commit 2803e7c9136e9c1aec5ffde7afe8960f58cd0928
Author: Jonathan Bernard <jonathan@jdbernard.com>
Date:   Sat Oct 30 22:42:00 2021 -0500

    Initial commit
    
    - Notion Page property manipulation.
    - HTTP client instantiation

diff --git a/.gitignore b/.gitignore
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index 0000000..3268211
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.*.sw?
diff --git a/notion_utils.nimble b/notion_utils.nimble
new file mode 100644
index 0000000..a1e78ac
--- /dev/null
+++ b/notion_utils.nimble
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+# Package
+
+version       = "0.1.0"
+author        = "Jonathan Bernard"
+description   = "Utilities and bindings for the Notion API."
+license       = "GPL-3.0-or-later"
+srcDir        = "src"
+
+
+# Dependencies
+
+requires "nim >= 1.4.8"
+requires "https://git.jdb-software.com/jdb/nim-time-utils.git >= 0.5.0"
diff --git a/src/notion_utils.nim b/src/notion_utils.nim
new file mode 100644
index 0000000..f96b07d
--- /dev/null
+++ b/src/notion_utils.nim
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+import std/httpclient, std/json, std/logging, std/options, std/sequtils,
+  std/strutils, std/times
+import timeutils
+
+const NOTION_MAX_PAGE_SIZE* = 100
+
+proc parseDate(str: string): DateTime =
+  try: result = parseIso8601(str)
+  except: result = times.parse(str, "YYYY-MM-dd")
+
+## Utility functions for creating Page property values
+## ---------------------------------------------------
+
+proc makeDateTimeProp*(d: Option[DateTime]): JsonNode =
+  if d.isSome: return %*{ "date": { "start": formatIso8601(d.get) } }
+  else: return %*{ "date": nil }
+
+proc makeMultiSelectProp*(values: seq[string]): JsonNode =
+  return %*{ "multi_select": [ values.mapIt(%*{ "name": it }) ] }
+
+proc makeRelationProp*(ids: seq[string]): JsonNode =
+  return %*{ "relation": [ ids.mapIt(%*{ "id": it }) ] }
+
+proc makeSelectProp*(value: string): JsonNode =
+  return %*{ "select": { "name": value } }
+
+proc makeTextProp*(propType: string, value: string): JsonNode =
+  return %*{
+    propType: [
+      {
+        "type": "text",
+        "text": { "content": value }
+      }
+    ]
+  }
+
+## Utility functions for reading Page property values
+## --------------------------------------------------
+
+proc getPropNode(page: JsonNode, propType, propName: string): JsonNode =
+  result = page{"properties", propName, propType}
+
+  if isNil(result):
+    raise newException(ValueError,
+      "could not find a " & propType & " property named '" & propName &
+      "' in the Notion page (id: " & page["id"].getStr & ")")
+
+proc getEmail*(page: JsonNode, propName: string): string =
+  let propNode = page.getPropNode("email", propName)
+  return propNode.getStr
+
+proc getMultiSelect*(page: JsonNode, propName: string): seq[string] =
+  let propNode = page.getPropNode("multi_select", propName)
+  return propNode.getElems.mapIt(it["name"].getStr)
+
+proc getPhone*(page: JsonNode, propName: string): string =
+  let propNode = page.getPropNode("phone_number", propName)
+  return propNode.getStr
+
+proc getRelationIds*(page: JsonNode, propName: string): seq[string] =
+  let propNode = page.getPropNode("relation", propName)
+  return propNode.getElems.mapIt(it["id"].getStr)
+
+proc getText*(page: JsonNode, propName: string): string =
+  let propNode = page.getPropNode("rich_text", propName)
+  if propNode.len == 0: return ""
+  return propNode[0]["plain_text"].getStr
+
+proc getTitle*(page: JsonNode, propName: string): string =
+  let propNode = page.getPropNode("title", propName)
+  if propNode.len == 0: return ""
+  return propNode[0]["plain_text"].getStr
+
+proc getSelect*(page: JsonNode, propName: string): string =
+  let propNode = page.getPropNode("select", propName)
+  if propNode.kind == JNull: return ""
+  return propNode["name"].getStr
+
+proc getDateTime*(page: JsonNode, propName: string): Option[DateTime] =
+  let propNode = page.getPropNode("date", propName)
+  if propNode.kind == JNull: result = none[DateTime]()
+  else: result = some(parseDate(propNode["start"].getStr))
+
+proc newNotionClient*(apiVersion, integrationToken: string): HttpClient =
+  return newHttpClient(headers = newHttpHeaders([
+    ("Content-Type", "application/json"),
+    ("Authorization", "Bearer " & integrationToken),
+    ("Notion-Version", apiVersion)
+  ], true))
+
+proc fetchAllPages*(
+    http: HttpClient,
+    url: string,
+    bodyTemplate = %*{ "page_size": NOTION_MAX_PAGE_SIZE}): seq[JsonNode] =
+
+  result = @[]
+  var nextCursor: string = ""
+
+  while true:
+    let body = parseJson($bodyTemplate)
+    if not nextCursor.isEmptyOrWhitespace: body["start_cursor"] = %nextCursor
+
+    debug "Fetching pages from database:\n\tPOST " & url & "\n\t" & $body
+    let jsonResp = parseJson(http.postContent(url, $body))
+
+    result = result & jsonResp["results"].getElems
+    if jsonResp.hasKey("next_cursor") and jsonResp["next_cursor"].kind != JNull:
+      nextCursor = jsonResp["next_cursor"].getStr
+
+    if nextCursor.isEmptyOrWhitespace: break
diff --git a/tests/config.nims b/tests/config.nims
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index 0000000..3bb69f8
--- /dev/null
+++ b/tests/config.nims
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+switch("path", "$projectDir/../src")
\ No newline at end of file