mgjam

    private creatGetOutputResolver(
        api: appsync.CfnGraphQLApi,
        schema: appsync.CfnGraphQLSchema,
        outputDataSource: appsync.CfnDataSource
    ) {
        const name = 'GetOutputResolver';
        const requestMappingTemplate = `{
            "version": "2017-02-28",
            "operation": "Invoke",
            "payload": {

mgjam

private createApiAccessGroup(
    api: appsync.CfnGraphQLApi
): iam.Group {
    const name = 'ApiAccessGroup';
    const group = new iam.Group(this, name, {
        groupName: name
    });

    group.attachInlinePolicy(this.createApiAccessPolicy(api));

mgjam

private createApiAccessKey(
    api: appsync.CfnGraphQLApi
): iam.CfnAccessKey {
    const apiAccessGroup = this.createApiAccessGroup(api);
    const apiAccessUser = this.createApiAccessUser(apiAccessGroup);
    const name = 'ApiAccessKey';

    return  new iam.CfnAccessKey(this, name, {
        userName: apiAccessUser.userName
    });

mgjam

private createApiAccessKeyOutputs(
    apiAccessKey: iam.CfnAccessKey
) {
    new cdk.CfnOutput(this, 'ApiAccessKeyId', {
        value: apiAccessKey.ref
    });
    new cdk.CfnOutput(this, 'ApiSecretAccessKey', {
        value: apiAccessKey.attrSecretAccessKey
    });
}

mgjam

private static createLogGroup(
    scope: cdk.Construct,
    lambdaFunction: lambda.Function
) {
    new logs.LogGroup(scope, 'LogGroup', {
        logGroupName: `/aws/lambda/${lambdaFunction.functionName}`, // Autogenerated log group name
        retention: logs.RetentionDays.ONE_WEEK,
        removalPolicy: cdk.RemovalPolicy.DESTROY
    });
}

mgjam

interface IService
{
    string GetData();
}

class HttpService : IService
{
    public string GetData() => "Data obtained via HTTP";
}

mgjam

interface IService
{
    string GetData();
}

interface IHttpService : IService {}

class HttpService : IHttpService
{
    public string GetData() => "Data obtained via HTTP";

mgjam

class EmailValidationConfiguration
{
	Regex ValidationRegex;
}

class EmailValidator
{
	EmailValidator(EmailValidationConfiguration configuration) { }
}

mgjam

class EmailValidator
{
    bool IsEmailValid(string email);
}

mgjam

class ValidEmail
{
    string Email;
}

class EmailValidator
{
    ValidEmail? IsEmailValid(string email);
}