google-sheets

Drive Google Sheets via curl + jq. The user's OAuth bearer token is in $GOOGLE_SHEETS_TOKEN; every call needs Authorization: Bearer $GOOGLE_SHEETS_TOKEN. Base URL: https://sheets.googleapis.com/v4/spreadsheets. The token carries spreadsheets.readonly (+ identity); writes need the broader spreadsheets scope.

Failures are {"error":{"code","message","status"}} — show verbatim. 401 = re-install. 403 PERMISSION_DENIED on a write = read-only scope → re-connect with read+write.

The spreadsheet id is the …/spreadsheets/d/<ID>/edit segment of the URL.

S="https://sheets.googleapis.com/v4/spreadsheets"; AUTH="Authorization: Bearer $GOOGLE_SHEETS_TOKEN"
# Tabs + title
curl -sS -H "$AUTH" "$S/SPREADSHEET_ID?fields=properties.title,sheets.properties(title,sheetId)" \
  | jq '{title: .properties.title, tabs: [.sheets[].properties.title]}'

Read / append / update values

ID="SPREADSHEET_ID"
# Read a range (A1 notation; values are rows of cells)
curl -sS -H "$AUTH" "$S/$ID/values/Sheet1!A1:D20" | jq '.values'

# Append rows (confirm first). valueInputOption=USER_ENTERED parses formulas/dates.
curl -sS -X POST -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"values":[["2026-06-21","Acme",4200]]}' \
  "$S/$ID/values/Sheet1!A1:append?valueInputOption=USER_ENTERED" | jq '.updates'

# Update a fixed range: PUT /values/{range}?valueInputOption=USER_ENTERED
curl -sS -X PUT -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"values":[["done"]]}' \
  "$S/$ID/values/Sheet1!E2?valueInputOption=USER_ENTERED" | jq '.updatedCells'

Create a spreadsheet / add a tab

# New spreadsheet
curl -sS -X POST -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"properties":{"title":"Report 2026"}}' "$S" | jq '{spreadsheetId, spreadsheetUrl}'

# Add a tab via batchUpdate (addSheet request)
curl -sS -X POST -H "$AUTH" -H "Content-Type: application/json" \
  -d '{"requests":[{"addSheet":{"properties":{"title":"Q3"}}}]}' \
  "$S/$ID:batchUpdate" | jq '.replies'

Gotchas

• A1 notation: Sheet1!A1:D20; quote tab names with spaces as 'My Tab'!A1.
• valueInputOption=RAW stores strings as-is; USER_ENTERED interprets them like the UI (numbers, dates, =FORMULA). Pick deliberately.
• values is row-major ([[row1...],[row2...]]); a missing trailing cell just comes back short — don't assume rectangular.