faastjs/dist/src/aws/aws-queue.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.receiveMessages = exports.processAwsErrorMessage = exports.createSQSQueue = exports.publishFunctionCallMessage = exports.sendResponseQueueMessage = exports.createSNSTopic = void 0;
const error_1 = require("../error");
const log_1 = require("../log");
const serialize_1 = require("../serialize");
const shared_1 = require("../shared");
const throttle_1 = require("../throttle");
const wrapper_1 = require("../wrapper");
async function createSNSTopic(sns, Name) {
    const topic = await sns.createTopic({ Name }).promise();
    return topic.TopicArn;
}
exports.createSNSTopic = createSNSTopic;
function countRequests(bytes) {
    return Math.ceil(bytes / (64 * 1024));
}
async function sendResponseQueueMessage(sqs, QueueUrl, message) {
    try {
        const request = { QueueUrl, MessageBody: (0, serialize_1.serialize)(message) };
        await sqs.sendMessage(request).promise();
    }
    catch (err) {
        log_1.log.warn(err);
    }
}
exports.sendResponseQueueMessage = sendResponseQueueMessage;
function publishFunctionCallMessage(sns, TopicArn, message, metrics) {
    const serialized = (0, serialize_1.serialize)(message);
    metrics.sns64kRequests += countRequests(serialized.length);
    return (0, throttle_1.retryOp)((err, n) => n < 6 && err?.message?.match(/does not exist/), () => sns
        .publish({
        TopicArn,
        Message: serialized
    })
        .promise());
}
exports.publishFunctionCallMessage = publishFunctionCallMessage;
async function createSQSQueue(QueueName, VTimeout, sqs) {
    try {
        const createQueueRequest = {
            QueueName,
            Attributes: {
                VisibilityTimeout: `${VTimeout}`
            }
        };
        const response = await sqs.createQueue(createQueueRequest).promise();
        const QueueUrl = response.QueueUrl;
        const arnResponse = await sqs
            .getQueueAttributes({ QueueUrl, AttributeNames: ["QueueArn"] })
            .promise();
        const QueueArn = arnResponse.Attributes?.QueueArn;
        return { QueueUrl, QueueArn };
    }
    catch (err) {
        throw new error_1.FaastError(err, "create sqs queue");
    }
}
exports.createSQSQueue = createSQSQueue;
/* istanbul ignore next  */
function processAwsErrorMessage(message) {
    let err = new error_1.FaastError(message);
    if (message?.match(/Process exited before completing/) ||
        message?.match(/signal: killed/)) {
        err = new error_1.FaastError({ cause: err, name: error_1.FaastErrorNames.EMEMORY }, "possibly out of memory");
    }
    else if (message?.match(/time/)) {
        err = new error_1.FaastError({ cause: err, name: error_1.FaastErrorNames.ETIMEOUT }, "timeout");
    }
    else if (message?.match(/EventAgeExceeded/)) {
        err = new error_1.FaastError({ cause: err, name: error_1.FaastErrorNames.ECONCURRENCY }, "concurrency limit exceeded");
    }
    return err;
}
exports.processAwsErrorMessage = processAwsErrorMessage;
async function receiveMessages(sqs, ResponseQueueUrl, metrics, cancel) {
    try {
        const MaxNumberOfMessages = 10;
        const request = sqs.receiveMessage({
            QueueUrl: ResponseQueueUrl,
            WaitTimeSeconds: 20,
            MaxNumberOfMessages,
            MessageAttributeNames: ["All"],
            AttributeNames: ["SentTimestamp"]
        });
        const response = await Promise.race([request.promise(), cancel]);
        if (!response) {
            request.abort();
            return { Messages: [] };
        }
        const { Messages = [] } = response;
        const { httpResponse } = response.$response;
        const receivedBytes = (0, shared_1.computeHttpResponseBytes)(httpResponse.headers);
        metrics.outboundBytes += receivedBytes;
        const inferredSqsRequestsReceived = countRequests(receivedBytes);
        const inferredSqsRequestsSent = (0, shared_1.sum)(Messages.map(m => countRequests(m.Body?.length ?? 1)));
        metrics.sqs64kRequests += inferredSqsRequestsSent + inferredSqsRequestsReceived;
        if (Messages.length > 0) {
            sqs.deleteMessageBatch({
                QueueUrl: ResponseQueueUrl,
                Entries: Messages.map(m => ({
                    Id: m.MessageId,
                    ReceiptHandle: m.ReceiptHandle
                }))
            })
                .promise()
                .catch(_ => { });
            metrics.sqs64kRequests++;
        }
        return {
            Messages: Messages.map(processIncomingQueueMessage).filter(shared_1.defined),
            isFullMessageBatch: Messages.length === MaxNumberOfMessages
        };
    }
    catch (err) {
        throw new error_1.FaastError(err, "receiveMessages");
    }
}
exports.receiveMessages = receiveMessages;
function processIncomingQueueMessage(m) {
    // AWS Lambda Destinations
    // (https://aws.amazon.com/blogs/compute/introducing-aws-lambda-destinations/)
    // are used to route failures to the response queue. These
    // messages are generated by AWS Lambda and are constrained to the format it
    // provides.
