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Update 04_4__Interlude_Using_Curl.md

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04_4__Interlude_Using_Curl.md
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@ -220,7 +220,7 @@ This is almost exactly the same output that you receive when you type `bitcoin-c
After you know where your funds are, the next step in crafting a transaction is to get a change address. By now you've probably got the hang of this, and you know that for simple RPC commands, all you need to do is adjust the `method` is the `curl` command: After you know where your funds are, the next step in crafting a transaction is to get a change address. By now you've probably got the hang of this, and you know that for simple RPC commands, all you need to do is adjust the `method` is the `curl` command:
``` ```
$ curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getnewaddress", "params": ["", "legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.' $ curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.'
{ {
"result": "mrSqN37TPs89GcidSZTvXmMzjxoJZ6RKoz", "result": "mrSqN37TPs89GcidSZTvXmMzjxoJZ6RKoz",
"error": null, "error": null,
@ -228,11 +228,11 @@ $ curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc"
} }
``` ```
> **WARNING:** The parameters order is important when you are sending RPC commands using curl. For example here, if we had sent `"params": ["legacy"]` instead of `"params": ["", "legacy"]`, we would get a `bech32` address with a label of `"legacy"` instead of a `legacy` address, so pay attention to the order. > **WARNING:** The parameters order is important when you are sending RPC commands using curl. There's only one argument for `getrawchangeaddress`, but consider its close cousin `getnewaddress`. That takes two arguments: first label, then type. If we sent that same `"params": ["legacy"]` instead of `"params": ["", "legacy"]`, we would get a `bech32` address with a label of `"legacy"` instead of a `legacy` address, so pay attention to the order!
At this point, we can even revert to our standard practice of saving results to variables with additional help from `jq`: At this point, we can even revert to our standard practice of saving results to variables with additional help from `jq`:
``` ```
$ newaddress=$(curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getnewaddress", "params": ["", "legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.result') $ newaddress=$(curl --user StandUp:8eaf562eaf45c33c3328bc66008f2dd1 --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getrawchangeaddress", "params": ["legacy"] }' -H 'content-type: text/plain;' http://127.0.0.1:18332/ | jq -r '.result')
$ echo $newaddress $ echo $newaddress
mqdfnjgWr2r3sCCeuTDfe8fJ1CnycF2e6R mqdfnjgWr2r3sCCeuTDfe8fJ1CnycF2e6R
``` ```
@ -240,7 +240,7 @@ No need to worry about the downloading info. It'll go to `STDERR` and be display
## Create a Transaction ## Create a Transaction
You're now ready to create a transaction with `curl`, except using `getrawchangeaddress` instead of `getnewaddress`. You're now ready to create a transaction with `curl`.
### Ready Your Variables ### Ready Your Variables