You can also insert your PlantUML or Mermaid by clicking Arrange then Insert > Advanced and choose which diagram type. You can use (Draw.IO) as a drawing tool and create “pixel perfect” versions of your sequence diagrams (which I spent too much time doing and it doesn’t look perfect). Some differences you will see are the text in note not spilling out the left and right sides or the emoji font characters rendering differently. Clicking the image will bring you to the Mermaid Live Editor, which displays the image as the better looking SVG version. Access AWS services with credentialsīelow is the PNG rendered by that source. Idpool ->- user: temporary security credentials Sts ->- idpool: temporary security credentials Idpool ->+ sts: AssumeRoleWithWebIdentity(Role) User ->+ idpool: GetCredentialsForIdentity Userpool ->- user: ID Token and Access Token
Participant s3 as «Multi-tenant✺mazon S3bucket Participant idpool as Amazon CognitoIdentity Pool Participant userpool as Amazon CognitoUser Pool Title Amazon S3 objects using IAM Temporary Credentials Using Mermaid directives I was able to get some control over colors and styling by including the %%%% I wanted to see how close I could reproduce that look.
Below is a PNG export of that diagram (SVG always seems to look better).
MermaidĪnother tool that gets mentioned for Diagrams-as-Code is Mermaid which “uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams.” For a target diagram to create with Mermaid, I used the end-state, PlantUML-based diagram from my Creating a Sequence Diagram for an Amazon Cognito scenario tutorial, which adds AWS service icons and colors for greater visual impact. This blog was included as one of the five stories in #103 Dear Architects and both the blog and the AWS Icons for PlantUML project were mentioned in AWS open source news and updates, #127. puml source files from that blog post are available in the architecture-blog examples folder inside the AWS Icons for PlantUML GitHub project. On AugI published Sequence Diagrams enrich your understanding of distributed architectures on the AWS Architecture Blog. I’m still having fun creating UML Sequence Diagrams using PlantUML.
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