Looking to become an expert on AWS Lambda? Check out my new course: AWS Lambda - A Practical Guide www.udemy.com/course/aws-lambda-a-practical-guide/?referralCode=F6D1A50467E579C65372
As an AWS engineer I have to say, very good tutorial video. Why such a channel only has 21k sub??? For begineers, your videos are better than our official ones.
get this ...{"transactionId": "5", "transactionType": "'PURCHASE'", "transactionAmount": "500", "message": "xyz says HELLO"} .... finally understand what api gateway/lambda is doing....great job AWS Simplified!
Great tutorial! this is just memo for other beginners. ●can't test in lambda console? try something like this ↓ { "queryStringParameters":{ "transactionId": "5", "type": "purchase", "amount": "100" } } ●internal server error? you need equal in line 25 ↓ responseObject['headers'] = {} and check typos . Thanks!
Great tutorial. Explained better than even AWS official ones. One suggestion: Next time show how you debug the error also. I get that you use cloud trail here but it'll still be useful to newcomers
Thanks a lot🙏🙏 Before watching this, I watched a couple of videos on lambda function, but still I couldn't understand what the hell lambda function is, you made it very clear...
Great video, no only this but all the others in the channel too. I dont like the sounds with the mouth when starting new words, but anyway best AWS channel in youtube so far.
Man but like how good is this video?? You're insane! Thanks a lot! I was looking for something like this for a small learning project I have in mind with flutter and aws (just to learn aws because tbh its pretty daunting to me). Thanks a lot again!!
Great tutorial. Helped me on how to handle event with python. I am using a Lambda function to perform Geocode and REST API for client to invoke the API
Thanks man. I am new to Cloud but somehow I managed to secure somewhat senior position as AWS DevOps Engineer and now facing the music. I came across a similar requirement, Thanks for the help Sir
Excellent Tutorial. I'm currently learning how to use AWS Lambda and AWS API gateway to create a serverless USSD with Africa's Talking using python. Ideally I want to automate the entire process using Terraform.
I am using the same code that yu gave .. but facing key error. Error: { "errorMessage": "'queryStringParameters'", "errorType": "KeyError", "stackTrace": [ [ "/var/task/lambda_function.py", 9, "lambda_handler", "transactionId = event['queryStringParameters']['transactionId']" ] ] } Input: transactionId=1&type=abc&amount=123
Excellent tutorial! Thank you very much! I am enjoying your channel a lot. I'm just starting out with AWS but I'm super curious about how things work and you're becoming my one stop shopping channel! Cheers!
OMG, thank you sooooo much for this video!!! Building a simple website for my wedding in a few months and wanted to be able for folks to RSVP online and the data loaded to a dynamoDB server to keep everything organized. Spent literally all day yesterday going thru guides and documentation with no success. Would just be curious if you would need to do anything differently for a post method instead of get. Web design is not my forte, which is why I wanted this project to challenge myself. Thanks again!!!
Hi Kyle! Thanks for watching and congratulations on your wedding. I'm also getting married soon and hope you're able to have a happy day despite covid. In terms of your question, the only difference is that you would select the POST method during the api creation in API gateway. Also, the location of the parameters being passed into your lambda function will change (they will likely no longer be in the query param's field, but instead in the 'body'). The quickest way to find out where is just to console.log the input object (event) and find out where in the object the param's are being passed. Hope this helps and feel free to reach out if you have any followup Q's.
Getting the following error when I tested the lambda function (without using the API gateway endpoint): { "errorMessage": "'queryStringParameters'", "errorType": "KeyError", "stackTrace": [ [ "/var/task/lambda_function.py", 7, "lambda_handler", "transactionId = event['queryStringParameters']['transactionId']" ] ] Any insight on how to fix this? Not sure how everyone is able to use the same code... Seems like there is an issue with the code itself.
Hi there, have you tried to print out the event that has been passed into the lambda function to see if the input contains query string parameter's. It seems like your functions code is trying to access that field but it is not present in the event. One other possibility is that you created a post API instead of a GET API. This will result in the payload been inside the body of the request instead of query string parameter's. Hope this helps.
In our use case, we built an API Gateway to call a collection of microservices, from lambda(new code) & HTTP (legacy code). It works well, but I'd advise anyone working on a serverless architecture to look into how to keep lambdas "warm"
Great video. One doubt I faced at work. How do you choose between having one big lambda function with Flask Python code internally handling all the routing for different endpoint v/s one seperate Python lambda(without Flask) for each Api gateway resource? Which is a better design and better performing?
I love this, this is very straight forward. But as a beginner in the field of AWS I just want a clarification. The method you used, why GET and not POST method?
