@apollo/client
Version:
A fully-featured caching GraphQL client.
69 lines (68 loc) • 2.15 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.SetContextLink = void 0;
exports.setContext = setContext;
const rxjs_1 = require("rxjs");
const link_1 = require("@apollo/client/link");
/**
* @deprecated
* Use `SetContextLink` from `@apollo/client/link/context` instead. Note you
* will need to flip the arguments when using `SetContextLink` as `prevContext`
* is the first argument.
*
* ```ts
* new SetContextLink((prevContext, operation) => {
* // ...
* });
* ```
*/
function setContext(setter) {
return new SetContextLink((prevContext, operation) => setter(operation, prevContext));
}
/**
* `SetContextLink` is a non-terminating link that allows you to modify the
* context of GraphQL operations before they're passed to the next link in the
* chain. This is commonly used for authentication, adding headers, and other
* request-time configuration.
*
* @example
*
* ```ts
* import { SetContextLink } from "@apollo/client/link/context";
*
* const link = new SetContextLink((prevContext, operation) => {
* return {
* credentials: "include",
* // ...
* };
* });
* ```
*/
class SetContextLink extends link_1.ApolloLink {
constructor(setter) {
super((operation, forward) => {
const { ...request } = operation;
Object.defineProperty(request, "client", {
enumerable: false,
value: operation.client,
});
return new rxjs_1.Observable((observer) => {
let closed = false;
Promise.resolve(request)
.then((req) => setter(operation.getContext(), req))
.then(operation.setContext)
.then(() => {
if (!closed) {
forward(operation).subscribe(observer);
}
})
.catch(observer.error.bind(observer));
return () => {
closed = true;
};
});
});
}
}
exports.SetContextLink = SetContextLink;
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