@atomist/automation-client/graph/ApolloGraphClientFactory.js

Atomist API for software low-level client

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const NodeCache = require("node-cache");
const RequestProcessor_1 = require("../internal/transport/RequestProcessor");
const logger_1 = require("../internal/util/logger");
const ApolloGraphClient_1 = require("./ApolloGraphClient");
/**
 * Factory for creating GraphClient instances for incoming commands and events.
 *
 * Uses a cache to store GraphClient instances for 5 mins after which new instances will be given out.
 */
class ApolloGraphClientFactory {
    constructor(configuration, authCallback) {
        this.configuration = configuration;
        this.authCallback = authCallback;
        this.graphClients = new NodeCache({ stdTTL: 1 * 60, checkperiod: 1 * 30, useClones: false });
    }
    createGraphClient(event) {
        let workspaceId;
        if (RequestProcessor_1.isCommandIncoming(event)) {
            workspaceId = event.team.id;
        }
        else if (RequestProcessor_1.isEventIncoming(event)) {
            workspaceId = event.extensions.team_id;
        }
        let graphClient = this.graphClients.get(workspaceId);
        if (graphClient) {
            logger_1.logger.debug("Re-using cached graph client for team '%s'", workspaceId);
            return graphClient;
        }
        else if (this.authCallback) {
            logger_1.logger.debug("Creating new graph client for team '%s'", workspaceId);
            graphClient = new ApolloGraphClient_1.ApolloGraphClient(`${this.configuration.endpoints.graphql}/${workspaceId}`, { Authorization: this.authCallback() });
            this.graphClients.set(workspaceId, graphClient);
            return graphClient;
        }
        logger_1.logger.debug("Unable to create graph client for team '%s'", workspaceId);
        return null;
    }
}
exports.ApolloGraphClientFactory = ApolloGraphClientFactory;
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