From 185787beee9e0ab22d368cd4b4b866ebc0cbd59a Mon Sep 17 00:00:00 2001
From: Grzegorz Godlewski <ggodlewski@sorcerystudio.com>
Date: Wed, 4 Oct 2023 14:26:44 +0200
Subject: [PATCH] refactor: re-arranging code and providing docs and readme

---
 README.md             | 76 ++++++++++++++++++++++++++++++++-----------
 src/index.ts          |  2 +-
 src/market/helpers.ts |  7 ++++
 src/market/index.ts   |  2 +-
 4 files changed, 66 insertions(+), 21 deletions(-)

diff --git a/README.md b/README.md
index 2da5a0352..762436022 100644
--- a/README.md
+++ b/README.md
@@ -4,24 +4,25 @@
 
 <!-- TOC -->
 
-- [Golem JavaScript API](#golem-javascript-api)
-  - [Table of contents](#table-of-contents)
-  - [What's Golem and `golem-js`?](#whats-golem-and-golem-js)
-  - [Golem application development](#golem-application-development)
-    - [Installation](#installation)
-    - [Building](#building)
-    - [Usage](#usage)
-      - [Node.js context](#nodejs-context)
-      - [Web Browser context](#web-browser-context)
-    - [Testing](#testing)
-    - [Running unit tests](#running-unit-tests)
-    - [Running E2E tests](#running-e2e-tests)
-      - [NodeJS](#nodejs)
-      - [Cypress](#cypress)
-    - [Contributing](#contributing)
-  - [Controlling interactions and costs](#controlling-interactions-and-costs)
-  - [See also](#see-also)
-  <!-- TOC -->
+- [Table of contents](#table-of-contents)
+- [What's Golem and `golem-js`?](#whats-golem-and-golem-js)
+- [Golem application development](#golem-application-development)
+  - [Installation](#installation)
+  - [Building](#building)
+  - [Usage](#usage)
+    - [Node.js context](#nodejs-context)
+    - [Web Browser context](#web-browser-context)
+  - [Testing](#testing)
+  - [Running unit tests](#running-unit-tests)
+  - [Running E2E tests](#running-e2e-tests)
+    - [NodeJS](#nodejs)
+    - [Cypress](#cypress)
+  - [Contributing](#contributing)
+- [Controlling interactions and costs](#controlling-interactions-and-costs)
+  - [Limit price limits to filter out offers that are too expensive](#limit-price-limits-to-filter-out-offers-that-are-too-expensive)
+  - [Work with reliable providers](#work-with-reliable-providers)
+- [See also](#see-also)
+<!-- TOC -->
 
 ![GitHub](https://img.shields.io/github/license/golemfactory/golem-js)
 ![npm](https://img.shields.io/npm/v/@golem-sdk/golem-js)
@@ -158,7 +159,9 @@ that they define. As a Requestor, you might want to:
   like to avoid
 
 To make this easy, we provided you with a set of predefined market proposal filters, which you can combine to implement
-your own market strategy. For example:
+your own market strategy.
+
+### Limit price limits to filter out offers that are too expensive
 
 ```typescript
 import { TaskExecutor, ProposalFilters } from "@golem-sdk/golem-js";
@@ -184,6 +187,41 @@ const executor = await TaskExecutor.create({
 
 To learn more about other filters, please check the [API reference of the market/strategy module](https://docs.golem.network/docs/golem-js/reference/modules/market_strategy)
 
+### Work with reliable providers
+
+The `getHealthyProvidersWhiteList` helper will provide you with a list of Provider ID's that were checked with basic health-checks. Using this whitelist will increase the chance of working with a reliable provider. Please note, that you can also build up your own list of favourite providers and use it in a similar fashion.
+
+```typescript
+import { TaskExecutor, ProposalFilters, MarketHelpers } from "@golem-sdk/golem-js";
+
+// Prepare the price filter
+const acceptablePrice = ProposalFilters.limitPriceFilter({
+  start: 1,
+  cpuPerSec: 1 / 3600,
+  envPerSec: 1 / 3600,
+});
+
+// Collect the whitelist
+const verifiedProviders = await MarketHelpers.getHealthyProvidersWhiteList();
+
+// Prepare the whitelist filter
+const whiteList = ProposalFilters.whiteListProposalIdsFilter(verifiedProviders);
+
+const executor = await TaskExecutor.create({
+  // What do you want to run
+  package: "golem/alpine:3.18.2",
+
+  // How much you wish to spend
+  budget: 0.5,
+  proposalFilter: async (proposal) => (await acceptablePrice(proposal)) && (await whiteList(proposal)),
+
+  // Where you want to spend
+  payment: {
+    network: "polygon",
+  },
+});
+```
+
 ## See also
 
 - [Golem](https://golem.network), a global, open-source, decentralized supercomputer that anyone can access.
diff --git a/src/index.ts b/src/index.ts
index 6a009a77d..ea0ebfd89 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,7 +8,7 @@ export {
 } from "./storage";
 export { ActivityStateEnum, Result } from "./activity";
 export { AgreementCandidate, AgreementSelectors } from "./agreement";
-export { ProposalFilters, ProposalFilter, Helpers } from "./market";
+export { ProposalFilters, ProposalFilter, MarketHelpers } from "./market";
 export { Package, PackageOptions } from "./package";
 export { PaymentFilters } from "./payment";
 export { Events, BaseEvent, EventType } from "./events";
diff --git a/src/market/helpers.ts b/src/market/helpers.ts
index 282433e23..a8d5eb4f2 100644
--- a/src/market/helpers.ts
+++ b/src/market/helpers.ts
@@ -1,3 +1,10 @@
+/**
+ * Helps to obtain a whitelist of providers which were health-tested.
+ *
+ * Important: This helper requires internet access to function properly.
+ *
+ * @return An array with Golem Node IDs of the whitelisted providers. In case of any issues, it will return an empty whitelist.
+ */
 export async function getHealthyProvidersWhiteList(): Promise<string[]> {
   try {
     const response = await fetch("https://provider-health.golem.network/v1/provider-whitelist");
diff --git a/src/market/index.ts b/src/market/index.ts
index 4070b9506..5ea8eca87 100644
--- a/src/market/index.ts
+++ b/src/market/index.ts
@@ -4,4 +4,4 @@ export { Proposal, ProposalDetails } from "./proposal";
 export { MarketDecoration } from "./builder";
 export { DemandConfig } from "./config";
 export * as ProposalFilters from "./strategy";
-export * as Helpers from "./helpers";
+export * as MarketHelpers from "./helpers";