Constructor
new QueryService(httpRequestExecutor, parseExecutor)
Instantiates the query service.
Parameters:
| Name | Type | Description |
|---|---|---|
httpRequestExecutor |
function | used to execute HTTP requests |
parseExecutor |
function | function that will parse provided data |
- Source:
Methods
getServiceName()
- Source:
query(payload) → {ServiceRequest}
Executes request to query a repository.
Only POST request with a valid QueryPayload is supported.
Parameters:
| Name | Type | Description |
|---|---|---|
payload |
GetQueryPayload | is an object holding request parameters required by the query POST endpoint. |
- Source:
Throws:
-
if the payload is misconfigured
- Type
- Error
Returns:
a service request that will resolve to a readable stream to which the client can subscribe and consume the emitted strings or Quads depending on the provided response type as soon as they are available.
- Type
- ServiceRequest
update(payload) → {ServiceRequest}
Executes a request with a sparql query against /statements
endpoint to update repository data.
If contentType is set to
application/x-www-form-urlencoded then query and request
parameters from the payload are encoded as query string and sent as request
body.
If contentType is set to
application/sparql-update then the query is sent unencoded as
request body.
Parameters:
| Name | Type | Description |
|---|---|---|
payload |
UpdateQueryPayload |
- Source:
Throws:
-
if the payload is misconfigured
- Type
- Error
Returns:
service request that will be resolved if the update is successful or rejected in case of failure
- Type
- ServiceRequest