What is GraphQL?
GraphQL is a query-based API language that allows developers to query exactly the data that is required - no more and no less. Instead of relying on fixed endpoints (as with a REST API), the client sends a request (query) and explicitly defines which fields and information should be returned. GraphQL is primarily used to efficiently exchange data between the server and the client, e.g. in web applications or when communicating between different systems.
GraphQL was developed by Facebook and published as an open source standard. It is now managed by the GraphQL Foundation. Compared to traditional REST APIs, GraphQL offers a flexible and efficient method of data transfer that is ideal for modern applications. wherever SIM uses GraphQL to manage SIM cards, which facilitates targeted queries and the optimization of resources.
| Criterion |
GraphQL |
Rest API |
| Query data |
The client requests exactly the required fields (query). |
The server delivers predefined data structures via endpoints. |
| Data transmission |
Minimizes the amount of data transmitted, as only necessary information is sent. |
More data traffic, as often more information is transmitted than is actually needed (overfetching), or important data is missing (underfetching). |
| Flexibility |
Very flexible, as the client determines the structure of the response itself. |
Less flexibility, end points are firmly defined. |
Network load
|
Reduces the network load through targeted requests. |
Higher load with large, complex responses. |
| Versioning |
GraphQL reduces the need for API versioning as queries can be customized. However, versioning may still be necessary for major changes to the schema structure in order to ensure compatibility. |
API versions required if endpoints are changed. |
| Complexity |
Requires more initial planning as a central schema needs to be defined and maintained that covers all possible data queries. However, this offers scalability and flexibility as adjustments to the API can be made without new endpoints. |
Easier to implement, but less efficient for complex queries. |
Advantages of GraphQL for wherever SIM
- Targeted data queriesM2M SIM card management: Information on individual SIM cards, groups or specific attributes can be queried in the management portal. This avoids unnecessary data traffic.
- Example: Querying the current status, data usage or individual configuration values of a SIM card.
- Efficient use of resources: Since only the required information is sent back, the network load is reduced - a clear advantage for applications that manage many M2M SIM cards simultaneously.
- Flexibility and scalability: GraphQL offers the option of dynamically adapting queries to new requirements without changing the API. This facilitates the development and integration of new functions into wherever SIM management.
- Standardized interface: GraphQL provides a standardized API with which all relevant SIM card data can be centrally queried and managed.
- Optimization of the query time: As the client defines exactly which data it requires, unnecessary response times are avoided. This significantly improves the performance of SIM card management.
- Live updates: The client can register for changes to SIM cards and their events and then receives the changes to data (events, consumption or master data) pushed in real time.
Conclusion
GraphQL provides a powerful, flexible and efficient API for managing SIM cards. Compared to REST APIs, GraphQL enables targeted data queries, reduces network load and improves the scalability of applications. This ensures optimized, fast and on-demand use of SIM card management - a decisive advantage for companies with extensive IoT applications.