Hi Venkatesh, You have a very fine eye :) I believe I corrected this during the video editing process. The code link should contain the corrected code. Daniel
Straight to the point. Thank you. I was wondering how we could add an authentication to the request as well. My request returns Missing Authentication Token. I don't want to make the API public as it is sending a separate request to a paid API.
Thanks for the video, it actually helped in solving my entire problem. One question though, here the transactionResponse is like 1:1 mapping. how bout if function has a loop, and it returns more than 1 value, in that case how to get multiple values in a response object
I create my APIGs via terraform, the concept of stages feels pointless as I have my production and staging environments on different AWS accounts. I do have multiple stage environments on one account; dev, qat, uat, pen. But these are setup as different resources in terraform where I use the workspaces feature to divide the different stages. Do you agree that stages feel useless for the described use case? Any advise is appreciated.
Hi, Thank you, this de-mystified some of the profoundness of the topic! Very well structured and explained... What is throwing me off, is whether there is a standard structure protocol for the event[] object? Similarly, why cant a straighforward JSON response be sent over through the lambda? Again, is there a standard structure for this responseObject[]? How and where is this responseObject declared? Why can't the lamda return something like so: return { 'statusCode': 200, 'body': json.dumps('Hello from Lambda!'), 'Name1':event['queryStringParameters']['param1'] 'Name2':event['queryStringParameters']['param2'] }
Looking to become an expert on AWS Lambda? Check out my new course: AWS Lambda - A Practical Guide
www.udemy.com/course/aws-lambda-a-practical-guide/?referralCode=F6D1A50467E579C65372
Sorry this Course is not available in udemy. :)
As an AWS engineer I have to say, very good tutorial video. Why such a channel only has 21k sub??? For begineers, your videos are better than our official ones.
Thanks for your support . The subscribe count jump to 53k+ ...👍
Now its 117K. Super fast.
now its 149k
254k 😮
@@zackpacked subs, not views
get this ...{"transactionId": "5", "transactionType": "'PURCHASE'", "transactionAmount": "500", "message": "xyz says HELLO"} .... finally understand what api gateway/lambda is doing....great job AWS Simplified!
Great to hear I was able to help!
This dude is way more Good then actual AWS guys. And video is super sharp to the point (Y) Loved it
Thank you so much for your kind words!
Wow. Short, complete, accurate and useful. You are remarkably good at making instructional videos. Thank you.
Thanks for the kind words Faithin!
This is the best exemplification I have ever seen so far. I could not find any other resources better than this channel.
Great tutorial!
this is just memo for other beginners.
●can't test in lambda console?
try something like this ↓
{
"queryStringParameters":{
"transactionId": "5",
"type": "purchase",
"amount": "100"
}
}
●internal server error?
you need equal in line 25 ↓
responseObject['headers'] = {}
and check typos
.
Thanks!
Thank you for the catch!
I love 10 mins tutorial and this one is perfect 10 min tutorial. Thanks.
Thanks so much kishor!
No stories , to the point , Thank you ! Subscribed
Thanks dileep! And welcome to the channel :)
Thanks a ton for your tutorial here. I just needed a quick rundown and this is exactly what I needed. Quick and concise.
Glad it helped!
Great work! Appreciate you showing the event structure right at the beginning which is usually skipped by many.
Love this video. If only they gave examples like that in the official documentation, instead of just dry theory
Thanks for the kind words heikg. I'm glad you found it helpful :)
It could use updating, as AWS has changed its API Gateway UI substantially. GREAT WORK, THANKS!
Thanks for pointing this out Kent! Time for a new video :)
Go for it! If you need any help, I volunteer!
It was great to see and understand the basic flow with API Gateway + Lambda, thanks.
Glad it was helpful!
Great tutorial. Explained better than even AWS official ones.
One suggestion: Next time show how you debug the error also. I get that you use cloud trail here but it'll still be useful to newcomers
Thank you Harsha for the kind words and the feedback!
@@BeABetterDev What was the fix to that error anyway?
Very efficient, straight to the point, extremely helpful. Thank you.
Great video! Thanks for demonstrating API Gateway + Lambda integration
Glad you enjoyed Wes.
Thanks a lot🙏🙏
Before watching this, I watched a couple of videos on lambda function, but still I couldn't understand what the hell lambda function is, you made it very clear...
Great video, no only this but all the others in the channel too. I dont like the sounds with the mouth when starting new words, but anyway best AWS channel in youtube so far.
Thanks for the feedback!
Man but like how good is this video?? You're insane! Thanks a lot! I was looking for something like this for a small learning project I have in mind with flutter and aws (just to learn aws because tbh its pretty daunting to me). Thanks a lot again!!
Thank you so much for such a kind comment, I really appreciate it!
Superb intro to using the API gateway, good tutoring skills!
Thanks phillip!
thanks man for this amazing video
it helped me in completing my internship task
keep up the good work
Very simple explanation to the point .
