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Learning by doing
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Trainers with practical experience
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Classroom training
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Detailed course material
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Clear content description
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Tailormade content possible
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Training that proceeds
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Small groups
GraphQL is a query language developed by Facebook that allows fast searching of various Application Program Interfaces (APIs). GraphQL aims to give clients exactly the data that is requested and nothing more. Additionally GraphQL gives those who maintain APIs the flexibility to add fields or declare fields deprecated without affecting existing queries.
In the course GraphQL Queries participants learn the concepts of the query language GraphQL. Attention is paid to how a GraphQL Server responds to GraphQL queries. The transport neutrality of GraphQL is covered and also how GraphQL works with both SQL and NoSQL databases.
The course proceeds to discuss GraphQL schemas that are the core of a GraphQL server implementation and describe the functionality available to clients. The different schema types and data types for the definition of a GraphQL schema are discussed.
Then attention is paid to GraphQL queries that can be used for both read and write operations. The fields, variables, parameters and directives in GraphQL queries are treated as well as the payload of queries.
The discussion of the GraphQL API is also part of the course. Use is made of tooling such as the GraphiQL Client and a GraphQL Server. The GraphQL Playground is available to experiment with the GraphQL API.
Finally the course covers how GrapQL can be integrated in various environments. The integration with jQuery, NodeJS and ReactJS is treated. And also it is discussed how Express GraphQL can be used and how the GraphQL API can be implemented with an Apollo server.
The course GraphQL Queries is intended for web and mobile developers who want to use GraphQL to retrieve or update server data.
Knowledge of and experience with programming and in particular working with REST APIs is beneficial for the understanding.
The concepts are discussed on the basis of presentation slides and demos. The theory is interchanged with exercises. The course times are from 9.30 to 16.30.
After successful completion of the course the participants receive an official certificate GraphQL Queries.
Module 1 : GraphQL Intro |
Module 2 : GraphQL Schema |
Module 3 : GraphQL Queries |
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What is GraphQL? Query Language Execution Engine Single Endpoint REST Alternative Over Fetching Under Fetching API Standard Declarative Fetching Mobile Apps Improved Performance Strong Typing GraphQL Tooling |
Schema Definition Language Schema Types Scalar Types Int and Float String and Boolean ID Types Object Types Query Type Mutation Type Enums List Type Required Types Relations |
Query Language Documents and Operations Root Field Query Payload Specifying Fields Field Parameters Variables Directives Aliases Fragments Mutations Create, Update, Delete Subscriptions |
Module 4 : GraphQL API |
Module 5 : Validation |
Module 6 : Integrating GraphQL |
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GraphiQL Client GraphQL Server GraphQL Playground GitHub's GraphQL API GraphQL Explorer Basic Queries Queries with Arguments mutation Keyword Pagination Default Variables Nullable Variables Meta Fields |
Input Types Type Markers Non-nullable Marker Runtime Checks Introspection Validation Rules Resolvers Context Attribute Resolver Result Format Asynchronous Resolvers Trivial Resolvers List Resolvers |
jQuery Integration Server Setup info Argument Scalar Coercion NodeJS Integration Express GraphQL Apollo Server Caching Globally Unique IDs ReactJS Integration Create React App React Server App |
All our courses are classroom courses in which the students are guided through the material on the basis of an experienced trainer with in-depth material knowledge. Theory is always interspersed with exercises.
We also do custom classes and then adjust the course content to your wishes. On request we will also discuss your practical cases.
The course times are from 9.30 to 16.30. But we are flexible in this. Sometimes people have to bring children to the daycare and other times are more convenient for them. In good consultation we can then agree on different course times.
We take care of the computers on which the course can be held. The software required for the course has already been installed on these computers. You do not have to bring a laptop to participate in the course. If you prefer to work on your own laptop, you can take it with you if you wish. The required software is then installed at the start of the course.
Our courses are generally given with Open Source software such as Eclipse, IntelliJ, Tomcat, Pycharm, Anaconda and Netbeans. You will receive the digital course material to take home after the course.
The course includes lunch that we use in a restaurant within walking distance of the course room.
The courses are planned at various places in the country. A course takes place at a location if at least 3 people register for that location. If there are registrations for different locations, the course will take place at our main location, Houten which is just below Utrecht. A course at our main location also takes place with 2 registrations and regularly with 1 registration. And we also do courses at the customer’s location if they appreciate that.
At the end of each course, participants are requested to evaluate the course in terms of course content, course material, trainer and location. The evaluation form can be found at https://www.klantenvertellen.nl/reviews/1039545/spiraltrain?lang=en. The evaluations of previous participants and previous courses can also be found there.
The intellectual property rights of the published course content, also referred to as an information sheet, belong to SpiralTrain. It is not allowed to publish the course information, the information sheet, in written or digital form without the explicit permission of SpiralTrain. The course content is to be understood as the description of the course content in sentences as well as the division of the course into modules and topics in the modules.
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