Abstract: Extending object-schema-based application programming interfaces (APIs) is described. According to one embodiment, a method generally includes receiving, from a user, a schema defining an extension to the API and a reference to a parent node in a graph projection of the API. An API system updates the graph projection of the API to include a node representing the extension and navigable path to the node representing the extension. The API system processes a request from the user by traversing through the updated graph projection of the API, the request representing the navigable path to the node representing the extension.

Abstract: The present disclosure relates to accessing data using dynamically generated application programming interface (API) calls. According to one embodiment, a method generally includes receiving, at a computing system, a data request from a client device. The data request generally identifies a navigable path through a graph projection of the API. The computing system generates an API call to process the data request. To generate the API call for each node in the navigable path, the computing system, identifies a node in the graph projection to access data from and generates a subquery to access data from the node using one or more parameters included in the data request and defined in a schema associated with the node. The computing system executes the one or more subqueries to obtain a result and returns the result of executing the subqueries as a result of the API call.

Abstract: The present disclosure relates to processing write requests across a plurality of data sources. According to one embodiment, an example method includes determining a navigable path of nodes accessed to satisfy a write request in a graph projection of an application programming interface (API). An API service generates a plurality of subqueries, each subqueries being associated with a node in the navigable path. While traversing the navigable path to execute the write request, the API service identifies one or more nodes in the navigable path sharing an association with a data repository associated with the current node and upon which execution of a write operation associated with the current node depends. The API service coalesces a set of subqueries associated with the current node and the identified one or more nodes into a single subquery and executes the single subquery.

Abstract: The present disclosure relates to processing read requests to retrieve data from a plurality of data sources. According to one embodiment, an example method includes determining a navigable path of nodes accessed to satisfy a read request based on a graph projection of an application programming interface (API). An API service generates a plurality of subqueries, each subqueries being associated with a node in the navigable path. While traversing the navigable path to satisfy the read request, the API service identifies data associated with lower level nodes that is cached at a data source associated with a current node, replaces subqueries directed to data stored at the current node and the identified data with a single subquery executed against the data source associated with the current node, and executes the single subquery at the current node. The API service returns data accessed during traversal of the navigable path.

Abstract: The present disclosure relates to extending object-schema-based application programming interfaces (APIs). According to one embodiment, a method generally includes receiving, from a user, a schema defining an extension to the API and a reference to a parent node in a graph projection of the API. An API system updates the graph projection of the API to include a node representing the extension and navigable path to the node representing the extension. The API system processes a request from the user by traversing through the updated graph projection of the API, the request representing the navigable path to the node representing the extension.

Abstract: The present disclosure relates to accessing data using dynamically generated application programming interface (API) calls. According to one embodiment, a method generally includes receiving, at a computing system, a data request from a client device. The data request generally identifies a navigable path through a graph projection of the API. The computing system generates an API call to process the data request. To generate the API call for each node in the navigable path, the computing system, identifies a node in the graph projection to access data from and generates a subquery to access data from the node using one or more parameters included in the data request and defined in a schema associated with the node. The computing system executes the one or more subqueries to obtain a result and returns the result of executing the subqueries as a result of the API call.

Abstract: The present disclosure relates to processing read requests to retrieve data from a plurality of data sources. According to one embodiment, an example method includes determining a navigable path of nodes accessed to satisfy a read request based on a graph projection of an application programming interface (API). An API service generates a plurality of subqueries, each subqueries being associated with a node in the navigable path. While traversing the navigable path to satisfy the read request, the API service identifies data associated with lower level nodes that is cached at a data source associated with a current node, replaces subqueries directed to data stored at the current node and the identified data with a single subquery executed against the data source associated with the current node, and executes the single subquery at the current node. The API service returns data accessed during traversal of the navigable path.

Abstract: The present disclosure relates to processing write requests across a plurality of data sources. According to one embodiment, an example method includes determining a navigable path of nodes accessed to satisfy a write request in a graph projection of an application programming interface (API). An API service generates a plurality of subqueries, each subqueries being associated with a node in the navigable path. While traversing the navigable path to execute the write request, the API service identifies one or more nodes in the navigable path sharing an association with a data repository associated with the current node and upon which execution of a write operation associated with the current node depends. The API service coalesces a set of subqueries associated with the current node and the identified one or more nodes into a single subquery and executes the single subquery.

Abstract: The present disclosure relates to extending object-schema-based application programming interfaces (APIs). According to one embodiment, a method generally includes receiving, from a user, a schema defining an extension to the API and a reference to a parent node in a graph projection of the API. An API system updates the graph projection of the API to include a node representing the extension and navigable path to the node representing the extension. The API system processes a request from the user by traversing through the updated graph projection of the API, the request representing the navigable path to the node representing the extension.

Abstract: The present disclosure relates to accessing data using dynamically generated application programming interface (API) calls. According to one embodiment, a method generally includes receiving, at a computing system, a data request from a client device. The data request generally identifies a navigable path through a graph projection of the API. The computing system generates an API call to process the data request. To generate the API call for each node in the navigable path, the computing system, identifies a node in the graph projection to access data from and generates a subquery to access data from the node using one or more parameters included in the data request and defined in a schema associated with the node. The computing system executes the one or more subqueries to obtain a result and returns the result of executing the subqueries as a result of the API call.

Abstract: A ceramic nanocomposite made from silicon, oxygen and nitrogen is provided hich has a very low dielectric constant, low dielectric loss along with good strength and hardness. The ceramic nanocomposite finds use in millimeter-wave radomes and microwave radomes used on aircraft which must resist erosion from high speed impact with water, ice and dust in the atmosphere.