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11 lines
505 B
Markdown
11 lines
505 B
Markdown
# API First
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Everyone **MUST** follow the **API First** principle.
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The API first principle is an extension of contract-first principle. Therefore, a development of an API **MUST** always start with API design without any upfront coding activities.
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**API design **\(e.g., description, schema\)** is the master of truth, not the API implementation.**
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API implementation **MUST** always be compliant to particular API design which represents the [contract](./contract.md) between API, and it's consumer.
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