Why Postman during Case API Application Implementation?

Although the overhead effort on Postman will not likely become part of the final deliverable, the resources invested in Postman shall be worth the while for the following reasons:

• Quick prototyping: No heavy-duty IDE is needed. Just provision the parameters and leave the lower-level plumbing to Postman. Some lines of JavaScript will be needed only if advanced customization is desired.
• Fault isolation: Decouple the client application from the trouble-shooting process, and therefore enable the user to pingpoint other issues such as the configuration and network.
• Lower technical requirement: Although JavaScript literacy is advisible, it requires no programming knowledge to make basic API calls. This enable non-technical members (PM, analyst, agent, etc) to conduct preliminary support or testing.
• Last but not least, its UX is more friendly than intimidating comparing to other common alternatives.