Abstract
The use of web services has increased and has become the most widely used implementation today. The most crucial part of a web development project is the choice of the right tools for application development, this decision significantly influences the requirements to implement solutions for these services. The comparative analysis between SOAP, REST and GraphQL web services aims to assess the effectiveness of data transfer capabilities. The methods used were a systematic mapping to define the metrics to use for comparison such as response time and performance. A test environment was implemented, starting with the development of a web application using each of the technologies to be evaluated and in different programming languages. Then, the performance of web services was tested with the defined metrics and tools. We found, from experimental tests, that GraphQL has a faster response time and better performance than web services based on SOAP and REST. The result of the comparison can help developers choose the optimal and appropriate technology based on the performance of web services and other metrics that influence an essential aspect such as software quality.
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