![]() ![]() The number of filters that you can apply to a single request is limited only by the maximum URL length, which generally depends on the client used. ?filter_filterType_=_spec_&_filterType_=_spec_. Specify filters in the HTTP query string: Specify search criteria similar to a WHERE clause in SQL. Specify sort order: ascending or descending. Include results from related models, for relations such as belongsTo and hasMany. Specify fields to include in or exclude from the response. The following table describes LoopBack’s filter types: Filter type Previously, only the PersistedModel.find() method (and related methods) supported this syntax. LoopBack supports a specific filter syntax: it’s a lot like SQL, but designed specifically to serialize safely without injection and to be native to JavaScript. ![]() In both REST and Node API, you can use any number of filters to define a query. See Model REST API - Find instance by ID.Īccount. Where optional filter is a JSON object containing the query filters. See Model REST API - Find first instance. See Model REST API - Find matching instances.įind first model instance using specified filters. You can string together multiple filters by constructing JSON. The -query parameter takes the HTTP response that comes back from the server and filters the results before displaying them. The -query parameter is a powerful tool you can use to customize the content and style of your output. Where filter is a JSON object containing the query filters. The filters key allows you to filter the query results for records matching specific values. The AWS CLI provides built-in JSON-based client-side filtering capabilities with the -query parameter. Queryįind all model instances using specified filters. In both cases, LoopBack models return JSON. The capabilities and options of the two APIs are the same–the only difference is the syntax used in HTTP requests versus Node function calls. Filters specify criteria for the returned data set. You can query LoopBack models using a Node API and a REST API, using filters, as outlined in the following table. A query is a read operation on models that returns a set of data or results. ![]()
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