Initial.

Author: matthewhudson

.editorconfig

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+# editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.gitattributes

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+* text=auto eol=lf

.gitignore

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.nowignore

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+.next

.npmrc

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+package-lock=false

.nvmrc

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+v8.15.0

README.md

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+# WebPipe Block Demos
+
+In this repo we're demonstrating simple but complete example blocks. Using
+`now.sh`, Node, and the node-webpipe server module.
+
+## Examples
+
+Try running a few client requests locally.
+
+### DNS Lookup Block
+
+In this example, we're invoking a block named `inspect-hostname-dns`. This block
+lets us know if a given domain name is available for purchase. So, all we have
+to do is provide. a hostname then the block does its work to find us answer.
+
+## Example Usage
+
+```sh
+curl -v -X OPTIONS \
+  https://block-demos.webpipes.now.sh/inspect-hostname-dns
+```
+
+<details>
+  <summary>Response body is the input & output block definitions.</summary>
+
+```json
+{
+  "name": "DNS Lookup",
+  "description": "Determine whether or not a hostname exists.",
+  "inputs": [
+    {
+      "name": "hostname",
+      "type": "string",
+      "description": "A hostname to lookup."
+    }
+  ],
+  "outputs": [
+    {
+      "name": "ok",
+      "type": "bool",
+      "description": "Returns true of false if lookup succeeds."
+    }
+  ]
+}
+```
+
+</details>
+
+```sh
+curl -i -X POST \
+  -H "Content-Type: application/json" \
+  -d '{"inputs":[{"domain":"google.com"}]}' \
+https://block-demos.webpipes.now.sh/inspect-hostname-dns
+```
+
+<details>
+  <summary>Response body should match definition described above...</summary>
+  
+```json
+{
+  "outputs": [
+    {
+      "ok": true
+    }
+  ]
+}
+```
+
+Oh well, looks lke that partcular domain is already taken!
+
+## Next Steps
+
+Maybe spend some time examining the other demo blocks here to get a better feel
+for their behavior.

blocks/calculate-square-root/index.js

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+const { Block } = require('node-webpipe')
+
+new Block()
+  .name('Square Root')
+  .description('Calculates the Square Root of a number.')
+  .input('radicand', 'number', 'The number we want to find square root for.')
+  .output('square_root', 'number', 'The square root.')
+  .handle(function (inputs) {
+    return {
+      square_root: Math.sqrt(inputs.radicand)
+    }
+  })
+  .listen()