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docs: Example for integration-specific context args. #3455

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merged 3 commits into from Dec 30, 2019
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docs: Example for integration-specific context args. #3455

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34fd9de
Update authentication.md
duncanchen Oct 29, 2019
1945392
Adjust #3455 to account for new content in #3506.
abernix Nov 14, 2019
e9bc02e
Merge branch 'master' into patch-1
abernix Dec 30, 2019
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14 changes: 11 additions & 3 deletions docs/source/security/authentication.md
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Expand Up @@ -23,12 +23,20 @@ const server = new ApolloServer({
typeDefs,
resolvers,
context: ({ req }) => {
// get the user token from the headers
// Note! This example uses the `req` object to access headers,
// but the arguments received by `context` vary by integration.
// This means they will vary for Express, Koa, Lambda, etc.!
//
// To find out the correct arguments for a specific integration,
// see the `context` option in the API reference for `apollo-server`:
// https://www.apollographql.com/docs/apollo-server/api/apollo-server/

// Get the user token from the headers.
const token = req.headers.authorization || '';

// try to retrieve a user with the token
const user = getUser(token);

// add the user to the context
return { user };
},
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