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What is EQ in GraphQL?
In the code block below the list, there is an example query with a description of what the query does for each operator. eq : short for equal, must match the given data exactly. ne : short for not equal, must be different from the given data. regex : short for regular expression, must match the given pattern.
What is __ Typename in GraphQL?
Meta fields GraphQL allows you to request __typename , a meta field, at any point in a query to get the name of the object type at that point. GraphQL services provide a few meta fields, the rest of which are used to expose the Introspection system.
What is a GraphQL directive?
A directive is an identifier preceded by a @ character, optionally followed by a list of named arguments, which can appear after almost any form of syntax in the GraphQL query or schema languages.
When to use the in filter in GraphQL?
The in filter is supported for all data types such as string, enum, Int, Int64, Float, and DateTime. For example, let’s say that your schema defines a State type that has the @id directive applied to the code field: Using the in keyword, you can query for a list of states that have the postal code WA or VA using the following query:
How does a GraphQL filter work in Gatsby?
The GraphQL filter argument is passed to the filtering system and will return all the nodes that match each of the given filters. The rest of the processing, such as pagination, is handled on the GraphQL resolver level. For a long time Gatsby used the Sift library through which you can use MongoDB queries in JavaScript.
Which is lower LTE or GTE in GraphQL?
lt: is lower than the filter value lte: is lower than or equal to the filter value gt: is greater than the filter value gte: is greater than or equal to the filter value
How to query a list of objects in GraphQL?
You can query a list of objects using GraphQL. For example, the following query fetches the title , text and and datePublished for all posts: query { queryPost { id title text datePublished } }