RestRho: A JSON-Based Domain-Specific Language for Designing and Developing RESTful APIs to Validate RhoArchitecture

Domain-Specific Languages with JSON grammar (JSON-DSLs) are specialized programming languages tailored to specific problem domains, offering higher abstraction levels and simplifying software implementation through the JSON standard. RhoArchitecture is an approach for designing and executing JSON-DS...

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Published inFuture internet Vol. 17; no. 8; p. 346
Main Authors Chavarriaga, Enrique, Rojas, Luis, Rodríguez, Francy D., Sorbello, Kat, Jurado, Francisco
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2025
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ISSN1999-5903
1999-5903
DOI10.3390/fi17080346

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Summary:Domain-Specific Languages with JSON grammar (JSON-DSLs) are specialized programming languages tailored to specific problem domains, offering higher abstraction levels and simplifying software implementation through the JSON standard. RhoArchitecture is an approach for designing and executing JSON-DSLs, incorporating a modular programming model, a JSON-based evaluation engine, and an integrated web development environment. This paper presents RestRho, a RESTful NodeJS server developed using two JSON-DSLs designed with RhoArchitecture: SQLRho and DBRestRho. These languages enable declarative specification of database operations and HTTP requests, respectively, supporting modularity, reuse, and template-based transformations. We validate the RestRho implementation through a dual approach. First, we apply software metrics to assess code quality, maintainability, and complexity. Second, we conduct an empirical study involving 39 final-year computer engineering students, who completed 18 structured tasks and provided feedback via questionnaires. The results demonstrate the tool’s usability, development efficiency, and potential for adoption in web application development.
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ISSN:1999-5903
1999-5903
DOI:10.3390/fi17080346