@emeraldpay/api/lib/Executor.js

Common code for Emerald gRPC APIs

"use strict";
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 (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Executor = exports.isMethodExecutor = void 0;
const Publisher_1 = require("./Publisher");
const Retry_1 = require("./Retry");
const grpc = __importStar(require("./typesGrpc"));
function isMethodExecutor(executor) {
    return (typeof executor === 'object' && executor != null && 'execute' in executor && typeof executor.execute === 'function');
}
exports.isMethodExecutor = isMethodExecutor;
class Executor extends Publisher_1.ManagedPublisher {
    constructor(call, checker, request) {
        super();
        this.connections = 0;
        if (call == null || typeof call !== 'function') {
            throw new Error('Call is not provided');
        }
        if (checker == null || !(0, Retry_1.isContinueCheck)(checker)) {
            throw new Error('Continue checker is not provided');
        }
        if (request == null) {
            throw new Error('Request is not provided');
        }
        this.call = call;
        this.checker = checker;
        this.request = request;
    }
    setLogger(logger) {
        this.logger = logger;
    }
    cancel() {
        var _a;
        this.checker.onClose();
        (_a = this.upstream) === null || _a === void 0 ? void 0 : _a.cancel();
    }
    execute(reconnect) {
        if (this.upstream != null) {
            this.upstream.cancel();
            this.upstream = null;
        }
        const callId = this.connections++;
        const upstream = this.call(this.request);
        upstream
            .onData((data) => {
            var _a, _b, _c;
            (_a = this.logger) === null || _a === void 0 ? void 0 : _a.log(`gRPC request ${callId} data`);
            (_c = (_b = this.checker).onSuccess) === null || _c === void 0 ? void 0 : _c.call(_b);
            this.emitData(data);
        })
            .onError((error) => {
            var _a, _b, _c, _d, _e;
            (_b = (_a = this.checker).onFail) === null || _b === void 0 ? void 0 : _b.call(_a);
            if (typeof error === 'object' && 'code' in error && typeof error.code === 'number') {
                const grpcError = error;
                if (grpcError.code === grpc.GrpcStatus.UNKNOWN ||
                    grpcError.code === grpc.GrpcStatus.UNAVAILABLE ||
                    grpcError.code === grpc.GrpcStatus.INTERNAL) {
                    (_c = this.logger) === null || _c === void 0 ? void 0 : _c.warn(`gRPC connection for ${callId} lost with code ${grpcError.code}: ${grpcError.message}. Reconnecting...`);
                    this.reconnect();
                    setTimeout(reconnect.bind(this), 100);
                }
                else {
                    (_d = this.logger) === null || _d === void 0 ? void 0 : _d.error(`gRPC connection for ${callId} lost with code ${grpcError.code}: ${grpcError.message}. Closing...`);
                    this.cancel();
                    this.emitError(grpcError);
                }
            }
            else {
                (_e = this.logger) === null || _e === void 0 ? void 0 : _e.error(`gRPC client error: ${error.message}. Closing...`);
                this.cancel();
                this.emitError(error);
            }
        })
            .finally(() => {
            var _a;
            if (!this.reconnecting) {
                (_a = this.logger) === null || _a === void 0 ? void 0 : _a.log(`gRPC request ${callId} closed`);
                this.checker.onClose();
                this.emitClosed();
            }
        });
        this.upstream = upstream;
    }
    terminate() {
        this.cancel();
        this.emitError(new Error('Execution terminated'));
    }
}
exports.Executor = Executor;
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