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6 min readTo declare a variable in Kotlin, you can use the var or val keywords followed by the variable name and its type.The var keyword is used to declare a mutable variable, which means it can be reassigned.The val keyword is used to declare an immutable variable, which means it cannot be reassigned once initialized.For example, you can declare a mutable variable of type Int as follows: var age: Int = 25 In this case, age is the name of the variable, and Int is its type.
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9 min readRate limiting in a GraphQL API involves setting limits on the number of requests a client can make within a specific timeframe. By implementing rate limiting, you can prevent abuse, protect your server's resources, and ensure fair usage for all clients. Here are some steps to implement rate limiting in a GraphQL API:Identify the rate limit policy: Determine the rate limits you want to enforce for different types of requests such as query, mutation, or subscription.
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7 min readIn Kotlin, nullable fields can be reflected using the KProperty1 interface. This interface represents a property, whether it is nullable or not. When reflecting nullable fields, we use the returnType property of KProperty1 to determine if the field is nullable.To reflect nullable fields, follow these steps:Obtain the KClass of the class containing the nullable field. This can be done using the ::class property on an instance of the class or directly on the class name.
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5 min readComparing Ohio and Oklahoma, both states have their own unique characteristics and advantages. Ohio is located in the Midwest region of the United States, while Oklahoma is situated in the Southern Central region.Ohio is known for its diverse landscapes, including rolling hills, farmland, and the scenic Lake Erie shoreline. The state offers a strong economy, with major industries such as manufacturing, healthcare, and education.
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7 min readTesting a GraphQL API involves testing the functionality, performance, and correctness of the API endpoints. Here are the important aspects to consider while implementing testing for a GraphQL API:Unit Testing: Start with unit testing individual resolvers or functions that handle specific GraphQL queries or mutations. Verify if the resolver functions return the expected data based on inputs and check for error handling.
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8 min readTo generate a JSON schema from a Kotlin class, you can use the Jackson library along with the Jackson-module-jsonSchema module. Here are the steps involved in this process:Add the necessary dependencies in your Gradle or Maven configuration to include the Jackson libraries. Create a Kotlin class that represents your data structure. Annotate the class and its properties using Jackson annotations such as @JsonRootName, @JsonProperty, etc., to define the JSON structure.
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12 min readTo deploy a GraphQL server to production, there are several steps you need to follow:Build your GraphQL server: Start by creating your GraphQL server using a suitable programming language and framework, such as Node.js with Apollo Server or Python with Graphene. Implement the necessary resolvers and schema based on your application requirements. Optimize your GraphQL schema: It's essential to design an efficient and reliable schema for your GraphQL server.
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11 min readArizona and Massachusetts are two very different states, each with their own unique qualities.Arizona, located in the southwestern region of the United States, is known for its warm climate and desert landscapes. The state experiences hot summers and mild winters, making it an attractive destination for those who enjoy outdoor activities like hiking, golfing, and exploring national parks such as the Grand Canyon.
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8 min readTo remove unresolved references in Kotlin, you can follow these steps:Check for any missing imports: Verify if all the necessary imports are present in your file. Kotlin requires explicit imports for external classes, functions, or variables that you want to use in your code. If any import statement is missing, add it to resolve the reference. Ensure correct classpath and dependencies: Make sure that the required libraries or modules are included in your project's classpath.
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13 min readFederated GraphQL services are implemented using a combination of a gateway and multiple microservices. Here is an overview of how to implement federated GraphQL services:Design Schema: Start by designing the schema for your federated services. Determine the types, queries, mutations, and subscriptions that your services will provide. Each service will have its own schema, representing a specific domain or functionality.
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7 min readBoth Wisconsin and Iowa have their own unique qualities that make them desirable places to live.Wisconsin is known for its beautiful natural landscapes, including the Great Lakes and stunning forests. The state is also famous for its cheese production, making it a dream destination for cheese lovers. Wisconsin is home to several vibrant cities like Milwaukee and Madison, which offer a variety of cultural events, bustling nightlife, and a range of entertainment options.