Challenges in Error Handling
Error handling in GraphQL mutations can be challenging because of some factors –
- Proper validation for the data: The new data that is going to be inserted into the DB sometimes need proper and complex validations, unlike the standard ones provided natively by GraphQL
- Atomicity: DB transactions are expected to be atomic at various levels, and ensuring that it happens inside the mutations is essential to maintain data consistency
- Feedback on error messages: The server needs to provide valuable error messages to the client incase of any failure in the mutation
Error Handling in Mutations in GraphQL
GraphQL is a powerful open-source query language for APIs. It is known for its flexibility and efficiency in fetching data from server endpoints. GraphQL mutations allow us to update the data in the GraphQL server. Oftentimes, the data update might fail because of several reasons, network failure, retry failure, etc. and so we need some error handling incase of the operation failure to handle it gracefully. In this article, we will explore how we can do error handling in mutations in GraphQL.