GraphQL interview questions
Blog post from Postman
GraphQL has become the third most popular API architectural style according to Postman's 2023 State of the API Report, surpassing SOAP and following REST and Webhooks. GraphQL is a query language and server-side runtime for APIs, providing a way to request precise data without over- or under-fetching, making it valuable for web and mobile applications. It supports operations like queries for data retrieval and mutations for data modification, with schemas defining server capabilities and scalar types representing basic data types. Resolvers play a crucial role in mapping schema fields to data sources, while introspection, variables, and directives enhance query flexibility and schema exploration. GraphQL's advantages include efficient data fetching and a strongly typed schema, but it presents challenges such as a steeper learning curve and complex caching. Security practices are critical for public GraphQL APIs, requiring authentication, authorization, and input validation to protect against vulnerabilities like SQL injection and DDoS attacks. In microservices architecture, federated schemas enhance scalability and usability, while serverless functions offer cost-effective scaling for handling various traffic loads. Real-time updates are enabled through subscriptions, maintaining synchronization between server and client data. Overall, GraphQL's flexibility and efficiency are vital for diverse roles in the software industry, from developers to product managers.
No tracked trend matches for this post yet.
Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.