davidmuzi / graphql-ios-presentation

My GraphQL talk from Tacow

Environment Setup

Setup Apollo

1. Create new iOS project in Xcode
2. Use Carthage to bring in Apollo as a dependancy touch Cartfile open Cartfile github "apollostack/apollo-ios" carthage update
3. Link to Apollo.framwork
4. Add build script /usr/local/bin/carthage copy-frameworks $(SRCROOT)/Carthage/Build/iOS/Apollo.framework
5. Install apollo-codegen npm install -g apollo-codegen
6. Add codegen build phase

APOLLO_FRAMEWORK_PATH="$(eval find $FRAMEWORK_SEARCH_PATHS -name "Apollo.framework" -maxdepth 1)"

if [ -z "$APOLLO_FRAMEWORK_PATH" ]; then
echo "error: Couldn't find Apollo.framework in FRAMEWORK_SEARCH_PATHS; make sure to add the framework to your project."
exit 1
fi

cd "${SRCROOT}/${TARGET_NAME}"
$APOLLO_FRAMEWORK_PATH/check-and-run-apollo-codegen.sh generate $(find . -name '*.graphql') --schema  schema.json --output API.swift

Downloading a schema

1. apollo-codegen download-schema https://api.github.com/graphql --output schema.json --header "Authorization: Bearer <token>"
2. Build to generate API.swift, link to target

Creating Queries

1. Use GraphiQL to create query

query PublicRepos {
    viewer {
        login
        repositories(first: 10, privacy: PUBLIC) {
            edges {
                node {
                    id
                    name
                }
            }
        }
    }
}

2. Build, take a look at API.swift