Questions tagged [ballerina]
For questions about the Ballerina programming language
ballerina
614
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Ballerina debugger starts only one server in my ballerina project
My Ballerina project contains multiple servers.
HTTP server (runs on port 9095)
GraphQL server (runs on port 9090)
The HTTP server acts as a proxy server for the GraphQL server.
When I start the ...
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2
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29
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How to make functions accessing a table thread safe?
I have the following code, and I want to make sure that the actions on the table are thread-safe (and make the accessor functions isolated). How should I go about it?
final table<Patient> key(id)...
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33
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How to bypass Interceptors for a specific resource in a Ballerina Service?
I have a Ballerina HTTP service with several interceptors added. This service has multiple resources, and for a specific resource, I want to bypass the interceptors.
Is there a way to achieve this ...
- 161
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42
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Is there any advantage of using a closed record with a rest descriptor over an open record?
Consider the scenario where we create a record for capturing a JSON payload. (application/json content type)
Is there any benefit of using a closed record with a JSON type rest descriptor over an open ...
- 3
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Dependency versions are not updated for Custom repositories
Dependency versions of modules from custom repositories are not automatically updated.
I have a custom repository and a module deployed (0.1.0) in it. I use this module in another Ballerina app as a ...
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52
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Versions in the dependency graph in modules and the actual modules in the pack in Ballerina
What are the scenarios can a version of a dependency of module foo (let's say bar) differs from the version packed in the pack?
Let's take crypto module. It is a dependency of module auth. When we ...
- 176
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52
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Is there a way to set other parameters in ballerina.observe or ballerinax.jaegger besides the documented?
There are just some documented parameters to configure Observability. In OpenTelemetry there are other parameters that can be set. For example, deployment.environment (https://opentelemetry.io/docs/...
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42
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How does Ballerina HTTP RetryConfig works?
I went through the Ballerina documentation and found the following document on the http:RetryConfig.
It has a statusCode field, which I need a further clarification.
statusCodes int[](default []) -...
2
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86
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Ballerina vs. Spring Boot Performance Discrepancy in Load Testing with JMeter
I'm currently conducting a research project comparing the performance of the Ballerina programming language with Spring Boot using JMeter for performance testing.
I've run several load tests on my ...
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87
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How to write sort by key function in ballerina?
string[] arr = ['abcd-4', 'abcd-1', 'abcd-3', 'abcd-2']
Here is my list. I need this array to be get sorted by the key as the last number after '-'. I know there is a sort function in ballerina but ...
4
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Comparing Performance of Ballerina vs. Spring Boot: Should I Expect Consistency Across Different Environments?
I'm currently conducting a research project comparing the performance of Ballerina programming language with Spring Boot. I'm using JMeter tests to analyze various performance metrics.
One concern I ...
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63
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Locally testing OS environmental variables in Ballerina
When using Ballerina configurables we can use a config.toml to maintain the configurations and compile the service without any issue.
If I need to use a os:getEnv("variable") in Ballerina, ...
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In the Ballerina Language how do I hot reload code via `bal run` without a server restart?
I can run a development server locally via bal run and interact with my API via Swagger in VSCode (very nice!), however, it seems that I have to kill & restart the server to reflect code changes?
...
- 731
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Querying distinct values in Ballerina Query Expressions
Is it possible to query DISTINCT values using Ballerina Query Expressions?
string[]|error connectorProducts = from record {string product;} {product} in products
select product;
...
- 2,157
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How does the field access behave after cloning a constant map in Ballerina
Consider the following code:
import ballerina/io;
type User record {|
string name;
string email;
|};
const USER = {
name: "John Doe",
email: "[email protected]"
}...
- 147