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While working in Microservices concept, you generally need to check CloudWatch logs in deep to identify the errors and debugging your code. So let's see how we can check logs insight of particular lambda. AWS CloudWatch - Education Funda Recent Logs For recent logs you can directly go into Lambda inside it monitor section. Lambda Logs Monitor Filter Logs Old Logs Insights Go down in Monitor logs and go to Recent Invocations section, on top right sight you can see 3 dots for action: Go in Logs Insight for Lambda Next screen will open like below in which you can run query and after that in graph you can select specific date and time logs very easily. Thanks for reading this blog, I hope it is helpful for you, please share your feedback in comments section guys. <> Happy Coding </> 💻

Let's see how can we connect with oracle db in node js project or lambda Oracle DB - Education Funda First step is to install oracle db package with below command: ~ npm i  oracledb Let's see the code for connecting with oracle db for lambda handler: const oracledb = require ( "oracledb" ); oracledb . outFormat = oracledb . OUT_FORMAT_OBJECT ; exports . handler = async ( event , context , callback ) => { let connection ; const uatConnObj = { user : "db_user_name" , password : "db_pass" , connectString : "ip:port/db" , poolMax : 1 , poolMin : 0 , poolIncrement : 10 , }; const prodConnObj = { user : "db_user_name" , password : "db_pass" , connectString : "ip:port/db" , poolMax : 1 , poolMin : 0 , poolIncrement : 10 , }; try { await oracledb . createPool ( prodConnObj ); let dbPool = oracledb . getPool (); ...

While doing the development everyones know that no one can remember all of the queries and commands. So in the blog I am covering most used Mongo DB queries. Mongo DB Queries By Education Funda Mongo DB Queries For Studio 3T and In Your Code Fetch Queries: db . getCollection ( "collectionName" ). find ( { FILTER_COLUMN_NAME : 'VALUE' }, { PROJECTION_COLUMN_NAME_1 : 1 , PROJECTION_COLUMN_NAME_2 : 1 } ) Get Duplicates Records db . getCollection ( "collectionName" ). aggregate ([ { "$group" : { "_id" : "$DUP_COL_NAME" , "count" : { "$sum" : 1 } } }, { "$match" : { "_id" : { "$ne" : null } , "count" : { "$gt" : 1 } } }, { "$project" : { "DUP_COL_NAME" : "$_id" , "_id" : 0 } } ]) Count Query db . getCollection ( "collectionName" ). countDocuments ( { FILTER_COL_1 : ...

a AWS S3 Bucket - Education Funda Create Policy Add ARN Create User as Allow and Create Role ? Add s3-user-policy as permission Now go into user and create access and secret key

When we are working many times we have a requirements where we need to convert list of data from excel or anything to arrays so that we can filter data from DB with in array conditions. Python Programming Step 1: You should have Python installed in your system to run it. Step 2: Create a Directory and Open that directory in VS Code Editor. Step 3: Create 1 file any-name.py. Step 4: Put below codes in created file: with open ( 'list.txt' , 'r' ) as f : content = f . read (). split ( " \n " ) for i in range ( len ( content )): contentLine = content [ i ] if len ( contentLine ) < 10 : print ( contentLine ) content [ i ] = contentLine . rjust ( 10 , '0' ) with open ( 'array.txt' , 'w' ) as f : f . write ( '[" {} "]' . format ( '", "' . join ( content ))) Step 5: Now create 2 files list.txt and array.txt . Step 6: Put some list of any da...

In This Blog We Will See Complete Guide For Using Joins With Lookup in Mongoose MongoDB Mongoose - Education Funda Simply in MongoDB Mongoose we can use Aggregate Query with $ lookup to get data basis upon JOINS. such as below: await MainModel . aggregate ([ { $match : { "COLUMN_NAME" : value } }, { $lookup : { from : 'relation_collection_name' , localField : 'relation_collection_primary_key' , foreignField : 'this_table_foreign_key' , as : 'ALIASING' } } ]); With above query new column added with ALIASING in which relation collection data will also come. To get data in Object format instead of Array we can use $unwind like below: await MainModel . aggregate ([ { $match : { "COLUMN_NAME" : value } }, { $lookup : { from : 'relation_collection_name' , ...

How To Create and Deploy Your First Lambda Function on AWS Serverless Application Modal AWS SAM - Education Funda Create Your SAM Application Software Requirements: AWS CLI ( Reference Link ) SAM CLI ( Reference Link ) Docker ( Reference Link ) AWS Serverless Architecture - Education Funda Now All Will Happen With Command Line Interface Now open Terminal and Go to your directory in which you want to create your project. $ sam init  #hit enter this command ~ This will appear 2 option, 1 AWS Quick Start and 2 Custom Template For making things simple you can 1 at moment. ~ Now you need to select template, at moment you can select Hello World Example. ~ Now it will ask for programming language Python by default and you can select other as well such as Node.js, Java, etc. ~ Now you can choose ZIP option. ~ Now it will ask starter template, you can select anyone from that Hello World Example. ~ X-Ray tracing you can enable so select Y. ~ Enable Cloud Watch now with select Y. ~ Now it ...