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add netlify handler #96
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Original file line number | Diff line number | Diff line change |
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[graphql-http](../README.md) / use/@netlify/functions | ||
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# Module: use/@netlify/functions | ||
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## Table of contents | ||
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### Type Aliases | ||
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- [HandlerOptions](use__netlify_functions.md#handleroptions) | ||
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### Functions | ||
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- [createHandler](use__netlify_functions.md#createhandler) | ||
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## Server/@netlify/functions | ||
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### HandlerOptions | ||
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Ƭ **HandlerOptions**<`Context`\>: [`HandlerOptions`](../interfaces/handler.HandlerOptions.md)<`NetlifyHandlerEvent`, `NetlifyHandlerContext`, `Context`\> | ||
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Handler options when using the netlify adapter | ||
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#### Type parameters | ||
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| Name | Type | | ||
| :------ | :------ | | ||
| `Context` | extends [`OperationContext`](handler.md#operationcontext) = `undefined` | | ||
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___ | ||
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### createHandler | ||
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▸ **createHandler**<`Context`\>(`options`): `NetlifyHandler` | ||
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Create a GraphQL over HTTP spec compliant request handler for netlify functions | ||
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#### Type parameters | ||
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| Name | Type | | ||
| :------ | :------ | | ||
| `Context` | extends [`OperationContext`](handler.md#operationcontext) = `undefined` | | ||
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#### Parameters | ||
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| Name | Type | | ||
| :------ | :------ | | ||
| `options` | [`HandlerOptions`](use__netlify_functions.md#handleroptions)<`Context`\> | | ||
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#### Returns | ||
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`NetlifyHandler` |
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import { | ||
createHandler as createRawHandler, | ||
HandlerOptions as RawHandlerOptions, | ||
OperationContext, | ||
} from '../../handler'; | ||
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import type { | ||
Handler as NetlifyHandler, | ||
HandlerEvent as NetlifyHandlerEvent, | ||
HandlerContext as NetlifyHandlerContext, | ||
} from '@netlify/functions'; | ||
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/** | ||
* Handler options when using the netlify adapter | ||
* | ||
* @category Server/@netlify/functions | ||
*/ | ||
export type HandlerOptions<Context extends OperationContext = undefined> = | ||
RawHandlerOptions<NetlifyHandlerEvent, NetlifyHandlerContext, Context>; | ||
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/** | ||
* Create a GraphQL over HTTP spec compliant request handler for netlify functions | ||
* | ||
* @category Server/@netlify/functions | ||
*/ | ||
export function createHandler<Context extends OperationContext = undefined>( | ||
options: HandlerOptions<Context>, | ||
): NetlifyHandler { | ||
const handler = createRawHandler(options); | ||
return async function handleRequest(req, ctx) { | ||
try { | ||
const [body, init] = await handler({ | ||
method: req.httpMethod, | ||
url: req.rawUrl, | ||
headers: req.headers, | ||
body: req.body, | ||
raw: req, | ||
context: ctx, | ||
}); | ||
return { | ||
// if body is null, return undefined | ||
body: body ?? undefined, | ||
statusCode: init.status, | ||
}; | ||
} catch (err) { | ||
// The handler shouldnt throw errors. | ||
// If you wish to handle them differently, consider implementing your own request handler. | ||
console.error( | ||
'Internal error occurred during request handling. ' + | ||
'Please check your implementation.', | ||
err, | ||
); | ||
return { statusCode: 500 }; | ||
} | ||
}; | ||
} |
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