winterbaume-appsync 0.2.0

AWS AppSync service implementation for winterbaume
Documentation

winterbaume-appsync

AWS AppSync service implementation for winterbaume.

This crate is part of the winterbaume workspace — a suite of in-process AWS service mocks for Rust. Use the umbrella winterbaume crate to pull in all services at once, or depend on this crate directly for AppSync only.

Winterbäume is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc. or Amazon.com, Inc. Amazon Web Services, AWS, and related marks are trademarks of Amazon.com, Inc. or its affiliates. All other trademarks are the property of their respective owners.

Coverage

Metric Value
Service AppSync
AWS model appsync
Protocol restJson1
winterbaume coverage 27/74 operations (36.5%)
stubs (routed, returns empty/default) 0/74 operations (0.0%)
moto coverage 27/74 operations (36.5%)
floci coverage 0/74 operations (0.0%)
kumo coverage 3/74 operations (4.1%)
Coverage report date 2026-05-13

Coverage is generated from .agents/docs/API_COVERAGE.md by update_readme.py. The winterbaume row counts only operations with real, state-backed logic; stubs counts handlers that route the request and return an empty/default response without real behaviour. Operation-count coverage is a prioritisation signal, not a behavioural guarantee.

See the workspace README.md for setup, usage, and the full cross-service coverage table.

Server-mode usage

Start winterbaume-server and point the AWS CLI at it:

cargo run -p winterbaume-server -- --host 127.0.0.1 --port 5555

export AWS_ENDPOINT_URL=http://localhost:5555
aws appsync list-graphql-apis

Example

use aws_sdk_appsync::config::BehaviorVersion;
use winterbaume_appsync::AppSyncService;
use winterbaume_core::MockAws;

#[tokio::main]
async fn main() {
    let mock = MockAws::builder()
        .with_service(AppSyncService::new())
        .build();

    let config = aws_config::defaults(BehaviorVersion::latest())
        .http_client(mock.http_client())
        .credentials_provider(mock.credentials_provider())
        .region(aws_sdk_appsync::config::Region::new("us-east-1"))
        .load()
        .await;

    let client = aws_sdk_appsync::Client::new(&config);

    let resp = client
        .list_graphql_apis()
        .send()
        .await
        .expect("list_graphql_apis should succeed");
    println!("GraphQL APIs: {}", resp.graphql_apis().len());
}

Implemented APIs (27)

  • CreateApi
  • CreateApiCache
  • CreateApiKey
  • CreateChannelNamespace
  • CreateGraphqlApi
  • DeleteApi
  • DeleteApiCache
  • DeleteApiKey
  • DeleteChannelNamespace
  • DeleteGraphqlApi
  • FlushApiCache
  • GetApi
  • GetApiCache
  • GetGraphqlApi
  • GetSchemaCreationStatus
  • GetType
  • ListApiKeys
  • ListApis
  • ListChannelNamespaces
  • ListGraphqlApis
  • ListTagsForResource
  • StartSchemaCreation
  • TagResource
  • UntagResource
  • UpdateApiCache
  • UpdateApiKey
  • UpdateGraphqlApi
  • AssociateApi
  • AssociateMergedGraphqlApi
  • AssociateSourceGraphqlApi
  • CreateDataSource (implemented by kumo)
  • CreateDomainName
  • CreateFunction
  • CreateResolver (implemented by kumo)
  • CreateType
  • DeleteDataSource
  • DeleteDomainName
  • DeleteFunction
  • DeleteResolver
  • DeleteType
  • DisassociateApi
  • DisassociateMergedGraphqlApi
  • DisassociateSourceGraphqlApi
  • EvaluateCode
  • EvaluateMappingTemplate
  • GetApiAssociation
  • GetChannelNamespace
  • GetDataSource
  • GetDataSourceIntrospection
  • GetDomainName
  • GetFunction
  • GetGraphqlApiEnvironmentVariables
  • GetIntrospectionSchema
  • GetResolver
  • GetSourceApiAssociation
  • ListDataSources
  • ListDomainNames
  • ListFunctions
  • ListResolvers
  • ListResolversByFunction
  • ListSourceApiAssociations
  • ListTypes
  • ListTypesByAssociation
  • PutGraphqlApiEnvironmentVariables
  • StartDataSourceIntrospection
  • StartSchemaMerge
  • UpdateApi
  • UpdateChannelNamespace
  • UpdateDataSource
  • UpdateDomainName
  • UpdateFunction
  • UpdateResolver
  • UpdateSourceApiAssociation
  • UpdateType