Good one. To the point. Simple. Best way to dive in.
Thanks Prasad!
Thank you bro for keeping it clean and simple. I love it.
Thanks Muse! Really appreciate the kind words.
Short and Simple. Best tutorials. Keep Teaching :). Thank you
You are very welcome!
Great tutorial. Helped me on how to handle event with python. I am using a Lambda function to perform Geocode and REST API for client to invoke the API
Glad it helped Jiyong!
What a fantastic tutorial! Great job!
Thank you! Cheers!
Thanks man. I am new to Cloud but somehow I managed to secure somewhat senior position as AWS DevOps Engineer and now facing the music. I came across a similar requirement, Thanks for the help Sir
Amazingly great and simple to get point. Salute
Thank you so much for your kind words!
Wow, everything I needed put together in one video!! Thanks alot bro!
You are very welcome didi!
Thanks so much for this awesome tutorial! Really clear and well-paced.
You're very welcome!
Excellent Tutorial. I'm currently learning how to use AWS Lambda and AWS API gateway to create a serverless USSD with Africa's Talking using python. Ideally I want to automate the entire process using Terraform.
thanks. simple enough to get started with API gateway and integration points
I am using the same code that yu gave .. but facing key error.
Error:
{
"errorMessage": "'queryStringParameters'",
"errorType": "KeyError",
"stackTrace": [
[
"/var/task/lambda_function.py",
9,
"lambda_handler",
"transactionId = event['queryStringParameters']['transactionId']"
]
]
}
Input: transactionId=1&type=abc&amount=123
Gracias, me has salvado la vida compadre, desde Ecuador.
Thanks Andres!
Excellent tutorial! Thank you very much! I am enjoying your channel a lot. I'm just starting out with AWS but I'm super curious about how things work and you're becoming my one stop shopping channel! Cheers!
As others already mentioned --- what's the fix for the line 25 syntax error that you said you'd get back to?
OMG, thank you sooooo much for this video!!! Building a simple website for my wedding in a few months and wanted to be able for folks to RSVP online and the data loaded to a dynamoDB server to keep everything organized. Spent literally all day yesterday going thru guides and documentation with no success. Would just be curious if you would need to do anything differently for a post method instead of get. Web design is not my forte, which is why I wanted this project to challenge myself. Thanks again!!!
Hi Kyle! Thanks for watching and congratulations on your wedding. I'm also getting married soon and hope you're able to have a happy day despite covid.
In terms of your question, the only difference is that you would select the POST method during the api creation in API gateway. Also, the location of the parameters being passed into your lambda function will change (they will likely no longer be in the query param's field, but instead in the 'body'). The quickest way to find out where is just to console.log the input object (event) and find out where in the object the param's are being passed.
Hope this helps and feel free to reach out if you have any followup Q's.
When I go to url, it only shows me the message which is "Hello from Lambda!" instead of showing all the json. Does anyone know how to fix this?
Thanks for the tutorial. This helped me resolve an error I was getting.
Glad it helped!
Simple and Effective, as always!!
Woow it is very nice explanation with example .. it help me to understand API with Lambda..
Thanks
You are most welcome
That was a concise tutorial. Thank you
Getting the following error when I tested the lambda function (without using the API gateway endpoint):
{
"errorMessage": "'queryStringParameters'",
"errorType": "KeyError",
"stackTrace": [
[
"/var/task/lambda_function.py",
7,
"lambda_handler",
"transactionId = event['queryStringParameters']['transactionId']"
]
]
Any insight on how to fix this? Not sure how everyone is able to use the same code... Seems like there is an issue with the code itself.
Hi there, have you tried to print out the event that has been passed into the lambda function to see if the input contains query string parameter's. It seems like your functions code is trying to access that field but it is not present in the event. One other possibility is that you created a post API instead of a GET API. This will result in the payload been inside the body of the request instead of query string parameter's. Hope this helps.
to-the-point. Thx. Keep up the good work!
Thanks Lio!
Good tutorial. Tested and it works
Very well explainations. Good for a starting point. Thanks a lot.
Great explanation and good demo
Best Tutorial. You made it so simple. Thank You
Well Explained. Simply Awesome. :)
Thanks a lot 😊
Wow wow wow, made it very easy and understandable. thanks
You are welcome 😊
NIce tutorial on api and lamda function
Thanks Gordon!
Thanks a lot, this was really helpful!!!!! Have a nice day :)
You're very welcome paul, and you too!
Great explanation
Glad it was helpful!
Nice. Just in time. I just got done with Fast API.
