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metamask-extension/types/eth-query.d.ts

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declare module 'eth-query' {
// What it says on the tin. We omit `null` because confusingly, this is used
// for a successful response to indicate a lack of an error.
type EverythingButNull =
| string
| number
| boolean
| object
| symbol
| undefined;
type ProviderSendAsyncResponse<Result> = {
error?: { message: string };
result?: Result;
};
type ProviderSendAsyncCallback<Result> = (
error: unknown,
response: ProviderSendAsyncResponse<Result>,
) => void;
type Provider = {
sendAsync<Params, Result>(
payload: SendAsyncPayload<Params>,
callback: ProviderSendAsyncCallback<Result>,
): void;
};
type SendAsyncPayload<Params> = {
id: number;
jsonrpc: '2.0';
method: string;
params: Params;
};
type SendAsyncCallback<Result> = (
...args:
| [error: EverythingButNull, result: undefined]
| [error: null, result: Result]
) => void;
export default class EthQuery {
constructor(provider: Provider);
sendAsync<Params, Result>(
opts: Partial<SendAsyncPayload<Params>>,
callback: SendAsyncCallback<Result>,
): void;
}
}