Execution context.
Provides access to various information about the execution, to node execution config and to the DataStore.
Methods
getDatastore
getDatastore(): DataStore
Returns
DataStore
getEmbedderInterface
getEmbedderInterface(componentId: string): TextEmbedderInterface
Parameters
The ID of the text embedder component to access
Returns
TextEmbedderInterface
Example
const customNode = new CustomNode({
id: 'my_node',
process: async (input, context) => {
const embedder = context.getEmbedderInterface('my_embedder');
const embedding = await embedder.embed("Hello world");
console.log(embedding.length); // e.g., 768 dimensions
return input;
}
});
getExecutionConfig
getExecutionConfig<T = Record<string, any>>(): ExecutionConfig<T>
Type Parameters
T = Record<string, any>
Returns
ExecutionConfig<T> - The execution configuration
getExecutionId
Gets the execution ID from the context.
Returns
string - The execution ID
getLLMInterface
getLLMInterface(componentId: string): LLMInterface
Parameters
The ID of the LLM component to access
Returns
LLMInterface
Example
const customNode = new CustomNode({
id: 'my_node',
process: async (input, context) => {
const llm = context.getLLMInterface('my_llm');
const stream = await llm.generateContent("Tell me a joke");
for await (const chunk of stream) {
console.log(chunk);
}
return input;
}
});
getVariant
Gets the variant string from the context.
Returns
string - The variant string 
