How is the interaction process with the backend organized? Do you agree on API contracts in advance?

Interaction with the backend is usually built on the basis of pre-agreed API contracts. This allows frontend and backend teams to work in parallel and minimize misunderstandings.

An API contract includes a description of endpoints, request and response formats, data types, possible errors, and status codes. OpenAPI (Swagger) or GraphQL schemas are often used for this.

Example process:

• Joint discussion of requirements and data format
• Documenting the API in a shared repository
• Automated testing of contracts
• Using mocks on the frontend for development until the backend is ready

This approach improves the quality and speed of development, reduces the number of bugs related to data mismatches.