Merge branch 'multi-lang-tabs' of github.com:breez/breez-sdk-docs into multi-lang-tabs

* 'multi-lang-tabs' of github.com:breez/breez-sdk-docs:
  Remove sdkServices as its managed by the native module
  Add React Native examples
  Indentation fixes

src/guide/getting_started.md

@@ -127,7 +127,7 @@ do {
 At any point we can fetch our balance from the Greenlight node:
 
 ```swift
- do {
+do {
   let nodeInfo = try sdk.nodeInfo();
   let lnBalance = nodeInfo?.channelsBalanceMsat;
   let onchainBalance = nodeInfo?.onchainBalanceMsat;
@@ -136,6 +136,68 @@ At any point we can fetch our balance from the Greenlight node:
 }
 ```
 
+</section>
+<div slot="title">React Native</div>
+<section>
+
+The first step is to register a new node
+## Registering a new node
+```typescript
+try {
+    const seed = await mnemonicToSeed("<mnemonics words>");
+    const invite_code = "<your greenlight invite code>";
+
+    // register_node takes either greenlight credentials (certifate & key) or invite code. 
+    // At this example we are using the invite code option.
+    const credentials = await registerNode(Network.BITCOIN, seed, inviteCode); 
+} catch (error) {
+    console.log(error)
+}
+```
+
+## Recovering an existing node
+```typescript
+    const seed = await mnemonicToSeed("<mnemonics words>");
+    const credentials = await recoverNode(Network.BITCOIN, seed);
+```
+
+Once the credentials are retrieved they should be saved in a secured storage.
+The next step is to initialize the SDK and start the node:
+
+## Initializing the SDK
+```typescript
+
+// SDK events listener
+addEventListener((type, data) => {
+    console.log(`received event ${type}`);
+})
+
+// Create the default config
+let config = defaultConfig(EnvironmentType.PRODUCTION)
+
+// Customize the config object according to your needs
+config.apiKey = "your API key";
+config.workingDir = "path to an existing directory";
+
+try {
+    const sdkServices = await initServices(config, credentials.deviceKey, credentials.deviceCert, seed);
+    await start();
+} catch (error) {
+    console.log(error);
+}
+```
+
+At any point we can fetch our balance from the Greenlight node:
+
+```typescript
+try {
+    const nodeInfo = await nodeInfo();
+    const lnBalance = nodeInfo.channelsBalanceMsat;
+    const onchainBalance = nodeInfo.onchainBalanceMsat;
+} catch (error) {
+    console.log(error);
+}
+```
 </section>
 </custom-tabs>
 

src/guide/lnurl_auth.md

@@ -49,6 +49,30 @@ do {
 }
 ```
 
+</section>
+<div slot="title">React Native</div>
+<section>
+
+```typescript
+// Endpoint can also be of the form:
+// keyauth://domain.com/auth?key=val
+let lnurlAuthUrl = "lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4excttvdankjm3lw3skw0tvdankjm3xdvcn6vtp8q6n2dfsx5mrjwtrxdjnqvtzv56rzcnyv3jrxv3sxqmkyenrvv6kve3exv6nqdtyv43nqcmzvdsnvdrzx33rsenxx5unqc3cxgeqgntfgu";
+
+try {
+    const input = await parseInput(lnurlAuthUrl)
+    if (input.type === InputType.LNURL_AUTH) {
+        const result = await lnurlAuth(input.data)
+        if (result.status === "ok") {
+            print("Successfully authenticated")
+        } else {
+            print("Failed to authenticate")
+        }
+    }    
+} catch (error) {
+    console.log(error)
+}
+```
+
 </section>
 </custom-tab>
 

src/guide/lnurl_pay.md

@@ -41,6 +41,26 @@ do {
 }
 ```
 </section>
+<div slot="title">React Native</div>
+<section>
+
+```typescript
+// Endpoint can also be of the form:
+// lnurlp://domain.com/lnurl-pay?key=val
+// lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4excttsv9un7um9wdekjmmw84jxywf5x43rvv35xgmr2enrxanr2cfcvsmnwe3jxcukvde48qukgdec89snwde3vfjxvepjxpjnjvtpxd3kvdnxx5crxwpjvyunsephsz36jf
+let lnurlPayUrl = "lightning@address.com";
+
+try {
+    const input = await parseInput(lnurlAuthUrl)
+    if (input.type === InputType.LNURL_PAY) {
+        const amountSats = input.minSendable;
+        const result = await payLnurl(input.data, amountSats, "comment")
+    }    
+} catch (error) {
+    console.log(error)
+}
+```
+</section>
 </custom-tab>
 