In our use case, we built an API Gateway to call a collection of microservices, from lambda(new code) & HTTP (legacy code). It works well, but I'd advise anyone working on a serverless architecture to look into how to keep lambdas "warm"
Good advice Derek, Provisioned Concurrency is a life saver!
a cool little trick to use if you want to print a variable name and its value is to do (with transaction_id as example): print(f'{transaction_id=}')
Thanks for this cool tip Felix!
Awesome video..!! I am planning to create ETL data pipes using lambda + API gateway and then use step functions or MWAA to orchestrate the Lambda.
Nice and fast. Thanks.
You're very welcome Raul!
To the point video. Appreciate it.
Glad it was helpful!
very well explained . Thanks for the video
Great video. One doubt I faced at work. How do you choose between having one big lambda function with Flask Python code internally handling all the routing for different endpoint v/s one seperate Python lambda(without Flask) for each Api gateway resource? Which is a better design and better performing?
Great stuff!! Thanks a lot for the overview!!👍🏼
Thanks sanket!
Great video. One small point. You mentioned about a syntax error in line 25, but doesn’t address that later in the video.
What was the actual fix to that error anyway?
@@timothyle4820 he missed out an equals character before the empty dictionary. I think he simply fixed it off screen.
@@timothyle4820 Just add the = symbol before the {}
Let me try ,..happy to get this video
Thanks Sateesh. Were you able to create your API?
thanks for sharing...it was really helpful.
You're very welcome
Thank you so much! This was tremendously helpful!
You're so welcome!
Excellent work
Thank you! Cheers!
Well presented. Would be good to see the API Gateway raise an event to Event bridge and then Event bridge match to the Lambda and return the same way.
I love this, this is very straight forward. But as a beginner in the field of AWS I just want a clarification. The method you used, why GET and not POST method?
Really ur videos r so good
Thank you so much 😀
Great video super insightful thanks!
Fantastic video, many thanks!
Great job with the video
Thanks!
Great start, thank you for the video. Just asking, how did it worked for you without a = in responseObject['headers'] = {}?
Hi Venkatesh,
You have a very fine eye :) I believe I corrected this during the video editing process. The code link should contain the corrected code.
Daniel
Splendid 👌more videos please
Coming soon!
Magnifique ! thanks for this tutorial
Nice video
Thank you!
Very nice tutorial. New subscriber here :)
Thanks Brad! Welcome to the channel :)
Wow! It was simple! Thanks.
Glad it helped!
Straight to the point. Thank you. I was wondering how we could add an authentication to the request as well. My request returns Missing Authentication Token. I don't want to make the API public as it is sending a separate request to a paid API.
Great video!
Great video! Looks like queryStringParameters doesnt work in AWS with the new Python 3.10. Any ideas how to correct this?
Thanks, great content!
Thanks no bug!
@@BeABetterDev 😆
Cool video but I get an internal server error saying it doesn't recognise 'queryStringParameters' I have no idea how to fix it after a few hours
Hi there, did you use a GET method ?
Thanks! Very helpful.
You're welcome!
Thank you for this one
How would a client access this programmatically?
brilliant! are you using vim keybindings in sublime ? I would love to see some vim tuts aswell
does anyone know how to get vim in sublime???
Thanks for the video, it actually helped in solving my entire problem.
One question though, here the transactionResponse is like 1:1 mapping. how bout if function has a loop, and it returns more than 1 value, in that case how to get multiple values in a response object
You can create several key value pairs in json. You could also consider using a list as the value in json.
Shouldn't line 20 in the code be responseObject['headers'] = {}?
I create my APIGs via terraform, the concept of stages feels pointless as I have my production and staging environments on different AWS accounts.
I do have multiple stage environments on one account; dev, qat, uat, pen. But these are setup as different resources in terraform where I use the workspaces feature to divide the different stages.
Do you agree that stages feel useless for the described use case? Any advise is appreciated.
Great video. But how to protect this api endpoint?
Hi Manjunath! Great question! I actually have a new video coming out on this exact topic in the next week or so. Stay tuned!
I think there is a typo in responseObject[‘headers’] {}
Thanks so much.
You're welcome!
Informative video : how about also including how to troubleshoot errors . Get a "message" : "Internal server error" when hitting the API URL
Hi, Thank you, this de-mystified some of the profoundness of the topic! Very well structured and explained... What is throwing me off, is whether there is a standard structure protocol for the event[] object? Similarly, why cant a straighforward JSON response be sent over through the lambda? Again, is there a standard structure for this responseObject[]? How and where is this responseObject declared?
Why can't the lamda return something like so:
return {
'statusCode': 200,
'body': json.dumps('Hello from Lambda!'),
'Name1':event['queryStringParameters']['param1']
'Name2':event['queryStringParameters']['param2']
}
Can we build API gateway to send emails from SES without using Lambda
I am new to AWS and API, Is there a video where I can learn to make external API Calls using Lambda?
Thanks