ssm-config-loader/lib/singleton-config-getter.js

Load configuration from SSM Parameter Store with local fallback

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createSingletonConfigGetter = exports.ConfigError = void 0;
const client_ssm_1 = require("@aws-sdk/client-ssm");
const index_1 = require("./index");
class ConfigError extends Error {
    constructor(message, wrappedError) {
        if (wrappedError instanceof Error) {
            message += `: ${wrappedError.message}`;
        }
        super(message);
        this.wrappedError = wrappedError;
    }
}
exports.ConfigError = ConfigError;
const createSingletonConfigGetter = (ssm, schema, prefix) => {
    let configPromise;
    return async () => {
        if (configPromise) {
            return configPromise;
        }
        return configPromise = (async () => {
            let rawConfig;
            try {
                rawConfig = await (0, index_1.loadSsmConfig)(new client_ssm_1.SSM({}), prefix);
            }
            catch (error) {
                throw new ConfigError('Config loading failed', error);
            }
            try {
                return schema.parse(rawConfig);
            }
            catch (error) {
                throw new ConfigError('Config validation failed', error);
            }
        })();
    };
};
exports.createSingletonConfigGetter = createSingletonConfigGetter;
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