 ## Supported Specs

src/guide/lnurl_withdraw.md

@@ -40,6 +40,25 @@ do {
     // handle error
 }
 
+```
+</section>
+<div slot="title">React Native</div>
+<section>
+
+```typescript
+// Endpoint can also be of the form:
+// lnurlw://domain.com/lnurl-withdraw?key=val
+let lnurlWithdrawUrl = "lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4exctthd96xserjv9mn7um9wdekjmmw843xxwpexdnxzen9vgunsvfexq6rvdecx93rgdmyxcuxverrvcursenpxvukzv3c8qunsdecx33nzwpnvg6ryc3hv93nzvecxgcxgwp3h33lxk";
+
+try {
+    const input = await parseInput(lnurlAuthUrl)
+    if (input.type === InputType.LNURL_WITHDRAW) {
+        const amountSats = input.minWithdrawable;
+        const result = await withdrawLnurl(input.data, amountSats, "comment")
+    }    
+} catch (error) {
+    console.log(error)
+}
 ```
 </section>
 </custom-tab>

src/guide/payments.md

@@ -25,7 +25,7 @@ sdk.send_payment(node_id.into(), Some(3000)).await?;
 
 </section>
 <div slot="title">Swift</div>
-
+<section>
 ## Receiving Lightning Payments
 Breez SDK doesn't require you to open a channel and set up your inbound liquidity.
 Breez SDK automatically connects your node to the LSP peer and you can now receive payments:
@@ -57,8 +57,39 @@ do {
     // handle error
 }
 ```
-
+</section>
+<div slot="title">React Native</div>
 <section>
+## Receiving Lightning Payments
+Breez SDK doesn't require you to open a channel and set up your inbound liquidity.
+Breez SDK automatically connects your node to the LSP peer and you can now receive payments:
 
+```typescript
+try {
+    const invoice = await receivePayment(3000, "Invoice for 3000 sats")
+} catch (error) {
+    console.log(error)
+}
+```
+
+## Sending Lightning Payments
+```typescript
+const bolt11 = "...";
+try {
+    const payment = await sendPayment(bolt11, 3000)
+} catch (error) {
+    console.log(error)
+}
+```
+
+## Sending Spontaneous Lightning Payments
+```typescript
+const nodeId = "...";
+try {
+    const payment = await sendSpontaneousPayment(nodeId, 3000)
+} catch (error) {
+    console.log(error)
+}
+```
 </section>
 </custom-tabs>

src/guide/recieve_onchain.md

@@ -8,7 +8,7 @@ There are cases when you have funds in some bitcoin address and you would like t
 ```rust,no_run
 let swap_info = sdk.receive_onchain().await?;
 
-// Send your funds to the bellow bitcoin address
+// Send your funds to the below bitcoin address
 let address = swap_info.bitcoin_address;
 ```
 
