I am trying to create a service root endpoint which will respond with a list of all existing path templates. I can create the response manually. Is there any way to get the list other than this manual approach?
If you are using serverless with aws + API Gateway you probably can use get resources method from the API Gatway methods from the aws sdk
example in JS sdk:
https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/APIGateway.html#getResources-property
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I have 5 Rest APIs in AWS api gateway which need to share a already created AWS lambda for its resources? Manually using the console i was able to do that but i was not able to implement it in serverless framework. Is there any way possible to implement this scenario with serverless framework??
I am trying to create a new API using
AWS API Gateway (backed by an AWS Lambda)
Swagger UI
Authentication (OAUTH2 with Okta)
I can create a new service with Pythong + Flask + Swagger and host a docker container, which I can develop, but I'm trying to keep it serverless and use the combination of technologies in my list above.
Any help would be greatly appreciated!
I'm assuming you want to know more about the OAuth part using Okta. You'll have to create a Lambda authorizer that will perform the introspection of the token from Okta.
For the serverless API, you'll have to break your service into functions. An approach is to have one function for each RESTful resource+method:
GET /books/{id} -> getBookFunction
PUT /books/{id} -> updateBookFunction
DELETE /books/{id} -> deleteBookFunction
Lastly, if you have a well-defined Swagger file. You can use it to create your API in API Gateway. You may also use x-amazon-apigateway-* in your Swagger file and define your resource backend to refer to a Lambda function's ARN. Documentation can be found here
Yes, you're right, the question is more around how to integrate Oauth2 (Okta) with a swagger UI using AWS API Gateway.
API Gateway 2.0 already provide the ability to inspect the JWT token from Okta, so no need to create a custom Lambda there.
I'm not sure how to get this ability with redirects configured in a Swagger UI, and have the user login using the implicit/authorization-code Grant-Type and let the user interact with the swagger page.
I am working on a project and trying to use API Gateway to invoke a lambda function. The lambda function is used to update a DynamoDB item. The DynamoDB table is used to keep a running count of visitors to a web page. I need to create an API to invoke the lambda function but I'm not sure how to create the API. Any assistance is appreciated.
General steps would be:
Create AWS_PROXY integration between API Gateway and your Lambda function. The example of this is in the AWS tutorials: Set up Lambda proxy integrations in API Gatewa and in Tutorial: Build a REST API with HTTP proxy integration
Add/amend execution role to your function allowing it to access DynamoDB. This is exemplified in the AWS tutorial: Using AWS Lambda with Amazon DynamoDB.
Test the API. It can be done directly in API gateway console, or using external tools such as curl or Postman.
I figured out my issue. In my lamdba function, I needed to change the output to a JSON object. Once I made the change, I was able to get my API working. Here is a link to the fix.
I am fairly new to AWS Lambda but sure can see the benefits of it and stumbled upon the superb framework Serverless to help me built solutions on Lambda.
I started out building solutions using AWS API Gateway but really need "internal" VPC API's and not public Internet facing API's like API GW creates.
I found that Servless indeed can expose a HTTP endpoint but I can't figure out how this is done and how the URL is created.
When I deploy the Lambda from Serverless it gives me the URL, e.g.:
https://uxezd6ry8z.execute-api.eu-west-1.amazonaws.com/dev/ping
I would like to be able to find (or create) this same http listener for already existing Lambdas so my question is how is the URL created and where is teh actual HTTP listener deployed?
You might be looking for the invoke url,
1. go to https://console.aws.amazon.com/apigateway
2. select api link (which you have deployed on aws lambda).
3. select stages in left side panel and
see the invoke url.
Adding a http listener can be done by going to your lambda function, selecting the 'triggers' tab and 'add trigger', finally selecting API Gateway - but as others mentioned this does create a public facing url.
Duh, I was in the wrong AWS logon previously so the API GW was not showing any matching Serverless API and that was why I couldn't understand how they did it...
Once I logged into the AWS account that hosts the Serverless structure I can see the API GW GET API's for the Serverless HTTP listener.
Is there a way to configure the HTTP Proxy for all methods of resource at once so
FIRST:
GET,POST,PUT,DELETE of /v1/resource should all be forwarded to http://api.com/resource/{id}
If that is possible can I still map:
GET /v1/resource/schema to an S3 ?
or do i have to define them one by one.
The emergency way to save some time is probably to generate a swagger API documentation and create the API Gateway setup of it.
API Gateway doesn't support to set up multiple methods for one resource at once. As you already mentioned, you could create a Swagger template and use the API Gateway Importer tool (https://github.com/awslabs/aws-apigateway-importer).
Best,
Jurgen