Invoking AWS Lambda endpoint












1















I implemented AWS lambda method to learn what I can do with it.
What I have now:




  • AWS lambda itself

  • API Gateway

  • Amazon CloudWatch Logs


In API Gateway configs I see next options:




  • Endpoint: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

  • API key: QW123E45RTY6

  • Authorization: NONE


Behind this lambda I have Java code, implementing com.amazonaws.services.lambda.runtime.RequestStreamHandler and a REST controller behind it, something like that:



@Path("/tester")
public class TestResource {

private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

private TestRepository testRepository;

public void setTestRepository(TestRepository testRepository) {
this.testRepository = testRepository;
}

@POST
@Path("/{identifier}")
@Produces(MediaType.TEXT_PLAIN)
@Consumes(MediaType.WILDCARD)
public Response store(@PathParam("identifier") String identifier, @QueryParam("hashcode") String hashcode) {
try {
this.testRepository.store(identifier, hashcode);
} catch (RuntimeException ex) {
LOG.error("Failed to store pair {}, {}", identifier, hashcode, ex);
throw new InternalServerErrorException(ex);
}
return Response.noContent().build();
}
}


Now I tried invoking this service through Postman:



Option 1 - Invoke what I saw in API Gateway:




  • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

  • Method: POST

  • Headers:


    • Key: x-api-key

    • Value: QW123E45RTY6




Result: 404 Not Found, see the appropriate logs in AWS CloudWatch.



Option 2 - Invoke my method:




  • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore/tester/qwerty123

  • Method: POST

  • Headers:


    • Key: x-api-key

    • Value: QW123E45RTY6




Result: 403 Forbidden, no logs in AWS CloudWatch.



{
"message": "Missing Authentication Token"
}


I fully understand why Option 1 did not work, but what went wrong with Option 2? Could you please help me understanding what I missed?










share|improve this question



























    1















    I implemented AWS lambda method to learn what I can do with it.
    What I have now:




    • AWS lambda itself

    • API Gateway

    • Amazon CloudWatch Logs


    In API Gateway configs I see next options:




    • Endpoint: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

    • API key: QW123E45RTY6

    • Authorization: NONE


    Behind this lambda I have Java code, implementing com.amazonaws.services.lambda.runtime.RequestStreamHandler and a REST controller behind it, something like that:



    @Path("/tester")
    public class TestResource {

    private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

    private TestRepository testRepository;

    public void setTestRepository(TestRepository testRepository) {
    this.testRepository = testRepository;
    }

    @POST
    @Path("/{identifier}")
    @Produces(MediaType.TEXT_PLAIN)
    @Consumes(MediaType.WILDCARD)
    public Response store(@PathParam("identifier") String identifier, @QueryParam("hashcode") String hashcode) {
    try {
    this.testRepository.store(identifier, hashcode);
    } catch (RuntimeException ex) {
    LOG.error("Failed to store pair {}, {}", identifier, hashcode, ex);
    throw new InternalServerErrorException(ex);
    }
    return Response.noContent().build();
    }
    }


    Now I tried invoking this service through Postman:



    Option 1 - Invoke what I saw in API Gateway:




    • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

    • Method: POST

    • Headers:


      • Key: x-api-key

      • Value: QW123E45RTY6




    Result: 404 Not Found, see the appropriate logs in AWS CloudWatch.



    Option 2 - Invoke my method:




    • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore/tester/qwerty123

    • Method: POST

    • Headers:


      • Key: x-api-key

      • Value: QW123E45RTY6




    Result: 403 Forbidden, no logs in AWS CloudWatch.



    {
    "message": "Missing Authentication Token"
    }


    I fully understand why Option 1 did not work, but what went wrong with Option 2? Could you please help me understanding what I missed?










    share|improve this question

























      1












      1








      1








      I implemented AWS lambda method to learn what I can do with it.
      What I have now:




      • AWS lambda itself

      • API Gateway

      • Amazon CloudWatch Logs


      In API Gateway configs I see next options:




      • Endpoint: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

      • API key: QW123E45RTY6

      • Authorization: NONE


      Behind this lambda I have Java code, implementing com.amazonaws.services.lambda.runtime.RequestStreamHandler and a REST controller behind it, something like that:



      @Path("/tester")
      public class TestResource {

      private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

      private TestRepository testRepository;

      public void setTestRepository(TestRepository testRepository) {
      this.testRepository = testRepository;
      }

      @POST
      @Path("/{identifier}")
      @Produces(MediaType.TEXT_PLAIN)
      @Consumes(MediaType.WILDCARD)
      public Response store(@PathParam("identifier") String identifier, @QueryParam("hashcode") String hashcode) {
      try {
      this.testRepository.store(identifier, hashcode);
      } catch (RuntimeException ex) {
      LOG.error("Failed to store pair {}, {}", identifier, hashcode, ex);
      throw new InternalServerErrorException(ex);
      }
      return Response.noContent().build();
      }
      }


      Now I tried invoking this service through Postman:



      Option 1 - Invoke what I saw in API Gateway:




      • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

      • Method: POST

      • Headers:


        • Key: x-api-key

        • Value: QW123E45RTY6




      Result: 404 Not Found, see the appropriate logs in AWS CloudWatch.