@@ -92,4 +92,55 @@ do {
 }
 ```
 </section>
+<div slot="title">React Native</div>
+<section>
+
+```typescript
+try {
+    const swapInfo = await receiveOnchain();
+
+    // Send your funds to the below bitcoin address
+    const address = swapInfo.bitcoinAddress;
+} catch (error) {
+    console.log(error)
+}
+```
+
+Once you've sent the funds to the above address, the SDK will monitor this address for unspent confirmed outputs and use a trustless submarine swap to receive these into your Lightning node. You can always monitor the status of the current in-progress swap using the following code:
+
+```typescript
+try {
+    const swapInfo = await inProgressSwap()
+} catch (error) {
+    console.log(error)
+}
+```
+
+The process of receiving funds via an on-chain address is trustless and uses a submarine swap. This means there are two ways to spend the sent funds:
+
+1. Either by a preimage that is exposed when the Lightning payment is completed - this is the positive case where the swap was successful.
+2. Or by your node when the swap didn't complete within a certain timeout - this is the negative case where your node will execute a refund.
+
+In order to execute a refund, you need to supply an on-chain address to where the refunded amount will be sent. The following code will retrieve the refundable swaps:
+
+```typescript
+try {
+    const refundables = await listRefundables()
+} catch (error) {
+    console.log(error)
+}
+```
+
+Once you have a refundable swap in hand, use the follwing code to execute a refund:
+
+```typescript
+const destinationAddress = "..."
+const satPerVbyte = <refund tx fee rate>
+try {
+    const result = await refund(refundable.bitcoinAddress, destinationAddress, satPerVbyte)
+} catch (error) {
+    console.log(error)
+}
+```
+</section>
 </custom-tabs>

src/guide/send_onchain.md

@@ -55,11 +55,11 @@ for rs in sdk.in_progress_reverse_swaps().await? {
 try {
   let currentFees = try sdk.fetchReverseSwapFees()
 
- println("Percentage fee for the reverse swap service: \(currentFees.feesPercentage))");
+  println("Percentage fee for the reverse swap service: \(currentFees.feesPercentage)");
   println("Estimated miner fees in sats for locking up funds: \(currentFees.feesLockup)");
   println("Estimated miner fees in sats for claiming funds: \(currentFees.feesClaim)");
-} catch {
-    print(error)
+} catch SdkError.Error(let message) {
+  print(message)
 }
 ```
 
@@ -82,8 +82,8 @@ let amountSat = currentFees.min;
 let satPerVbyte = <fee rate>
 try {
   try sdk.sendOnchain(amountSat: amountSat, onchainRecipientAddress: destinationAddress, pairHash: currentFees.feesHash, satPerVbyte: satPerVbyte)
-} catch {
-    print(error)
+} catch SdkError.Error(let message) {
+  print(message)
 }
 ```
 
@@ -99,6 +99,62 @@ for rs in sdk.inProgressReverseSwaps() {
 }
 ```
 </section>
+<div slot="title">React Native</div>
+<section>
+
+```typescript
+try {
+    const currentFees = await fetchReverseSwapFees()
+
+    console.log(`Percentage fee for the reverse swap service: ${currentFees.feesPercentage}`);
+    console.log(`Estimated miner fees in sats for locking up funds: ${currentFees.feesLockup}`);
+    console.log(`Estimated miner fees in sats for claiming funds: ${currentFees.feesClaim}`);
+} catch (error) {
+    console.log(error)
+}
+```
+
+The reverse swap will involve two on-chain transactions, for which the mining fees can only be estimated. They will happen
+automatically once the process is started, but the last two values above are these estimates to help you get a picture
+of the total costs.
+
+Fetching the fees also tells you what is the range of amounts you can send:
+
+```typescript
+console.log(`Minimum amount, in sats: ${current_fees.min}`);
+console.log(`Maximum amount, in sats: ${current_fees.max}`);
+```
+
+Once you checked the fees are acceptable, you can start the reverse swap:
+
+```typescript
+const destinationAddress = "bc1..";
+const amountSat = currentFees.min;
+const satPerVbyte = <fee rate>
+try {
+    const reverseSwapInfo = sendOnchain(amountSat, destinationAddress, currentFees.feesHash, satPerVbyte)
+} catch (error) {
+    console.log(error)
+}
+```
+
+Starting the reverse swap will trigger a HODL invoice payment, which will only be settled if the entire swap completes.
+This means you will see an outgoing pending payment in your list of payments, which locks those funds until the invoice
+is either settled or cancelled. This will happen automatically at the end of the reverse swap.
+
+You can check its status with:
+
+```typescript
+try {
+    const swaps = await inProgressReverseSwaps()
+    for (const swap in swaps) {
+        println(`Reverse swap ${swap.id} in progress, status is ${swap.breezStatus}`);
+    }
+} catch (error) {
+    console.log(error)
+}
+```
+</section>
 </custom-tabs>
 If the reverse swap is successful, you'll get the on-chain payment on your destination address and the HODL invoice will
 change from pending to settled.