Type Third-Party API Responses
Generate TypeScript interfaces from third-party API responses where official types are missing or outdated.
export interface User {
id: number;
name: string;
email: string;
isActive: boolean;
score: number;
tags: string[];
address?: null;
}
export interface Root {
user: User;
createdAt: string;
version: number;
}Third-Party APIs tips
Not all APIs ship official TypeScript types. Paste a real response from Stripe, Twilio, GitHub, or any undocumented API and generate your own types.
Test with several different responses from the same endpoint — different requests may return different optional fields. Union the types manually for completeness.
Third-party API schemas evolve. Save your generated interfaces in a dedicated types/ file and regenerate them when the API updates, then use git diff to spot changes.
Once generated, annotate the interface with a comment showing the API endpoint and date — useful for knowing when the types were last validated against reality.
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