action id4i_find_user_by_username { label: "Find by username" provider: id4i method: GET path: "/api/v1/users/{username}" encoding: json input: { type: "object" properties: { username: { type: "string" } } required: ["username"] additionalProperties: false } output: { type: "object" properties: { id: { type: "string" } name: { type: "string" } } } }