I have looked at the docs but couldn't figure out how to add additional transport headers to boto3 s3 client or resource. I need to send Accept header. Please help.
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By correlate requests in Azure APIM and Application Insight with W3C distributed tracing Azure, if the client dose not send the traceparent header, seems APIM would checks the incoming request and if no traceparent, the APIM would generate and set from the request goes to backend.
In this case, we would like to return the traceparent information from the frontend response header so the consumer who inoke the API would get it, they could report API issue with this traceparent id so we can better trace/diagnose it with service log.
The question is how to get the APIM generated traceparent from inbound/outbound policy, please suggest a approach, thanks !
The traceparent HTTP header field identifies the incoming request in a tracing system. The traceparent describes the position of the incoming request in its trace graph in a portable, fixed-length format.
If the traceparent HTTP header is not available then, you can set it by using the set-header policy of API Management policies. The set-header policy is used to assigns a value to an existing response and/or request header or adds a new response and/or request header.
When placed in an inbound pipeline, this policy sets the HTTP headers for the request being passed to the target service. When placed in an outbound pipeline, this policy sets the HTTP headers for the response being sent to the gateway’s client.
The below snippet shows how you can set a new correlation context header if none is available.
<set-header name="traceparent" exists-action="skip">
<value>#($"00-{context.RequestId.ToString("N")}-0000000000000000-01")</value>
</set-header>
With the context.RequestId.ToString("N") you get the internally correlated id of the request and format it without dashes. But don't forget to set the correlation format in the Settings tab to W3C.
And with this you will get the traceparent in the header section of your request.
I would suggest you to read this W3C document on traceparent headers and Correlation headers using W3C TraceContext for more information.
I have already a code to retrieve the objects in the bucket using oci-java-sdk and this is working as expected. I would like to retrieve the URL of the file which was uploaded to the bucket in object storage and when I use this URL, this should redirect to the actual location without asking any credentials.
I saw preauthenticated requests but again i need to create one more request. I dont want to send one more request and want to get URL in the existing GetObjectResponse.
Any suggestions>
Thanks,
js
The URL of an object is not returned from the API but can be built using information you know (See Update Below!). The pattern is:
https://{api_endpoint}/n/{namespace_name}/b/{bucket_name}/o/{object_name}
Accessing that URL will (generally, see below) require authentication. Our authentication mechanism is described at:
https://docs.cloud.oracle.com/en-us/iaas/Content/API/Concepts/signingrequests.htm
Authentication is NOT required if you configure the bucket as a Public Bucket.
https://docs.cloud.oracle.com/en-us/iaas/Content/Object/Tasks/managingbuckets.htm?TocPath=Services%7CObject%20Storage%7C_____2#publicbuckets
As you mentioned, Pre-authenticated Requests (PARs) are an option. They are generally used in this situation, and they work well.
https://docs.cloud.oracle.com/en-us/iaas/Content/Object/Tasks/usingpreauthenticatedrequests.htm
Strictly speaking, it is also possible to use our Amazon S3 Compatible API...
https://docs.cloud.oracle.com/en-us/iaas/Content/Object/Tasks/s3compatibleapi.htm
...and S3's presigned URLs to generate (without involving the API) a URL that will work without additional authentication.
https://docs.aws.amazon.com/AmazonS3/latest/dev/ShareObjectPreSignedURL.html
Update: A teammate pointed out that the OCI SDK for Java now includes a getEndpoint method that can be used to get the hostname needed when querying the Object Storage API. https://docs.cloud.oracle.com/en-us/iaas/tools/java/1.25.3/com/oracle/bmc/objectstorage/ObjectStorage.html#getEndpoint--
We have an AWS API Gateway API that works for CORS most of the time. The only exception is when POSTing with invalid JSON, when CORS headers are missing from the response. If it is a valid JSON but it fails data validation, then the CORS headers are correctly set. I tried to reset the root resource by 'enable CORS' for root resource and redeploy, the same situation.
Just wondering if anyone has seen this before and how to fix it. Thanks
found the answer myself. If APIG has not reached integration in this case, need to customize the gateway response
https://docs.aws.amazon.com/apigateway/latest/developerguide/customize-gateway-responses.html
I can consume SOAP APIs in my company with wso2 api manager. However when I want to consume REST endpoints I am unable to do so. I keep getting no response.
My endpoints are like such:
GET: http://{server}:{port}/api/broker/{brokerId}
POST: http://{server}:{port}/api/addresscleanse with json payload.
I am not seeing any configuration for the backend point where we can specify that the backend service is expecting json payload or queryparameter. I tried to scan the tutorial section and did not find any thing similar to my need.
Any help would be appreciated.
You can define your resources like below. To specify the message body type of the POST request, you can send Content-Type header.
I trying to create a freeboard dashboard. I have a Arduino with four sensors that send their informations by mqtt. So, I on Node-RED I gen a JSON to response get request in /saida.
[{"id":"3f699b5.c91f064","type":"http response","z":"c7d4e8c8.509218","name":"","x":1184,"y":589,"wires":[]},{"id":"a3ed6250.1d64","type":"json","z":"c7d4e8c8.509218","name":"","x":1120.5,"y":540,"wires":[["3f699b5.c91f064"]]},{"id":"971f41c1.a1265","type":"function","z":"c7d4e8c8.509218","name":"","func":"msg.payload = {\"temperatura\":\"25\"}\nreturn msg;","outputs":1,"noerr":0,"x":1015.5,"y":584,"wires":[["a3ed6250.1d64"]]},{"id":"ed9f7a2a.604728","type":"http in","z":"c7d4e8c8.509218","name":"http in","url":"/saida","method":"get","swaggerDoc":"","x":850,"y":582,"wires":[["5b40d38c.5cc7ec","971f41c1.a1265"]]}]
In this moment, I`m using a static JSON to make a test. I have a use the host like:
my-public-host:1880/saida -> {"temperatura":"25"}
I access it by a proxy, the JSON returns ok. On ping.eu port check, the port is open. I ensure that my host is public.
But on my freeboard, I add it as datasource, then it says "never" update and I can`t read the JSON info.
What I should do to solve it?
I solved my problem.
There is a bug in freeboard.io. the thingproxy.freeboard.io don't work. The the browser don't let the freeboard.io make AJAX request for other link that isn't https. Besides, the browser don't let make a AJAX request for an other host.
There is two solutions:
Use sitelock on your host and add Access-Control-Allow-Origin to you response headers.
Use a https proxy and a browser extension to allow cross access.
bye!
Correct.
If the data source is flask based app, you can follow this link below to make freeboard read.
https://flask-cors.readthedocs.io/en/latest/