I've put together a simple web service in my Drupal website, using the apposite module (Services). Now, i can check the endpoint "node" and "retrieve" inside the module, for it to expose content of nodes of my website, but i don't really want to include EVERY node in it. I'd rather want to expose only a couple of selected contents.
To explain myself better: i need to expose the content of my 'disclaimer' nodes to a mobile app, but activating the node-retrieve endpoint means all nodes are exposed and i don't really want it.
So, there's a way to limit which node must be exposed via the Service module endpoint node-retrieve?
You can use services_entity module, and use pagesize query parameter to return a specific number of nodes.
Example: return 15 nodes of type page
/api/node?pagesize=15¶meters[type]=page
Related
I made aws auto deployment code with boto3 library.
In my code, get all service list and use it.
I have to get lastest service. But I think there is no order option.
(https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ecs.html#ECS.Client.list_services)
Sometimes, first element is latest service.
But sometimes, old service is placed in first element.
Is there any option or way to get latest service?
Thanks.
The list_services method does not return details of individual services. It simply lists the services, and returns you a list of identifiers (ARNs) for those services.
To get more details of a given service, you can use describe_services. This allows you to get details of up to 10 services at a time.
So, take the list of service identifiers that you get back from list_services, and pass it to describe_services (with at most 10 service identifiers). Something like this (untested):
list_response = client.list_services(
cluster='xyz',
launchType='EC2'
)
desc_response = client.describe_services(
cluster='xyz',
services=list_response['serviceArns']
)
Note that you will have to do pagination using maxResults / nextToken if there are a lot of results.
In Node-Red, I'm using some Amazon Web Services nodes (from module node-red-node-aws), and I would like to read some configuration settings from a file (e.g. the access key ID & the secret key for the S3 nodes), but I can't find a way to set everything up dynamically, as this configuration has to be made in a config node, which can't be used in a flow.
Is there a way to do this in Node-Red?
Thanks!
Unless a node implementation specifically allows for dynamic configuration, this is not something that Node-RED does generically.
One approach I have seen is to have a flow update itself using the admin REST API into the runtime - see https://nodered.org/docs/api/admin/methods/post/flows/
That requires you to first GET the current flow configuration, modify the flow definition with the desired values and then post it back.
That approach is not suitable in all cases; the config node still only has a single active configuration.
Another approach, if the configuration is statically held in a file, is to insert them into your flow configuration before starting Node-RED - ie, have a place-holding config node configuration in the flow that you insert the credentials into.
Finally, you can use environment variables: if you set the configuration node's property to be something like $(MY_AWS_CREDS), then the runtime will substitute that environment variable on start-up.
You can update your package.json start script to start Node-RED with your desired credentials as environment variables:
"scripts": {
"start": "AWS_SECRET_ACCESS_KEY=<SECRET_KEY> AWS_ACCESS_KEY_ID=<KEY_ID> ./node_modules/.bin/node-red -s ./settings.js"
}
This worked perfect for me when using the node-red-contrib-aws-dynamodbnode. Just leave the credentials in the node blank and they get picked up from your environment variables.
What I wanted to achieve is pretty simple, if you send a request to some address, the response you get is a single integer number, like 13 for example. I think it is equivalent to hosting a .html page with single number on that page and then I can parse that string in my application. (It is a Unity game, using the WWW class to send the request.)
(This is actually a version number. If it is greater than what I stored in my app I would update it and then send another request to other place and retrieve something bigger)
I am looking for the cheapest way that can handle this. I planned to use AWS but confused what component should be use? S3? EC2? Lambda? CloudFront?
If you think doing this on a web hosting or Heroku or something else is better, I also wanted to hear about it.
To serve up a simple value, S3 should do the trick.
Create a bucket in the console, using lonely lowercase letters, digits, and dashes in the name. The name has to be globally unique among all of S3, so make up something unique. We'll call the bucket name example-bucket.
Create your file on your computer with the desired contents. If plain text, call it version.txt.
