@google-cloud/common-grpc
Version:
Common components for Cloud APIs Node.js Client Libraries that require gRPC
100 lines • 3.34 kB
JavaScript
"use strict";
/*!
* Copyright 2015 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
/*!
* @module commonGrpc/serviceObject
*/
const common_1 = require("@google-cloud/common");
const promisify_1 = require("@google-cloud/promisify");
const extend = require("extend");
class GrpcServiceObject extends common_1.ServiceObject {
/**
* GrpcServiceObject is a base class, meant to be inherited from by a service
* object that uses the gRPC protobuf API.
*
* @constructor
* @alias module:common/grpc-service-object
*
* @private
*
* @param {object} config - Configuration object.
*/
constructor(config) {
super(config);
}
delete(callback) {
// tslint:disable-next-line:no-any
const protoOpts = this.methods.delete.protoOpts;
const reqOpts = this.getOpts(this.methods.delete);
this.request(protoOpts, reqOpts, callback || common_1.util.noop);
}
getMetadata(callback) {
// tslint:disable-next-line:no-any
const protoOpts = this.methods.getMetadata.protoOpts;
const reqOpts = this.getOpts(this.methods.getMetadata);
this.request(protoOpts, reqOpts, (err, resp) => {
if (err) {
callback(err, null, resp);
return;
}
this.metadata = resp;
callback(null, this.metadata, resp);
});
}
setMetadata(metadata, callback) {
// tslint:disable-next-line:no-any
const protoOpts = this.methods.setMetadata.protoOpts;
const reqOpts = extend(true, {}, this.getOpts(this.methods.setMetadata), metadata);
this.request(protoOpts, reqOpts, callback || common_1.util.noop);
}
/**
* Patch a request to the GrpcService object.
*
* @private
*/
request(...args) {
return this.parent.request.apply(this.parent, args);
}
/**
* Patch a streaming request to the GrpcService object.
*
* @private
*/
requestStream(...args) {
return this.parent.requestStream.apply(this.parent, args);
}
/**
* Patch a writable streaming request to the GrpcService object.
*
* @private
*/
requestWritableStream(...args) {
// tslint:disable-next-line:no-any
return this.parent.requestWritableStream.apply(this.parent, args);
}
getOpts(metadata) {
return typeof metadata === 'boolean' ? {} : metadata.reqOpts || {};
}
}
exports.GrpcServiceObject = GrpcServiceObject;
/*! Developer Documentation
*
* All async methods (except for streams) will return a Promise in the event
* that a callback is omitted.
*/
promisify_1.promisifyAll(GrpcServiceObject);
//# sourceMappingURL=service-object.js.map