54 lines
1.9 KiB
Markdown
54 lines
1.9 KiB
Markdown
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# @aws-sdk/token-providers
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[](https://www.npmjs.com/package/@aws-sdk/token-providers)
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[](https://www.npmjs.com/package/@aws-sdk/token-providers)
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A collection of all token providers. The token providers should be used when the authorization
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type is going to be token based. For example, the `bearer` authorization type set using
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[httpBearerAuth trait][http-bearer-auth-trait] in Smithy.
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## Static Token Provider
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```ts
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import { fromStatic } from "@aws-sdk/token-providers";
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const token = { token: "TOKEN" };
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const staticTokenProvider = fromStatic(token);
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const staticToken = await staticTokenProvider(); // returns { token: "TOKEN" }
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```
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## SSO Token Provider
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```ts
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import { fromSso } from "@aws-sdk/token-providers";
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// returns token from SSO token cache or ssoOidc.createToken() call.
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const ssoToken = await fromSso();
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```
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## Token Provider Chain
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```ts
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import { nodeProvider } from "@aws-sdk/token-providers";
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// returns token from default providers.
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const token = await nodeProvider();
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```
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[http-bearer-auth-trait]: https://smithy.io/2.0/spec/authentication-traits.html#smithy-api-httpbearerauth-trait
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---
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### Development
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This package contains a minimal copy of the SSO OIDC client, instead of relying on the full client, which
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would cause a circular dependency.
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When regenerating the bundled version of the SSO OIDC client, run the esbuild.js script and then make the following changes:
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- Remove any dependency of the generated client on the credential chain such that it would create
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a circular dependency back to this package. Because we only need the `CreateTokenCommand`, the client, and this command's
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associated `Exception`s, it is possible to remove auth dependencies.
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- Ensure all required packages are declared in the `package.json` of token-providers.
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