Hello!
Please, read TMF630 part 3.1. Uniform Contract Operations
GET must be used to retrieve a representation of a resource
POST must be used to create a new resource
GET and POST must not be used to tunnel other request methods
>>In my case there is a requirement of fetching the PUK code for the customer on demand as requested by the customer
In this case resource is PUK code, GET must be used to retrieve a representation of a resource
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Vitalii Zhakov
Veschatel LLC
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