feat: revamp providers (#70)

Co-authored-by: Victor Oliva <[email protected]>
Co-authored-by: Josep M Sobrepere <[email protected]>

Author: 3 people

docs/components/Tabs.css

@@ -0,0 +1,86 @@
+# Getting Started
+
+Start by installing `polkadot-api`, and download the latest metadata from the chain you want to connect to and generate the types:
+
+:::code-group
+
+```sh [npm]
+npm i polkadot-api
+
+# `papi add` is the command
+# `dot` is the name we're giving to this chain (can be any JS variable name)
+# `-n polkadot` specifies to download the metadata from the well-known chain polkadot
+npx papi add dot -n polkadot
+# Wait for the latest metadata to download, then generate the types:
+npx papi
+```
+
+```sh [pnpm]
+pnpm add polkadot-api
+
+# `papi add` is the command
+# `dot` is the name we're giving to this chain (can be any JS variable name)
+# `-n polkadot` specifies to download the metadata from the well-known chain polkadot
+pnpm papi add dot -n polkadot
+# Wait for the latest metadata to download, then generate the types:
+pnpm papi
+```
+
+```sh [bun]
+bun add polkadot-api
+
+# `papi add` is the command
+# `dot` is the name we're giving to this chain (can be any JS variable name)
+# `-n polkadot` specifies to download the metadata from the well-known chain polkadot
+bun papi add dot -n polkadot
+# Wait for the latest metadata to download, then generate the types:
+bun papi
+```
+
+:::
+
+:::info
+It's a really good idea to add papi to the "postinstall" script in package.json to automate generating the types after installation.
+:::
+
+Now you can create a `PolkadotClient` instance with a [provider](/providers) of your choice and start interacting with the API:
+
+### 1. Create the provider and Start the client
+
+:::code-group
+
+```typescript [Smoldot]
+// [!include ~/snippets/gettingStarted.ts:import]
+import { getSmProvider } from "polkadot-api/sm-provider"
+import { chainSpec } from "polkadot-api/chains/polkadot"
+import { start } from "polkadot-api/smoldot"
+
+// if interested, check out how to create a smoldot instance in a WebWorker
+// http://papi.how/providers/sm#webworker
+const smoldot = start()
+const chain = await smoldot.addChain({ chainSpec })
+
+// Connect to the polkadot relay chain.
+const client = createClient(getSmProvider(chain))
+```
+
+```typescript [WebSocket]
+// [!include ~/snippets/gettingStarted.ts:import]
+import { getWsProvider } from "polkadot-api/ws-provider"
+import { withPolkadotSdkCompat } from "polkadot-api/polkadot-sdk-compat"
+
+// Connect to the polkadot relay chain.
+const client = createClient(
+  // Polkadot-SDK Nodes have issues, see the documentation for more info
+  // on this enhancer https://papi.how/providers/enhancers#polkadot-sdk-compatibility-layer
+  withPolkadotSdkCompat(getWsProvider("wss://dot-rpc.stakeworld.io")),
+)
+```
+
+:::
+
+### 2. Start consuming the client!
+
+```typescript
+// [!include ~/snippets/gettingStarted.ts:usage]
+```