUID': rquid,
+        RqUID: rquid,
-        'Authorization': 'Basic ' + auth
+        Authorization: 'Basic ' + auth
       },
-      'maxRedirects': 20
+      httpsAgent: agent,
+      data: qs.stringify({
+        scope: 'GIGACHAT_API_PERS'
+      })
     };
-    
+
-    const req = https.request(options, (response) => {
+    try {
-      let chunks = [];
+      const response = await axios(config);
-    
+      const json = response.data;
-      response.on("data", (chunk) => {
+      process.env.GIGACHAT_ACCESS_TOKEN = json.access_token;
-        chunks.push(chunk);
+      process.env.GIGACHAT_EXPIRES_AT = json.expires_at;
-      });
+      console.log(JSON.stringify(response.data));
-    
+    } catch {
-      response.on("end", (chunk) => {
+      console.log(error);
-        let body = Buffer.concat(chunks);
+    }
-        console.log(body.toString());
-        let json = JSON.parse(body.toString());
-        process.env.GIGACHAT_ACCESS_TOKEN = json.access_token;
-        process.env.GIGACHAT_EXPIRES_AT = json.expires_at;
-      });
-    
-      response.on("error", (error) => {
-        console.error(error);
-        res.status(500).send(error);
-      });
-    });
-    
-    let postData = qs.stringify({
-      'scope': 'GIGACHAT_API_PERS'
-    });
-    
-    req.write(postData);
-    req.end();
   }
-  next()
+  next();
 });
 
 router.post('/chat', async (req, res) => {
@@ -81,18 +99,16 @@ router.post('/chat', async (req, res) => {
     system: 'You are a helpful assistant.',
     messages,
     stream: true,
-    update_interval: 0.2,
+    update_interval: 0.2
   });
 
   result.pipeDataStreamToResponse(res);
-})
+});
 
 router.post('/new-unit', async (req, res) => {
   const { prompt } = req.body;
 
-  const result =  ai.streamText({
+  const systemMessage = `
-    model: gigachat('GigaChat'),
-    system:`
     Я хочу, чтобы вы выступали в роли помощника для создания продвинутых текстовых уроков английского языка. Я буду указывать тему и уровень сложности (начинающий, средний, продвинутый), а вы будете предоставлять структурированный план урока в формате Markdown. Урок должен включать только текстовые элементы (без видео, картинок, аудио) и содержать следующие разделы:
     -Цель урока — конкретный навык или знание, которое освоят студенты.
     -Лексика
@@ -110,11 +126,19 @@ router.post('/new-unit', async (req, res) => {
     -Домашнее задание
       Текстовые задачи: написание текста, грамматические тесты, поиск синонимов/антонимов.
     Ответ должен быть оформлен в Markdown, лаконичным, без лишних комментариев, если пишешь блок кода, начинай его с новой строки.
-    `,
+    `;
-    prompt,
-    stream: true,
-    update_interval: 0.3,
-  });
 
-  result.pipeDataStreamToResponse(res);
+  try {
+    const result = ai.streamText({
+      model: gigachat('GigaChat'),
+      system: systemMessage,
+      prompt,
+      stream: true,
+      update_interval: 0.3
+    });
+
+    result.pipeTextStreamToResponse(res);
+  } catch (e) {
+    console.log(e);
+  }
 });