Skip to content

Latest commit

 

History

History
51 lines (41 loc) · 1.96 KB

AWS-APPSYNC.md

File metadata and controls

51 lines (41 loc) · 1.96 KB
Raw

Creating an AWS AppSync Project

AWS AppSync provides a GraphQL service for the LambdaMessenger project. With AppSync, realtime message updates can be retrieved from clients using GraphQL Subscriptions.

  1. In the AWS Admin console, navigate to the AppSync service and create a new API. Select "Author from Scratch" to get started. Create new AppSync project

  2. Under settings, set the authorization type as "OpenID Connect". The OpenID connect provider should be set using the provider name for your Firebase project. AppSync Settings

  3. Create your schema. Copy the config/aws-appsync-schema.graphql file into the schema section of the AppSync console. AppSync Schema

  4. Configure your data sources. Create the following data sources (one per each Lambda Function).

    • getConversation
    • getConversationHistory
    • initiateConversation
    • lookupUserByEmail
    • lookupUserByPhoneNumber
    • postMessage
    • registerUserWithEmail
    • registerUserWithPhoneNumber
    • updateUser

    DataSource creation should look like this:

    AppSync DataSource

  5. Configure your resolvers. You only need to set resolvers for your Queries and Mutations. Copy and paste the JSON below for each Query and Mutation:

    Request mapping templates:

    {
    "version" : "2017-02-28",
    "operation": "Invoke",
    "payload": {
    	"user" : {
        	"userId": $utils.toJson($context.identity.claims.sub),
        	"email" : $utils.toJson($context.identity.claims.email),
        	"phoneNumber" : $utils.toJson($context.identity.claims.phone_number),
            "displayName" : $utils.toJson($context.identity.claims.name),
        },
        "arguments": $utils.toJson($context.args)
    }
}

    Response mapping templates:

    $util.toJson($context.result)