Transforming select portions of a monolithic application to microservices

A computer program product comprising one or more computer readable storage media having program instructions collectively stored on the one or more computer readable storage media, the program instructions executable to:

• determine transactions of a monolithic application;
• rank the transactions using predefined rules;
• select a candidate transaction from the ranked list;
• determine lines of application code of the monolithic application associated with the candidate transaction;
• map respective ones of the determined lines of application code to a first operation and a second operation, wherein the first operation and the second operation are different types of operation;
• and
• define a target state design including a first microservice that performs the first operation and a second microservice that performs the second operation.

A system comprising:

• a processor, a computer readable memory, one or more computer readable storage media, and program instructions collectively stored on the one or more computer readable storage media, wherein the program instructions executable by the processor via the computer readable memory to:
• determine transactions of a monolithic application;
• rank the transactions using predefined rules;
• select a candidate transaction from the ranked list;
• determine lines of application code of the monolithic application associated with the candidate transaction;
• map respective ones of the determined lines of application code to a first operation and a second operation, wherein the first operation and the second operation are different types of operation;
• and
• define a target state design including a first microservice that performs the first operation and a second microservice that performs the second operation,
• wherein the determining the lines of application code comprises:
• determining a primary token;
• and determining at least one secondary token based on the primary token.