function updatePreviousConnectionData()

in cloudformationTemplates/urlPreviewForAsyncChat/js/startChatContact.js [135:165]

29 lines of code
3 McCabe index (conditional complexity)


function updatePreviousConnectionData(previousContactId, currentContactId) {
    if (previousContactId == "INITIAL_CHAT") {
        return new Promise( function (resolve, reject) {
            resolve("Initial chat, not updating.");
        });
    }

    return new Promise(function (resolve, reject) {
        console.log("Setting contactId (" + previousContactId + ") to have a next contact id of: " + currentContactId);
        var params = {
            TableName: process.env.CHAT_DATA_TABLE,
            Key: {
                'contactId': previousContactId
            },
            UpdateExpression: 'set nextContactId = :next',
            ExpressionAttributeValues: {
                ':next' : currentContactId
            }
        };

        docClient.update(params, function(err, results) {
            if (err) {
                console.error("Unable to update previous contact data. Error:", JSON.stringify(err, null, 2));
                reject();
            } else {
                console.log("Update succeeded.");
                resolve("Success!");
            }
        });
    });
}