AWS Lambda test run failure - aws-lambda

Question

I'm currently learning AWS Lambda, and I'm trying to deploy a Lambda function whose inputs would be stored in a DynamoDB table(if that makes sense?), we were already given a source code to use and a separate code to test it.
I've checked both codes, refactored them, and started testing but somehow my results still return "failed" results. My code source is this:
const randomBytes = require('crypto').randomBytes;
const AWS = require('aws-sdk');
const ddb = new AWS.DynamoDB.DocumentClient();
const fleet = [
{
Name: 'Bucephalus',
Color: 'Golden',
Gender: 'Male',
},
{
Name: 'Shadowfax',
Color: 'White',
Gender: 'Male',
},
{
Name: 'Rocinante',
Color: 'Yellow',
Gender: 'Female',
},
];
exports.handler = (event, context, callback) => {
if (!event.requestContext.authorizer) {
errorResponse('Authorization not configured', context.awsRequestId, callback);
return;
}
const rideId = toUrlString(randomBytes(16));
console.log('Received event (', rideId, '): ', event);
// Because we're using a Cognito User Pools authorizer, all of the claims
// included in the authentication token are provided in the request context.
// This includes the username as well as other attributes.
const username = event.requestContext.authorizer.claims['cognito:username'];
// The body field of the event in a proxy integration is a raw string.
// In order to extract meaningful values, we need to first parse this string
// into an object. A more robust implementation might inspect the Content-Type
// header first and use a different parsing strategy based on that value.
const requestBody = JSON.parse(event.body);
const pickupLocation = requestBody.PickupLocation;
const unicorn = findUnicorn(pickupLocation);
recordRide(rideId, username, unicorn).then(() => {
// You can use the callback function to provide a return value from your Node.js
// Lambda functions. The first parameter is used for failed invocations. The
// second parameter specifies the result data of the invocation.
// Because this Lambda function is called by an API Gateway proxy integration
// the result object must use the following structure.
callback(null, {
statusCode: 201,
body: JSON.stringify({
RideId: rideId,
Unicorn: unicorn,
UnicornName: unicorn.Name,
Eta: '30 seconds',
Rider: username,
}),
headers: {
'Access-Control-Allow-Origin': '*',
},
});
}).catch((err) => {
console.error(err);
// If there is an error during processing, catch it and return
// from the Lambda function successfully. Specify a 500 HTTP status
// code and provide an error message in the body. This will provide a
// more meaningful error response to the end client.
errorResponse(err.message, context.awsRequestId, callback);
});
};
function findUnicorn(pickupLocation) {
console.log('Finding unicorn for ', pickupLocation.Latitude, ', ', pickupLocation.Longitude);
return fleet[Math.floor(Math.random() * fleet.length)];
}
function recordRide(rideId, username, unicorn) {
return ddb.put({
TableName: 'AWSIES-jeremie.agravante',
Item: {
RideId: rideId,
User: username,
Unicorn: unicorn,
UnicornName: unicorn.Name,
RequestTime: new Date().toISOString(),
},
}).promise();
}
function toUrlString(buffer) {
return buffer.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=/g, '');
}
function errorResponse(errorMessage, awsRequestId, callback) {
callback(null, {
statusCode: 500,
body: JSON.stringify({
Error: errorMessage,
Reference: awsRequestId,
}),
headers: {
'Access-Control-Allow-Origin': '*',
}
});
}
And the test code is this:
{
"path": "/ride",
"httpMethod ": "POST",
"headers": {
"Accept": "*/*",
"Authorization": "eyJraWQiOiJLTzRVMWZs",
"content-type": "application/json; charset=UTF 8"
},
"queryStringParameters ":"null",
"pathParameters ":"null",
"requestContext ": {
"authorizer": {
"claims": {
"cognito:username ": "the_username"
}
}
},
"body": "{\"PickupLocation \":
{\"Latitude\":47.6174755835663,\"Longitude\":-122.28837066650185}}"
}
The error that it throws me is this:
Test Event Name:testRequestEvent
Response
{
"errorType": "Runtime.UserCodeSyntaxError",
"errorMessage": "SyntaxError: Unexpected end of input",
"trace": [
"Runtime.UserCodeSyntaxError: SyntaxError: Unexpected end of input",
" at _loadUserApp (/var/runtime/UserFunction.js:98:13)",
" at Object.module.exports.load (/var/runtime/UserFunction.js:140:17)",
" at Object.<anonymous> (/var/runtime/index.js:43:30)",
" at Module._compile (internal/modules/cjs/loader.js:1072:14)",
" at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)",
" at Module.load (internal/modules/cjs/loader.js:937:32)",
" at Function.Module._load (internal/modules/cjs/loader.js:778:12)",
" at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)",
" at internal/main/run_main_module.js:17:47"
]
}
Function Logs
START RequestId: 2f5c85af-632f-4fa2-8a32-46547e84fe64 Version: $LATEST
2021-11-18T01:39:55.279Z undefined ERROR Uncaught Exception
{"errorType":"Runtime.UserCodeSyntaxError","errorMessage":"SyntaxError: Unexpected end of
input","stack":["Runtime.UserCodeSyntaxError: SyntaxError: Unexpected end of input"," at
_loadUserApp (/var/runtime/UserFunction.js:98:13)"," at Object.module.exports.load
(/var/runtime/UserFunction.js:140:17)"," at Object.<anonymous>
(/var/runtime/index.js:43:30)"," at Module._compile
(internal/modules/cjs/loader.js:1072:14)"," at Object.Module._extensions..js
(internal/modules/cjs/loader.js:1101:10)"," at Module.load
(internal/modules/cjs/loader.js:937:32)"," at Function.Module._load
(internal/modules/cjs/loader.js:778:12)"," at Function.executeUserEntryPoint [as runMain]
(internal/modules/run_main.js:76:12)"," at internal/main/run_main_module.js:17:47"]}
2021-11-18T01:39:56.826Z undefined ERROR Uncaught Exception
{"errorType":"Runtime.UserCodeSyntaxError","errorMessage":"SyntaxError: Unexpected end of input","stack":["Runtime.UserCodeSyntaxError: SyntaxError: Unexpected end of input"," at _loadUserApp (/var/runtime/UserFunction.js:98:13)"," at Object.module.exports.load (/var/runtime/UserFunction.js:140:17)"," at Object.<anonymous> (/var/runtime/index.js:43:30)"," at Module._compile (internal/modules/cjs/loader.js:1072:14)"," at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)"," at Module.load (internal/modules/cjs/loader.js:937:32)"," at Function.Module._load (internal/modules/cjs/loader.js:778:12)"," at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)"," at internal/main/run_main_module.js:17:47"]}
END RequestId: 2f5c85af-632f-4fa2-8a32-46547e84fe64
REPORT RequestId: 2f5c85af-632f-4fa2-8a32-46547e84fe64 Duration: 1714.81 ms Billed
Duration: 1715 ms Memory Size: 128 MB Max Memory Used: 12 MB
Unknown application error occurred
Runtime.UserCodeSyntaxError
Request ID
2f5c85af-632f-4fa2-8a32-46547e84fe64
I'm sorry if this is really long, but I could really use a hand in this one. I keep looking for syntax errors even found some bugs that my instructors have purposely snuck in to test us, but I guess my beginner skills are not enough at the moment. Thanks to anyone who could help.