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Skillssupabase

supabase

Coding & development

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Updated 10-16 07:25

About this skill

Troubleshooting

If requests fail, run zero doctor check-connector --env-name SUPABASE_TOKEN or zero doctor check-connector --url https://your-project.supabase.co/rest/v1/ --method GET

How to Use

Base URL: ${SUPABASE_URL}/rest/v1

All requests require the apikey header with your API key.

1. Read All Rows

Get all rows from a table:

curl -s "$SUPABASE_URL/rest/v1/users?select=*" -H "apikey: $SUPABASE_TOKEN"

2. Select Specific Columns

Get only specific columns:

curl -s "$SUPABASE_URL/rest/v1/users?select=id,name,email" -H "apikey: $SUPABASE_TOKEN"

3. Filter with Operators

Filter rows using PostgREST operators.

Equal to:

curl -s "$SUPABASE_URL/rest/v1/users?status=eq.active" -H "apikey: $SUPABASE_TOKEN"

Greater than:

curl -s "$SUPABASE_URL/rest/v1/products?price=gt.100" -H "apikey: $SUPABASE_TOKEN"

Multiple conditions (AND):

curl -s "$SUPABASE_URL/rest/v1/users?age=gte.18&status=eq.active" -H "apikey: $SUPABASE_TOKEN"

Available Operators:

Operator Meaning Example
eq Equals ?status=eq.active
neq Not equals ?status=neq.deleted
gt Greater than ?age=gt.18
gte Greater than or equal ?age=gte.21
lt Less than ?price=lt.100
lte Less than or equal ?price=lte.50
like Pattern match (use * for %) ?name=like.*john*
ilike Case-insensitive pattern ?name=ilike.*john*
in In list ?id=in.(1,2,3)
is Is null/true/false ?deleted_at=is.null

4. OR Conditions

Use or for OR logic:

curl -s "$SUPABASE_URL/rest/v1/users?or=(status.eq.active,status.eq.pending)" -H "apikey: $SUPABASE_TOKEN"

5. Ordering

Sort results.

Ascending:

curl -s "$SUPABASE_URL/rest/v1/users?order=created_at.asc" -H "apikey: $SUPABASE_TOKEN"

Descending:

curl -s "$SUPABASE_URL/rest/v1/users?order=created_at.desc" -H "apikey: $SUPABASE_TOKEN"

Multiple columns:

curl -s "$SUPABASE_URL/rest/v1/users?order=status.asc,created_at.desc" -H "apikey: $SUPABASE_TOKEN"

6. Pagination

Use limit and offset.

First 10 rows:

curl -s "$SUPABASE_URL/rest/v1/users?limit=10" -H "apikey: $SUPABASE_TOKEN"

Page 2 (rows 11-20):

curl -s "$SUPABASE_URL/rest/v1/users?limit=10&offset=10" -H "apikey: $SUPABASE_TOKEN"

7. Get Row Count

Use Prefer: count=exact header:

curl -s "$SUPABASE_URL/rest/v1/users?select=*" -H "apikey: $SUPABASE_TOKEN" -H "Prefer: count=exact" -I | grep -i "content-range"

8. Insert Single Row

Write to /tmp/supabase_request.json:

{
  "name": "John Doe",
  "email": "john@example.com"
}

Then run:

curl -s -X POST "$SUPABASE_URL/rest/v1/users" -H "apikey: $SUPABASE_TOKEN" -H "Content-Type: application/json" -H "Prefer: return=representation" -d @/tmp/supabase_request.json

9. Insert Multiple Rows

Write to /tmp/supabase_request.json:

[
  {"name": "John", "email": "john@example.com"},
  {"name": "Jane", "email": "jane@example.com"}
]

Then run:

curl -s -X POST "$SUPABASE_URL/rest/v1/users" -H "apikey: $SUPABASE_TOKEN" -H "Content-Type: application/json" -H "Prefer: return=representation" -d @/tmp/supabase_request.json

10. Update Rows

Update rows matching a filter.

Write to /tmp/supabase_request.json:

{
  "status": "inactive"
}

Then run:

curl -s -X PATCH "$SUPABASE_URL/rest/v1/users?id=eq.1" -H "apikey: $SUPABASE_TOKEN" -H "Content-Type: application/json" -H "Prefer: return=representation" -d @/tmp/supabase_request.json

11. Upsert (Insert or Update)

Use Prefer: resolution=merge-duplicates.

Write to /tmp/supabase_request.json:

{
  "id": 1,
  "name": "John Updated",
  "email": "john@example.com"
}

Then run:

curl -s -X POST "$SUPABASE_URL/rest/v1/users" -H "apikey: $SUPABASE_TOKEN" -H "Content-Type: application/json" -H "Prefer: resolution=merge-duplicates,return=representation" -d @/tmp/supabase_request.json

12. Delete Rows

Delete rows matching a filter:

curl -s -X DELETE "$SUPABASE_URL/rest/v1/users?id=eq.1" -H "apikey: $SUPABASE_TOKEN" -H "Prefer: return=representation"

13. Query Related Tables

Embed related data using foreign keys.

Get posts with their author:

curl -s "$SUPABASE_URL/rest/v1/posts?select=*,author:users(*)" -H "apikey: $SUPABASE_TOKEN"

Get users with their posts:

curl -s "$SUPABASE_URL/rest/v1/users?select=*,posts(*)" -H "apikey: $SUPABASE_TOKEN"

14. Full-Text Search

Search text columns:

curl -s "$SUPABASE_URL/rest/v1/posts?title=fts.hello" -H "apikey: $SUPABASE_TOKEN"

15. Call RPC Functions

Call PostgreSQL functions.

Write to /tmp/supabase_request.json:

{
  "param1": "value1"
}

Then run:

curl -s -X POST "$SUPABASE_URL/rest/v1/rpc/my_function" -H "apikey: $SUPABASE_TOKEN" -H "Content-Type: application/json" -d @/tmp/supabase_request.json

Response Headers

Header Description
Content-Range Row range and total count (e.g., 0-9/100)
Preference-Applied Confirms applied preferences

Guidelines

  1. Use publishable key for read operations with RLS enabled
  2. Use secret key only server-side for write operations or admin access
  3. Enable RLS on tables for security when using publishable key
  4. Use select to limit returned columns for better performance
  5. Add indexes on frequently filtered columns
  6. Use Prefer: return=representation to get inserted/updated rows back
  7. Avoid full-table operations without filters to prevent accidental data loss

API Reference