Best Practices for Error Handling in Mutations
- Custom error code: We can predefine a set of custom error codes to send back the client incase of any failure in the mutation
- Combine operations into a single transaction: We can wrap multiple operations in a single GraphQL query into a single transaction to maintain the data consistency
- Using Objects as input parameters: Using objects in the inputs parameters of the mutation enhances readability and the overall validation logic required to run on the data.
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.