Match Engine

Lambda function responsible to match buy and sale orders

How to test ?

docker-compose up

• The file test has a BUY event, to test sales with match potential must be created.
• The creation of SALES can be done through the API or using aws cli

Here we have an example dynamoDb item em in ExpressionAttributeValues as is accepted by dynamoDb

{
    "operationType": {"S": "SALE"},
    "id": {"S": "2233998|cd8e90d4-32b0-40f7-a3a1-8be706474913"},
    "quantity": {"N": "200"},
    "value": {"N": "1334.99"},
    "hash": {"S": "279ba23c396ea563f33da2bcd55dc99d"},
    "operationStatus": {"S": "IN_TRADE"},
    "userId": {"N": "2233998"},
    "audit": {"M": 
        {
            "createdAt": {"S": "2022-03-30T18:22:38.625Z"},
            "updatedAt": {"S": "2022-03-30T18:22:38.625Z"},
            "updatedBy": {"S": "API"}
        }
    },
    "traceId": {"S": "cd8e90d4-32b0-40f7-a3a1-8be706474913"}
}

If you prefer, it can be done by the API using this example according to the documentation !

If there are no records, the function is ready, just follow it on the console. I put the support logs to make testing easier :) With the records properly created we can run the test and follow the lambda logs in the console.

Run using ide in file > main_test.go