Created
July 1, 2019 04:39
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amplify/appsync client setup for cognito authed users + unauthed users via AWS_IAM
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| import Amplify from "@aws-amplify/core"; | |
| import Auth from "@aws-amplify/auth"; | |
| import { setContext } from "apollo-link-context"; | |
| import { ApolloLink } from "apollo-link"; | |
| import { createHttpLink } from "apollo-link-http"; | |
| import AWSAppSyncClient, { AUTH_TYPE, createAppSyncLink } from "aws-appsync"; | |
| import awsConfig from "../aws-exports"; | |
| Amplify.configure({ | |
| ...awsConfig, | |
| Analytics: { disabled: true } | |
| }); | |
| const appsyncClient = new AWSAppSyncClient(awsConfig, { | |
| link: createAppSyncLink({ | |
| url: awsConfig.aws_appsync_graphqlEndpoint, | |
| region: awsConfig.aws_appsync_region, | |
| auth: { | |
| type: AUTH_TYPE.AWS_IAM, | |
| credentials: async () => await Auth.currentCredentials() | |
| }, | |
| resultsFetcherLink: ApolloLink.from([ | |
| setContext(async (request, previousContext) => { | |
| try { | |
| const session = await Auth.currentSession(); | |
| if (session) { | |
| delete previousContext.headers["X-Amz-Security-Token"]; | |
| return { | |
| headers: { | |
| ...previousContext.headers, | |
| Authorization: session.getIdToken().getJwtToken() | |
| } | |
| }; | |
| } | |
| } catch (e) { | |
| // log or catch error | |
| } | |
| return { | |
| headers: previousContext.headers | |
| }; | |
| }), | |
| createHttpLink({ | |
| uri: awsConfig.aws_appsync_graphqlEndpoint | |
| }) | |
| ]) | |
| }) | |
| }); | |
| export default appsyncClient; |
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Thanks for this!
You might need to add
complexObjectsCredentials: async () => await Auth.currentCredentials(),betwen L21-L22 to avoid linting, and/or if you intend to upload to S3 from Amplify.