Skip to content

feat: allow overriding default fetch function #29

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
CaityGossland merged 1 commit into from
Aug 15, 2025
Merged

feat: allow overriding default fetch function #29

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 25 additions & 0 deletions src/sdk/index.test.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -230,6 +230,31 @@ describe("Codex", () => {
});
});

describe("fetch override", () => {
it("should use the fetch override", async () => {
const fetchMock = jest.fn((input, init) => {
console.log("fetchMock", input, init);
return Promise.resolve(
new Response(
JSON.stringify({
data: { getNetworks: [] },
}),
{
status: 200,
headers: new Headers({
"Content-Type": "application/json",
}),
},
),
);
});

const sdkWithFetch = new Codex("test-key", { fetch: fetchMock });
await sdkWithFetch.query(getNetworksDocument, {});
expect(fetchMock).toHaveBeenCalled();
});
});

describe("dispose", () => {
it("should dispose websocket client when it exists", async () => {
const mockDispose = jest.fn();
Expand Down
4 changes: 4 additions & 0 deletions src/sdk/index.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ export type ApiConfig = {

// Use this to apply dynamic headers to the requests
applyHeaders?: () => Promise<Record<string, string>>;

// Use this to override the default fetch implementation.
fetch?: (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>;
};

const defaultConfig: ApiConfig = {
Expand Down Expand Up @@ -83,6 +86,7 @@ export class Codex {
"X-Apollo-Operation-Name": "query",
...config.headers,
}),
fetch: config.fetch,
Copy link

@bradens bradens Aug 15, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I assume if config.fetch is undefined then it'll revert to it's original behaviour properly?

Copy link
Author

@coffeexcoin coffeexcoin Aug 15, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

correct - the underlying graphql-request library provides a default implementation if the configured value is undefined.

});
}

Expand Down