    const raw = (0, serialize_1.deserialize)(m.Body);
    if (raw.responseContext) {
        const message = raw;
        const snsMessage = message.requestPayload;
        const record = snsMessage.Records[0];
        const sCall = (0, serialize_1.deserialize)(record.Sns.Message);
        let error;
        const destinationError = message.responsePayload;
        if (destinationError) {
            error = processAwsErrorMessage(destinationError.errorMessage);
            error.stack = destinationError.stackTrace?.join("\n");
        }
        else {
            error = processAwsErrorMessage(message.requestContext.condition);
        }
        const executionId = message.requestContext.requestId;
        return {
            ...(0, wrapper_1.createErrorResponse)(error, {
                call: sCall,
                startTime: new Date(record.Sns.Timestamp).getTime(),
                executionId
            }),
            timestamp: new Date(message.timestamp).getTime()
        };
    }
    else {
        const message = raw;
        switch (message.kind) {
            case "promise":
            case "iterator":
                message.timestamp = Number(m.Attributes.SentTimestamp);
                break;
            case "cpumetrics":
                break;
            case "functionstarted":
                break;
            default: {
                console.warn(`Unknown message received from response queue`);
            }
        }
        return raw;
    }
}
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{ SNSEvent } from \"aws-lambda\";\nimport { SNS, SQS } from \"aws-sdk\";\nimport { FaastError, FaastErrorNames } from \"../error\";\nimport { log } from \"../log\";\nimport { Message, PollResult } from \"../provider\";\nimport { deserialize, serialize } from \"../serialize\";\nimport { computeHttpResponseBytes, defined, sum } from \"../shared\";\nimport { retryOp } from \"../throttle\";\nimport { createErrorResponse, FunctionCall } from \"../wrapper\";\nimport { AwsMetrics } from \"./aws-faast\";\n\nexport async function createSNSTopic(sns: SNS, Name: string) {\n    const topic = await sns.createTopic({ Name }).promise();\n    return topic.TopicArn!;\n}\n\nfunction countRequests(bytes: number) {\n    return Math.ceil(bytes / (64 * 1024));\n}\n\nexport async function sendResponseQueueMessage(\n    sqs: SQS,\n    QueueUrl: string,\n    message: Message\n) {\n    try {\n        const request = { QueueUrl, MessageBody: serialize(message) };\n        await sqs.sendMessage(request).promise();\n    } catch (err: any) {\n        log.warn(err);\n    }\n}\n\nexport function publishFunctionCallMessage(\n    sns: SNS,\n    TopicArn: string,\n    message: FunctionCall,\n    metrics: AwsMetrics\n) {\n    const serialized = serialize(message);\n    metrics.sns64kRequests += countRequests(serialized.length);\n    return retryOp(\n        (err, n) => n < 6 && err?.message?.match(/does not exist/),\n        () =>\n            sns\n                .publish({\n                    TopicArn,\n                    Message: serialized\n                })\n                .promise()\n    );\n}\n\nexport async function createSQSQueue(QueueName: string, VTimeout: number, sqs: SQS) {\n    try {\n        const createQueueRequest: SQS.CreateQueueRequest = {\n            QueueName,\n            Attributes: {\n                VisibilityTimeout: `${VTimeout}`\n            }\n        };\n        const response = await sqs.createQueue(createQueueRequest).promise();\n        const QueueUrl = response.QueueUrl!;\n        const arnResponse = await sqs\n            .getQueueAttributes({ QueueUrl, AttributeNames: [\"QueueArn\"] })\n            .promise();\n        const QueueArn = arnResponse.Attributes?.QueueArn;\n        return { QueueUrl, QueueArn };\n    } catch (err: any) {\n        throw new FaastError(err, \"create sqs queue\");\n    }\n}\n\n/* istanbul ignore next  */\nexport function processAwsErrorMessage(message: string): Error {\n    let err = new FaastError(message);\n    if (\n        message?.match(/Process exited before completing/) ||\n        message?.match(/signal: killed/)\n    ) {\n        err = new FaastError(\n            { cause: err, name: FaastErrorNames.EMEMORY },\n            \"possibly out of memory\"\n        );\n    } else if (message?.match(/time/)) {\n        err = new FaastError({ cause: err, name: FaastErrorNames.ETIMEOUT }, \"timeout\");\n    } else if (message?.match(/EventAgeExceeded/)) {\n        err = new FaastError(\n            { cause: err, name: