@ultipa-graph/ultipa-driver
Version:
NodeJS SDK for Ultipa GQL
122 lines • 12.5 kB
JavaScript
;
/**
* gRPC service clients for GQLDB Node.js driver.
* Uses @grpc/proto-loader for dynamic proto loading.
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.createServiceClients = createServiceClients;
exports.promisifyCall = promisifyCall;
exports.promisifyCallWithDeadline = promisifyCallWithDeadline;
const grpc = __importStar(require("@grpc/grpc-js"));
const protoLoader = __importStar(require("@grpc/proto-loader"));
const path = __importStar(require("path"));
// Proto loading options
const PROTO_OPTIONS = {
keepCase: true,
longs: String,
enums: String,
defaults: true,
oneofs: true,
};
// Load proto definition (bundled with the package)
const PROTO_PATH = path.resolve(__dirname, './proto/gqldb.proto');
let packageDefinition;
let grpcObject;
let gqldbPackage;
/**
* Load the proto file and return the gqldb package.
* Caches the result for subsequent calls.
*/
function loadProto() {
if (!gqldbPackage) {
packageDefinition = protoLoader.loadSync(PROTO_PATH, PROTO_OPTIONS);
grpcObject = grpc.loadPackageDefinition(packageDefinition);
gqldbPackage = grpcObject.gqldb;
}
return gqldbPackage;
}
/**
* Create all gRPC service clients for a given host.
*/
function createServiceClients(host, credentials, options) {
const proto = loadProto();
return {
sessionService: new proto.SessionService(host, credentials, options),
queryService: new proto.QueryService(host, credentials, options),
graphService: new proto.GraphService(host, credentials, options),
transactionService: new proto.TransactionService(host, credentials, options),
dataService: new proto.DataService(host, credentials, options),
healthService: new proto.Health(host, credentials, options),
adminService: new proto.AdminService(host, credentials, options),
bulkImportService: new proto.BulkImportService(host, credentials, options),
};
}
/**
* Helper to promisify unary gRPC calls.
*/
function promisifyCall(client, method, request, metadata) {
return new Promise((resolve, reject) => {
const fn = client[method].bind(client);
const meta = metadata || new grpc.Metadata();
fn(request, meta, (error, response) => {
if (error) {
reject(error);
}
else {
resolve(response);
}
});
});
}
/**
* Helper to promisify unary gRPC calls with deadline.
*/
function promisifyCallWithDeadline(client, method, request, timeoutMs, metadata) {
return new Promise((resolve, reject) => {
const fn = client[method].bind(client);
const meta = metadata || new grpc.Metadata();
const deadline = new Date(Date.now() + timeoutMs);
fn(request, meta, { deadline }, (error, response) => {
if (error) {
reject(error);
}
else {
resolve(response);
}
});
});
}
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* gRPC service clients for GQLDB Node.js driver.\n * Uses @grpc/proto-loader for dynamic proto loading.\n */\n\nimport * as grpc from '@grpc/grpc-js';\nimport * as protoLoader from '@grpc/proto-loader';\nimport * as path from 'path';\n\n// Proto loading options\nconst PROTO_OPTIONS: protoLoader.Options = {\n  keepCase: true,\n  longs: String,\n  enums: String,\n  defaults: true,\n  oneofs: true,\n};\n\n// Load proto definition (bundled with the package)\nconst PROTO_PATH = path.resolve(__dirname, './proto/gqldb.proto');\n\nlet packageDefinition: protoLoader.PackageDefinition;\nlet grpcObject: grpc.GrpcObject;\nlet gqldbPackage: any;\n\n/**\n * Load the proto file and return the gqldb package.\n * Caches the result for subsequent calls.\n */\nfunction loadProto(): any {\n  if (!gqldbPackage) {\n    packageDefinition = protoLoader.loadSync(PROTO_PATH, PROTO_OPTIONS);\n    grpcObject = grpc.loadPackageDefinition(packageDefinition);\n    gqldbPackage = grpcObject.gqldb;\n  }\n  return gqldbPackage;\n}\n\n/** Service client types */\nexport interface ServiceClients {\n  sessionService: grpc.Client;\n  queryService: grpc.Client;\n  graphService: grpc.Client;\n  transactionService: grpc.Client;\n  dataService: grpc.Client;\n  healthService: grpc.Client;\n  adminService: grpc.Client;\n  bulkImportService: grpc.Client;\n}\n\n/**\n * Create all gRPC service clients for a given host.\n */\nexport function createServiceClients(\n  host: string,\n  credentials: grpc.ChannelCredentials,\n  options?: grpc.ChannelOptions\n): ServiceClients {\n  const proto = loadProto();\n\n  return {\n    sessionService: new proto.SessionService(host, credentials, options),\n    queryService: new proto.QueryService(host, credentials, options),\n    graphService: new proto.GraphService(host, credentials, options),\n    transactionService: new proto.TransactionService(host, credentials, options),\n    dataService: new proto.DataService(host, credentials, options),\n    healthService: new proto.Health(host, credentials, options),\n    adminService: new proto.AdminService(host, credentials, options),\n    bulkImportService: new proto.BulkImportService(host, credentials, options),\n  };\n}\n\n/**\n * Helper to promisify unary gRPC calls.\n */\nexport function promisifyCall<TRequest, TResponse>(\n  client: any,\n  method: string,\n  request: TRequest,\n  metadata?: grpc.Metadata\n): Promise<TResponse> {\n  return new Promise((resolve, reject) => {\n    const fn = client[method].bind(client);\n    const meta = metadata || new grpc.Metadata();\n\n    fn(request, meta, (error: grpc.ServiceError | null, response: TResponse) => {\n      if (error) {\n        reject(error);\n      } else {\n        resolve(response);\n      }\n    });\n  });\n}\n\n/**\n * Helper to promisify unary gRPC calls with deadline.\n */\nexport function promisifyCallWithDeadline<TRequest, TResponse>(\n  client: any,\n  method: string,\n  request: TRequest,\n  timeoutMs: number,\n  metadata?: grpc.Metadata\n): Promise<TResponse> {\n  return new Promise((resolve, reject) => {\n    const fn = client[method].bind(client);\n    const meta = metadata || new grpc.Metadata();\n    const deadline = new Date(Date.now() + timeoutMs);\n\n    fn(request, meta, { deadline }, (error: grpc.ServiceError | null, response: TResponse) => {\n      if (error) {\n        reject(error);\n      } else {\n        resolve(response);\n      }\n    });\n  });\n}\n"]}