@altangent/aws-client/dist/lambda.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const aws_sdk_1 = require("aws-sdk");
const lambda = new aws_sdk_1.Lambda({ region: 'us-east-1' });
/**
 * Invokes the function and returns the parsed body
 * @param  {[type]} functionName [description]
 * @param  {[type]} body         [description]
 * @return {[type]}              [description]
 */
function invoke(functionName, body) {
    return __awaiter(this, void 0, void 0, function* () {
        return lambda
            .invoke({
            FunctionName: functionName,
            Payload: createPayload(body),
        })
            .promise()
            .then(data => parseResponse(functionName, data));
    });
}
exports.invoke = invoke;
/**
 * Invokes the event
 * @param  {[type]} functionName [description]
 * @param  {[type]} body         [description]
 * @return {[type]}              [description]
 */
function invokeEvent(functionName, body) {
    return __awaiter(this, void 0, void 0, function* () {
        return lambda
            .invoke({
            FunctionName: functionName,
            InvocationType: 'Event',
            Payload: createPayload(body),
        })
            .promise()
            .then(data => data.StatusCode === 200);
    });
}
exports.invokeEvent = invokeEvent;
/////////////////////////////
function createPayload(body) {
    if (body === undefined)
        return undefined;
    else if (typeof body === 'string') {
        return body;
    }
    else if (typeof body === 'object') {
        return JSON.stringify(body);
    }
}
function parseResponse(functionName, res) {
    let result;
    if (res.StatusCode === 200) {
        result = JSON.parse(res.Payload.toString());
    }
    if (!result) {
        return;
    }
    // errors will be serialized with errorMessage, errorType, and stack properties
    if (result.errorMessage) {
        let error = new Error(`Invocation of ${functionName} failed.`);
        console.log(result);
        error.stack = result.stack;
        throw error;
    }
    else {
        return result;
    }
}
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