      Option 2 - Invoke my method:




      • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore/tester/qwerty123

      • Method: POST

      • Headers:


        • Key: x-api-key

        • Value: QW123E45RTY6




      Result: 403 Forbidden, no logs in AWS CloudWatch.



      {
      "message": "Missing Authentication Token"
      }


      I fully understand why Option 1 did not work, but what went wrong with Option 2? Could you please help me understanding what I missed?










      share|improve this question














      I implemented AWS lambda method to learn what I can do with it.
      What I have now:




      • AWS lambda itself

      • API Gateway

      • Amazon CloudWatch Logs


      In API Gateway configs I see next options:




      • Endpoint: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

      • API key: QW123E45RTY6

      • Authorization: NONE


      Behind this lambda I have Java code, implementing com.amazonaws.services.lambda.runtime.RequestStreamHandler and a REST controller behind it, something like that:



      @Path("/tester")
      public class TestResource {

      private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());

      private TestRepository testRepository;

      public void setTestRepository(TestRepository testRepository) {
      this.testRepository = testRepository;
      }

      @POST
      @Path("/{identifier}")
      @Produces(MediaType.TEXT_PLAIN)
      @Consumes(MediaType.WILDCARD)
      public Response store(@PathParam("identifier") String identifier, @QueryParam("hashcode") String hashcode) {
      try {
      this.testRepository.store(identifier, hashcode);
      } catch (RuntimeException ex) {
      LOG.error("Failed to store pair {}, {}", identifier, hashcode, ex);
      throw new InternalServerErrorException(ex);
      }
      return Response.noContent().build();
      }
      }


      Now I tried invoking this service through Postman:



      Option 1 - Invoke what I saw in API Gateway:




      • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore

      • Method: POST

      • Headers:


        • Key: x-api-key

        • Value: QW123E45RTY6




      Result: 404 Not Found, see the appropriate logs in AWS CloudWatch.



      Option 2 - Invoke my method:




      • URL: https://xyz.execute-api.us-east-2.amazonaws.com/dummy/testStore/tester/qwerty123

      • Method: POST

      • Headers:


        • Key: x-api-key

        • Value: QW123E45RTY6




      Result: 403 Forbidden, no logs in AWS CloudWatch.



      {
      "message": "Missing Authentication Token"
      }


      I fully understand why Option 1 did not work, but what went wrong with Option 2? Could you please help me understanding what I missed?







      rest amazon-web-services aws-lambda






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 25 '18 at 19:30









      stepiostepio

      111110




      111110
























          1 Answer
          1






          active

          oldest

          votes


















          2














          This message occurs (most of the times) when you try to call URL that doesn't exist.



          Please make sure you are calling http://api-gateway-name/stage-name/resource-name



          Also, make sure you have deployed your API.






          share|improve this answer


























          • Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

            – stepio
            Dec 2 '18 at 13:35











          Your Answer






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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          2














          This message occurs (most of the times) when you try to call URL that doesn't exist.



          Please make sure you are calling http://api-gateway-name/stage-name/resource-name



          Also, make sure you have deployed your API.






          share|improve this answer


























          • Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

            – stepio
            Dec 2 '18 at 13:35
















          2














          This message occurs (most of the times) when you try to call URL that doesn't exist.



          Please make sure you are calling http://api-gateway-name/stage-name/resource-name



          Also, make sure you have deployed your API.






          share|improve this answer


























          • Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

            – stepio
            Dec 2 '18 at 13:35














          2












          2








          2







          This message occurs (most of the times) when you try to call URL that doesn't exist.



          Please make sure you are calling http://api-gateway-name/stage-name/resource-name



          Also, make sure you have deployed your API.






          share|improve this answer















          This message occurs (most of the times) when you try to call URL that doesn't exist.



          Please make sure you are calling http://api-gateway-name/stage-name/resource-name



          Also, make sure you have deployed your API.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 25 '18 at 21:20

























          answered Nov 25 '18 at 20:50









          AlexKAlexK

          889513




          889513













          • Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

            – stepio
            Dec 2 '18 at 13:35



















          • Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

            – stepio
            Dec 2 '18 at 13:35

















          Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

          – stepio
          Dec 2 '18 at 13:35





          Thank you for your hint, you was right that URL was wrong, but I did not understand why it was wrong before I dived into the AWS client's code. I'm going to paste my finding as a separate answer here.

          – stepio
          Dec 2 '18 at 13:35




















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