In the AWS console, select the bucket, and upload the file. While clicking through the "next" screens, put a check next to "make everything public" and accept the defaults. Upload the file.
Now, go to https://example-bucket.s3.amazonaws.com/version.txt in your browser and verify (using your actual bucket name. That's your download link.
Done. As long as you don't expect to handle over about 800 requests per second, this will do exactly what you want.
Review the S3 pricing, of course.
Although this question is suitable for Server Fault,
EC2 using nginx or apache web server will be sufficient.
Put Load balancer in front of EC2 instances.
I am completely new to Amazon Web Services, however, I did get an account and I am able to browse our list of servers. I am trying to create a database backup programmatically using .NET. I have installed AWS for .NET and I have built and run the sample Empty console program.
I can see that I can create an instance of the RDS service with the following line:
AmazonRDS rds = AWSClientFactory.CreateAmazonRDSClient(RegionEndPoint.USEast1);
However, I notice that the rds.CreateDBSnapshot(); needs a request object but I don't see anything like CreateDBSnapshotRequest in the reference .dll, can anyone help with a working example?
Like you said CreateDBSnapshotRequest is the parameter you have to pass to this function.
CreateDBSnapshotRequest is defined in the Amazon.RDS.Model namespace within the AWSSDK.dll assembly (version 1.5.25.0)
Within CreateDBSnapshotRequest you must pass the the DB Instance Identifier (for example mydbinstance-1), that you defined when you invoked the CreateDBInstance (or one of it's related methods) and the identifier for the snapshot you wish to generate (example: my-snapshot-id) for this DB Instance.
edit / example
Well there are a couple ways to achieve this, here's one example - hope it clears up your doubts
using Amazon.RDS;
using Amazon.RDS.Model;
...
...
//gets the credentials from the default configuration
AmazonRDS rdsClient = AWSClientFactory.CreateAmazonRDSClient();
CreateDBSnapshotRequest dbSnapshotRequest = new CreateDBSnapshotRequest();
dbSnapshotRequest.DBInstanceIdentifier = "my-oracle-instance";
dbSnapshotRequest.DBSnapshotIdentifier = "daily-snapshot";
rdsClient.CreateDBSnapshot(dbSnapshotRequest);
Dont't forget that the DB Instance (in the example my-oracle-instance) must exist (duh :) and must be in the available state, like this:
We are building a n-tiered style application in Kohana 3.1 which distributes JSONP powered widgets to our partners based on a partner_id.
Each partner needs to be able to call a widget and specify an environment parameter: test OR production with the initial call, which will be used to select the appropriate database.
We need our bootstrap to watch for $_REQUEST['environment'] variable and then to maintain the state of that variable whenever the partner makes a call to the widget service.
The problem is, that all requests in the application use Bootstrap.php, but many of the requests are internal - i.e. they do not come with a partner_id or environment variable. We tried to use sessions to store these, but as these are server-to-server GET/POST calls, it does not seem possible to store and recall the session id in a cookie on the server (this is browser-less GET).
Does anyone have any suggestions? We realise we could pass the environment variable with every single call internal or external, but this does not seem very robust.
We have a config file which stores partner settings (indexed by partner_id), such as the width and height of the widget and we thought about storing the partner's environment in here, but not all calls to the server would be made by a partner, so we would still need another way to trigger the environment for other calls and select the correct DB.
We also thought of storing a flat file for the partner which maintains the last requested environment, but again, as we have many internal requests after the initial one, we don't always have a knowledge (i.e. we don't usually care) which partner_id is used in the initial call.
Hope this makes sense...!
The solution would be to call the models and methods that are needed to 'do stuff' from a single controller, keeping the partner_id only in the controller and sending the requested data back once all of the 'do stuff' methods have been run, as per the MVC model.
i.e., request from partner -> route -> controller -> calls models etc -> passes back to controller -> returns view to partner
That allows the partner_id to be kept by the controller and only passed to whatever models require it to 'do stuff', keeping within the MVC framework.
If you've not kept within the confines of MVC, then things will obviously get more complex and you'll need to store the variable somewhere.