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Merge pull request #22 from livepeer/speakeasy-sdk-regen-1724285992
chore: 🐝 Update SDK - Generate 3.3.1
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| # Standalone Functions | ||
|
|
||
| > [!NOTE] | ||
| > This section is useful if you are using a bundler and targetting browsers and | ||
| > runtimes where the size of an application affects performance and load times. | ||
| Every method in this SDK is also available as a standalone function. This | ||
| alternative API is suitable when targetting the browser or serverless runtimes | ||
| and using a bundler to build your application since all unused functionality | ||
| will be tree-shaken away. This includes code for unused methods, Zod schemas, | ||
| encoding helpers and response handlers. The result is dramatically smaller | ||
| impact on the application's final bundle size which grows very slowly as you use | ||
| more and more functionality from this SDK. | ||
|
|
||
| Calling methods through the main SDK class remains a valid and generally more | ||
| more ergonomic option. Standalone functions represent an optimisation for a | ||
| specific category of applications. | ||
|
|
||
| ## Example | ||
|
|
||
| ```typescript | ||
| import { LivepeerCore } from "livepeer/core.js"; | ||
| import { streamCreate } from "livepeer/funcs/streamCreate.js"; | ||
| import { Profile, TranscodeProfileEncoder, TranscodeProfileProfile, Type } from "livepeer/models/components"; | ||
| import { SDKValidationError } from "livepeer/models/errors/sdkvalidationerror.js"; | ||
|
|
||
| // Use `LivepeerCore` for best tree-shaking performance. | ||
| // You can create one instance of it to use across an application. | ||
| const livepeer = new LivepeerCore({ | ||
| apiKey: "<YOUR_BEARER_TOKEN_HERE>", | ||
| }); | ||
|
|
||
| async function run() { | ||
| const res = await streamCreate(livepeer, { | ||
| name: "test_stream", | ||
| pull: { | ||
| source: "https://myservice.com/live/stream.flv", | ||
| headers: { | ||
| "Authorization": "Bearer 123", | ||
| }, | ||
| location: { | ||
| lat: 39.739, | ||
| lon: -104.988, | ||
| }, | ||
| }, | ||
| playbackPolicy: { | ||
| type: Type.Webhook, | ||
| webhookId: "1bde4o2i6xycudoy", | ||
| webhookContext: { | ||
| "streamerId": "my-custom-id", | ||
| }, | ||
| refreshInterval: 600, | ||
| }, | ||
| profiles: [ | ||
| { | ||
| width: 1280, | ||
| name: "720p", | ||
| height: 720, | ||
| bitrate: 3000000, | ||
| fps: 30, | ||
| fpsDen: 1, | ||
| quality: 23, | ||
| gop: "2", | ||
| profile: Profile.H264Baseline, | ||
| }, | ||
| ], | ||
| record: false, | ||
| recordingSpec: { | ||
| profiles: [ | ||
| { | ||
| width: 1280, | ||
| name: "720p", | ||
| height: 720, | ||
| bitrate: 3000000, | ||
| quality: 23, | ||
| fps: 30, | ||
| fpsDen: 1, | ||
| gop: "2", | ||
| profile: TranscodeProfileProfile.H264Baseline, | ||
| encoder: TranscodeProfileEncoder.H264, | ||
| }, | ||
| ], | ||
| }, | ||
| multistream: { | ||
| targets: [ | ||
| { | ||
| profile: "720p", | ||
| videoOnly: false, | ||
| id: "PUSH123", | ||
| spec: { | ||
| name: "My target", | ||
| url: "rtmps://live.my-service.tv/channel/secretKey", | ||
| }, | ||
| }, | ||
| ], | ||
| }, | ||
| }); | ||
|
|
||
| switch (true) { | ||
| case res.ok: | ||
| // The success case will be handled outside of the switch block | ||
| break; | ||
| case res.error instanceof SDKValidationError: | ||
| // Pretty-print validation errors. | ||
| return console.log(res.error.pretty()); | ||
| case res.error instanceof Error: | ||
| return console.log(res.error); | ||
| default: | ||
| // TypeScript's type checking will fail on the following line if the above | ||
| // cases were not exhaustive. | ||
| res.error satisfies never; | ||
| throw new Error("Assertion failed: expected error checks to be exhaustive: " + res.error); | ||
| } | ||
|
|
||
|
|
||
| const { value: result } = res; | ||
|
|
||
| // Handle the result | ||
| console.log(result) | ||
| } | ||
|
|
||
| run(); | ||
| ``` | ||
|
|
||
| ## Result types | ||
|
|
||
| Standalone functions differ from SDK methods in that they return a | ||
| `Result<Value, Error>` type to capture _known errors_ and document them using | ||
| the type system. By avoiding throwing errors, application code maintains clear | ||
| control flow and error-handling become part of the regular flow of application | ||
| code. | ||
|
|
||
| > We use the term "known errors" because standalone functions, and JavaScript | ||
| > code in general, can still throw unexpected errors such as `TypeError`s, | ||
| > `RangeError`s and `DOMException`s. Exhaustively catching all errors may be | ||
| > something this SDK addresses in the future. Nevertheless, there is still a lot | ||
| > of benefit from capturing most errors and turning them into values. | ||
| The second reason for this style of programming is because these functions will | ||
| typically be used in front-end applications where exception throwing is | ||
| sometimes discouraged or considered unidiomatic. React and similar ecosystems | ||
| and libraries tend to promote this style of programming so that components | ||
| render useful content under all states (loading, success, error and so on). | ||
|
|
||
| The general pattern when calling standalone functions looks like this: | ||
|
|
||
| ```typescript | ||
| import { Core } from "<sdk-package-name>"; | ||
| import { fetchSomething } from "<sdk-package-name>/funcs/fetchSomething.js"; | ||
|
|
||
| const client = new Core(); | ||
|
|
||
| async function run() { | ||
| const result = await fetchSomething(client, { id: "123" }); | ||
| if (!result.ok) { | ||
| // You can throw the error or handle it. It's your choice now. | ||
| throw result.error; | ||
| } | ||
|
|
||
| console.log(result.value); | ||
| } | ||
|
|
||
| run(); | ||
| ``` | ||
|
|
||
| Notably, `result.error` above will have an explicit type compared to a try-catch | ||
| variation where the error in the catch block can only be of type `unknown` (or | ||
| `any` depending on your TypeScript settings). |
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