What is repository id in aws_ecr » Repository constructor?

[Unintendedz]

https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_ecr.Repository.html

here is the example in above docs page

import * as ecr from 'aws-cdk-lib/aws-ecr';

new apprunner.Service(this, 'Service', {
  source: apprunner.Source.fromEcr({
    imageConfiguration: { port: 80 },
    repository: ecr.Repository.fromRepositoryName(this, 'NginxRepository', 'nginx'),
    tagOrDigest: 'latest',
  }),
});

in Python aws_sdk, the aws_cdk.aws_ecr.Repository.from_repository_name method's signature is

(method) from_repository_name: (scope: Construct, id: str, repository_name: str) -> IRepository

both id and repository_name are required.

but in above example, only 'NginxRepository' is passed as id, question is, I don't know where this 'NginxRepository' came from.

I just recently got into AWS, sorry if I'm missing something obvious.

any tips would be appreciated!

---

edited:

found there's another Python version document

https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_ecr/Repository.html

import aws_cdk.aws_ecr as ecr


apprunner.Service(self, "Service",
    source=apprunner.Source.from_ecr(
        image_configuration=apprunner.ImageConfiguration(port=80),
        repository=ecr.Repository.from_repository_name(self, "NginxRepository", "nginx"),
        tag_or_digest="latest"
    )
)

but this one still doesn't provide any useful information about this id

[Unintendedz]

Okay, Just got anwser from Slack, Big thanks to mrgrain.

I've left his answer here for someone who has same question as me (or...just me, maybe 🤨)

mrgrain:
Anything really. Just should be unique in the tree. id is used to identify the construct and often ends up being part of the logicalId/generated name of the resource.

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