FaastErrorNames.ECONCURRENCY },\n            \"concurrency limit exceeded\"\n        );\n    }\n    return err;\n}\n\nexport async function receiveMessages(\n    sqs: SQS,\n    ResponseQueueUrl: string,\n    metrics: AwsMetrics,\n    cancel: Promise<void>\n): Promise<PollResult> {\n    try {\n        const MaxNumberOfMessages = 10;\n        const request = sqs.receiveMessage({\n            QueueUrl: ResponseQueueUrl!,\n            WaitTimeSeconds: 20,\n            MaxNumberOfMessages,\n            MessageAttributeNames: [\"All\"],\n            AttributeNames: [\"SentTimestamp\"]\n        });\n\n        const response = await Promise.race([request.promise(), cancel]);\n        if (!response) {\n            request.abort();\n            return { Messages: [] };\n        }\n\n        const { Messages = [] } = response;\n        const { httpResponse } = response.$response;\n        const receivedBytes = computeHttpResponseBytes(httpResponse.headers);\n        metrics.outboundBytes += receivedBytes;\n        const inferredSqsRequestsReceived = countRequests(receivedBytes);\n        const inferredSqsRequestsSent = sum(\n            Messages.map(m => countRequests(m.Body?.length ?? 1))\n        );\n        metrics.sqs64kRequests += inferredSqsRequestsSent + inferredSqsRequestsReceived;\n        if (Messages.length > 0) {\n            sqs.deleteMessageBatch({\n                QueueUrl: ResponseQueueUrl!,\n                Entries: Messages.map(m => ({\n                    Id: m.MessageId!,\n                    ReceiptHandle: m.ReceiptHandle!\n                }))\n            })\n                .promise()\n                .catch(_ => {});\n            metrics.sqs64kRequests++;\n        }\n        return {\n            Messages: Messages.map(processIncomingQueueMessage).filter(defined),\n            isFullMessageBatch: Messages.length === MaxNumberOfMessages\n        };\n    } catch (err: any) {\n        throw new FaastError(err, \"receiveMessages\");\n    }\n}\n\ninterface LambdaDestinationError {\n    errorMessage: string;\n    errorType?: string;\n    stackTrace?: string[];\n}\n\ninterface LambdaDestinationMessage {\n    version: string;\n    timestamp: string;\n    requestContext: {\n        requestId: string;\n        functionArn: string;\n        condition: \"RetriesExhausted\" | \"Success\";\n        approximateInvokeCount: number;\n    };\n    requestPayload: object;\n    responseContext: {\n        statusCode: number;\n        executedVersion: string;\n        functionError?: string;\n    };\n    responsePayload: LambdaDestinationError | object;\n}\n\nfunction processIncomingQueueMessage(m: SQS.Message): Message | void {\n    // AWS Lambda Destinations\n    // (https://aws.amazon.com/blogs/compute/introducing-aws-lambda-destinations/)\n    // are used to route failures to the response queue. These\n    // messages are generated by AWS Lambda and are constrained to the format it\n    // provides.\n    const raw = deserialize(m.Body!);\n    if (raw.responseContext) {\n        const message = raw as LambdaDestinationMessage;\n        const snsMessage = message.requestPayload as SNSEvent;\n        const record = snsMessage.Records[0];\n        const sCall: FunctionCall = deserialize(record.Sns.Message);\n        let error: Error | undefined;\n        const destinationError = message.responsePayload as LambdaDestinationError;\n        if (destinationError) {\n            error = processAwsErrorMessage(destinationError.errorMessage);\n            error.stack = destinationError.stackTrace?.join(\"\\n\");\n        } else {\n            error = processAwsErrorMessage(message.requestContext.condition);\n        }\n        const executionId = message.requestContext.requestId;\n        return {\n            ...createErrorResponse(error, {\n                call: sCall,\n                startTime: new Date(record.Sns.Timestamp).getTime(),\n                executionId\n            }),\n            timestamp: new Date(message.timestamp).getTime()\n        };\n    } else {\n        const message = raw as Message;\n        switch (message.kind) {\n            case \"promise\":\n            case \"iterator\":\n                message.timestamp = Number(m.Attributes!.SentTimestamp);\n                break;\n            case \"cpumetrics\":\n                break;\n            case \"functionstarted\":\n                break;\n            default: {\n                console.warn(`Unknown message received from response queue`);\n            }\n        }\n        return raw;\n    }\n}\n"]}